MIDAS
Autosampler SERVICE MANUAL
Part no. 0060.160-2.0
P.O. BOX 388,
7800 AJ EMMEN,
THE NETHERLANDS
Phone: (31) 591 - 631700
Fax: (31) 591 – 630035
E-mail: [email protected]
http://www.sparkholland.com
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Table of contents IMPORTANT NOTICE ........................................................................................... 4 SAFETY REMINDERS ........................................................................................... 4
MECHANICAL SAFETY ......................................................................................... 6 ELECTRICAL SAFETY ........................................................................................... 7 1 PROGRAMMING CHART ................................................................................11 2 I/O CONNECTIONS. .....................................................................................12 3 SERVICE MODE.............................................................................................15 3.1 TRAY .....................................................................................................17 3.2 NEEDLE .................................................................................................18 3.3 TEMPERATURE CONTROL .........................................................................20 3.4 SYRINGE................................................................................................21 3.5 INJECTOR VALVE ....................................................................................22 3.6 EXTERNAL I/O ........................................................................................23 3.7 SERIAL PORT..........................................................................................24 3.8 PIERCE TEST ..........................................................................................25 3.9 LIFE TEST ..............................................................................................26 3.10 RESET LOG COUNTERS ............................................................................27
4 DISASSEMBLING ..........................................................................................28 4.1 REMOVING THE TOP COVER .....................................................................29 4.2 INJECTION VALVE ...................................................................................30 4.2.1 Replacing the Injection Valve ................................................................30 4.2.2 Replacing the Valve drive assembly........................................................31 4.2.3 Maintenance for Valco C2-2006/2346 valve.............................................32 4.2.4 Maintenance on the Rheodyne Model 7739 valve .....................................33 4.2.5 Maintenance on the Rheodyne Model 9740 valve .....................................34
4.3 DISPENSER ............................................................................................35 4.3.1 Removing the dispenser .......................................................................35 4.3.2 Dispenser valve ...................................................................................36
5 ADJUSTMENTS .............................................................................................37 5.1 NEEDLE HEIGHT ADJUSTMENT..................................................................37 5.2 SYRINGE HOME ADJUSTMENT...................................................................38 5.3 PENETRATION POINT ADJUSTMENT...........................................................39 5.3.1 Left Right adjustment.......................................................................39 5.3.2 Front Back adjustment ......................................................................40
5.4 VIAL STRIPPER ADJUSTMENT ...................................................................41 5.5 VIAL SENSOR ADJUSTMENT .....................................................................42
6 FIRMWARE REPLACEMENT ...........................................................................43 7 TROUBLE SHOOTING ....................................................................................44 7.1 ERROR CODES........................................................................................44 7.2 ANALYTICAL ...........................................................................................51
8 NEEDLE ........................................................................................................54 8.1 NEEDLE CONNECTIONS ...........................................................................54
9 PELTIER COOLING OPTION ..........................................................................55 9.1 PELTIER ELEMENT REPLACEMENT..............................................................56
10 LIST OF ACCESSORIES.............................................................................57 11 TEST PROCEDURE ....................................................................................59 Exploded view drawings and schematics ...........................................................63 0830.302 Valve drive assembly parts list ...........................................................64 Exploded view of Valve drive assembly ..............................................................65
0900.302 Syringe Dispenser assembly parts list ....................................................66 Exploded view of Syringe dispenser assembly.....................................................67
0830.305 Mains inlet assy 0830 parts list .............................................................68 Exploded view of mains inlet assy 0830 .............................................................69
0830.307 Needle drive assy 0830 parts list ...........................................................70 Exploded view of needle drive assy ...................................................................71
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0830.308 Needle arm assy 0830 parts list ............................................................72 Exploded view of Needle arm assy 0830 ............................................................73
0830.310 Oven assy 0830 parts list .....................................................................74 Exploded view of Oven assy 0830 .....................................................................75
0830.320 Keyboard cover assy 0830 parts list.......................................................76 Exploded view of keyboard cover assy 0830.......................................................77
0830.401 Bottom frame assy 0830 parts list .........................................................78 Exploded view of Bottom frame assy 0830.401...................................................79 Exploded view of Bottom frame assy (top view)..................................................80
0830.402 Mainframe assy 0830 parts list..............................................................82 Exploded view of Mainframe.............................................................................83
0830.403 Rearpanel assy 0830 parts list ..............................................................84 Exploded view Rearpanel 0830 .........................................................................85
0830.840 Cooling option 0830 parts list................................................................86 Exploded view Cooling option 0830 ...................................................................87
Electronic drawings and schematics ..................................................................88 0830.601 CPU PCB Component view of mainboard ..............................................89 0830.601 Electronic diagram mainboard ............................................................90
Tray needle Sensor PCB 0830.602 comp. view ......................................................91 Keyboard PCB 0830.603 ..................................................................................92
Multilink serial interface PCB 0725.625 .................................................................93
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IMPORTANT NOTICE
This MIDAS Service Manual is designed for use by personnel who have had training and
are experienced in servicing this type of equipment. Because of the possible hazards to
an inexperienced person in servicing this product, as well as the risk of damage to the
instrument, we strongly recommend that all servicing be performed by our Field Service
Representatives.
In addition, to improve instrument performance, changes have been made to the
instrument by us after this MIDAS Service Manual was printed. Accordingly, we make no
representations or warranties, either express of implied, that the information contained in
this MIDAS Service Manual is complete or accurate. It is understood that the purchaser
must assume all risk in the use of this Manual for the purpose of performing service upon
the instrument it covers.
Components of this instrument which are considered user-serviceable are discussed in
detail in the instrument’s Users Manual.
Spark Holland strongly recommends to use only original Spark Holland spare parts,
otherwise we do not guarantee any specification or liabilities.
SAFETY REMINDERS
The following pages summarise cautionary information basic to the safe operation of this
instrument. These safety hazards are indexed by page number in order of their
appearance in the manual. However, it is strongly recommended that the user reads the
entire manual carefully before attempting to service the instrument. In addition, be sure
to heed all, DANGER, WARNING, CAUTION, ATTENTION and NOTE signs and
pictograms which are specifically defined as follows:
DANGER:
The "DANGER sign" denotes a hazard. It calls attention to a
procedure, practice or the like, which, if not correctly done or
adhered to, could results in injury or loss of life.
Do not proceed beyond a "DANGER sign" until the indicated
conditions are fully understood and met.
WARNING
WARNING:
The "WARNING sign" denotes a hazard. It calls attention to a
procedure, practice or the like, which, if not correctly done or
adhered to, could result in severe injury or damage or
destruction of parts or all of the equipment.
Do not proceed beyond a "WARNING sign" until the indicated
conditions are fully understood and met.
CAUTION
CAUTION:
The "CAUTION sign" denotes a hazard. It calls attention to a
procedure, practice or the like, which, if not correctly done or
adhered to, could result in damage or destruction of parts or all
of the equipment.
Do not proceed beyond a "CAUTION sign" until the indicated
conditions are fully understood and met.
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ATTENTION:
The "ATTENTION sign" denotes relevant information.
Read this information first, it might be helpful or necessary
before continuing.
NOTE:
The "NOTE sign" denotes additional information.
It provides the user with advises and suggestions to ease the
use of the equipment.
ATTENTION:
Observe precautions for handling Electrostatic discharge
sensitive devices.
The following safety practices are intended to insure the safe operation of the equipment.
Electrical Hazards
1. Removal of some panels exposes potentially dangerous voltages.
Disconnect the instrument from all power sources before removing
protective panels.
2. Replace blown fuses with size and rating stipulated on the fuse panel or
holder and in the manual where listed.
3. Replace or repair faulty or frayed insulation on power cords.
4. Check actual line voltage to confirm it is the value for which this instrument
is wired. Be sure power cords are plugged into correct voltage sources.
General Precautions
1. Perform periodic leak checks on supply lines.
2. Do not allow flammable and/or toxic solvents to accumulate. Follow a
regulated, approved waste disposal program. Never dispose of such
products through the municipal sewage system.
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MECHANICAL SAFETY
Good mechanical safety practices are more important than ever, now that
microprocessors are taking control of mechanical devices. Yet, the area of mechanical
safety is often overlooked during instrument servicing. We may be able to change this
situation if you heed the following safety tips:
1. Remember to keep clothing and fingers away from rotating components. It is easy to
slip, lose a tie, or get cut while working near one of these devices.
2. Unless it is absolutely essential, never run mechanical components without the
protective guards in place.
3. Always use the tools specifically recommended for the job. This not only reduces the
chances of injury, it minimises damage to the instrument.
4. Although not always possible, it is recommended that mechanical devices should be
adjusted or calibrated with the power OFF. This is especially important if you are
working with a microprocessor-controlled instrument, which can start running without
notice or user-intervention.
5. After the mechanical repairs have been completed, always check that all mounting
hardware and safety shields are in place and secure. By doing so you will not only
ensure safe operation of the instrument, but may reduce call-backs.
As you can appreciate, all it takes is good common sense, plus good safety techniques
that are basic and easy to remember. With this in mind, you should have no trouble
servicing mechanical devices safely
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ELECTRICAL SAFETY
It is shocking but true! Many people service instruments without giving much thought to
electrical safety. Unfortunately, this can be a dangerous mistake. As electrical/electronic
devices are used more widely in modern instrumentation, it means that you may be
exposed to more and more potential shock hazards.
It pays to take a few precautions before and during servicing to avoid injury from
electrical shock. Here are a few safety tips that can help keep you on the job without a
sudden vacation:
1 Avoid standing on damp floors! People have been shocked simply by standing on a
damp floor and working on live equipment.
2 Be sure to disconnect the power cord before working on any high voltage circuitry! As
power switches disappear from new equipment, this precaution is very easy to
overlook.
3 Read and heed ALL caution labels! They are posted for your safety.
4 Take care of your test equipment. Be sure to use the right probes for the right job.
Measuring high voltage, for example, requires a well insulated high-voltage probe.
Damaged probes and cables are dangerous and should not be used. Also, be cautious
around test equipment like an oscilloscope. The oscilloscope case may become live if
you connect the cable ground to a live circuit. Avoid this dangerous situation at all
times!
The basic tips regarding good electrical safety practices are easy to remember.
Combined with good common sense, they should keep you on the job for a long time to
come.
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SPECIFICATIONS
GENERAL
Sound pressure level <70 dB
Working temperature 10 - 40°C
Installation category Category II, according to IEC 1010
Pollution degree Degree 2, according to IEC 1010
SAMPLING
Sample capacity: Standard tray:
84 vials of 1.5 ml (Std) and
3 vials of 10 ml (LSV)
Vial dimensions (cap
included):
Maximum vial height: 47 mm
Minimum vial height: 32 mm
Loop volume 1 - 5000 µl
Dispenser syringe 250 µl (standard) or 1000 µl syringe
Vial detection Missing vial detection by vial sensor.
Sample vial access <10 seconds
Headspace pressure Built-in compressor
Switching time injection
valve
Electrically <100 msec
Piercing precision needle ± 0.6 mm
Wash solvent External wash solvent bottle
Wetted parts SS316, PTFE, TEFZEL®, VESPEL®, Teflon.
Optional: PEEK
ANALYTICAL PERFORMANCE
Reproducibility RSD <= 0.3% for full loop injections
RSD <= 0.5% for partial loopfill injections,
injection volumes >10µl
RSD <= 1.0% for µl pick-up injections, injection
volumes >10µl
Memory effect < 0.05% with programmable needle wash
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Column oven Built-in column thermostat
Range: (Tambient +5) - 60°C
Accuracy ± 1°C (measured in the
centre)
Dimensions:
(W x D x L)
25 mm x 25 mm x 300 mm
1inch x 1 inch x 11.8 inch
PROGRAMMING
Methods 9 programmable methods
Injection item in method Injection mode:
Full loop injection
Partial loopfill injection
µl pick-up injection
Injection volume 1 µl - 5000 µl, with 1 µl increments
Injections per vial max. 9 injections
Analysis time max. 9 hr 59 min 59 sec
Wash item Programmable;
Wash between injections
Wash between vials
Wash between series
Mix item max. 15 programmable steps
Series 9 programmable series
Priority sample Programmable
PHYSICAL
Dimensions (W x D x H) 300 mm x 500 mm x 340 mm
11.8 in. x 19.7 in x 13.4 in
Weight 19 kg (42 lb.)
21 kg (46 lb.) with cool option
ELECTRICAL
Power requirements 115/230 VAC; +15%/-22%; 50 Hz / 60 Hz; 200
VA
Fuses For 115 VAC; two 5.0 AT-fuses
(slow, ¼” x 1¼”, UL/CSA)
For 230 VAC; two 2.5 AT-fuses
(slow, 5 x 20 mm, IEC 127)
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COMMUNICATION
Outputs Inject marker (Relay & TTL)
2 Auxiliary outputs (Relay)
Alarm output (Relay)
Inputs Next injection input (TTL)
Freeze input (TTL)
Stop input (TTL)
Serial communication port RS232C
OPTIONS (User installable)
Large capacity tray: 96 vials of 1.5 ml (STD, 12 mm OD)
Large volume tray: 24 vials of 10 ml (LSV, 22 mm OD)
PC Control: SparkLink or SparkLink Lite
Microsoft® Windows™ oriented software
package.
Including installed interface software, application
running under Windows XP.
OPTIONS (Factory installed)
Sample tray cooling Built-in Peltier cooling
Range: 4°C - 15°C
Accuracy: ± 2°C (at temperature
sensor)
(Temperature at relative humidity of 60%)
Cooling capacity: 20°C below ambient.
Bio-compatible valve Valco or Rheodyne special PEEK injection valve,
quick connect mounting.
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1 PROGRAMMING CHART
Ready screen <WASH> <MAINTENA
NCE>
<UTILS> <SERIAL
>
<TEMP> <SERVICE>
<COPY> <ERASE> <LOG> <OVEN> <TRAY COOL>1
Perform standard wash
Ndle Hor Move syringe Switch valve
Copy methods
Erase methods
Midas logbook
Serial communica
tion protocol
Control column oven
temperature
Control sample tray cooling
Service mode
[System] System Settings
<GENERAL> <METHOD> <TRAY> <IO> <SERIAL>
Loop volume
Needle volume Syringe volume
Syringe speed Skip missing vials
Air segment Headspace pressure
Use Timed events
Use Mix Use calibration vials
Tray type Inject marker pulse
length Input edge next
injection Freeze input active
Reset outputs after last series
Device identifier
[Methods] Method programming
<INJECTION> <WASH> <TIMED EV> <MIX>
Injection type:
<FULL> <PARTIAL> <PICK-UP>
Wash volume Timed events program:
Mix program:
Flush volume
No injections/vial Analysis time
Flush volume
No injections/vial Injection volume
Analysis time
No
injections/vial Injection volume Analysis time
Wash
between: -
Series -
Vials - Series
- 4 x AUX-1
- 4 x AUX-2
- INITIAL OVEN SETPOINT
- 3 x
OVENSETPOINT - END TIME
- Add
- Mix - Wait
[Series]
Method number
First sample vial Last sample vial
Use calibration vials2 First calibration vial
Last calibration vial Vials between calibration
First destination vial3
[Start/Stop] First Series
Last Series
<START> <REMOTE>
[Priority] Sample vial
[Hold/Cont.]
Hold the analysis time of the Midas
1 Optional
2 Depends on the System Settings.
3 In case Destination vials are used in the mix item.
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2 I/O CONNECTIONS.
The Midas has standard three I/O connectors:
1. TTL input connector (P2)
2. Contact closures output connector (P1)
3. Communication port (3)
WARNING
The manufacturer will not accept any liability for damages directly
or indirectly caused by connecting this machine to instruments
which do not meet relevant safety standard.
Contact closure output connector (P1):
Pin
no:
Description: Pin
no:
Description:
1 Inject marker 1 - Normally
open
10 Alarm output - Normally
open
2 Inject marker 1 - Common 11 Alarm output - Common
3 Inject marker 1 - Normally
closed
12 Alarm output - Normally
closed
4 Auxiliary 1 – Normally open 13 Auxiliary 2 - Normally open
5 Auxiliary 1 – Common 14 Auxiliary 2 - Common
6 Auxiliary 1 – Normally closed 15 Auxiliary 2 - Normally closed
7 Inject marker 2 - Normally
open
8 Inject marker 2 - Common
9 Inject marker 2 - Normally
closed
Contact closure VMAX = 150 VDC /125 VAC , IMAX = 1 A
An Inject marker output (1 and 2) will be generated when the injection valve switches
from LOAD to INJECT. The Alarm Output will be activated whenever an error occurs,
see Error Code list for a description of the error codes of the Midas.
Common (com)
Normally open
Normally closed
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TTL input connector (P2):
This connector is an active high or active low TTL input, user definable in the System
Settings. The Next Injection Input can be used when the Midas works in Remote
Control and in Ready mode. The Freeze Input and Stop Input can be used to control
the Midas by other devices.
Connector P2: TTL inputs.
Pin
no:
Description:
1 Next Injection
Input
2 Signal Ground
3 Freeze Input
4 Stop Input
5-9 Signal Ground
Autosampler Autosampler
Next Injection Input:
This input will start the next injection sequence when the Midas is started in Remote
Control. After finishing the injection sequence the Midas will wait for the Next
Injection Input.
From the Ready screen a Next Injection Input will start the latest programmed
series. In this case the Midas will not wait for the Next Injection Input before
continuing with the next injection. The Midas will execute the complete programmed
series as if it was started with the [Start/Stop] key.
Freeze input:
The Midas will freeze the analysis time for the time this input is active. If the Freeze
Input is activated while the analysis time is not running, the Midas will perform all
programmed pre-injection sample handling (mix method and loading part of the
injection method). But the Midas will wait with injecting the sample until the Freeze
Input is no longer active.
Stop Input:
With this input the run of the Midas is immediately aborted and returns to the Ready
screen. In case the Midas is in Remote Control, the Run of the Midas is immediately
aborted but the Midas remains in Remote Control and can not be re-started with a
Next Injection Input.
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Communication port (P3):
The Midas is standard equipped with Multilink male-female 9 pins D-connector for serial
communication. This interface allows you to connect your Midas with other instruments,
like Prospekt 2 , Mistral Column oven and PC.
To achieve communication between the Midas and the Software on the PC the Device
identifier should be set at the same value.
The identifier of the Midas is programmable from 60 to 69. To change the Device
Identifier, press: SYSTEM, MENU and <SERIAL>
To use the serial communication press MENU and <SERIAL>.
The pin connections of the 9 pins D-connectors are as follows:
Port OUT (9 pins D-connector male) Port IN (9 pins D-connector
female)
Pin no. Description Pin no. Description
2 Rx-2 2 Tx-1
3 Tx-2 3 Rx-1
4 Valve_out 4 Valve_in
5 Gnd 5 Gnd
6 AS_ready_in 6 AS_ready_out
7 Downstream_sync_2 7 Downstream_sync_1
8 Upstream_sync_2 8 Upstream_sync_1
NOTE:
The above described multilink PCB is the standard
communication PCB.
Optional other interfaces like RS422 can be found on different
OEM versions.
• Set the dipswitch S1 and S2 as follows: S1 1 2 3 4
ON
OFF
S2 1 2 3 4
ON
OFF
Port Description
Out To next device
In To PC or Prospekt 2
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3 SERVICE MODE The software of the Midas is provided with a service mode.
In the service mode it is possible to control all the outputs, mechanical movements and
to require information from all the inputs.
Since the service mode is only to be used by a qualified trained service engineer it is
protected by a code.
To enter the service mode, from the READY screen, press [MENU] followed by the
softkey <SERVICE>. Then enter the service code: 101163.
The service mode is set up in such a way that each function of the unit has got its own
pages.
To enter a required function; press the corresponding softkey.
To enter the Service Mode proceed as follow:
Power up the unit
MIDAS [MENU]
READY (X.XX) OVEN:--°°°°C
TRAY:--°°°°C <WASH> <MAINTENANCE> <SERIAL> <TEMP>
Press: [MENU]
MIDAS [MENU]
READY (X.XX) OVEN:--°°°°C
TRAY:--°°°°C <SERVICE>
Press: <SERVICE>
ENTER SERVICE-CODE, THEN PRESS ENTER
Press: 1 0 1 1 6 3[E]
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After entering the service code the following screen will be shown.
SERVICE MODE [MENU]
<TRAY> <NEEDLE> <TEMP> <SYRINGE>
On the lower line the function of each soft key is displayed.
Representing the different function/assembly in the system.
To change the function of soft key’s press [MENU] button.
SERVICE MODE [MENU]
<INJ VALVE> <EXT IO> <SERIAL> <PIERCE>
Press [MENU] button again for the following page.
SERVICE MODE [MENU]
<LIFE TEST> <RESET LOG>
For a detailed description for each function (sub assembly) check the following
paragraphs.
CAUTION
CAUTION:
Not all the safety precautions which are imbedded in the
normal run mode will function in the service mode.
Meaning that it might be possible, for instance, to rotate
the tray while the needle is down.
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3.1 TRAY
SERVICE MODE
TRAY SEARCH VIAL:XX
SENSORS HOME:X POS:X TYPE:84+3
<START>
Check first if the type of tray which is installed on the autosampler is identical to the
displayed version
SEARCH VIAL : A value can be entered to which the tray will search
Press the soft key START to activate the search.
SENSORS
HOME: X : Indicates the status of the HOME sensor.
This sensor is used to recognize the vial 01 position.
= 0 Sensor is not interrupted by the tray disc.
= 1 Sensor is interrupted by the tray disc.
POS: X : Indicates the status of the POSITION sensor.
This sensor is used to stop the tray at the correct position.
POS: 0
= 0 Sensor is not interrupted by the tray disc
= 1 Sensor is interrupted by the tray disc.
SOFTKEY
<START> : After pressing the softkey <START> the tray will search for the
position entered in the search parameter.
Press <ESCAPE> to return to the main menu of the Service Mode.
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3.2 NEEDLE
The needle page is set up in 3 different pages use [MENU] to scroll through the
different pages.
SERVICE MODE [MENU]
NEEDLE VERTICAL
SENSORS UP:X DOWN:X VIAL:X
<HOME> <DOWN>
SENSORS
UP: X : Indicates the status of the needle up sensor.
This sensor is used to check if the needle arm is completely in the
upper position.
= 0 Needle arm is not completely up.
= 1 Needle arm is completely up.
DOWN: X : Indicates the status of the needle up sensor.
This sensor is used to check if the needle arm is completely down.
= 0 Needle arm is not completely down.
= 1 Needle arm is completely down.
VIAL: X : Indicates the status of the vial sensor.
This sensor is used to check if there is a vial placed in the tray at
the position the Autosampler is searching for.
= 0 Vial is detected by the vial sensor.
= 1 No vial detected by the vial sensor.
SOFTKEYS
<HOME> Moves the needle arm up to its most upper position.
<DOWN> Moves the needle arm down to its most lowest position
NOTE:
It is only possible to move the needle arm down on a legal tray
position which is safe for the needle.
Else ERROR 237 will be displayed
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SERVICE MODE [MENU]
NEEDLE HORIZONTAL
SENSORS UP:X LEFT/RIGHT:X WASH:X
<HOME> <NEXT> <PREVIOUS>
SENSORS
UP: X : Indicates the status of the needle up sensor.
This sensor is used to check if the needle arm is completely in the
upper position.
= 0 Needle arm is not completely up.
= 1 Needle arm is completely up.
LEFT/RIGHT: X Indicates the status of the left/right sensor.
This sensor is used to check if the needle arm is above a correct
position of the tray.
= 0 Needle arm is above a correct position of the tray.
= 1 Needle arm is not above a correct position of the tray.
WASH: X Indicates the status of the wash position sensor.
This sensor is used to check if the needle arm is above the wash
position.
= 0 Needle arm is not above the wash position.
= 1 Needle arm is above the wash position.
SOFTKEYS
<HOME> : Moves the needle arm to the home position above the wash
position.
<NEXT> Moves the needle arm to the next horizontal position
<PREVIOUS> Moves the needle arm to the previous horizontal position.
NOTE:
It is only possible to move the needle arm horizontal if the
needle up sensor = 0
Else ERROR 234 will be the result
SERVICE MODE [MENU]
NEEDLE COMPRESSOR
<ON> <OFF>
SOFTKEYS
<ON> : Turns the compressor ON
<OFF> : Turns the compressor OFF
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3.3 TEMPERATURE CONTROL
OVEN CONTROL: SERVICE MODE
TEMP CONTROL OVEN SETPOINT:XX°C
ACTUAL: XX°C XX COUNTS XXXmV POWER:---%
<ON> <OFF>
SETPOINT: XX°C : The SETPOINT can be changed with the numeric keypad.
ACTUAL: XX°C : Current temperature of oven compartment.
XX COUNTS : Output from the AD converter.
XXX mV : Output voltage from the oven sensor.
POWER: ---% : indicates the amount of power used by the heating element.
SOFTKEYS
<ON> : Turns the oven ON
<OFF> : Turns the oven OFF
COOLING CONTROL (OPTIONAL): SERVICE MODE [MENU]
TEMP CONTROL COOLING SETPOINT:XX°C
ACTUAL: XX°C XX COUNTS XXXmV POWER:---%
<ON> <OFF>
SETPOINT: XX°C : The SETPOINT can be changed with the numeric keypad.
ACTUAL: XX°C : Current temperature of the cooling ring.
XX COUNTS : Output from the AD converter.
(depends on the actual temperature
Power:---% : Indicates the amount of power used by the heating element.
SOFTKEYS
<ON> : Turns the cooling ON
<OFF> : Turns the cooling OFF
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3.4 SYRINGE SERVICE MODE [MENU]
SYRINGE
SENSORS HOME:X ROTATION:X
<HOME> <END>
SENSORS
HOME: X : Indicates the status of the home sensor.
This sensor is used to check if the syringe is at the home position.
= 0 Sensor vane is not in the home sensor.
= 1 Sensor vane is in the home sensor.
ROTATION: X : Indicates the status of the rotation sensor.
This sensor is used to check if the syringe spindle rotates
without obstructions
= 0 Slot of rotation disc is inside sensor
= 1 Rotation disc is inside sensor
SOFTKEYS
<HOME> : Resets the syringe to the home position
<END> : Moves the syringe completely down.
SERVICE MODE [MENU]
SYRINGE VALVE
SENSORS LEFT:X RIGHT:X
<WASH> <NEEDLE> <WASTE>
SENSORS
LEFT: X: Indicates the status of the left syringe valve sensor.
= 0 Slot of rotation plate is inside sensor.
= 1 Rotation plate is inside sensor.
RIGHT: X : Indicates the status of the right syringe valve sensor.
= 0 Slot of rotation plate is inside sensor.
= 1 Rotation plate is inside sensor.
SOFTKEYS
Sensor displays: LEFT
RIGHT
<WASH> : Sets the syringe valve in wash position 0 1
<NEEDLE> : Sets the syringe valve in needle position 0 0
<WASTE> : Sets the syringe valve in waste position 1 0
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3.5 INJECTOR VALVE SERVICE MODE
INJECTOR VALVE
SENSORS LOAD:X INJECT:X
<LOAD> <INJECT>
SENSORS
LOAD: X : Indicates the status of the load position sensor
This sensor is used to detect the position of the
injector valve
= 0 Sensor vane is outside the load sensor
= 1 Sensor vane is inside the load sensor, valve in LOAD
position.
INJECT: X : Indicates the status of the inject position sensor
This sensor is used to detect the position of the
injector valve
= 0 Sensor vane is outside the inject sensor
= 1 Sensor vane is inside the inject sensor; valve is in
the INJECT position.
SOFTKEYS
<LOAD> : Switches the Injector valve to the load position
<INJECT> : Switches the Injector valve to the inject position
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3.6 EXTERNAL I/O
SERVICE MODE [MENU]
EXTERNAL I/O: INPUTS
STOP INP=X FREEZE=X NEXT INJ=X
STOP INP= X : Indicates the status of the stop input
FREEZE= X : Indicates the status of the freeze input
NEXT INJ=X : Indicates the status of the next injection input
IF X = 0 The input is low
IF X = 1 The input is high (active)
SERVICE MODE [MENU]
EXTERNAL I/O: AUXILIARIES AUX:--
<AUX1 ON> <AUX1 OFF> <AUX2 ON> <AUX2 OFF>
AUX:-- : Indicates the status of the auxiliaries
-- : Aux. 1 OFF; Aux. 2 OFF
1- : Aux. 1 ON; Aux. 2 OFF
-2 : Aux. 1 OFF; Aux. 2 ON
12 : Aux. 1 ON; Aux. 2 ON
SOFTKEYS
<AUX1 ON> : Switches the Aux. 1 ON
<AUX1 OFF> : Switches the Aux. 1 OFF
<AUX2 ON> : Switches the Aux. 2 ON
<AUX2 OFF> : Switches the Aux. 2 OFF
SERVICE MODE [MENU]
EXTERNAL I/O: OUTPUTS
<INJ MARK> <ALARM ON> <ALARM OFF>
SOFTKEYS
<INJ MARK> : Switches the inject marker pulse ON
<ALARM ON> : Switches the alarm output ON
<ALARM OFF> : Switches the alarm output OFF
NOTE:
The duration of the inject marker output depends on the
programmed duration in the SYSTEM SETTINGS
24
3.7 SERIAL PORT
SERVICE MODE SERIAL PORT
PROTOCOL: SPARKLINK RS232 TEST: 000
9600 BAUD, 8 DATA, NO PARITY, 1 STOP BIT
<START>
This screen provides only information concerning the serial port such as baud rate,
number of data bits, parity bit and stop bit.
No changes to these settings can be made.
SOFTKEY
It is also possible to check the communication port. Create a connection between pin 2
and 3 on the RS 232 connector.
After this connection is made, press the softkey <START>
If the Communication port is correct, OK will be displayed.
NOTE:
If the communication test is OK but no communication with
other devices is possible, check for a correct setting of the
DEVICE IDENTIFIER.
(System Settings [MENU] <SERIAL> Device Identifier 60-69)
The Spark-link protocol uses the device Identifier 60
25
3.8 PIERCE TEST
The pierce test is a quick and convenient way to check the piercing precision of the
needle in the vials.
In case of a 96 vial tray or an 84+3 vial tray the following sequence will carried out:
The needle arm always starts with vial number 01 and moves to 4&5, 8&9, 12&13,
…..etc.
SERVICE MODE NEEDLE PIERCING POINT TEST
VIAL NUMBER:XX ERRORS:XXX
TRAY:XXX NEEDLE:XXX
The needle piercing point test starts direct after selecting the softkey <PIERCE>
To stop the piercing point test, press the “Start/Stop” button.
VIAL NUMBER : Actual vial number.
ERRORS : Total number of tray and needle errors.
TRAY : Number of tray errors
NEEDLE : Number of needle errors
CAUTION
CAUTION:
The instrument starts the pierce test immediately after
pressing the softkey <PIERCE>
26
3.9 LIFE TEST
With the Life test it is possible to select all or some softkeys to test the functions of the
selected items for a longer period.
The life test will start after selecting the items and pressing the “Start/Stop” button.
For stopping the life test, press the “Start/Stop” button again.
SERVICE MODE LIFE TEST [MENU]
SELECTION:
<TRAY> <NDL-HOR> <NDL-VER> <INJ-VLV>
SERVICE MODE LIFE TEST [MENU]
SELECTION:
<SYRINGE> <SYR-VLV>
SOFTKEYS <TRAY> : Softkey to test the tray drive
<NDL-HOR> : Softkey to test the horizontal needle movement
<NDL-VER> : Softkey to test the vertical needle movement
<INJ-VLV> : Softkey to test the injection valve
<SYRINGE> : Softkey to test the syringe
<SYR-VLV> : Softkey to test the syringe valve
SERVICE MODE LIFE TEST
cycles:0000010 errors:002
TRAY:000 NEEDLE:001 VALVE:001 SYR:000
Example of life test screen with needle and valve unit errors.
cycles : Total number of cycles of the executed life test
errors : Total number of errors of all the programmed devices
TRAY : Number of tray errors
NEEDLE : Number of needle errors
VALVE : Number of valve errors
SYR : Number of syringe errors
ATTENTION:
The software is also counting the number of cycles and the
number of errors during the life test.
27
3.10 RESET LOG COUNTERS
RESET LOG COUNTERS
SELECT LOG COUNTER TO RESET:
<INJ VLV> <SYR-VLV> <SYRINGE>
This function in the service mode is used to clear the LOG COUNTERS. These LOG
COUNTERS are in the normal operation mode read-only.
It is only possible to reset these counters in the Service mode and not in the normal
operation mode.
SOFTKEYS
<INJ VLV> : Resets the counter of the injection valve to zero
<SYR-VLV> : Resets the counter of the syringe valve to zero
<SYRINGE> : Resets the counter of the syringe.
CAUTION
CAUTION:
Reset ONLY a counter when the corresponding part is
replaced.
28
4 DISASSEMBLING
The Midas Autosampler is build up around the mainframe, which is a part of the bottom
plate.
On this mainframe are the different assemblies placed, such as injection valve assembly,
syringe assembly.
This paragraph describes how the different assemblies can be removed, repaired or
replaced.
The adjustments for the assemblies are given in chapter 5.
Tricks and Installation tips are given throughout this whole chapter.
The first section describes how to remove the top cover, this to view the mechanical
parts.
WARNING
WARNING:
Disconnect power before removing covers.
29
4.1 REMOVING THE TOP COVER To get access to the most subassemblies it is necessary to remove the top cover,
therefore proceed as follows:
• Open the Keyboard Display cover
• Remove the Oven cover
• Remove the 4 screws marked F on the front panel
F
F
F
F
• Close the Keyboard/Display cover
• Remove the 6 marked screws R on the Rear side.
R R
R R
R R
• Lift up the Top cover to remove it.
30
4.2 INJECTION VALVE
The Midas can be equipped with the following type of injection valves:
• Valco C2-2006 valve with quick connect mounting
• Valco C2-2346 PEEK valve with quick connect mounting
• Rheodyne 7739 valve with quick connect mounting
• Rheodyne biocompatible 9740 valve with quick connect mounting.
The next sections describe how to exchange the valve and the valve drive assembly.
4.2.1 Replacing the Injection Valve
To remove the valve proceed as follows:
• Disconnect all tubing from the valve.
Only the loop can stay in place.
• Place the needle arm in the front position,
From the Ready menu press:
<MAINTENANCE> <NDL HRZ>.
• Push the levers “A” backwards to release
the valve.
• Pull the valve out of the instrument while
turning the valve counter-clockwise.
To re-insert the valve proceed as follows:
• Hold the valve for the mounting with port 1
position facing up.
• Push the valve into the mounting and turn
the valve clockwise till it clicks in the
fitting.
• Re-connect all tubing to the valve.
• Make sure that the valve is in the INJECT
position. This can be done in the
Maintenance menu.
• Press <MAINTENANCE> <VLV LOAD>
<VLV INJECT>
A
A
31
4.2.2 Replacing the Valve drive assembly
For replacing the valve drive assembly, proceed as follows:
• Remove the injection valve (See section 4.2.1)
• Loosen the 2 screws marked V
• Open the rear panel (See section 4.1)
• Disconnect the valve drive assembly connector J9 of the control board
• Remove the entire valve drive assembly backwards out of the instrument.
See for more detailed information of the valve drive assembly drawing 71.0830.301
32
4.2.3 Maintenance for Valco C2-2006/2346 valve
Cleaning a valve can often be accomplished by flushing all lines with appropriate
solvents.
NOTE:
Do not disassemble the valve unless system malfunction is
definitely isolated to the valve.
Disassembly:
• Use a 9/16 hex driver to remove the socket head screws which secure the cap on the
valve.
• To insure that the sealing surface of the cap is not damaged, rest it on the outer face.
Or, if the tubing is still connected, leave it suspended by the tubing.
• With your fingers or small tool, gently pry the rotor away from the driver.
• Examine the rotor sealing
surface for scratches. If
scratches are visible to the
naked eye, the rotor must be
replaced. If no scratches are
visible, clean all the parts
thoroughly with an appropriate
solvent, taking care that no
surfaces get scratched. (The
most common problem in HPLC
is the formation of buffer
crystals, which are usually
water-soluble) It is not
necessary to dry the rotor.
Reassembly:
• Replace the rotor in the driver, making sure that the rotor sealing surface with its
engraved flow passages is facing out. The pattern is asymmetrical to prevent
improper placement.
• Replace the cap. Insert the two socket head screws and tighten them gently until both
are snug. Do not over-tighten them - the screws simply hold the assembly together
and do not affect sealing force, which is automatically set as the screws close the cap
against the valve body.
• Test the valve by pressurising the system. If it doesn’t hold pressure, the valve should
be returned to Valco for repair.
Stator
screws
Stator
Rotor
seal
Drivershaft
Valve
body
33
4.2.4 Maintenance on the Rheodyne Model 7739 valve
With normal use the valve will give many tens of thousands of cycles without trouble.
The main cause of early failure, which is seen as a leak in the valve, is abrasive particles
in the sample and/or mobile phase which can scratch the rotor seal.
Following is the procedure for changing the rotor seal:
• Remove the three stator screws with the 9/16” hex key.
• Remove the stator and stator ring from the valve body.
• Pull the rotor seal off the pins.
• Install the new rotor seal. The three pins
on the shaft assembly fit into the mating
holes in the rotor seal only one way.
Mount the seal with the grooves facing the
stator.
• Replace the stator ring so that the body
locating pin in the stator ring enters the
mating hole in the body.
• Mount the stator on the valve so that the
stator locating pin in the stator ring enters
the mating hole in the stator.
• Replace the three stator screws. Tighten
each an equal amount until the screws are
tight.
Shaft Assembly
Body
Rotor Pins
Isolation Seal
Rotor Seal
Stator Ring
Stator
Location Pin
Stator
Stator Screws
Exploded view of Model 7739.
34
4.2.5 Maintenance on the Rheodyne Model 9740 valve
CAUTION
Use only plastic ferrules in the stator ports. Metal ferrules
can cause irreparable damage to the plastic stator.
With normal use the valve will give many tens of thousands of cycles without trouble.
The main cause of early failure, which is seen as a leak in the valve, is abrasive particles
in the sample and/or mobile phase which can scratch the rotor seal.
Following is the procedure for changing the rotor seal, stator face assembly.
• Remove the three stator screws with a 9/64 inch hex key.
• Remove the stator, stator face assembly and stator ring from the valve body.
• Pull the rotor seal off the pins.
• Mount the new rotor seal. The three pins on the
shaft assembly fit into the mating holes in the
rotor seal only one way. Mount the seal with
the grooves facing the stator.
• Replace the stator ring so that the body
locating pin in the stator ring enters the mating
hole in the body.
• Put the new stator face assembly on the stator.
The three pins on the assembly fit the mating
holes in the stator only one way.
• Mount the stator and stator face assembly on
the valve so the stator locating pin in the stator
ring enters the mating hole in the stator.
• Replace the three stator screws. Tighten each
an equal amount until the screws are tight.
Body
Shaft Assembly
Isolation Seal
Rotor Seal
Body Location Pin
Stator Ring
Stator Location Pin
Stator Face
Assembly
Stator
Stator Support
Ring
Stator Screws (3)
Exploded view of Model 9740.
35
4.3 DISPENSER
4.3.1 Removing the dispenser
For removing of the dispenser proceed as follows:
• Remove the top cover (See section 4.1)
• Remove the waste, wash and buffertubing.
• Remove the flatcable of the Keyboard/Display
• Remove the dispenser connectors J2, J3, J4, J5, J6 and J7 from the Control PCB
• Remove the connector of the Needle down sensor which is located near the needle
arm (See drawing)
D
D
D
D
• Remove the 4 marked screws D
Move the top of the dispenser downwards, until the entire dispenser is horizontal, and lift
the dispenser up.
For checking the correct function of the dispenser, re-connect the Connectors J2, J3, J4,
J5, J6 and J7
For more detailed information see section 3.4 (Service Mode: SYRINGE)
36
4.3.2 Dispenser valve
For replacing the dispenser valve proceed as follows:
• Remove the dispenser assembly out of the instrument (See section 4.3)
• Turn the syringe spindle counter clock wise, and remove the syringe.
• Remove the 2 screws from the top cover of the dispenser
• Remove the top cover of the dispenser by lifting it up
• Release belt tension by loosening the stepper motor mounting screws 1 turn and
sliding the motor to the valve side.
• Remove the sensor disc
• Loosen 1.5mm hex screw from the valve pulley and lift the valve pulley up
• Loosen the valve nut and remove the valve downwards
Replace the syringe valve and re-assembly the entire dispenser.
Since the sensor disk takes care for the correct position of the valve, there is no initial
position for replacing the valve.
NOTE:
After replacing the syringe valve the LOG COUNTERS for the
syringe valve should be RESET.
From Ready Mode: [MENU] <SERVICE> 010466 [MENU]
[MENU] <RESET LOG> <SYR VLV>
37
5 ADJUSTMENTS
5.1 NEEDLE HEIGHT ADJUSTMENT
To adjust the needle height of the autosampler proceed as follows:
• Power up the autosampler in the Service Mode.
• Place an uncapped vial with the highest possible bottom in the tray.
Needle height
adjustment screw
Needle body
• Loosen the needle height adjustment screw.
• Set the Needle body as high as possible.
• Tighten the adjustment screw.
• Move the needle arm downwards using the Service Mode (See section 3.2)
• Loosen the needle height adjustment screw
• Move the needle body manually downwards until the tip of the needle is approximately
1 mm above the bottom of the vial.
• Tighten the needle height adjustment screw
CAUTION
CAUTION:
Make sure the vial type used for adjustment of the needle height, is the
vial type with the highest bottom. See drawing above for examples of vial
types with different bottom heights.
38
5.2 SYRINGE HOME ADJUSTMENT
To adjust the home position of the syringe, proceed as follows:
• Check if the syringe is installed correctly. Completely tightened in the luerlock, or for
syringes without a luerlock, complete tightened in the syringe valve.
• Go to Service Mode concerning Syringe (See section 3.4)
• Loosen the 2 screws that secure the home vane sensor.
• Slide the home vane upwards as far as possible.
• Press the Softkey “HOME”.
• Slide the sensor vane downwards, and
press the Softkey “HOME”.
• Repeat these two actions until the
distance between the tip of the plunger
and the end of the syringe is
approximately 2 mm.
• Tighten the two screws of the sensor
vane.
±2mm
39
5.3 PENETRATION POINT ADJUSTMENT
The penetration point of the Midas can be adjusted in two different positions. The needle
should be centred in the vial and therefore it is adjustable into the left-right position as
well as into the front- back position.
Examples of wrong penetration points:
Needs: Left-Right
Adjustment
Needs: Front-Back
Adjustment
Needs: Front-Back and
Left -Right
Adjustment
Needs: Left-Right and
Front-Back
Adjustment
5.3.1 Left Right adjustment
For left right adjustment of the penetration point into the vial proceed as follows:
• Remove the sample needle.
• Remove the Top Cover (See section 4.1)
• Go to Service Mode (See section 3.2)
• Set the needle arm above the wash position. (NEEDLE HORIZONTAL <HOME>)
• Move the needle arm downwards (NEEDLE VERTICAL <DOWN>)
• Loosen the 2 marked screws P ½ turn.
(Use a screwdriver with a long shaft for easy access to the screws)
• Rotate the entire needle unit in such a way that the air needle is centred in the wash
position.
(Use the stepper motor as a grip for rotating the needle unit)
• Fasten the 2 screws marked P
• Check the centre position on several vials and on the wash position.
• Re-install the sample needle.
40
5.3.2 Front Back adjustment
For changing the stop position of the tray, proceed as follows:
• Remove the entire tray disk
• Loosen the 3 screws marked Q. ½ Turn.
• Turning the Tray stop adjustment screw clockwise will result in an earlier stop
position of the tray.
• Turning the Tray stop adjustment screw counter clockwise will result in a later stop
position of the tray.
• Fasten the 3 screws marked Q
• Replace the tray disk and check the penetration point on several positions.
NOTE:
For quick and easy testing of the penetration point, use the
Piercing mode of the Service Mode
(See section 3.8)
41
5.4 VIAL STRIPPER ADJUSTMENT
The vial stripper of the Midas protects the vials for lifting up out of the tray, during the
needle up movement of the needle arm.
For installing or removing the tray-disk or the cooling cover, it is necessary to push the
vial stripper into the direction of the Injection valve. The spring behind the vial stripper
takes care for resetting the stripper to the initial position.
If the penetration has been re-adjusted in the left-right direction it is sometimes
necessary to re-adjust also the vial stripper.
The vial stripper can be adjusted by turning the marked setscrew
42
5.5 VIAL SENSOR ADJUSTMENT
The Midas is standard equipped with a vial sensor. This vial sensor checks for sample
vials in the tray during the needle down movement of the needle arm.
The vial sensor also controls the vertical stop position of the needle arm.
In case of a programmed 24 Large sample vial tray or using 2.5 ml vials, the needle arm
stops direct when the air needle has punctured the septa.
The air needle will be in this situation not in contact with the sample in the vial, but after
aspirating 50% of the total vial volume, the needle arm moves further downwards.
This sequence is to avoid sample between the air needle and the liquid needle.
The distance between the vial
sensor and the top of the tray
should be in the down position of
the needle arm approximately 1.5
mm.
• This can be adjusted by
loosening the two small
screws on the top of the vials
sensor indicated V.
• Re-adjust the height and
tighten the screws.
For vial sensor replacement, proceed as follows:
• Remove the top cover (See section 4.1)
• Remove the needle and needle tubing from the needle arm.
• Move the needle arm down (use the Service Mode)
• Loosen the hex screw
marked S
• Lift up the entire needle
arm, and slight it
backwards out of the unit.
• Remove the marked
screws T, and replace the
entire vial sensor assembly
including wiring and air
supply tubing.
1.5mm
V
V
T
T
T
Vial Sensor S
43
6 FIRMWARE REPLACEMENT
The firmware of the Midas is placed in an EPROM which is located on the CPU Board.
ATTENTION:
The EPROM is highly sensitive for Electro Static
Discharging.
Observe precautions for handling Electrostatic discharge
sensitive devices.
For replacement of this EPROM proceed as follows:
• Make a notice of all the programmed
Methods, Series and System Settings
• Turn mains power off
• Remove the 4 marked screws A
• Open the rear panel
It is now possible to remove the old
EPROM and place the new EPROM
Make sure all pins of the EPROM are
placed in the IC-socket.
• Check all settings after placing a
new EPROM
EPROM
NOTE:
The little notch on the top of the EPROM should be facing the
same way as the notch on the IC-socket.
A A
A A
44
7 TROUBLE SHOOTING
7.1 ERROR CODES
The Midas is equipped with a sophisticated fault system. Every malfunction will be
reported as an Error code.
In the list below, each error code is described and also the action to solve the mentioned
error is given.
Complete this list yourself during your experience with the Midas and use it as a help
guide for quicker solutions and decrease the time to locate the fault.
7.1.1 INJECTION VALVE UNIT
ERROR CAUSE ACTION
211 Injection valve is not in a valid
position. Output of both sensors is high (1)
• Check the output of the optical
sensors in the Service Mode.
• ………………………………………..
212 The injection valve did not
switch within 1.5 seconds.
• Check for any loose parts
• Check the stepper motor
• Check belt tension
• Check the optical sensors
• …………………………………………
213 The switching time of the
injection valve exceeds 500
msec
• Check rotor seal and stator (torque to
turn the valve might be increased
dramatically)
• …………………………………………
45
7.1.2 SYRINGE DISPENSER UNIT
ERROR CAUSE ACTION
221 The syringe valve did not switch.
(Status of the activated
sensor(s) is not changed)
• Check the two sensors in the Service
Mode (turn valve by hand using the valve sensor disc as a grip)
• Check the stepper motor
• Check the belt tension
• Check for any loose parts
• …………………………………………
222 The syringe did not reach the
home position within time.
(Spindle rotates correctly)
• Check screw thread in transport block
assy, if worn out replace transport block
• …………………………………………
223 The syringe spindle did not make
the correct number of rotations.
(The number of pulses from the
rotation sensor does not
correspond with the number of steps send to the stepper motor)
• Remove syringe and retry without
• If OK check flow path (buffertubing
inj. valve and needle for obstructions or over tightened ferrule)
• If error 223 still occurs without
syringe check:
• Optical rotation sensor
• Stepper motor
• Belt tension
• Spindle for too high torque
• Broken pulley
• …………………………………………
224 The spindle does not rotate.
(No rotation pulse found)
• Remove syringe and retry without
• If OK check flow path (buffertubing
inj. valve and needle for obstructions
or over tightened ferrule)
• If error 224 still occurs without syringe check:
• Optical rotation sensor
• Stepper motor
• Belt tension
• Spindle for too high torque
• Broken pulley
• …………………………………………
225 The syringe valve did not find a
valid position.
(Motor is turning but no stop position is found)
• Check sensors in Service Mode
• Check for any loose parts; pulley, belt
tension
• …………………………………………
46
Checkpoints for obstructions in flow path of the Midas Autosampler
To locate an obstruction in the flow path, perform a wash-routine and check carefully the
flow path.
For more detailed information see section 7.2
Syringe valve
Buffer tubing
Injection valve
Sample needle
47
7.1.3 NEEDLE UNIT
ERROR CAUSE ACTION
230 The sample needle arm did not
reach or leave the home position
(vertical).
(Status of sensors does not change)
• Check home sensor (on PCB)
• Check movement in Service Mode of Linear stepper motor
• Check for any mechanical obstructions
(bent needle, tubing behind loop …)
• …………………………………………
231 The sample needle arm is in an
invalid horizontal position while moving down.
• Check for any loose parts
• Check bearing of the needle arm
• Check for a bent guiding shaft
• …………………………………………
232 The sample needle arm did not
reach its destination within a
certain time (horizontal).
• Check Needle left-right sensor
• Check for mechanical obstructions
• Check for any loose part
• …………………………………………
233 Too many or not enough steps
needed to reach destination of horizontal needle movement.
• Check for any loose part
• Check stepper motor horizontal drive
• …………………………………………
234 Sample needle arm not in
vertical home position while moving horizontally.
• Check in Service Mode if light-beam of
vertical home sensor is changing during a horizontal movement
• …………………………………………
235 The sample needle arm is at an
invalid horizontal position
• See error 233
• …………………………………………
237 The sample tray is not at a valid
position while moving the sample needle arm down.
• Check if sample tray is correct placed
on the tray axle
• Check needles on bending
(Tray can be moved by a bent needle)
• …………………………………………
239 Vial sensor sticks.
(Status of the vial sensor is still 1)
• Check vial sensor in Service Mode
(1=light-beam interrupted)
• Check for any spilled liquid on sensor, axles or springs
• …………………………………………
48
Top view of the Needle unit without the needle sensor PCB.
Needle Left-
Right sensor
Needle Down
sensor
Vial sensor
The Needle sensor PCB with the Needle Wash Sensor and the Needle Up Sensor.
Needle Wash
Sensor
Needle Up
Sensor
49
7.1.4 TRAY UNIT
ERROR CAUSE ACTION
251 Incorrect tray rotation
(During tray rotation, status of
the stop sensor remains the same)
• Check tray stop sensor in Service
Mode
• Check correct placing of the sample tray disk on the tray axle
• …………………………………………
252 No sample tray positioned in the
Midas.
• Check correct placing of the sample
tray disk on the tray axle
• Check stop sensor and tray home
sensor
• …………………………………………
253 The sample needle arm is not in
the home position while rotating
the tray.
• Check status of the vertical home
sensor needle arm in Service Mode
while rotating the tray manually
• ………………………………………….
50
7.1.5 VIALS
ERROR CAUSE ACTION
260 Missing vial.
(Only available when Skip
Missing Vial is set to NO in the
System Settings
• Check if programmed range of vials is
placed in tray disk
• Check vial sensor
• ……………………………………….
262 Missing transport vial.
(Only available when Skip
Missing Vial is set to No in the
System Settings
• Check if transport vials are placed in tray disk
• Check vial sensor
• ……………………………………….
264 Missing vial for reagent A • Check if reagent vial A is placed in tray disk
• Check vial sensor
• ……………………………………….
265 Missing vial for reagent B • Check if reagent B is placed in tray
disk
• Check vial sensor
• ………………………………………..
268 Missing destination vial. • Check if programmed range of
destination vials are placed in tray
disk
• Check vial sensor
• ………………………………………..
269 Not enough transport liquid
available due to missing transport vials.
Check if programmed range of vials
using µl pick-up method not exceeds
maximum vial volume of the transport
vial(s) See for calculation the Users
Manual
270 Not enough reagent A available. Check if programmed volume not
exceeds the volume of the reagent A vial.
See for calculation the Users Manual
271 Not enough reagent B available. Refer to Error 270
7.1.6 ELECTRONICS
ERROR CAUSE ACTION
275 Error occurred during
initialisation, the Midas can not start.
• An essential part is not properly
working and the Midas can not execute the programmed method
Turn mains power off, power up the unit
again and check for other error codes for
more details
51
7.2 ANALYTICAL
In cases of analytical problems the best thing to start with is to determine, if the cause
for the problem is in the Autosampler, or in the rest of the system.
In order to do this, replace the Autosampler by a manual injector and do some manual
Full loop injections.
If the results are fine the fault has to be found in the Autosampler, if not the HPLC
system should be checked.
Syringe Valve
Syringe
Buffer Tubing
Injection Valve
Needle arm
Air Needle
Injection Needle
NOTE:
In the diagrams on the next pages it is assumed that the unit
is working without Errors.
Please keep in mind that analytical problems also might be
caused by external influences, like temperature and or light
sensitive samples. For this reason it is important to be sure the
application was running without problems before and nothing
has been changed.
52
Start
manual
wash
Solvent flowing
out of inj. portCheck needle
Disconnect
Buffer tubing
from valve
Start
manual
wash
Solvent out of
open end
Check rotor
seal
Blockage in
Flow Path
Disconnect
needle from
Valve
NO
INJECTION
Disconnect
Buffer tubing
from Syringe
valve
Start
manual
wash
Solvent out of
syringe valve
Check
buffer
tubing
Check for over tightened
connections in the entire
Flow Path &
Check the syringe valve
Leakage inside
Injection Valve
Disconnect the needle tubing
and the buffer tubing.
Connect port 1 to an HPLC pump
Block port 6.
Start the pump at a low flow
Observe ports
3 and 4 for leakage
Check rotor
seal
Recheck with manual valve
Yes
Yes
No
Yes
Yes
No
No
No
53
BAD
REPRODUCIBILITY
Air in Flow Path Perform a manual wash
Leaking Syringe
Leaking Syringe Valve
Rotor seal worn out
Dead volumes in
tubing connections
Replace plunger tip or Syringe
Replace Valve
Replace seal.
Check Stator
Redo connections with new
Ferrules and nuts
Air in Syringe Remove Syringe and fill
manually with wash solvent
54
8 NEEDLE
The Midas is standard equipped with a stainless steel needle pair.
The internal diameter of injection needle as well as the tefzel tubing from needle to valve
is 0.25 mm.
The injection needle is only available as a complete subassembly including nuts and
ferrules.
The nuts and ferrules are hand tight fittings and fits into the Rheodyne valve and the
Valco valve.
The air needle is supplied including a seal to avoid leaking of the air supply.
For samples which will react or stick to stainless steel, a coated needle is available on
which the inner side as the outer side is coated
For more viscose samples a large bore sample needle is available with an ID of 0.5mm.
Install also a large bore air needle when using a large bore sample needle.
8.1 NEEDLE CONNECTIONS
Number Description Part number
1 Finger tight ferrule PEEK
2 PEEK ferrule
3 Tefzel tubing L=150 mm (drilled up)
4 Nut
5 Teflon ferrule
6 Conical ring
7 Stainless Steel Sample Needle 830
8 Part of Silicon tubing
Needle assy: 0830.303
9 Needle body 0042.793
10 Air needle 830 (incl. Seal) 0830.718
11 Vial feeler assy 0830.765
12 Hex screw (for needle height adjustment) 6450.030
13 Tygon tubing 7100.682
55
9 PELTIER COOLING OPTION
Thermo-electric sample cooling is available on the Midas as a fully integrated option.
No external device is required and the efficient cooling concept does not restrict access to
the sample tray during operation.
The sample vials are temperature controlled by using two Peltier elements.
The Peltier elements are mounted between a cooling ring and two heat sinks.
Since the Peltier elements are working with a cooled side and heated side, the two fans
are used for a forced air cooling of the heat sinks
The programmable range of the cooling option is from 4°C till 15°C, and the cooling
capacity is 20°C below T ambient with a max. of 60% relative humidity and a Maximum
ambient temperature of 30°C
See for spare part numbers and more detailed information drawing 71.0830.840 in this
Manual.
56
9.1 PELTIER ELEMENT REPLACEMENT
In case of malfunction of the Cooling option proceed as follows:
• Turn OFF the mains power of the Midas.
• Open the rear-panel and remove the connector J1
• Connect a resistor meter to Connector J1. The value should be below 100 Ω
If NOT: One of the Peltier elements is defective. (It is advisable to replace both
Peltier elements if one of them is defective.)
• Remove the tray disk.
• Mark before removing the stop
sensor disk, the position of the disk
with respect to the bottom frame
with a pencil
• Remove the 4 screws of the cooling
ring two by two.
• Remove the temp. sensor
assembly from the cooling ring.
• Lift up the cooling ring carefully.
• Cut the wires of the defective
Peltier elements
• Remove the bottom plate of the
Midas.
• Pull out the heat sinks and the
Peltier elements
• Install the new Peltier elements
including the wiring and the heat
sinks. Add some new thermal joint
compound (Apply thin !!) on both
sides of the Peltier elements.
• Re-install the bottom plate.
• Solder the wires of the Peltier
elements to the existing wires and
isolate them with shrink tubing.
• Re-install the cooling ring and
connecting plates and tighten the
screws two by two.
• Re-install the temp. sensor
assembly, the stop sensor plate
and the tray-disk.
• Re-connect connector J1 and close
the rear-panel.
• Turn ON the mains power from the
Midas and check the cooling option for proper functioning.
CAUTION
CAUTION:
Peltier elements are fragile; therefore take care during
replacing the elements.
• Do not bend the two solder connections of the Peltier
elements.
• Do not over-tighten the screws of the cooling ring and
tighten them two by two.
57
10 LIST OF ACCESSORIES
Part Number Description
0042.565 Male nut M6
0042.793 Needle holder
0830.811 Inject marker cable
0830.711 Serum air needle (for use in combination with serum sample needle)
0788.711 PREP air needle (for use in PREP option only)
0830.718 Standard air needle, including seal
0830.303 Sample needle MIDAS (including tubing nuts & ferrules)
0830.304 Serum sample needle MIDAS (including tubing nuts & ferrules)
0830.318 BIO-Inert Silc sample needle MIDAS (including tubing nuts & ferrules)
0830.835 Large Sample Volume kit MIDAS (incl. serum needles, 500 µl loop 1000
µl syringe, 2000 µl buffertubing and 24 position 10 ml tray-disk)
0830.836 PREP option field installable (incl. prep air needle, serum sample
needle, 10.000 µl loop, 2500 µl syringe 2000 µl buffertubing, PREP
injection valve and 24 position 10ml tray-disk)
0830.316 Large Capacity option 96 vial positions
0900.710 Buffer tubing 500 µl
0900.711 Buffer tubing 2000 µl
0900.712 Syringe waste tubing
0830.718 Syringe wash tubing
2140.160 Luer lock connector syringe valve
0830.731 7739 Rheodyne inj. Valve Stainless Steel version incl. bayonet pins.
0830.732 9740 Rheodyne inj. Valve PEEK version incl. bayonet pins
0830.733 Valco injection valve Stainless Steel C2-2006 SPHMI incl. bayonet pins
0830.734 Valco injection valve PEEK C2-2346 SPHMI incl. bayonet pins
0830.736 Valco PREP injection valve C2-3006 SPHMI incl. bayonet pins
3796.083 Valco fingertight nut PEEK
3796.084 Valco ferrule PEEK
3796.046 Valco 5 µl Loop Stainless Steel
3796.029 Valco 20 µl loop Stainless Steel
3796.086 Valco 100 µl loop Stainless Steel
3796.030 Valco 200 µl loop Stainless Steel
3796.031 Valco 500 µl loop Stainless Steel
3796.094 Valco 10.000 µl loop Stainless Steel
3796.088 Valco 20µl loop PEEK
3796.085 Valco 100 µl loop PEEK
3796.043 Valco rotor seal for C2-2006
3796.044 Valco Stator for C2-2006
3796.048 Valco PEEK rotor seal for C2-2346
3796.087 Valco PEEK Stator for C2-2346
3796.110 Valco rotor seal for C2-3006
3796.111 Valco Stator for C2-3006
3796.091 Rheodyne stator for 7739 injection valve
3796.092 Rheodyne VESPEL rotor seal
3796.093 Rheodyne TEFZEL rotor seal
3796.095 Rheodyne PEEK stator for 9740 injection valve
3796.096 Rheodyne stator face assy for 9740 injection valve
3796.097 Rheodyne PEEK rotor seal
58
Part Number Description
3796.035 Rheodyne loop 5 µl Stainless Steel
3796.009 Rheodyne loop 10 µl Stainless Steel
3796.010 Rheodyne loop 20 µl Stainless Steel
3796.011 Rheodyne loop 50 µl Stainless Steel
3796.012 Rheodyne loop 100 µl Stainless Steel
3796.013 Rheodyne loop 200 µl Stainless Steel
3796.014 Rheodyne loop 500 µl Stainless Steel
3796.015 Rheodyne loop 1000 µl Stainless Steel
3796.076 Rheodyne PEEK loop 20 µl
3796.016 Rheodyne PEEK loop 100 µl
0700.001 Teflon ferrule 1/16″ (pck of 10)
0700.008 Rheodyne Rhe-Flex ferrule (pck of 10)
0700.009 Rheodyne Rhe-Flex nut (pck of 10)
0700.010 Flanged tubing fitting 1/8″ (pck of 5)
0700.011 Flanged tubing fitting 1/16″ (pck of 5)
4340.025 Wash solvent bottle 250 ml
4400.000 Syringe 1000 µl
4400.250 Syringe 250 µl
4400.255 Syringe 2500 µl
0900.742 Plunger replacement tip 250 µl (pck of 10)
0900.750 10 ml vials (pck of 125)
0900.751 Crimp cap for 10 ml vials (pck of 125)
0900.752 Septa for 10 ml vials (pck of 125)
3760.411 cap crimper for 20 mm caps (10 ml vials)
3760.403 cap crimper for 11 mm caps (1.8 ml vials)
0700.019 Plunger replacement kit 1000 µl (pck of 10)
0830.728 Bottle holder for wash and waste bottles of 250ml
0830.790 Shipping box assembly
59
11 TEST PROCEDURE
The Midas is factory tested for reproducibility, carry over and mixing according the
following test procedure.
Analytical parameters:
Pump: Flow:
Eluent:
1.5 ml/min
distilled water
Detector: Wave
length:
254 nm
Sample: Uracil in distilled water (50 ppm)
Relative standard deviation (RSD%)
The formula’s necessary for calculating the Relative Standard Deviation (RSD%) are
printed below:
( )
%100%
1
1
2
1
×=
−
−=
=
−
−
∑
∑
areaPeakRSD
n
areaPeakareaPeak
n
areaPeakareaPeak
n
n
σ
σ
60
Reproducibility and carry over test.
Seven vials are placed in the Midas tray, vial 1 and vials 3 till 7 are filled with sample
(Uracil 50 ppm) and vial 2 is filled with eluent.
The wash solvent bottle is filled with 80% H2O / 20% Iso-propanol
The vials are run with the following method:
Injection
Injection mode: Partial loopfill
Flush volume: 30 µl
No of inj./vial: 3
Injection volume: 10 µl
Analysis time: 0:01:00
Wash
Wash between: None
An example chromatogram of the reproducibility test is printed below.
From the integration results the Relative Standard
Deviation (RSD%) and the carry over can be calculated.
For this example the results are:
RSD%= 0.25%
Carry over < 0.5%
Peak
number
Area
1 206342
2 204773
3 205425
4 -
5 -
6 -
7 205203
8 205566
9 205568
10 206156
11 206174
12 205956
13 206165
14 205765
14 205960
16 206296
17 205617
18 205619
19 205648
20 206141
21 207070
61
Mix test:
For the mix test one sample vial (50 ppm Uracil), one empty vial and the Reagent-A vial,
filled with eluent, are placed in the Midas tray. A 1:10 dilution of the sample will be made
in the empty destination vial. After the dilution from both vials (sample and destination)
10 µl will be injected.
The wash solvent bottle is filled with 80% H2O / 20 % Iso-propanol.
The vials are run with the following methods:
Method 1:
Injection
Injection mode: Partial loopfill
Flush volume: 30 µl
No of inj./vial: 3
Injection volume: 10 µl
Analysis time: 0:01:00
Wash
Wash between: None
Mix
1. ADD 180 µl REAG-A to DESTINATION
2. ADD 180 µl REAG-A to DESTINATION
3. ADD 40 µl SAMPLE to DESTINATION
4. MIX 3 times with 250 µl
5. END OF MIX METHOD
Method 2:
Injection
Injection mode: Partial loopfill
Flush volume: 30 µl
No of inj./vial: 3
Injection volume: 10 µl
Analysis time: 0:01:00
Wash
Wash between: None
Program the following Series:
Series 1 Series 2
Method: 1 Method: 2
First vial: 01 First vial: 01
Last vial: 01 Last vial: 01
Destination vial: 02
62
An example chromatogram of the mixing test is printed below.
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0 1 2 3 4 5 6 7 8 9 10
Time
From the integration results the Relative Standard Deviation (RSD%) for the two
vials can be calculated.
For this example the results are:
RSD% (vial 1, 1:10 dilution) = 0.37%
RSD% (vial 2, sample) = 0.15%
1:10 dilution = 1 : 10.13
Peak
number
Area
1 38802
2 38968
3 39088
4 395258
5 394090
6 394471
63
Exploded view drawings and schematics
64
0830.302 Valve drive assembly parts list
0830.302 Valve drive assembly
Component Description Quantity
0043.257 Sleeve bearing 1
0043.258 Bearing axle 1
0043.559 Sensor motorplate 1
0043.560 Valve plate 1
0043.561 Connecting axle 1
0043.562 Valve lever 1
0043.563 Sensor flag 1
0043.564 Column 0830 1
0043.565 Locking plate 1
0043.566 Valve spring 2
0043.567 Motor lever 1
0043.701 Supportblock 830 1
0043.717 Bayonet spring 1
0830.805 Valve wiring set 1
2099.041 Nylon bearing 5mm 1
2291.244 Distance bush M4x7x35 2
2562.349 Optical sensor TLP 1201A 2
0830.737 Repl. steppermotor 1.05A incl valve wiring 1
6405.051 Bolt M5x10 SS 1
65
Exploded view of Valve drive assembly
66
0900.302 Syringe Dispenser assembly parts list 0900.302 Syringe dispenser assembly
Component Description Quantity
0043.243 Valve sensor disc 1
0043.244 Guiding block top 1
0043.245 Sensor bracket 1
0043.246 Sensor protector 1
0043.247 Bottom plate dispenser 1
0043.248 U-profile dispenser 1
0043.249 Top plate dispenser 1
0043.396 Pulley 36 MXL 050 1
0043.405 Sensor disc 1
0043.789 Valve bush 1
0043.791 Plunger holder 1
0043.949 Guiding block 1
0043.950 Interuport 1
0900.763 Spindle replacement assembly 1
0045.020 Plunger screw 1
0045.022 Syringe clamp spring 1
0900.807 Wiring set dispenser 1
2033.076 Geared belt 760 MXL 025 1
2033.536 Geared belt PU 520 MXL 025 1
2034.003 Pulley PLA 18 MXL 025 1
2034.008 Pulley 18DF MXL Alu 2
2100.002 Ball bearing 2
2140.151 Syringe valve 1
2179.530 Spring 1
2562.349 Opto interruptor 2
0900.746 Steppermotor 1.05A 1
0900.741 Steppermotor 2.2A 1
6050.030 Setscrew M3x4 1
6406.014 Philips ss countersink screw M3x6 2
6406.015 Philips ss countersink screw M3x8 2
6412.054 Hex screw M4x10 3
6416.014 Philips ss screw M3x6 2
67
Exploded view of Syringe dispenser assembly
68
0830.305 Mains inlet assy 0830 parts list
0830.305 Mains inlet assembly 0830
Component Description Quantity
0043.673 Mains inlet frame 1
0051.065 Grounding label 1
0830.804 Cable bridge rectifier-mainboard 1
2524.819 Mains inlet/fuse holder/power switch 1
2563.232 Bridge rectifier 1
7500.015 Litze cable 170mm 1
9001.416 Philips screw M4x16 1
0725.620 MultiLink RS 232 interface PCB 1
0043.745 MultiLink cover plate 1
2147.154 Fan grid 1 only for cooling
2682.006 Fan 1 only for cooling
69
Exploded view of mains inlet assy 0830
70
0830.307 Needle drive assy 0830 parts list
0830.307 Needle drive assembly 0830
Component Description Quantity
0043.682 Horizontal movement bush 1
0043.693 Needle drive frame 1
0043.707 Sensor plate 1
0043.722 Stripper return spring 1
0043.730 Distance bush needle arm 2
0043.731 needle sensor bracket 1
0043.732 Bearing bush needle arm 1
0043.740 Guiging bullet needle arm 1
0043.752 Sensor connecting plate 1
0830.602 Tray/Needle sensor PCB 1
0830.807 Flatcable sensor PCB-Mainboard 1
0830.812 Cable set tray/needle-needle L/R 1
0830.813 Cable set tra/needle-needle down 1
2099.041 Nylon bearing 5mm 1
2562.349 Optical interuptor 2
0900.741 Steppermotor 2.2A 1
0830.741 Vertical needle movement motor assembly 1
71
Exploded view of needle drive assy
72
0830.308 Needle arm assy 0830 parts list
0830.308 Needle drive assembly 0830
Component Description Quantity
0042.793 Needle holder 1
0043.686 Needle arm 0830 1
0830.718 Air needle including seal 1
0043.711 Vial sensor block with flag 1
0043.715 U-shaped vial sensor guiding axles 1
0043.716 Vial sensor block PEEK 1
0043.729 Needle arm sensor flag 1
0043.735 Vial sensor spring 2
0830.768 Opto assembly needle arm 1
7100.682 Tygon tubing 0.46M
2050.002 T-connector 1
6215.901 screw M1.6x4 2
6416.014 Philips screw SS M3x6 4
6450.030 Set screw SS M3x4 1
6451.002 Set screw with Nylon tap M4x10.5 1
6759.102 Cable clip 1
73
Exploded view of Needle arm assy 0830
74
0830.310 Oven assy 0830 parts list
0830.310 Oven assembly 0830
Component Description Quantity
0043.017 SS oven gauze 1
0830.730 Oven bucket incl. heater 1
0810.735 Temp sensor assembly 1
0043.708 Oven door cover 1
0043.017 Oven door insulation 1
2147.149 Oven door lock 1
2291.239 Nylon distance bush 6x3x10 4
7500.010 Litze cable 1
75
Exploded view of Oven assy 0830
76
0830.320 Keyboard cover assy 0830 parts list
0830.320 Keyboard cover 0830
Component Description Quantity
0043.110 shim plate for hinge 2
0043.679 Keybaord cover 0830 1
0043.684 Hinge plate 0830 1
0043.685 Protection plate 0830 1
0043.692 Flatpanel keyboard "Spark version" 1
0043.761 Foam for display protection 1
0050.084 Frontglass "Spark Midas" 1
0830.603 Keyboard PCB 1
0830.802 Flatcables keyboard/display - keyboard PCB 1
0830.815 Flatcable keyboard PCB - mainboard 1
2147.151 Hinge plate 0830 2
0830.725 Replacement display assembly 1
6759.030 Flatcable clamp 1
77
Exploded view of keyboard cover assy 0830
78
0830.401 Bottom frame assy 0830 parts list
0830.401 Bottom frame assembly 0830
Component Description Quantity
0830.735 Mainframe including tray bearing 1
0043.672 Bottomplate 0830 1
0043.678 Tray motor plate 1
0043.683 Tray shaft 0830 1
0043.694 Sensor and adjustment plate 1
0043.737 Wash outlet 1
0830.332 Waste tubing assembly bottom frame 0830 1
0043.739 Guiding tube needle vertical movement 1
0043.979 Support bracket for ringcorn transformer 1
0830.808 Cable tray/needle - home position 1
2033.120 Belt 1200 MXL 025 1
0900.743 Rubber feet (pck/6) 1
2034.006 Pulley PLA 20 MXL 025 1
2034.007 Pulley PLB 120 MXL 025 1
2050.001 T-connector waste tubing 2
2179.542 Spring 1
2300.010 Rubber disc for ringcorn transformer 1
2562.349 Optical sensor 2
0900.741 Steppermotor assembly 2.2A 1
0900.744 Ringcorn transformer 1
4440.000 Funnel PP 30mm 1
79
Exploded view of Bottom frame assy 0830.401
80
Exploded view of Bottom frame assy (top view)
81
82
0830.402 Mainframe assy 0830 parts list
0830.402 Main frame assembly
Component Description Quantity
0043.674 Dispenser / valve frame 1
0043.690 Vial stripper 1
0043.691 Stripper guidingblock 1
0043.696 Drip cup injection valve 1
0815.308 Membrane pump 815/830 1
0830.302 Injection valve assembly 1
0830.816 Grounding cable mainframe 1
0900.302 Syringe dispenser 1
6450.048 Setscrew SS M4x10 1
6759.072 Wire harnass WHC 375-01 2
83
Exploded view of Mainframe
84
0830.403 Rearpanel assy 0830 parts list
0830.403 Rearpanel assembly 0830
Component Description Quantity
0043.671 Rearpanel 1
0051.071 Caution label 1
0830.601 Mainboard 0830 1
2147.359 Nylon washer M3 7
2524.141 Screw lock female pair 2
7500.011 Grounding cable 1
85
Exploded view Rearpanel 0830
86
0830.840 Cooling option 0830 parts list
0830.840 Cooling option 0830
Component Description Quantity
0043.341 Heatsink 2
0043.345 Insulation foam bottom plate 1
0043.346 Insulation foam peltier element 1
0816.741 Temp sensor assembly cooling option 1
0043.725 Cooling cover 1
0043.726 Cooling ring 1
0043.727 screw bush heatsink 2
0043.751 Connecting plate peltier element 2
2500.042 Peltier element 2
2682.006 Fan 2
4480.006 Tape 0.2MT
6759.030 Flatcable clamp 1
6409.035 Screw SS M3x12 1
6406.132 Philips countersink screw ss M4x40 4
87
Exploded view Cooling option 0830
88
Electronic drawings and schematics
89
0830.601 CPU PCB Component view of mainboard
90
0830.601 Electronic diagram mainboard
24VDC
GND
PGND
COM2
D00
D04
COL1
U28
ULN2003
16151413121110
9
1234567
8
O1O2O3O4O5O6O7
COM
I1I2I3I4I5I6I7
GND
C99470uF/35V
U15L4960
5
1
64
7
23O
SC
INP
SSGN
D
OUT
FBFC
KEYBOARD
SYR VALVE
VCC
A09
/IACK1
DIR2
/KEYSCAN
R2822K1
D151N4004
R25
1R
/RESET
/RAMUA01
D06
D10
D13
D00
/IRQ2
A11
CLOCK1
/AS
2.4576MHz
COL4
A01
U25A
74HCT04
1 2
PS1RXE025
C106
100nF
RV3
100K/P
C101
4700uF
C71
C510.33uF
VCC
VCC
24VDC
A10
/RESET
INJ_C
dis4
VERT. MOTOR
RELAY
VCC
VCC
24VDC
GND
D10
A05
A13
D14
SCAN1
D07
U9F
7406
13 12
D03D04D05
A15
A04
COL6
AUX2_NC
C59
HEATER
VCC
GND
A04
H/F1
/RESET
AUX2_C
GND AGND
R/W
D05A02
/DTACK
PH_C
/CD2
D00 SCAN0
D14
J13
MT7/5P
12345
C92100nF
C3
L2
BL02
U9D9 8
C19
100nF
/LDS
A05
A02
D06
SENS2
C3510nF
GND
DISPLAY
24VDC
A08
A12
SCAN2
ALARM
/DISPL
D00
INJ_MARK
INJ2_NO
U26
LT1054CP
1
2
3
4 5
6
7
8FB/SD
CAP+
GND
CAP- VOUT
VREF
OSC
VCC
NEEDLE
24VDC
24VDC
GND
GND
GND
FC1
A08
/IRQ3
SW_1
AUX1_NC
RY3
RG2L 24V
468
1
16
13119
U27
AD7224KN
13121110
9876
1514
31716
4
2
18
1
D0D1D2D3D4D5D6D7
WRCS
VREFRESETLDAC
AGND
VOUT
VDD
VSS
U30
74HCT273
3478
13141718
111
256912151619
D1D2D3D4D5D6D7D8
CLKCLR
Q1Q2Q3Q4Q5Q6Q7Q8
J10
MT7/5P
12345
C100
4700uF
C22
330pF
GND
PGND
A05
/EN_INT
A10
D15
A02
NDL_DOWN
R125K1
J19MT7/3P
123
C48
C760.33uF
C30
220uF/35V
VCC
A03
/COMBO
A03D03
/RAML
D04
D08
ALARM_NC
FAN 1
D12
D06
D03COL3
D10
SCAN1
C26
6.8uF
U25E
74HCT04
11 10
PGND
+5.000V
GD
PH_B
A07
D02
D06
R/W
SENS1
R20
1K5/1W
C501nF
C86
6.8uF
D08
A17
CLK297
SENS2
D05
/FLASHDATA
SCAN0
DDS
U10
MK48Z02
87654321
232219
182021
910111314151617
A0A1A2A3A4A5A6A7A8A9A10
CEOEWE
D0D1D2D3D4D5D6D7
R1010R
INH
VSGND
U37A
L293B
1
2
3 6
7
1684 5
C28
Q1
3
2 1
FAN 2
POWER
TRAY/NEEDLE
A04
9.8304MHz
/RAMU
D07
dis4
U4E
74HCT04
11 10
C78
2.2uF
C27
+5.000V
AGND
PGND
-15VDC
A21
A11
TRAY_POS
/RESET
dis0
AUX2_NC
U32
L298
5
6
7
10
11
12
1
15
9
4
8
2
3
13
14
INP1
ENA
INP2
INP3
ENB
INP4
CSEN1
CSEN2
VSS
VS
GND
OUTP1
OUTP2
OUTP3
OUTP4
C67
VCC
COL5
HEATER
NDL_LEFT_RIGHT
SENS3
U17
TS68230CFN8
4447454643
3231302928
4849505152
5679
1112
1819222324252627
3435363738394041
4
10
123
14151617
CLKR/WCSDTACKRESET
RS1RS2RS3RS4RS5
D0D1D2D3D4
PA1PA2PA3PA4
PA6PA7
PB0PB1PB2PB3PB4PB5PB6PB7
PC0PC1
TIN/PC2TOUT/PC3
DMAREQ/PC4 PIRQ/PC5PIACK/PC6TIACK/PC7
PA0
PA5
D5D6D7
H1H2H3H4
-15VDC
D15
A15
/IRQ1/LDS
CLOCK2
NDL_WASH
COL2
D05
D11
C80100nF
C2410nF
VCC
A11
OE_ADC
R/W
EN_NDL_HOR
CLK_ADC
S1
SW DIP-4
1234
8765U9C
5 6
A03
9.8304MHz
A11
D09
/VPA
CHK
A02
/EN_INT/EN_CLK
D01
AUX1_NC
U7C
7406
5 6
R910K
U24
74HCT273
3478
13141718
111
256912151619
D1D2D3D4D5D6D7D8
CLKCLR
Q1Q2Q3Q4Q5Q6Q7Q8
VCC
24VDC
CLK297
CTS
R/W
LOADSENS
dis1
D11
COL2
J14
MT7/5P
12345
RY4
RG2L 24V
468
1
16
13119
SYRINGE
RIGHT
D04
D07
VIAL_SENSE
D07
COMPRESSOR
D05
Q10
3
2 1
C105100nF
-15VDC
GND
/BERR
/IACK3
D04
U3
27C2048
21222324252627282931323334353637
220
1
1918171615141312109876543
3839
A0A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15
CEOE
VPP
O0O1O2O3O4O5O6O7O8O9
O10O11O12O13O14O15
A16A17
D11
C29
100nF
VCC
D01
D05
D06
NO1
VIAL_SENSE
NDL_WASH
U5
74HCT245
23456789
191
1817161514131211
A1A2A3A4A5A6A7A8
GDIR
B1B2B3B4B5B6B7B8
C104
10nF
C983.3nF*
J21
MT7/3P123
C7
C87
C97100pF
START_ADCA10
/DTACK
BUZZ
R/W
NEXT_INJ
U7E
7406
1110
U34
L6210
18
169
36
1114
27
1015
45
1213
K1K2
K3K4
A1A2
A3A4
OUT1OUT2OUT3OUT4
GNDGNDGNDGND
C43
100pF
J5
MT7/5P
12345
D13
/DTACK
/RAML
CLOCK1
D04
A01
D09
A13
SW_1
LOADSENS
C17
C74
10nF
C95
6.8uF
24VDC
PGND
/PIT
D01
D04
D03
SENS3
J24
HEADER 10X2-V
1 23 45 67 89 1011 1213 1415 1617 1819 20
J25
HEADER 7X2-V
1 23 45 67 89 1011 1213 14
J3
MT7/5P
12345
PELTIERS
+5.000V
D09
D15
D07
TRAY_HOME
COL1
D08
ALARM
NO2
RY1
RG2L 24V
468
1
16
13119
C4
R37
1K5/1W
COMMUNICATIONS
VALVE
GND
D00 D08
AUX1
NO2
C531uF
TP2
C2
Q9
3
2 1
A03
A10
D01
D04
D00
A04 A01
A01
CLK297
/IACK2
D03
D07
EN_SYRR4
26K7
TP5
C34
LOWER
/RESET
ALARM_C
24VDC
PGND
D06
NDL_DOWN
D05
D02
COL7
INH
VSGND
U37B
L293B
9
10
11 14
15
16812 13
TP4
C39
C15
T1
RFP15N05
1
23
Q8
3
2 1
R35510R
3 X 220uF/35V
GND
D09
A06
/UDS
COM4
D13
A05
OVEN_OPT
dis6
dis1
ALARM_C
C68
R29
1K5/1W
/IACK3
A06 SENS3
A10
TRAY_HOME
T2
RFP15N05
1
23
SENSOR
GND
PGND
D06
D15
D09
/CD2
D09
ALARM_NO
R1110R
47K/RS6
15
X1
9.8304MHz
1 2
GND
VCC
D12
D02
/IPL0
/OE
D06
AUX2
RN6
10K/RS9
123456789
J17
MT7/5P
12345
C61
U8
74HCT273
3478
13141718
111
256912151619
D1D2D3D4D5D6D7D8
CLKCLR
Q1Q2Q3Q4Q5Q6Q7Q8
VCC
VCC
AGND
PGND
D13
/VPA
/IPL2 /UDS
/FLASHDATA
D02
A02
NDL_UP
RV4
100K/P
U4C
74HCT04
5 6
J23
MT7/3P
123
Q2
3
2 1
U7D
7406
9 8
VCC
VCC
A06
A21
/WDOG
COM1
A04
INJ_MARK
U12
TS68000CFN
1523
272625
12131024
302928
112122
1920
6789
3233343536373839404142434445464748495051535455
543216867666564636261605958
CLKVPA
IPL0IPL1IPL2
BGACKBRDTACKBERR
FC0FC1FC2
BGVMAE
HALTRESETASUDSLDSR/W
A1A2A3A4A5A6A7A8A9
A10A11A12A13A14A15A16A17A18A19A20A21A22A23
D0D1D2D3D4D5D6D7D8D9
D10D11D12D13D14D15
C57
PS2RXE025
U7A
7406
1 2
L6
BL02
A03
A08
U6
74HCT245
23456789
191
1817161514131211
A1A2A3A4A5A6A7A8
GDIR
B1B2B3B4B5B6B7B8
C25
HOR. MOTOR
INPUTS
PH_A
A11
A10
FC1
/IPL2
CHK
RXD
/LDS
AUX1_C
RN2
10K/RS9
123456789
R302K7
KEYBOARD
G
GND
D01
D10
A07
2.4576MHz
/RESET
A07
D12
INJ2_C
J20MT7/3P
123
Q4
3
2 1
/BBUL
D03
/CD1
FANS_FAST
U25C74HCT04
56
VCC
D15
A09
DIR2 COOL_OPT
D00
R7100R
C79
2.2uF
C16
D12
BZX79C2V4
L5
BL02
VALVE
VCC
A04
D00
A03
A01
D05
TRAY_POS
Q7
3
2 1
C47100uF
GD
D03
A06
D02
/IACK1
/KEY
U33
L297
13
11
1017181920
121516
213
14
9
8
7
6
5
4SCHMCTR
EABCW/CCWCLKHF/FLRES
VSVREFOSCGND
SEN2
SEN1
D
INH2
C
B
INH1
A
D5
BZY97C15
R221R
C1010nF
U31
L6210
18
169
36
1114
27
1015
45
1213
K1K2
K3K4
A1A2
A3A4
OUT1OUT2OUT3OUT4
GNDGNDGNDGND
+5.000V
D07
/EN_CLK
D06
/BGACKD12
A11
/EN_MOT
C63
100nF
U7F
7406
13 12
PGND
GND
A12
A14
UPPER
dis6
C602.2nF*
C88
2.2nF*
C2010nF
/OE
A12
PH_D
U13
EPM7064LC68
789
15141312
54
21
6867
6059
56555452515049
1718
20 44454647
19
22232425
65646261
424140393736
27282930 32
33
57
10
I/OI/OI/O
I/OI/OI/OI/O
I/OI/O
OE2/INCLR/INOE1/INCLK/IN
I/OI/O
I/OI/OI/OI/OI/OI/OI/O
I/OI/O
I/O I/OI/OI/OI/O
I/O
I/OI/OI/OI/O
I/OI/OI/OI/O
I/OI/OI/OI/OI/OI/O
I/OI/OI/OI/O I/O
I/O
I/O
I/O
U18
TS68901Q04
19
20
222339
525124
34567
4938365037
15161718
109118
3435
2526272829303132
4142434445464748
2
X1
X2
TAITBICLK
CSDSRESET
RS1RS2RS3RS4RS5
IACKIEIINTRDTACKIEO
TAOTBOTCOTDO
SISORCTC
TRRR
I0I1I2I3I4I5I6I7
D0D1D2D3D4D5D6D7
R/W
D13
VCC
-15VDC
D08
/CD2
D04
/DTACK D00
D01
EN_FANS
FANS_FAST
R361R
AGND
+5.000V
A18
/IRQ1
D03
HEATER
AUX1
RY2
RG2L 24V
468
1
16
13119
C11
TP1
14
J1
MT6/3P
123
(EE2)
COMPRESSOR
VCC
PGND
GND
VCC
A09
COOL_OPT
INJ2_NC
C64
R32
1K5/1W
P1
DB15VF
815
714
613
512
411
310
291
VCC
VCC
+5.000V
/BBUU
/CD1
A05
D02
EN_DC_MOT
dis5
C541uF
RV22K/P
U16
ADC0809262728
12345
1216
10
97
171415818192021
252423
622
11
IN0IN1IN2IN3IN4IN5IN6IN7
REF+REF-
CLK
OEEOC
D0D1D2D3D4D5D6D7
A0A1A2
STARTALE
VCC
R34
1K5/1W
C94
10nF
C852.2uF
RN1
10K/RS9
123456789
C58
C6VCC
VCC
A12
/KEY
/DAC
R/W
D10
A14
D02
EN_VALVE
R33
1K5/1W
C560.33uF
C96100pF
GND
GND
A15
A17
RV110K/P
C33
ROTATION
VCC
/KEYSCAN
DIR1
COOL
R31
1R
U36
ULN2003
16151413121110
9
1234567
8
O1O2O3O4O5O6O7
COM
I1I2I3I4I5I6I7
GND
C13
R34K3
C45
1nF
PGND
GD
D11
/IPL1
A07
D13
/BBUL
A18
U4D
74HCT04
9 8
GND
VCC
A15
A03
dis5
D06
COOL
C65
R3933R
PSU FAN
HOME POS
Vout=0-5V
GD
VCC
D05
dis3
D6
BZY97C15
U25D74HCT04
98
A01
/IRQ1
D02
D14
C1
C21
18pF
L1
160uH/2.5A
U9A
7406
1 2
CARD
VCC
GND
FC2
D11
/IRQ2 /RESET
A09
COL7
R17
1K5/1W
R5
100R
D2
MBR1660
VCC
VCC
/BGACK
A16
FC2
D07
C44
100pF
+15VDC
GND
GND
D02
RS
C1071nF
R23
1R
12
D08
A23 A13
A05
A01
24VDC
PGND
GND
A06
/WDOG
A16
/OE
COL3
U39
ULN2003
16151413121110
9
1234567
8
O1O2O3O4O5O6O7
COM
I1I2I3I4I5I6I7
GND
J7
MT7/5P
12345
R21
1K5/1W
R241R
D1
BYV27-100
C9220uF/35V
SYR VALVE
+5.000V
24VDC
PGND
GND
24VDC
CLK_ADC
A04
PH_B
INJ_NO
U23UA7815UC
1
2
3VI
GN
D
VO
U4A
74HCT04
1 2
13
C23
68pF
TRAY MOTOR
24VDC
GND
/FEAT
A05
D03
D07
START_ADC
SCAN2
C93100uF
C32
C4133nF*
VCC
PGND
A082.4576MHz
/OE
RTS
D02
D05
COMPRESSOR
RN510K/RS6
123456
C46
U29
L298
5
6
7
10
11
12
1
15
9
4
8
2
3
13
14
INP1
ENA
INP2
INP3
ENB
INP4
CSEN1
CSEN2
VSS
VS
GND
OUTP1
OUTP2
OUTP3
OUTP4
U38
74HCT273
3478
13141718
111
256912151619
D1D2D3D4D5D6D7D8
CLKCLR
Q1Q2Q3Q4Q5Q6Q7Q8
GND
A07
/DISPL
D01
INJ2_NO
COL4
RN44K7/RS6
123456
U21REF02CP
2
4
6VI
GN
D
VO
C52100nF
C8210nF
VCC
A08
A15
/RES2
/CD1
TP3
R1 10M
A01
EN_VALVE
D13
C18
Q3
3
2 1
24VDC
D11
H/F1
H/F2
BUZZ
COL5
C72
J4
MT7/5P
12345
BUZZER
VCC
A08
/RESET
A10
CTS
D07
D00D01
D07
dis2
+
-
U20CA3130
3
2
4 8 1
6
57
U25F
74HCT04
13 12
MOTOR
VCC
PGND
FC0
/OE
EN1
D09
D02
A01
EN_FANS
D7
J2
MT7/5P
12345
VCC
/IPL0
/OE
EN_NDL_HOR
D07
DDS
EN_SYR_VALV
STOP_INP
R19
15K
J8MT7/3P
123
C810.33uF
Q5
TLC226A
3
2 1
Wednesday, August 06, 1997
31.0830.601 1
830 CPU
Spark Holland bv.
Appr. Date:
A1
1 1
Title
Size Document Number Rev
Date: Sheet of
AGND
PGND
GND
R/W
A07
D14
COL8
INJ2_NC
NO1
R633K2
U25B74HCT04
34
DDS
VCC
A04
/BBUU
/BBUL
PH_A
C14
+15VDC
GND
PGND
A05
INJSENS
INJ_NO
AUX1_NO
SCAN3
R14
15K
D4
C5
SYNC
OVEN_OPT
D08
R1327R
DISPENSER
NEEDLE
GND
+5.000V
A02
D00/OE
/DTACK/BERR
D00
SENS1
2.4576MHz
D12
COL8
D05
AUX2
AUX2_NO
D8
1N4004
J16
PCMCIA 68HDR
23456789
10111213141516
18192021222324252627282930313233
363738394041424344454647484950
52535455565758596061626364656667
17 5134 68351
D3D4D5D6D7CE1A10OEA11A9A8A13A14WE/PGMRDY/BSY
VPP1A16A15A12A7A6A5A4A3A2A1A0D0D1D2WP
CD1D11D12D13D14D15CE2
RFDHRFURFUA17A18A19A20A21
VPP2A22A23A24A25
RFU(RESET)
(WAIT)RFUREG
BVD2BVD1
D8D9
D10CD2
VCC
VCC
GN
D
GN
D
GN
D
GN
D
U22L4977A 9
14
15
3
12 5 8 10 2
11
7
6413
1
VI
VREF
VST
RIN
SST
RD
GN
D
FC CO
SC
FI
OUT
BT
RO
UT
SYN
C
RO
SC
J12
HEADER 13X2-V
1 23 45 67 89 1011 1213 1415 1617 1819 2021 2223 2425 26
GND
A13
A22
D12
A08
FC0
D03
/PIT
A13TXD
D01
/RESET
EN_TRAY
RS
J6
MT7/5P
12345
C102
10nF
OUTPUTS
VCC
24VDC
A09
A14
D00
D02
PB RST
TD
TOL
ST
RST
RST
U14
DS1232
1
2
3
7
6
5
P2
DB9VF
594837261
C382.2uF
+15VDC
AGND
EN1
/IPL1
/RESET
A03
/ROM
SW_2
C73
PGND
A07
A11
A01
D07
SENS4
/ROM
D12
R26
1K5/1W
GND
A06
H/F2
AUX1_NO
C66
D14BZT03C12
R2220R
C40
2.2nF
(EE1)
MOTOR
GND
A02
R/W
A03
D06
FREEZE_INP
COL6
AUX1_C
RN3
4K7/RS6
123456
R18
1K5/1W
C42
1nF
PGND
D10
EN_TRAY
D05
/BBUU
/COMBO
/IRQ2
D01
LOADSENS
R271R
C37
100pF
SYRINGE
GND
D14
/IACK2
/BR
TXD
R/W
D01
U35
L297
13
11
1017181920
121516
213
14
9
8
7
6
5
4SCHMCTR
EABCW/CCWCLKHF/FLRES
VSVREFOSCGND
SEN2
SEN1
D
INH2
C
B
INH1
A
C108DSS306-2200pF
PGND
GND
STOP_INP
OE_ADC
INJ_NC
ALARM_NO
C9010uF
GND
GND
-15VDCD13
D01
A04
A17
D15
24VDC
PH_C
A02
A22
A03
/EN_MOT/WDOG
/RESET
INJ_NC
AUX2_NO
C103
10nF
R8
15K
GD
D14
R/W
COM8
INJSENS
/FEAT
L3
BL02
LEFT
PGND
VCC
A01
A14
D15
AUX2_C
R15
4K7
GND
A14
D05
EN_NDL_VER
/RESET
NDL_UP
SYNC
D06
dis0
dis3
C62
4.7uF*
C12
L4
40uH/8A
C31
R41
220R
U1
6264
109876543
25242123
2
1202722
1112131516171819
26
A0A1A2A3A4A5A6A7A8A9A10A11A12
A14CSWEOE
D0D1D2D3D4D5D6D7
A13
COOLING
PGND
AGND
GND
DIR1
A02
A09
/IRQ3
D06 EN_SYR_VALV
A16
D04
C91470uF/35V
J11
MT6/5P
12345
U4B
74HCT04
3 4
VCC
GND
/BR
/IRQ3
D03
D14
FREEZE_INP
/RES2
D10
SENS4
R38
1R
C77
2.2uF
C55
R16
18K
VCC
A12
/CTRL_IO
D02 COM1
RXD
NDL_LEFT_RIGHT
D04 INJSENS
dis7
INJ_C
VCC
A05
COM8
COM2
/CTRL_IO
R40
100R
A02
/ROM R/W
EN_SYR
INJ2_C
U11
MK48Z02
87654321
232219
182021
910111314151617
A0A1A2A3A4A5A6A7A8A9A10
CEOEWE
D0D1D2D3D4D5D6D7
J9
MT7/10P
12345678910
C69
RN710K/RS6
1 2 3 4 5 6
MEMORY
A23
COM4
RTS
D04
D01
D03
dis7
C7010nF
C49
1nF
C84
390pF
U7B
7406
3 4
U2
6264
109876543
25242123
2
1202722
1112131516171819
26
A0A1A2A3A4A5A6A7A8A9A10A11A12
A14CSWEOE
D0D1D2D3D4D5D6D7
A13
INJECTOR
GND
/DAC
D11
A06
CLOCK2
D03
COL8
+
-
U19CA3130
3
2
4 8 1
6
57
D3
C89
10nF
C83
22nF*
U9E
7406
11 10
C8
100nF
U4F
74HCT04
13 12
AGND
VCC
UPPER
R/W
D11
NEXT_INJ
dis2
D9
1N4004
D10
1N4004
C75
Q6
3
2 1
BZ1
CPM121A0A
SENSORS
GND
A09
/AS
SCAN3 SW_2
EN_NDL_VER
D04
LOWER
/OE
ALARM_NC
EN_DC_MOT
J15
MT7/5P
12345
47K/RS6
16
C36
100nF
U9B3 4
91
Tray needle Sensor PCB 0830.602 comp. view
Keyboard PCB 0830.603
93
Multilink serial interface PCB 0725.625
C2
1uF/63V
S1
SW DIP-4
1234
U1D
74HCT08
12
1311
S2
SW DIP-4
1234
CONNECTED
Com3
VCC
GND
Com1
COM3
VCC
GND
Tx_1
U1B
74HCT08
4
56
U1C
74HCT08
9
108
TO PC
C7 1uF/63V
Com0
ACE or HPD
VCC
Com0
AUTOSAMPLER
TO HPD/ACE
Rx_2
Communication board installed in
Com0
Communication board installed in
SYNC. LINESCONECTED TO
PC
Com1
GND
Tx_int
GND
C64.7uF/63V
C4 4.7uF/63V
GND
C1
22uF/63v
S1 S2
DIP1: OFF DIP1: OFF
DIP2: OFF DIP2: ON
DIP3: OFF DIP3: ON
DIP4: OFF DIP4: OFF
C5
10nF
IF NO REQUREMENTSNEEDED
C3
10nF
S1 S2
DIP1: ON DIP1: ON
DIP2: ON DIP2: OFF
DIP3: ON DIP3: OFF
DIP4: ON DIP4: ON
Rx_1
SYNC.LINES
OFF
ONLY AS CONTROL
LINES ON
Rx_int
U1A
74HCT08
1
23
COM2
VCC
S1 S2
DIP1: ON DIP1: ON
DIP2: ON DIP2: ON
DIP3: ON DIP3: ON
DIP4: ON DIP4: ON
J1
HEADER 10X2
1 23 45 67 89 1011 1213 1415 1617 1819 20
GND
U2
MAX240
43
35412
36
42
18
19
64405
8
177
10
30
2625
2728
29
15161314
38393
37
SHDN
R5IT5OT5I
R5O
EN
GND
VCC
T3OR3IR4IT2O
T20
R1IT10
R2I
V-
V+C1+
C1-C2+
C2-
T1IR10R2OT2I
T4IR4OR3OT3I
Com2
Rx_int
C8 1uF/63V GND
S1 S2
DIP1: ON DIP1: ON
DIP2: ON DIP2: OFF
DIP3: ON DIP3: OFF
DIP4: ON DIP4: ON
TO PC
Tx_int
SYNC. LINESSWITCHED
OFF
Tx_2
CONNECTED
S1 S2
DIP1: ON DIP1: ON
DIP2: OFF DIP2: OFF
DIP3: ON DIP3: OFF
DIP4: OFF DIP4: ON
CONNECTED