im-018 combine ilm operators manual

Doc No: IM-018 Iss: 1 Copyright 2013 Measurement Devices Limited Page 1 of 32

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Integrated Laser Module (ILM)

Operators Manual

Measurements Devices Limited Redwood House, Northminster Business Park, Upper Poppleton, York YO26 6QR Tel: +44 (0) 1904 736 736 Fax: +44 (0) 1904 736 701


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Care of equipment

MDLs Integrated Laser Modules (ILM)

product portfolio are precision products

and must therefore be treated with care.

Changes to MDL products

MDL Ltd reserves the right to improve,

change or modify its products and

documentation without incurring any

obligation to make changes to MDL

equipment previously sold or distributed.

Disclaimer

MDL HAS MADE CONSIDERABLE EFFORTS

TO ENSURE THE CONTENT OF THIS

DOCUMENT IS CORRECT AT THE DATE OF

PUBLICATION BUT MAKES NO

WARRANTIES OR REPRESENTATIONS

REGARDING THE CONTENT. MDL

EXCLUDES LIABILITY, HOWEVER ARISING,

FOR ANY INACCURACIES IN THIS

DOCUMENT.

Safety

ILM laser modules are distance-meters

designed for applications where weight,

size and power consumption are critical.

It is essential that the unit and all

accessories are operated in accordance

with the instructions in this user manual

and it is the responsibility of the user to

ensure that, in the event of a failure on

any part of the MDL system, the motion

system remains safe.

In the case of motion systems with

powers or speeds capable of causing

injury, it is essential that appropriate

safety protection measures are included

in the machine usage. Further guidance

can be found in the European Standard

EN292 Safety of machinery General

principles of design Risk assessment and

risk reduction.

Warranty

MDL Ltd warrants its equipment provided

that it is operated exactly as defined in

associated MDL documentation.

Laser safety

DO NOT STARE DIRECTLY

INTO THE BEAM

In accordance with EN60825-1 and US

standards 21CFR 1040.10 and 1040.11

except for deviations pursuant to Laser

Notice no. 50, dated June 24, 2007. ILM-

35-X, ILM-150-X and ILM-500-X portfolio

of modules are Class 1 laser products,

whereas ILM-35-XP, ILM-150-XP and ILM-

500-XP portfolio of modules are Class 2

laser products, where X = R, D, T and S.

Safety goggles are not required since ILM-

XX-X based modules are considered eye-

safe, whereas for ILM-XX-XP based

modules the blink reaction of a human

will protect the eye from damage. Do not

stare into any laser radiation source(s) or

shine into the eyes of others. It is safe to

view a diffuse-reflected beam. Do not

dismantle the unit in any way; doing so

may expose laser radiation in excess of

Class 1, or Class 2 limits respectively.

CAUTION LASER LIGHT IS BRIGHT AND

BLINDING DO NOT SHINE AT AIRCRAFT

OR VEHICLES AT ANY DISTANCE.


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Safety information

The following symbol is used in this

manual wherever important safety

information is present.

Before proceeding with

any electrical connection

or operation of the

laser system, refer to the general safety

information throughout this manual.

FCC (USA only)

Information to the user (47CFR section

15.19)

This device complies with Part 15 of the

FCC Rules. Operation is subject to the

following two conditions:

1. This device may not cause harmful

interference, and

2. This device must accept any

interference received, including

interference that may cause

undesired operation.

Information to user (47CFR section

15.21)

The user is cautioned that any changes or

modifications not expressly approved by

MDL Ltd or authorised representative

could void the users authority or operate

the equipment.

Information to the user (47CFR section

15.105)

NOTE: This equipment has been tested

and found to comply with the limits of a

Class A digital device, pursuant to Part 15

of the FCC Rules. These limits are

designed to provide reasonable

protection against harmful interference

when the equipment is operated in a

commercial environment. The equipment

generates, uses and can radiate radio

frequency energy and, if not installed and

used in accordance with the ILM manual,

may cause harmful interference to radio

communications. Operation of this

equipment in a residential area is likely to

cause harmful interference in which case

the user will be required to correct the

interference at his own expense.

EC Compliance

MDL Ltd declares that the ILM-35-R/-RP/-

D/-DP/-T/-TP/-S/-SP, ILM-150-R/-RP/-D/-

DP/-T/-TP/-S/-SP and ILM-500-R/-RP/-D/-

DP/-T/-TP/-S/-SP product portfolio of

laser modules and associated accessories

comply with the applicable directives,

standards and regulations.


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WEEE

The use of this symbol on MDL products

and/or accompanying documentation

indicates that the product should not be

mixed with general household waste

upon disposal. It is the responsibility of

the end user to dispose of this product at

a designated collection point for waste

electrical and electronic equipment

(WEEE) to enable reuse or recycling.

Correct disposal of this product will help

to save valuable resources and prevent

potential negative effects on the

environment. For more information,

please contact your local waste disposal

service or MDL distributor.


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Contact Information and Warranty

Dear Customer We congratulate you on the purchase of an Integrated Laser Module (ILM). You are now the owner of a high quality laser measurement module. The system is designed to be easy to operate. However, we would ask you to take the time to carefully work through these operating instructions before using the instrument and to keep the manual with the instrument at all times. If your system requires servicing or calibration, or if there are questions arising beyond the scope of this manual, contact MDLs Service and Support Centre at:

Alternatively, for information on your local, MDL approved service centre, visit our website: http://www.mdl.co.uk For best service, please make a note of the serial number, which can be found on the instrument.

Product Warranty Unless otherwise specified, MDL warrants the equipment for a period of twelve months from date of delivery. This warranty is given subject to the following conditions: MDL shall be under no liability in respect of any defects in the equipment arising from any drawing, design or specification supplied or modification requested by the customer. MDL shall be under no liability in respect of defects arising from fair wear and tear, wilful damage, negligence, abnormal working conditions, failure to follow MDLs instructions (whether oral or in writing), misuse or alteration or repair of the equipment without MDLs approval. Software is not covered by this warranty. Claims in respect of defective equipment must be intimated by notice in writing to MDL and the customer, pending written instructions from MDL, must retain the equipment. Following authorised return of the equipment, which must be made by the customer on freight prepaid basis, MDL will examine the equipment and, if the claim is justified at MDLs option, will repair the defective equipment or will make replacement without charge and MDL will

Measurement Devices Ltd,

Redwood House, Hackness Road Northminster Business Park,

Upper Poppleton, York, YO26 6QR

Tel: + 44 (0) 1904 736 736 Fax: + 44 (0) 1904 736 701 e-mail: [email protected]

Internet: http://www.mdl-laser.com


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have no further liability to the customer.

ILM-35-XX/-150-XX/-500-XX Part Numbers The integrated laser module (ILM) may be integrated into a number of suitable system applications that primarily require distance measurement. ILM modules may be configured to output distance measurement (-R (slow speed target), -D (high speed target), speed (-S) and height of vehicles (or objects) and may also be set to trigger (-T) cameras in tollbooths or law enforcement applications. Such standard configuration products have a nominal laser firing frequency of 1000 Hz. The individual part numbers for the ILM product portfolio are listed below in Table 1 -

Part Number Description

ILM-35-RX A laser distance measurement module with reflectorless

range up to 35 m (115 ft) for slow speed targets.

ILM-35-DX A laser distance measurement module with reflectorless

range up to 35 m (115 ft) for high speed targets.

ILM-35-TX A laser triggering device with reflectorless range up to 35

m (115 ft) for high speed targets.

ILM-35-SX A laser speed measurement module with reflectorless

range up to 35 m (115 ft) for high-speed targets.

















Table 1: ILM product configuration options

For all module cases listed above, the optional accessory of the addition of a secondary, collinear visible laser source, or targeting beam, is offered. Product designation is defined by the part number together with the addition of a further P-suffix.


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The purchase of MDLs Laser Programming Kit (LPK) allows the user to reconfigure the operational function of the ILM between all modes of operation - distance (range), trigger and speed functions. All rights are reserved. This manual and equipment referred to herein are copyright held works of Measurement Devices Ltd., York, England. Reproduction in whole or in part, including utilisation in machines capable of reproduction or retrieval, without the express permission of Measurement Devices Ltd. is prohibited. Reverse engineering is also prohibited. The information in this document is subject to change without notice. Some names referred to within this document are registered trademarks. This manual refers to MDLs standard range of modules and software. Customers purchasing custom units may have many similarities with the specifications and performance given within, but should refer to additional documentation for specific differences to your unit.


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2. Integrated Laser Module (ILM-35-XX/-150-XX/-500-XX) MDLs range of OEM Integrated Laser Modules (ILM) utilise invisible, eye-safe, pulse time-of-flight technology to provide users with high-speed distance, contactless, speed or height information to static or moving passive targets. Data rates from 2 Hz to 1000 Hz are available with a range of electrical and data outputs to suit most applications. These laser measuring modules have been specifically designed for additional integration, each giving a reflectorless range up to 35 metre (115 ft), 150 metre (492 ft) and 500 metre (1640 ft) for the ILM-35, ILM-150 and ILM-500 units respectively.

Figure 1: ILM-35 (-150)-XX / 500-XX unit images The Integrated Laser Module (ILM) portfolio of products, as shown in Figure 1, is designed as OEM modules for range (distance), trigger or speed measurements to passive targets. The use of reflective targets at short ranges (< 50 m), such as survey prism, cube-corner or retro-reflective foil, should be avoided. All laser modules operate using a technique called time-of-flight technology, which put simply, measures the time taken for a very short pulse of infrared laser light to travel from one (transmit) window from the module to a target and back to a very low noise detector located behind the second window (receive). The amount of light which is returned is not important! Sometimes of course no light (or not enough) returns and the laser shall output a reading to indicate no range. There are two general reasons for a no range indication, namely

1 That the module times out as it waits for a return light signal. Each module has an internal reset feature which causes the internal timer to reset and not wait any longer for the return reflection. This is larger than the distance for which the module is designed to operate to passive targets. There is a limit to the size of the number that a single counter can register, before it rolls over. Some of our modules have dual counters that mean they wait longer before resetting.

2 Not enough light was returned in the time allowed. This is resultant of a very low target reflectivity or the size of the target being too small or the surface being too reflective and deflecting the laser pulse away from the laser detector. As any laser beam propagates, it diverges. Many factors define how much each beam diverges. However, as it does the density of the light that reaches the target shall be reduced hence a small target at a longer distance will not reflect as much light, in particular, if the target is smaller than the beam diameter.


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The factors that define how well a module will work therefore depend upon the size of the target, the conditions of the environment and the general reflectivity of the target material. It is not possible to give a definitive guide as to the range of a module; hence the numbers that are defined are to be used as a guide as to their typical performance and can be used to help with their initial selection for comparison. For example, the ILM-150-R/-D/-T/-S laser module will work to a 2.5 m x 0.4 m Kodak 90% reflective white card target to a minimum 150 m distance (reflectorless range). If the target is more reflective, then the range shall increase however should the target be less reflective then the range shall decrease. The current datasheet and technical specification in this manual details the maximum range of the unit to both reflectorless and reflective targets. The laser pulse rate, i.e. the number of distance measurements recorded per second, of the various modules shall vary dependent on the version of product purchased and the mode of operation for that module and where programming software has been purchased, this can be varied within set limits. Each module does its own calculation internally before it outputs the data in the format selected. All of the laser modules have a serial data output (RS232) to communicate with a suitable PC or controller. In addition they have a digital output which can be used as an event trigger if needed. Note it is also possible for the laser to receive more than 1 pulse back from the target! For instance, if the module is directed to fire through a window to a tree with a building behind it, it is very possible that the module would receive a reflected pulse returned from the window glass, from the branches of the tree and from the building behind. Which is the correct distance that we are measuring to? The first pulse is from the glass window, the last pulse is from the building. It is possible to have both distances output from the laser by requesting first or last pulse, or even both pulses. It is important that the instrument temperature should lie between -10oC and +60oC when the instrument is switched on. The ILM portfolio of products is designed to be water resistant to IP67. The ILM makes use of sensitive optical, electronic and mechanical components and requires appropriate handling. Do not use paint solvents to clean the instrument. Customers may use HPLC-grade (>99.8%) iso-propyl-alcohol (propan-2-ol) in combination with lint-free cotton-wool buds or wipes to clean the lenses and optional red alignment laser window of the laser module. The user may apply a mild detergent using a cloth to clean the metalwork.

Repeated exposure to iso-propyl-alcohol may cause skin dryness or cracking. It is recommended that personal protective equipment (PPE) is used when dispensing and using HPLC-grade acetone, such as eye-shields and/or face-shields with protective gloves.

Operators should remember that direct sunlight or a similarly intensely radiating source of light looking directly into the instrument lenses must be avoided. The focusing effect of the optics inside such devices can create a highly concentrated point image with enough energy density


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to damage the detector inside the unit. Simple shades or suitable external protection can be used to solve this potential problem and mounting at a suitable angle etc. Never apply force or shock to the lenses or to the housing of the instrument. As with other optical instruments, the ILM should be protected from being shaken, knocked or dropped.


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3. ILM Operation / Data Format When power is applied, the laser module shall undergo a start-up routine and then commence to take range (speed or trigger) measurements and output range (speed or trigger) data at a standard maximum rate of 1000 Hz, or a lower frequency that is customer-set. A measurement consists of a number of laser pulses, the received signal from the pulses is processed and the corresponding range data is transmitted via serial communications that requires RS232 data connection. RS232 serial communications is available on most computers either directly or via a USB adapter interface. To view ASCII output data or communicate with the laser (to change some settings for example) you need a Terminal Emulator or the Hyper Terminal program which is included in the WindowsTM Operating system. Go through the following set of links: START -> All Programs -> Accessories -> Communications -> Hyper Terminal Enter a name for your new connection and press OK. The next window that appears may have some telephone numbers in some of the boxes that are on the screen. Ignore these values as they are not required. However the bottom box which has the title Connect Using, has a drop down menu available that requires to be set to the COM port that the ILM is connected to. If this is directly to the computer, it is likely to be COM1, whereas if a USB to serial converter is being used then it is likely to be higher. All available COM ports on the computer are listed in the drop down list that appears. The next window to appear is the COM Properties Port Settings window, as illustrated in Figure 2.

Figure 2: COM Properties Port Settings window The Baud rate (Bits per second drop-down menu) for which the ILM is configured must be known in order to establish data communications connection at the correct speed. .The


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nominal, standard setting is either 9600 or 38400 dependent upon the firing frequency and sampling criteria for the specific ILM purchased, however the designated value could be any of the available options in the list in some cases (customer specific). The remaining boxes in this window need to show 8 (Data bits), None (Parity), 1 (Stop bit), None (Flow control) as the list section is completed. Select OK. If any data is being output by the laser, then it will now be displayed in the remaining window. If this data is not readable, then it is either a binary output (see end of this section for decoding) or the incorrect parameters (baud rate) has been selected. To change the baud rate (go back to the window shown above). First go to the Call menu and select Disconnect. Then go to the File menu and select Properties (you can change the COM port number at this point if an incorrect COM Port has been previously connected, or wish to try another). Click the configure button and the previous window shall appear again. Once the settings have changed, click OK, then OK and re-use the Call menu and select Call Whilst MDL are happy to work with OEM customers to develop individual laser modules, MDL have introduced a Laser Programmers Kit (LPK) Software package that allows customers to program any number of lasers with a huge variety of options (see section on Software for more details). For simplicity, MDL have four standard module configurations, namely low and high-speed range (measurement, -R, -D), speed (-S) and trigger (-T), which may be purchased as stand-alone units for those customers that do not require the flexibility to make changes to the standard versions. ILM-XXX-R: This module measures distance (range) and has an output of nominally 9 Hz if left in a free running mode. The output data is in ASCII text format and so is very easy to display directly on a PC or a hand held PDA via a communications window such as Windows Hyper Terminal. This module type is used where distance (range) measurements are required and the target or the object containing the module is not moving at high speed. The principle is that the output data from the module is a combined average of a small number of pulses which increases the accuracy of the range measurement being made. When power is applied to the laser it shall go through a short start-up routine and then begin to make distance (range) measurements and output range data. A range measurement consists of a number of laser pulses, the received signal from the pulses is processed and the corresponding range data is sent out in serial RS232 format. The range data is sent in ASCII format at 9600 baud, 8 bits, no parity, 1 stop bit. The range data string consists of 10 characters including carriage return, an example of which is specified below:

00026.56m


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No range detected would be displayed as 99999.99m No range is termed as no hits and sometimes this has special consideration depending on what the application is. It is also possible to request units that have the output in units of feet as opposed to metres. The range reference point is the rear most mounting hole, which is 40 mm (ILM-35-XX; ILM-150-XX) and 43 mm (ILM-500-XX) back from the module front face (see mounting diagram) respectively. ILM-XXX-D: This module measures distance (range) and has a data output nominally between 200 - 1000 Hz if left in a free running mode. Output data may be available in ASCII text format and so very easy to display directly on a PC or a hand held PDA via a communications window such as Windows Hyper Terminal, or available in Binary to reduce the flow of data needed. The specific data communications protocol is dependent upon the overall data rate of the customer-defined unit. This module type is used where distance (range) measurements are required and the target or the object containing the module is moving at high speed. The principle is that the output data from the module is either single-shot or the combined average of a small number of pulses which increases the accuracy of the range measurement being made. All other considerations are equivalent to the ILM-XXX-R module. ILM-XXX-S: This module is designed to measure speed. In simplistic terms it does this by making a distance measurement to the target, waits for a short time and then makes a secondary distance measurement. The change in the distance is used to calculate the speed that the target is moving, relative to the ILM itself. The output is in ASCII text and so is easy to display directly on a PC or hand held PDA. The module outputs its data each time it detects a movement with the corresponding distance to the target. The ILM-XXX-S device may also output ranges if requested without any speed data. When power is applied to the laser it will go through a short start-up routine and then start to take range measurements and output speed and range data. A measurement consists of a number of laser pulses, the received signal from the pulses is processed and the corresponding speed and range data are sent out in serial RS232 format. The speed and range data are nominally specified in metric units, however imperial units are available if requested. The speed and range data is sent in a serial ASCII format data string as exampled below:

044.99kph,0010.46m Such a data string, in metric units, would represent a speed of 44.99 kilometres per hour and a range of 10.46 meters. Note the following:

1 Upon pressing R shall induce the ILM-XXX-S to output only the current range in metric units. In this case the data format would defer to the following: 0kph,0010.46m


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2 Upon pressing R for a second time reverts the ILM-XXX-S back to speed measurement, hence acting as a toggle

ILM-XXX-T: This module also has a data output between 200 - 1000 Hz (unless specified otherwise). The higher data rate means that the output has to be in Binary to reduce the flow of data needed. MDL has proprietary software to convert the binary numbers so that they are easier to understand on a PC screen particularly when trying to align the modules during installation. This software is included upon the CD supplied with the ILM-XXX-T or can be obtained from MDL directly. This module has two main features. The first is a standard high output data rate which is preferred for faster moving objects. The second feature is the additional trigger output which, alongside the RS232 communication line, provides an output pulse via a separate additional contact (identified in the previous section as the Orange wire with an additional resistor needed). The range window(s) that the trigger is set is completely customer-defined. In greater detail, the trigger state of the ILM-XXX-T shall change dependent upon the range currently being measured with reference to one or two window value limits. The unit is given four (4) range values, all of which are input in cm via the serial communication port. Pressing T will force the laser to present the current values and to ask for a new T1? Should the operator enter a value of 100 and press then they will have entered a window minimum limit of 1 metre for this value. The values for the remaining three window limit numbers (T2, T3 and T4) must be continuously increasing, for example 200, 400 and 500 respectively. If using the dual window setup, the ILM-XXX-T trigger will output a low state when the range measured is between 1 metre and 2 metres or 4 metres and 5 metres. The active windows can be changed at any time. The ILM-xxx-T unit requires to be turned off and on again to start using any new values. If using a single window, the ILM-XXX-T unit shall ignore the T2 and T3 values and only change the trigger state of the units digital output if the current range value lies between T1 and T4. The main uses of this feature are for event triggering such as cameras when objects are at a fixed distance away (vehicle photographing in speeding and red light enforcement applications) or for overheight applications. When power is applied to the laser it will go through a start-up routine and then begin to take range measurements at a rate of 1000 Hz (unless specified otherwise). Commands to control the module are limited without the MDL programming software, but by pressing H the operator will receive a full list of available dynamic commands which are available. Not all dynamic commands function in each running mode! If the range data command (E) is activated, the ILM-XXX-T unit starts to output range data. This is a toggle function which starts and stops the process with the same command. In this case a range measurement consists of a single laser pulse, the received signal from this pulse is processed and the corresponding range data is sent out in serial RS232 format.


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The range data is sent in two (8 bit) bytes as an encoded 12 bit binary word to represent the range data in decimetres, dm. The first byte contains the 6 MSBs and the second byte contains the 6 LSBs of the word. The most significant bits are set to 10 for the most significant byte and to 00 for the least significant byte. Example: MSB LSB Decodes to 12 bits RANGE

10101001 00010111 101001010111 2647dm 10101011 00111110 101011111110 2814dm 10000011 00000001 000011000001 193dm 10001101 00101100 001101101100 876dm

If no range is detected the data output is: MSB LSB Decodes to 12 bits RANGE

10111111 00111111 111111111111 4095dm In addition to the range output, it is also possible to have a secondary output such as a pulse counter or the absolute value of the signal strength which is being returned to the laser from the target. If either of these options are turned on, then in addition to the coded range information, two more bytes will follow each range output and these are encoded in the same way as detailed below. If the signal data is activated, the laser module starts to output the Signal Strength. The values of the signal strength are coded on a non-linear 0 to 4096 scale. If the pulse counter is in operation, then this number will cycle through from 0 to 4095. The signal strength data is sent in two (8 bit) bytes as a 12 bit binary word. The first byte contains the 6 MSBs and the second byte contains the 6 LSBs of the word of the signal strength. The most significant bits are set to 11 for the most significant byte and to a 01 for the least significant byte. Example: MSB LSB Signal Strength/Pulse Count

11000111 01000001 448 11001011 01101100 748

If no range is detected the data output is: MSB LSB Signal Strength

11000000 01000000 0


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Note: Since the maximum range that can be expressed in this two byte binary format is 409.6 m. The ILM-500 therefore needs to be switched to 115200 baud and ASCII output for longer ranges. Binary Decoder Software: If the output is in Binary format, MDL can supply a converter program that converts the range data coming from the laser module(s) into ASCII text. This software program, called IM_Display.exe, does not need to be installed it is a self-running exe file that can be copied anywhere onto the controlling PC. It is only intended to act as a temporary solution for testing the modules or for demo purposes until the end users own application is complete. Press F2 to bring up the settings screen of the program. Select the COM port number and the baud rate. Then select the appropriate radio button so identify the format. This will normally be HR for two byte output or HR c/w signal strength for 4 byte output format. Now press F5 to start the program and if the laser is outputting data, it will be converted and displayed in ASCII decimetres (dm).


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4 ILM Electrical Connections RS232 All of the modules are supplied as standard with a 2 metre long power/data cable. At the output end of this cable is a 9-pin, D-type connector and 3 short wires. The D-type connector is used for the serial RS232 data output which is common to all ILM-type devices. The D-type connector pin definition is described by:

Pin 2 transmits data from the laser to the external interface.

Pin 3 returns data into the laser.

Pin 5 is common Ground. No other pins in the D-type connector are connected. The three short wires are coded as follows:

Black wire is connected to Pin 5 on the D-type and forms the common ground to the system. This is where ground is input (0 volts) to the system from the customers external low voltage power supply.

Red wire is used to provide positive DC power to the laser units. This must be in the range of 9 to 24 Volts on our standard unit systems.

Orange wire is used as the digital output (event trigger) from the system. When required, this wire should be connected through a 10 kOhm resistor to the supply voltage (or separate power supply with common ground to the supply voltage), as illustrated in Figure 3 below. The laser will output its digital signal by changing the voltage at the output of the orange wire between 0 and the supply voltage. This digital signal has many uses and is most common as an event trigger device such as precise detection for camera triggering and intruder detection for example.

Figure 3: D-type connector connections The connector to the rear of the ILM casing may have one of two suppliers:

1 Fischer part number: DBEE 102A054-130 2 ODU part number: G40F1C-P05LFD0-000

The mating connector upon the 2 metre interface data cable is described be either:

1 Fischer part number: SE 102A054-130/4.15 2 ODU part number: S40F1S-P05MFD0-40GS

10k Ohm

Trigger out

0 v

+ve

Supply

9 pin

D-Type

(fitted by end user)


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The pin-out description is described in Figure 4:

Figure 4: Fischer/ODU pin-out description

If you remove the 9 Way D-type connector from the end of the supplied cable to add your own custom connector, the following wire colours will be exposed and their functions are detailed below:

Core Colour Function

Black Data out of laser (RS232)

Red Data in to laser (RS232)

Green 0 volts, ground

Blue Positive supply input (+ve)

Yellow Trigger line for laser

White Not used

Table 1: D-type connector wiring designation

Custom cable lengths are also available; please contact MDL sales staff with your requirements or to check current stock.


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5 ILM Laser Safety Information In terms of laser safety information and requirements, there are two optional models to select from as listed below

1. ILM-35-R/-D/-T/-S; ILM-150-R/-D/-T/-S; ILM-500-R/-D/-T/-S

2. ILM-35-RP/-DP/-TP/-SP; ILM-150-RP/-DP/-TP/-SP; ILM-500-RP/-DP/-TP/-SP

In either case, the infrared radiation source is pulsed whereas the optional collinear visible laser source, denoted by the additional P suffix, is continuous wave (CW). Upon unit switch-on, pulsed infrared radiation is automatically emitted once the start-up routine has completed, and data is transmitted from the unit. The visible radiation source, or red dot pointer (RDP), may be switched on or off by the user, where independent of its employment the infrared (measurement) radiation pulses continue to fire - there is combined visible and invisible radiation exposure! Eye safety classification, laser precautions and hazard control measures and recommendations are defined in the following sections. ILM-35-R/-D/-T/-S & ILM-150-R/-D/-T/-S Laser Classification: The ILM-35-R/-D/-T/-S and ILM-150-R/-D/-T/-S modules are classified as a Class 1 laser products and fully comply with the International and European standard IEC/EN 60825-1 (2001/7) for which no laser labels are required to be placed upon the modules. These products are both naked eye safe and eye safe with the use of optical instruments such as telescopes or binoculars. ILM-35-RP/-DP/-TP/-SP & ILM-150-RP/-DP/-TP/-SP Laser Classification: The ILM-35-RP/DP/-TP/-SP and ILM-150-RP/DP/-TP-SP modules are classified as Class 2 laser products and fully comply with the International and European standard IEC/EN 60825-1 (2001/7) for which the following mandatory labels are placed upon the units external casing. The labels are legible and should be made clearly visible, facing the user during operation, maintenance and service: ILM-35-RP; ILM-150-RP:


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ILM-35-DP/-TP/-SP; ILM-150-DP/-TP/-SP:

ILM-500-R/-D/-T/-S Laser Classification: The ILM-500-R/-D/-T/-S modules are classified as a Class 1 laser products and fully comply with the International and European standard IEC/EN 60825-1 (2001/7) for which no laser labels are required to be placed upon the modules. These products are both naked eye safe and eye safe with the use of optical instruments such as telescopes or binoculars. ILM-500-RP/-DP/-TP/-SP Laser Classification: The ILM-500-RP/-DP/-TP/-SP modules are classified as Class 2 laser products and fully comply with the International and European standard IEC/EN 60825-1 (2001/7) for which the following mandatory labels are placed upon the units external casing. The labels are legible and should be made clearly visible, facing the user during operation, maintenance and service: ILM-500-RP: ILM-500-DP/-TP/-SP:

All standard P-suffix denoted products, i.e. red dot pointer included products, are safe for brief, accidental viewing (< 0.25 seconds) with the naked eye as protection is normally afforded by aversion responses, including blink reflex, but is not safe for deliberate, long-term viewing. All products are intended for use in a locale where the emitted radiation is unlikely to be viewed with optical instruments.


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Nevertheless, MDL recommends that none of these instruments are directly pointed at persons eyes, nor viewed with optical instruments. Aligning any of the ILM product devices with the lenses of CCD-cameras or infrared night vision devices may result in damage to such devices and is therefore not permitted.

Caution use of controls or adjustments or performance of procedures other that those specified herein may result in hazardous radiation exposure. Never open the instruments housing! Do not operate evidently damaged instruments! If the instrument is handled incompetently, the manufacturers absolve themselves from honouring any guarantee or insurance whatsoever. No responsibility is assumed by MDL for the devices use.

CAUTION - DO NOT UNNECESSARILY LOOK INTO THE TRANSMITTER LENS OF THE ILM-35-R/-RP/-D/-DP/-T/-TP/-S/-SP, ILM-150-R/-RP/-D/-DP/-T/-TP/-S/-SP or ILM-500-R/-RP/-D/-DP/-T/-TP/-S/-SP LASER MODULES. CAUTION LASER LIGHT IS BRIGHT AND BLINDING DO NOT SHINE AT AIRCRAFT OR VEHICLES AT ANY DISTANCE

WARNING Opening the protective housing may result in exposure to Class 3B

radiation.

This caution label is normally positioned inside the outer housing on the cover of

the laser emitter mount for all product variants. It is therefore only visible by

qualified maintenance engineers prior and after access to the laser emitter. Due

to size restriction considerations of this module, the label is supplied separately

and it is advised that the label is wrapped around the supply leads. Only qualified

and trained persons should be assigned to operate ILM-35-R/-RP/-D/-DP/-T/-TP/-S/-

SP, ILM-150-R/-RP/-D/-DP/-T/-TP/-S/-SP or ILM-500-R/-RP/-D/-DP/-T/-TP/-S/-SP

laser modules. When not in use, the device should be stored in a location where

unauthorized personnel cannot gain access.

MDL recommends that the instrument is not directly pointed at peoples eyes,

especially if they are using binoculars. Do not unnecessarily look into the transmitter

lens of the ILM-35-R/-RP/-D/-DP/-T/-TP/-S/-SP, ILM-150-R/-RP/-D/-DP/-T/-TP/-S/-

SP or ILM-500-R/-RP/-D/-DP/-T/-TP/-S/-SP laser modules.

The turning on or off of any of the lasers can be done via software control through the serial data communication port. Laser eye- safety limits, i.e. the maximum energy per pulse for the specified laser pulse train, is calculated based upon three design criteria source size, optical design and pulse count (frequency of operation). Each may be varied during the manufacturing selection criteria to maximise the performance of the ILM device for the specific application. In terms of range


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performance, the greater the laser pulse energy, the longer the range the pulse may travel and be reflected back with enough energy that the detector can see the return. Laser device classification and performance is also limited by the number of pulses requirement, hence the greater the number of laser pulses, the lower the energy per pulse has to be. One final consideration is the diameter of the (transmit) laser optic/beam-size. The human eye typically has a pupil size of 7 mm during normal, daylight conditions. If the beam diameter of the laser is larger than the pupil size, then it is not possible for all of the energy to enter the eye at one time, unless aided by optical instrumentation, e.g. binoculars, telescope, theodolite. Hence the beam diameter also can be used to define the eye safety of the lasers and so as a general rule of thumb, the longer the range required from the unit, the larger the beam diameter and hence the larger the physical size of the specified unit.


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6. ILM Technical Specification The ILM-35-XX standard product portfolio was designed as a reduced range yet higher accuracy option variant of the ILM-150-XX unit. The improved performance at shorter ranges signifies a more suitable unit for applications where targets are of relatively low reflectivity and in close proximity to the device location. The range capability of this unit is therefore less than the original ILM-150-XX unit, making it customer specific to passive targets to ranges of 35 metres or less.

ILM-35-R ILM-35-D/S/T ILM-35-RP ILM-35-DP/-TP/-SP

Infrared Laser Module

Type InGaAs laser diode InGaAs laser diode InGaAs laser diode InGaAs laser diode

Wavelength 905 nm (typ) 905 nm (typ) 905 nm (typ) 905 nm (typ)

Max. Energy per Pulse 504 nJ/pulse 340 nJ/pulse 504 nJ/pulse 340 nJ/pulse

Beam Divergence 2.76 x 0.18 mrads 2.76 x 0.18 mrads 2.76 x 0.18 mrads 2.76 x 0.18 mrads

Passive Range 0.5 m to 35 m 0.5 m to 35 m 0.5 m to 35 m 0.5 m to 35 m

Accuracy +/ - 5 cm (typ) +/ - 10 cm (typ) +/ - 5 cm (typ) +/ - 10 cm (typ)

Max. Repetition Rate 200 Hz 1000 Hz 200 Hz 1000 Hz

Lens Aperture Size and Location

18.0 mm. Location at front of module.




Visible Laser Module Type N/A N/A INGaAsP laser diode InGaAsP laser diode Wavelength N/A N/A 635 nm (typ) 635 nm (typ) Maximum Power N/A N/A < 0.6 mW (CW) < 0.6 mW (CW) Lens Aperture Size and Location N/A N/A

3 mm. Location at front of module


Laser Classification (IEC/EN 60825-1 (2001/07)

Class 1 Class 1 Class 2 Class 2


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Communication Data Output Serial RS232 at 9600 baud Serial RS232 at 38400 baud Serial RS232 at 9600 baud Serial RS232 at 38400 baud

Connection

Case connector Via 5 way WW.Fischer or

ODU Connector (DBEE 102 A054 130)

Via 5 way WW.Fischer or ODU Connector

(DBEE 102 A054 130)



(DBEE 102 A054 130) Cable connector

Cable Connector (SE 102 A054 130 / 4.15)


Cable Connector (SE 102 A054 130 / 4.15


Power 9 to 24 volts DC


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The ILM-150-XX standard product portfolio was designed as the original class 1 eye-safe, rugged, multipurpose laser distance meters for integration into OEM applications, suitable for most short to medium range applications with a specified maximum reflectorless range up to 150 metres. All ILM modules may be configured to output distance measurement (range) or speed, and may also be set to trigger for presence detection.





















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ILM-150-R ILM-150-D/S/T ILM-150-RP ILM-150-DP/-TP/-SP Communication Data Output Serial RS232 at 9600 baud Serial RS232 at 38400 baud Serial RS232 at 9600 baud Serial RS232 at 38400 baud

Connection

Case connector Via 5 way WW.Fischer or



(DBEE 102 A054 130)



(DBEE 102 A054 130) Cable connector







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The ILM-500-XX standard product portfolio was designed as a longer range variant of the ILM-150-XX unit. Unit accuracy is retained with improved maximum reflectorless range up to 500 metres.



















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Communication Data Output Serial RS232 at 9600 baud Serial RS232 at 38400 baud Serial RS232 at 9600 baud Serial RS232 at 38400 baud

Connection Via 5 way WW.Fischer or



(DBEE 102 A054 130)



(DBEE 102 A054 130) Cable Connector (SE 102 A054 130 / 4.15)






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The beam diameter, beam width or spot size of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be defined in many different ways. One such definition of spot size in common use is FWHM. The American National Standard Z136.1-2007 for Safe Use of Lasers defines the beam diameter as the distance between diametrically opposed points in that cross-section of a beam where the power per unit area is half (0.5) times that of the peak power per unit area. The calculated spot size of beam irradiance for the standard ILM-35-XX, ILM-150-XX and ILM-500-XX standard product modules is calculated for the given distance range value, in metres, below -

Range /(m) ILM-35 (FWHM) /

(mm) Range / (m)

ILM-150 (FWHM) / (mm)

Range / (m) ILM-500 (FWHM) /

(mm) 0 18.0 x 18.0 0

18.0 x 18.0 0

28.0 x 28.0

3 18.6 x 26.3 10 19.9 x 45.8 50 1

35.5 x 140.5 6

19.1 x 34.7 20 21.7 x 73.6 100

43.0 x 253.0

9 19.7 x 43.0 30 23.6 x 101.3 150

50.5 x 365.5 12 20.2 x 51.3 40 25.4 x 129.1 200

58.0 x 478.0

15 20.8 x 59.7 50 27.3 x 156.9 250

65.5 x 590.5

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21.3 x 68.0 60 29.1 x 184.7 300

73.0 x 703.0

21 21.9 x 76.3 70 31.0 x 212.4 350

80.5 x 815.5 24 22.4 x 84.7 80 32.8 x 240.0 400

88.0 x 928.0

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23.0 x 93.0 90 34.7 x 268.0 450 50

95.5 x 1040.5 30

23.6 x 101.3 100 36.5 x 295.8 500

103.0 x 1152.5

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24.1 x 109.7 110 38.4 x 323.6 -

- 35

24.5 x 115.2 120 40.2 x 351.3 -

- -

- -

-

130 42.1 x 379.1 -

- -

-

140 43.9 x 406.9 -

- - -

150 45.8 x 434.7 -

-

Table 5: Theoretical beam irradiance spot size for standard ILM-35-XX, ILM-150-XX and ILM-150-XX units


7. Mounting Details

Figure 5: ILM-35/-150-XX dimension specification.


igure 5: ILM-35 (150)-XX dimension specification.

Figure 6: ILM-500-XX dimension specification.


8 Declaration of Conformity

The ILM product portfolio shall meet or exceed the requirements of the following European & International Standards:

BS EN 61326-1:2006 Electrical equipment for measurement, control and laboratory use EMC requirements Part 1: General requirements The tests were carried out in compliance with:

Immunity to Table 1 General

Emissions to Class A Integrated locations

IEC/EN 60825-1: (2001/2007) Safety of laser products - Part 1: Equipment classification,

requirements and user guide

The tests are carried out in compliance with:

Integrated Laser Module 35-X (ILM-35-R/-D/-T/-S): Meets the requirement for a Class

1 laser product under normal operating conditions and those of single fault failure.

Integrated Laser Module 150-X (ILM-150-R/-D/-T/-S): Meets the requirement for a

Class 1 laser product under normal operating conditions and those of single fault

failure.

Integrated Laser Module 500-X (ILM-500-R/-D/-T/-S): Meets the requirement for a

Class 1 laser product under normal operating conditions and those of single fault

failure.

Integrated Laser Module 35-XP (ILM-35-RP/-DP/-TP/-SP): Meets the requirement

for a Class 1 laser product under normal operating conditions and those of single

fault failure.



fault failure.



fault failure.

The ILM product portfolio therefore complies with the following European Directives-

1. EMC Directive 2004/108/EC

2. Low Voltage Directive 2006/95/EC

It is declared that the equipment named has been designed to comply with the relevant

sections of the referenced specifications and is in accordance with the requirements of the

Directive(s).

im-018 combine ilm operators manual

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