ultima with digital output gas monitor -...

Ultima® with DigitalOutput Gas Monitor

instruction manual

� WARNING

THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHOHAVE OR WILL HAVE THE RESPONSIBILITY FOR USING OR SERVICING THEPRODUCT. Like any piece of complex equipment, the unit will perform asdesigned only if it is installed, used and serviced in accordance with themanufacturer’s instructions. OTHERWISE IT COULD FAIL TO PERFORM ASDESIGNED AND PERSONS WHO RELY ON THIS PRODUCT FOR THEIRSAFETY COULD SUSTAIN SEVERE PERSONAL INJURY OR DEATH.

The warranties made by Mine Safety Appliances Company with respect to theproduct are voided if the product is not used and serviced in accordance withthe instructions in this manual. Please protect yourself and others by followingthem. We encourage our customers to write or call regarding this equipmentprior to use or for any additional information relative to use or repairs.

In the U.S., to contact your nearest stocking location, dial toll-free 1-800-MSA-INST.To contact MSA International, dial 1-412-967-3354.

© COPYRIGHT MINE SAFETY APPLIANCES COMPANY 2003 - All Rights Reserved

This manual is available on the internet at www.msanet.com

Manufactured by

MSA INSTRUMENT DIVISIONP.O. Box 427, Pittsburgh, Pennsylvania 15230

(L) Rev 3 710471

MSA Permanent Instrument Warranty1. Warranty- Seller warrants that this product will be free

from mechanical defect or faulty workmanship for a periodof eighteen (18) months from date of shipment or one (1)year from installation, whichever occurs first, provided it ismaintained and used in accordance with Seller’sinstructions and/or recommendations. This warranty doesnot apply to expendable or consumable parts whosenormal life expectancy is less than one (1) year such as,but not limited to, non-rechargeable batteries, filamentunits, filter, lamps, fuses etc. The Seller shall be releasedfrom all obligations under this warranty in the eventrepairs or modifications are made by persons other thanits own or authorized service personnel or if the warrantyclaim results from physical abuse or misuse of theproduct. No agent, employee or representative of theSeller has any authority to bind the Seller to anyaffirmation, representation or warranty concerning theproduct. Seller makes no warranty concerningcomponents or accessories not manufactured by theSeller, but will pass on to the Purchaser all warranties ofmanufacturers of such components. THIS WARRANTY ISIN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,IMPLIED OR STATUTORY, AND IS STRICTLY LIMITEDTO THE TERMS HEREOF. SELLER SPECIFICALLYDISCLAIMS ANY WARRANTY OF MERCHANTABILITYOR OF FITNESS FOR A PARTICULAR PURPOSE.

2. Exclusive Remedy- It is expressly agreed that Purchaser’ssole and exclusive remedy for breach of the abovewarranty, for any tortious conduct of Seller, or for anyother cause of action, shall be the repair and/orreplacement at Seller’s option, of any equipment or partsthereof, which after examination by Seller is proven to bedefective. Replacement equipment and/or parts will beprovided at no cost to Purchaser, F.O.B. Seller’s Plant.Failure of Seller to successfully repair any nonconformingproduct shall not cause the remedy established hereby tofail of its essential purpose.

3. Exclusion of Consequential Damage- Purchaserspecifically understands and agrees that under nocircumstances will seller be liable to purchaser foreconomic, special, incidental or consequential damagesor losses of any kind whatsoever, including but not limitedto, loss of anticipated profits and any other loss caused byreason of nonoperation of the goods. This exclusion isapplicable to claims for breach of warranty, tortiousconduct or any other cause of action against seller.

General Warnings and Cautions

�WARNINGS 1. The Ultima with Digital Output Gas Monitor described in

this manual must be installed, operated and maintained instrict accordance with its labels, cautions, warnings,instructions, and within the limitations stated.

2. Keep cover tightly closed when power is applied on anexplosion-proof model; otherwise, ignition of a hazardousatmosphere can occur. Before removing the cover formaintenance or calibration, ensure the surroundingatmosphere is and remains free of toxic or combustiblegases until the cover is closed.

3. The Ultima with Digital Output Gas Monitor is designed todetect gases or vapors in air. It cannot measure theconcentration of gases or vapors in steam or inert oroxygen-deficient atmospheres. The oxygen sensor canmeasure oxygen-deficient atmospheres.

4. Electrochemical sensors are sealed units which contain acorrosive electrolyte. Should a sensor develop leakage, itmust be immediately removed from service; then, remove itfrom the sensing head and discard it properly. Caution mustbe exercised so that the electrolyte does not contact skin,eyes, clothing or circuitry; otherwise, serious personal injury(burns) and/or equipment damage may result.

5. Use only genuine MSA replacement parts whenperforming any maintenance procedures provided in thismanual. Failure to do so may seriously impair instrumentperformance. Repair or alteration of the Ultima with DigitalOutput Gas Monitor, beyond the scope of thesemaintenance instructions or by anyone other than aauthorized MSA service personnel, could cause theproduct to fail to perform as designed and persons whorely on this product for their safety could sustain seriouspersonal injury or death.

6. Do not locate the general-purpose enclosure models in anarea which may contain a flammable mixture of gas andair; otherwise, an explosion may occur. Thegeneral-purpose Ultima with Digital Output Gas Monitorscan be a source of ignition and must not be mounted in anarea where a flammable mixture of combustible gas and

air may be present; otherwise, an explosion may occur. Ifsuch a location must be monitored, use an explosion-proofUltima with Digital Output Gas Monitor model.

7. The Ultima with Digital Output Gas Monitor is designed tobe connected to and operate within a LonWorks®

Network. The monitor is incompatible and will not workwith other types of networks.

8. For proper operation, the Ultima with Digital Output GasMonitor must be installed and configured properly.There are third party installation and configurationtools available.

9. This device contains transmitter module FCCID:OUR9XSTREAM. The enclosed device complies withPart 15 of the FCC Rules. Operation is subject to thefollowing conditions: (1) This device may not causeharmful interference, and (2) this device must accept anyinterference received, including interference that maycause undesired operation.In order to comply with the FCC RF exposure requirements,this unit may be used only with Approved Antennas thathave been tested with this radio. A minimum separationdistance of 20 cm must be maintained from the antenna toany nearby persons. Changes or modifications to theradio or antenna could void the user’s authority to operatethis product.

Failure to follow the above can result in serious personal injuryor death.

� CAUTIONS 1. As with all gas monitors of these types, high levels of, or

long exposure to, certain compounds in the testedatmosphere could contaminate the sensors. Inatmospheres where an Ultima with Digital Output GasMonitor may be exposed to such materials, calibrationshould be performed frequently to ensure that operation isdependable and display indications are accurate.

2. The Ultima with Digital Output Gas Monitor must not bepainted. If painting in an area where a Monitor is located,ensure that paint is not deposited on the sintered, metalflashback arrestor in the inlet fitting of the Ultima withDigital Output Gas Monitor, if so equipped. Such paintdeposits would interfere with the diffusion process,

whereby a sample of the atmosphere being monitoreddiffuses into the Monitor.

3. The only absolute method to ensure proper overalloperation of an Ultima with Digital Output Gas Monitor isto check it with a known concentration of the gas for whichit has been calibrated. Consequently, calibration checksmust be included as part of the routine inspection of thesystem.

4. Protect the Ultima with Digital Output Gas Monitor fromextreme vibration. Do not mount the sensing head indirect sunlight as this may cause overheating ofthe sensor.

Failure to follow the above can result in serious personal injuryor death.

Table of Contents

Chapter 1General Description . . . . . . . . . . . . . . . . . . . . . . . . . 1-1General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Unpacking Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Identifying Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2If Unit to be used with the Optional Ultima Duct Mount Kit . . . . . . . . . . . . 1-3

If Unit Powered with the Optional Power Supply Module . . . . . . . . . . . . . 1-3

To Determine Your Sensor Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Hazardous Area Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Chapter 2Network and Ultima with Digital Output Gas Monitor Variables . . . . . . . . . . 2-1General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Ultima with Digital Output Gas Monitor Configuration . . . . . . . . . . . . . . . . 2-1Types of Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Ultima with Digital Output Gas Monitor Network Variables . . . . . . . . . . . . 2-2Node Object (Type 0) Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Table 2-1. Object (Type 0) Variables . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Variable #1 - nviRequest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Variable #2 - nvoStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Variable #3 - nciNetConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Variable #4 - nciMaxStsSendT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Variable #5 - nviTimeSet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Open Loop Sensor Object (Type 1) Variables . . . . . . . . . . . . . . . . . . . . . 2-5Table 2-2. Open Loop Object (Type 1) Variables . . . . . . . . . . . . . . . . 2-5

Variable #1 - nvoValue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Variable #2 - nvoRawHwData . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Variable #3 - nciMinDelta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Variable #4 - nciMaxSendT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Table of Contents

TOC-1

Variable #5 - nciMinSendT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Ultima with Digital Output Gas Monitor’s Variables . . . . . . . . . . . . . . . . . 2-6Table 2-3. Variable Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Chapter 3Installation and Start-up . . . . . . . . . . . . . . . . . . . . . 3-1Mounting Your Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Electrical Connections for Ultima with Digital Output Gas Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1General Wiring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

� WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2� WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

�WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-1. Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-2. Maximum Separation Distance . . . . . . . . . . . . . . . . . . . . . . 3-3

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3� WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Table 3-3. Wire Harness Assembly (Wired Units) . . . . . . . . . . . . . . . . 3-4

Table 3-4. Wire Harness Assembly (Wireless Units) . . . . . . . . . . . . . . 3-4

Figure 3-1. Wire Harness Assembly (Wired Unit Shown) . . . . . . . . . 3-4

� WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Wiring the Ultima with Digital Output Gas Monitor Without Using the Wiring Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Table 3-5. Lower Printed Circuit Board TB1 Connections (Wired Units) . 3-5

Table 3-6. Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Table 3-7. Lower Printed circuit board connections (Wireless) . . . . . . 3-6

Figure 3-2. Bottom Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-3. Routing the Antenna Cable . . . . . . . . . . . . . . . . . . . . . . . . 3-6Figure 3-4. Communication Wiring Connections . . . . . . . . . . . . . . . . 3-7

Electrical Connections for the Ultima with Digital Output Gas Monitor Re-mote Sensor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

�WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

�WARNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Electric Connections for Combustible Models . . . . . . . . . . . . . . . . . . . . . 3-8

Table of Contents

TOC-2

Start-up of the Ultima with Digital Output Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Applying Power to the Ultima with Digital Output Gas Monitor . . . . . . . . . 3-9Calibrating the Ultima with Digital Output Gas Monitor . . . . . . . . . . . . . . . 3-9Ultima with Digital Output Gas Monitor Configuration . . . . . . . . . . . . . . . . 3-9Network Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Setting the Wireless Channel for Ultima Units . . . . . . . . . . . . . . . . . . . . . . 3-9

Table 3-8. Wireless Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 3-5. Routing the Antenna Cable . . . . . . . . . . . . . . . . . . . . . . . 3-10

Chapter 4Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Obtaining Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

�WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Table 4-1. Replacement Sensor Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Ultima RF Digital Network Module Antenna Replacement . . . . . . . . . . 4-3

Table of Contents

TOC-3

Chapter 1General Description

GeneralThe Ultima with Digital Output Gas Monitor is designed toconnect to an integrated system of wired/wireless, compatiblenetwork devices.

NOTE: The Ultima with Digital Output Gas Monitor can only beused with a LonWorks network.

You must be familiar with the Chapter 2 network parameters ifyou intend to use the Ultima with Digital Output Gas Monitor:

• in your own LonWorks network or• in a setup other than the Ultima with Digital Output Gas Monitor

default setup.

The Ultima with Digital Output Gas Monitor provides long-distanceinterconnect ability for:

• many Ultima with Digital Output Gas Monitors • other network compatible devices.

This Manual• is to be used with (and often refers to) the Ultima Gas Monitor

Instruction Manual (P/N 813161).• contains a brief description of network variables for the Ultima

with Digital Output Gas Monitor; for a more completedescription of the entire network, refer to the system ornetwork manual.

Unpacking Your UnitUpon receipt, ensure that your package contains:

• One Ultima Gas Monitor Instruction Manual (P/N 813161)in addition to this manual (P/N 710471)

• One Ultima Gas Monitor (see Ultima Gas Monitor manual FIGURE 1-1)

• One Ultima Remote Sensor Module; if equipped as a dual-condulet model, see Ultima Gas Monitor manual FIGURE 1-2.

Chapter 1, General Description

1-1

General DescriptionThe Ultima with Digital Output Gas Monitor is designed to samplethe environment (where mounted) and alert you to potentiallydangerous levels of one of the following gases, depending onyour particular model:

• Combustible gas • Hydrogen Cyanide

• Oxygen • Hydrogen Chloride

• Carbon Monoxide • Nitric Oxide

• Hydrogen Sulfide • Nitrogen Dioxide• Chlorine • Sulfur Dioxide

The unit is shipped ready for installation with an external wiringharness to be connected to power and/or to the network. Thiswiring harness eliminates the need to open the enclosure forinstallation or operation.

Identifying Your UnitThere are five wired versions of the Ultima with Digital OutputGas Monitor, all housed in rugged, aluminum enclosuresdesigned to meet NEMA 4X standards. There are three wirelessversions of the Ultima with Digital Output Gas Monitor, housed ina 316 Stainless Steel enclosure designed to meetgeneral-purpose applications. Be sure to install the properly-ratedunit in any classified or certified area:

• Five versions are available in GENERAL-PURPOSE housings (see Ultima Gas Monitor manual FIGURE 1-1):

• Toxic Gases (Wired units)• Oxygen (Wired units)• Combustible (Wireless units)• Toxic (Wireless units)• Oxygen (Wireless units).

• Three versions are available in EXPLOSION-PROOF housingscertified for Classification I, Groups B, C and D, Division 1,Hazardous Locations:

• Combustible Gas (Wired units)(see Ultima Gas Monitor manual FIGURE 1-3)

• Certain Toxic Gases (Wired units)(see Ultima Gas Monitor manual FIGURE 1-4)

• Oxygen (Wired units)(see Ultima Gas Monitor manual FIGURE 1-4)


1-2

• All five versions are available as dual condulet models (see Ultima Gas Monitor manual FIGURE 1-2)

If Unit to be used with the Optional Ultima Duct Mount Kit• refer to Ultima Gas Monitor manual Appendix A.

If Unit Powered with the Optional Power Supply Module• refer to Ultima Gas Monitor manual Appendix B.

To Determine Your Sensor Type• Check the shipping carton

(see Ultima Gas Monitor manual FIGURE 1-5) or• Check the sensor ID label located on the sensor cover or on the

condulet enclosure body (see Ultima Gas Monitor manualFIGURE 1-6). This label identifies:

• Sensor supplied:• Ultima Gas Monitor• Ultima Gas Monitor Less Sensor or • Ultima Remote Sensing Module.

• Type of gas:• combustible gas• toxic gas or • oxygen.

• Range:• % LEL• PPM (parts per million) or • %.

• Output: • frequency• multiplex• digital• 4 to 20 mA or • wireless.

Hazardous Area RatingNOTE: Some models of the Ultima with Digital Output Gas

Monitor can be used in hazardous atmosphereswhen installed according to the National ElectricCode, for Classification I, Groups B, C and D,Division 1, Hazardous Locations. The larger metal


1-3

Approval Label on the main enclosure body (seeUltima Gas Monitor manual FIGURE 1-7) indicates ifyour model is approved for use in hazardous areas.


1-4

Chapter 2Network and Ultima with DigitalOutput Gas Monitor Variables

GeneralThis chapter provides a more in-depth description of networkoperation and setup of the Ultima with Digital Output GasMonitor. If you are using the default values and connecting themonitor to a standard network, skip this chapter and proceed toChapter 3, "Installation and Start-up."

Network ConfigurationThe network can be an open-standard wiring architecturetype. Each Ultima with Digital Output Gas Monitor is considered anode on the network with communication between nodes at areliable, efficient (78KB/s Wired and 19.5KB/s Wireless) rate. Inpeer-to-peer communications:

• each node can communicate with every other network node• no central, expensive supervisory controllers or computers

are needed.

Network protocol is embedded in each Ultima with Digital OutputGas Monitor’s firmware for completely transparent operation. Theprotocol:

• manages the internal communication within the monitor• constructs and delivers all network communication.

To help network communications, each Ultima with Digital OutputGas Monitor has data collision detection andavoidance algorithms built-in to ensure the most reliable gasmonitor communication.

Ultima with Digital OutputGas Monitor ConfigurationEvery Ultima with Digital Output Gas Monitor sends and receivesdigital data in the form of network variables. These variablescorrespond to real-world physical quantities such as:

• gas concentrations

Chapter 2, Ultima with Digital Output Gas Monitor

2-1

• alarm levels• auto-calibrations• other information can be viewed from a central monitoring

device, such as a personal computer:• minimum

• maximum• average• date of last calibration.

Types of Variables• Gas concentrations are outputs-only.• Time-setting variable is an input for setting via the network.• Object (Type 0) Variables control the network interface for the

Ultima with Digital Output Gas Monitor.• All variables (except configuration, output and network-specific

variables) can be changed by the Ultima Gas MonitorController; see manual (P/N 813379) for more details.

Ultima with Digital Output Gas MonitorNetwork VariablesAll variables can be polled, and those labeled as inputs can bewritten by the network. Per Interoperability Guidelines, thenetwork interface incorporates:

• Mandatory Node Object Variables• Mandatory Open Loop Sensor Object Variables

All variables are associated with one of these two objects andare classified as either:

• configuration type variables or • non-configuration type variables.

In addition to the mandatory network variables, anon-interoperability interface is included, utilizing both StandardNetwork Variable Types (SNVT’s) and non-SNVT structures tosatisfy additional requirements. These variables are listed inTABLE 2-3.

Node Object (Type 0) VariablesThe network can monitor these functions within the node orsensor to be monitored.


2-2

For initial implementation of the Ultima with Digital Output GasMonitor, only mandatory variables and certain optional variablesmust be configured.

Unsupported status bits are to be marked in the status mask asdescribed in the following:

Table 2-1. Object (Type 0) Variables

VARI- ABLE

#VARIABLE

NAME I/O FORMAT SNVT# TYPE COMMENTS

1 nviRequest I SNVT_obj_request 92 MAND*

Used to requestobject modes Only RQ_NORMAL,RQ_UPDATE_STATUSandRQ_REPORT_MASK supported.

2 nvoStatus O SNVT_obj_status 93 MAND*Used to indicatestatus of variousnode objects.

3 nciNetConfig I SNVT_config_src 69 CFG* installation property

4 nciMaxStsSendT I SNVT_elapsed_tm 87 CFG*

object statusmaximum timebefore object statusis output. Can beused for heartbeat.Default = 0 (disable).

5 nviTimeSet I SNVT_time_stamp 84 CFG* Set Ultima clock

*Mand = Mandatory variable*Cfg = Configured variable

Variable #1 - nviRequest

This input structure (SNVT #92) to the node/sensor is used torequest a mode for an object within the node.

Valid requests include:

• an ID to identify the object• a mode command.

Valid mode commands for the node object are:

• RQ_NORMAL to enable the object and report object status• RQ_UPDATE_STATUS to report object status only• RQ_REPORT_MASK to report the supported bits in the object

status variable structure.


2-3

Unsupported requests to the sensor node return: invalid_request status.

Variable #2 - nvoStatus

This structure (SNVT #93) is used to report the status for anyobject on a node. A report mask request causes this variable tobe output with a mask indicating which bits that are valid in theobject status structure.

Valid bits in the Node Object (type 0) Status for the nodeobject are:

• invalid_id and invalid_request bits (mandatory)• open_circuit (no response)• out_of_service (nak, busy)• comm_failure (network).

All other bits are disabled for the node object.

Variable #3 - nciNetConfig

This input configuration variable (SNVT #69) to the node/sensoris used to determine if the node/sensor will be self-installing orinstalled with an external network manager.

• Default value is cfg_external.

Variable #4 - nciMaxStsSendT

This configuration property is used to control the maximum timeperiod that expires before the node automatically transmits thecurrent value of the nvoStatus output network variable. Thisprovides a heartbeat output to indicate the node is still healthy.The status of each object in the node/sensor is returnedsequentially in round-robin fashion (one object status perexpiration of the timer).

• This output may be disabled by setting all fields to zero.• Default value is 0.

Variable #5 - nviTimeSet

This is an input structure (SNVT #84) to the node/sensor tosynchronize the node/sensor internal real-time clock to anexternal system clock.


2-4

Open Loop Sensor Object (Type 1) VariablesThese variables supply Ultima with Digital Output Gas Monitorstatus information to the network. Additional information for thesensor object may be obtained by an nviRequest for object ID#1. Valid requests for the sensor object are:

• RQ_NORMAL• RQ_UPDATE_STATUS• RQ_REPORT_MASK.

A report mask request causes the nvoStatus variable to beoutput with a mask indicating which bits are valid in the SensorObject Status structure. Valid bits in the Ultima Sensor ObjectStatus are:

• invalid_id and invalid_request bits (mandatory)• open_circuit (no sensor)• out_of_service (cal,error status from sensor)• over_range• under_range.

All other bits are disabled.

Table 2-2. Open Loop Object (Type 1) Variables

VARIABLE#

VARIABLENAME I/O FORMAT SNVT # TYPE COMMENTS

1 nvoValue O SNVT_count_f 51 MAND*Output sensorvalue in ppm orpercent.

2 nvoRawHwData O SNVT_count 8 OPT raw a/d count

3 nciMinDelta I SNVT_count_f 51 CFG*minimum changerequired for dataoutput

4 nciMaxSendT I SNVT_elapsed_tm 87 CFG*

maximum sendtime for variables1 & 4 can beused for heartbeat.Default =55 seconds.

5 nciMinSendT I SNVT_elapsed_tm 87 CFG*

minimum timebefore variables 1& 4 can be output.Default =100 msec (Wired)7 seconds (Wireless)

*Mand = Mandatory variable*Cfg = Configured variable


2-5

Variable #1 - nvoValue

This is the Ultima with Digital Output Gas Monitor main outputvariable. The counts using SNVT_count_f are from -1E38 to 1E38.

Variable #2 - nvoRawHwData

This is the Ultima with Digital Output Gas Monitor raw A/D outputcount.

Variable #3 - nciMinDelta

This is the Ultima with Digital Output Gas Monitor minimumchange in output values required before output variables areautomatically propagated to the network.

• The default is 0.

Variable #4 - nciMaxSendT

This variable controls the maximum period of time requiredbefore the node/sensor automatically transmits the current valueof the nvoValue and nvoRawHwData output network variables.This provides an output to indicate the node/sensor is stilloperating. This output can be disabled by setting all fields to zero.

• Default is 0.

Variable #5 - nciMinSendT

This variable controls the minimum period of time required beforethe node/sensor can automatically re-transmit the current value ofthe nvoValue and nvoRawHwData output network variables whenchanges are detected. This determines the maximum update ratefor the network variables.

• Default is 50 milliseconds (Wired)• Default is 10 seconds (Wireless).

Ultima with Digital Output Gas Monitor’s VariablesThese variables supply the Ultima with Digital Output GasMonitor’s additional node object variables to provide control toand output from the Ultima Gas Monitor.


2-6

Table 2-3. Variable Definitions

VARI-A-

BLE #

VARIABLENAME I/O FORMAT SNVT

# TYPE COMMENTS

1 nv_reset I SNVT_lev_disc 22 N/AForces Neuron SoftwareReset and sensor resetST_ON (4) = reset.

2 nv_onscreen I SNVT_lev_disc 22 N/A

Indicates this sensor isbeing monitored throughthe network. Used as asemaphore to controlnon-interoperable networkvariable updates. ST_OFF (0) = Update only alarm critical condition network variables.ST_ON (4) = Update allnetwork variables atspecified minimum sendtime rate.

3 nv_strt_cal I SNVT_lev_disc 22 N/A start calibrationST_ON (4) = start

4 nv_strt_man_ical I SNVT_lev_disc 22 N/Astart manual initialcalibrationST_ON (4) = start

5 nv_strt_i_cal I SNVT_lev_disc 22 N/A start initial calibrationST_ON (4) = start

6 nv_strt_zero I SNVT_lev_disc 22 N/A start zero sensor procedureST_ON (4) = start

7 nv_gasType O SNVT_char_ascii 7 NOTE1 Gas type

8 nvoNodeID I/O SNVT_char_ascii 7 Sensor address (1 - 255)

9 v_zero_value O SNVT_count_f 51 NOTE1

zero value-1E38..1E38 counts

10 nv_span_value I/O SNVT_count_f 51 NOTE1

span value -1E38..1E38counts

11 nv_statistics I/Ostatistic_t(non-SNVT structureddata)

NOTE1

min., max. and avg. gasreading info

11.1 nv_statistics.minimum O SNVT_count_f

NOTE1

Min. gas reading over lastavg. interval

11.2 nv_statistics.maximum O SNVT_count_f

NOTE1

Max. gas reading over lastavg. interval

11.3 nv_statistics.average O SNVT_count_f

NOTE1

Avg.e gas reading overlast avg. interval

11.4 nv_statistics.interval I/O unsigned short

NOTE1

Interval time forminimum/maximum/average period (1, 8, 24hours)

11.5 nv_statistics.interval_over O SNVT_lev_disc

NOTE1

Indicates gas reading overrange during interval timeST_OFF = falseST_ON = true


2-7


VARI-A-

BLE #


# TYPE COMMENTS

11.6 nv_statistics.interval_under O SNVT_lev_disc

Indicates gas readingunder range during intervaltimeST_OFF = falseST_ON = true

12 nv_alarm_setpt_1 I/O SNVT_count_f 51 NOTE1 Alarm #1 setpoint



15 nv_alarm_state_1 O SNVT_lev_disc 22 NOTE2

Alarm #1ST_OFF (0) = clearST_ON (4) = set





18 nviAlarmEnable1 I/O SNVT_lev_discNOTE

1alarm enable 1ST_OFF (0) = disableST_ON (4) = enable

19 nviAlarmEnable2 I/O SNVT_lev_disc NOTE1

alarm enable #2ST_OFF (0) = disableST_ON (4) = enable

20 nviAlarmEnable3 I/O SNVT_lev_discNOTE

1alarm enable #3ST_OFF (0) = disableST_ON (4) = enable

21 nviAlarmMode1 I/O SNVT_lev_discalarm latching mode 1ST_OFF (0) = non-latchingST_ON (4) = latching



24 nv_cal_proc O SNVT_lev_disc 22 NOTE2

calibration in progressST_OFF (0) =

not in progressST_ON (4) =

in progress

25 nv_op_status Oop_status_t(non-SNVTstructured data)

NOTE1 operational status

25.1 nv_op_status.error 0 SNVT_lev_discerror condition ST_OFF (0) = no errorST_ON (4) = error


2-8


VARI-A-

BLE #


# TYPE COMMENTS

25.2 nv_op_status.man_i_cal O SNVT_lev_disc

Manual initial calibrationST_OFF = not inprogressST_ON (4) = inprogress

25.3 nv_op_status.cal_fault O SNVT_lev_disc

Calibration faultconditionST_OFF (0) =

no calibration faultST_ON (4) =

error during calibration

25.4 nv_op_status.zero_proc O SNVT_lev_disc

Zero procedureST_OFF = not inprogressST_ON = in progress

25.5 nv_op_status.chg_sensor O SNVT_lev_disc

Sensor changeST_OFF = not neededST_ON = needed

25.6 nv_op_status.cal_flag O SNVT_lev_disc

Calibration status flagST_OFF = calibratedST_ON = not calibrated

25.7 nv_op_status.i_cal_proc O SNVT_lev_disc

Initial calibrationST_OFF = not inprogressST_ON = in progress

25.8 nv_op_status.span_proc O SNVT_lev_disc

Span procedureST_OFF = not inprogressST_ON = in progress

25.9 nv_op_status.alarm O SNVT_lev_disc

Alarm conditionST_OFF = not in alarmST_ON = in alarm

25.10 nv_op_status.reserved1 0 SNVT_lev_disc reserved, not used, = 0

25.11 nv_op_status.locked_100 O SNVT_lev_disc

Locked at 100%ST_OFF = not lockedST_ON = locked

25.12 nv_op_status.underrange O SNVT_lev_disc

Reading currentlyunderrangeST_OFF = notunderrangeST_ON = underrange

25.13 nv_op_status.overrange O SNVT_lev_disc

Reading currentlyoverrangeST_OFF = notoverrangeST_ON = overrange


2-9


VARI-A-

BLE #


# TYPE COMMENTS

25.14 nv_op_status.reserved2 O SNVT_lev_disc reserved, not used, = 0

25.15 nv_op_status.reserved3 O SNVT_lev_disc reserved, not used, = 0

25.16 nv_op_status.reserved4 O SNVT_lev_disc NOTE

1 reserved, not used, = 0

26 nv_error_status O

error_status_t(non-SNVTstructureddata)

NOTE1 error status

26.1 nv_error_status.sensor_missing O SNVT_lev_disc

Sensor missingST_OFF = missingST_ON = not missing

26.2 nv_error_status.bad_jumpers O SNVT_lev_disc

Invalid JumperConfigurationST_OFF = not invalidST_ON = invalid

26.3 nv_error_status.tic_error O SNVT_lev_disc

Time in can errorST_OFF = no errorST_ON = error

26.4 nv_error_status.memory_error O SNVT_lev_disc

Non-volatile memoryerrorST_OFF = no errorST_ON = error

26.5 nv_error_status.error_5 O NOTE

1

Internal relay errorST_OFF = no errorST_ON = error

26.6 nv_error_status.error_6 O

batt power outage(Toxgard II)ST_OFF = no errorST_ON = error

26.7 nv_error_status.error_7 O

Pump bad/low flow(Toxgard II)ST_OFF = no errorST_ON = error

26.8 nv_error_status.error_8 I/O Reserved

26.9 nv_error_status.error_9 I/O Error value (0..255)

26.10 nv_error_status.error_10 I/O SNVT_char_asc

ii

Processor notresponding.ST_OFF = no errorST_ON = error

27 nv_pfl_status Onon-SNVTstructured data(see below)

NOTE1 Peripheral status


2-10


VARI-A-

BLE #


# TYPE COMMENTS

27.1 nv_pfl_status.relay_present O SNVT_lev_disc

Relay module.ST_OFF = not presentST_ON = present

27.2 nv_pfl_status.autocal_present O SNVT_lev_disc

Auto-calibration module.ST_OFF = not presentST_ON = present

28 nv_cal_date I/O SNVT_time_stamp 84 NOTE1 Future calibration date

29 nv_prev_cal_date I/O SNVT__time_stamp 84 NOTE1 Previous calibration date

30 nv_cal_interval I/O SNVT_count 8 NOTE1

Calibration interval.Number of days (1-128)between automaticcalibrations

31 nv_temperature O SNVT_temp 39 NOTE1

Temperature(-274 .. 6279.5C)

32 nv_firmware_vers O SNVT_char_ascii 7 NOTE1 Firmware version number

33 nviAlmAck I/O SNVT_lev_disc 22Command to unlatch or toacknowledge alarmsST_OFF (0) = unchangedST_ON (4) = acknowledge

NOTE 1: The following variables are updated when their values change and when theminimum send timer, as controlled by nciMinSendT variable, expires:

nv_temperature,nv_op_status,nv_alarm_status,nv_error status

All other output variables are updated when the node/sensor goesONSCREEN. All input variables are updated immediately. These variablevalues are polled, not propagated.NOTE 2: NvoValue and nvoRawHwData use nciMinDelta and nciMinSendT to determinewhen to propagate, otherwise these variables propagate when they change.


2-11

Chapter 3Installation and Start-up

Mounting Your Gas MonitorThe Ultima with Digital Output Gas Monitor is installed asdescribed in the Ultima Gas Monitor instruction manual(P/N 813161); refer to that manual for mounting procedures.

Electrical Connections for Ultima with Digital Output Gas MonitorsGeneral Wiring Information

� WARNINGDisconnect the power source feeding the Monitor when wiring the Ultimawith Digital Output Gas Monitor. Before removing the cover of anexplosion-proof Ultima with Digital Output Gas Monitor, verify thesurrounding area does not contain a flammable mixture of combustiblegas and air, since a source of ignition is exposed; otherwise, an explosionmay occur if a metal object contacts the circuitry and produces sparks.

There is no need to open the enclosure during a typicalinstallation because the Ultima with Digital Output Gas Monitordesign eliminates all:

• Internal jumpers (with the exception of thePropane/Methane jumper in an IR unit)

• Potentiometers• Dip switches or other types of adjustments (with the

exception of the Channel Selection switch in a Wireless unit).

All electrical connections to the Ultima with Digital Output GasMonitor Monitor can be made via the factory-installed wiring harness(FIGURES 3-1). This wiring harness always contains four wires forWired units (two wires for Wireless units) and is marked to identify:

• power• power ground• network connections (Wired units only).

If it is not possible to use the wiring harness, you must open theunit and disconnect the wiring harness from terminal blocks onthe lower printed circuit board, and the middle printed circuit

Chapter 3, Installation and Startup

3-1

board. See Chapter 3, "Wiring the Ultima with Digital Output GasMonitor Without Using the Wiring Harness."

Cable Requirements• In all Wired installations but Pennsylvania mining installations, it

is recommended that cable (P/N 655548) be used to carry theinformation over the network. For Pennsylvania mininginstallations, use cable (P/N 655267). Do not use any othercable type. Using other types of cable will cause the networkand the sensor to fail.

� WARNINGDo not use any cable other than P/N 655548 or, for Pennsylvania mininginstallations, P/N 655267. Using other cable types will cause sensorand network failure, and could result in personal injury and/or deathto individuals relying on the sensor or network.

• In all Wired installations, the end of the cable run must beequipped with a terminator. Your particular cable run may needtwo terminators; generally, two terminators are required forlonger cables. Consult systems manual for additionalcabling information.

• All wiring connections should be made by following theappropriate wiring code(s).

�WARNINGWhen installing in a hazardous area, be sure to install your Ultimawith Digital Output Gas Monitor according to National Electrical andlocal procedural codes. Failure to do so can result in serious personalinjury or death.

The following tables show maximum cable length when using onlythe Ultima with Digital Output Gas Monitor. Other options, such asrelays, read-out or control modules may shorten the cable run.

Table 3-1. Maximum Cable Length

WIRING TOPOLOGY MAXIMUM DISTANCE(FEET)

MAXIMUM DISTANCE WITHONE REPEATER (FEET)

Doubly-terminatedbus topology 8850 17710

Free topology 1640 3280


3-2

TABLE 3-2 shows the maximum separation distance when usinga Wireless Ultima with Digital Output Gas Monitor. Otherconditions, such as non-line-of-site or antenna mounting heightmay shorten the separation distance.

Table 3-2. Maximum Separation Distance

WIRELESS TOPOLOGY ANTENNA MOUNTINGHEIGHT (FEET)

MAXIMUM DISTANCE(FEET)

Wireless 10 5280

Power Requirements• Options such as relays, read-out or control modules may take

additional power which may require a local power supply or ashorter cable run. Refer to the manual for the additionalequipment for precise cabling information.

• When selecting cable size, consider future needs (e.g., additionof sensors and/or options available with the Ultima Monitor).

• For all models, ensure that there are at least 7 volts DC at thesensor for proper operation.

• An external power supply may be required for the Ultima withDigital Output Gas Monitor if the distance is very large or if anumber of sensors are to be used.

There are two models of the Ultima with Digital OutputGas Monitor:

• a single condulet model• a remote sensor model.

All models are wired to the network as described below;however, the remote sensor model needs additional wiring.Refer to Section 3, "Electrical Connections for the Ultima withDigital Output Gas Monitor Remote Sensor Module" forwiring information.

� WARNINGDisconnect the power source feeding the Remote Sensor Moduleand the Ultima with Digital Output Gas Monitor/Less Sensor beforewiring the Ultima with Digital Output Gas Monitor Remote SensorModule. Failure to do so can result in serious personal injury ordeath.


3-3

All electrical connections to the Ultima with Digital Output GasMonitor Monitor can be made via the factory-installed wiringharness (FIGURE 3-1). This wiring harness always contains twoindividually-twisted pairs of wires. The wires are marked:

Table 3-3. Wire Harness Assembly (Wired Units)

PAIR NO. COLOR LABEL FUNCTION

1 WHITE/ORANGE +PS POWER

1 ORANGE -PS POWER GROUND

2 WHITE/BLUE COMA COMMUNICATION A

2 BLUE COMB COMMUNICATION B

Table 3-4. Wire Harness Assembly (Wireless Units)

PAIR NO. COLOR LABEL FUNCTION

1 BLACK PWR POWER

1 WHITE GND POWER GROUND

It is necessary to open the unit if:

• it is not possible to use the wiring harness• you are installing the unit in a classified or hazardous area.

Figure 3-1.Wire Harness Assembly (Wired Unit Shown)


3-4

� WARNINGBefore removing the cover of an Ultima with Digital Output GasMonitor Remote Sensor Module or Ultima with Digital Output GasMonitor/Less Sensor, verify that the surrounding area does notcontain a flammable mixture of combustible gas and air, since asource of ignition is exposed; otherwise, an explosion may occurif a metal object contacts the circuitry and produces sparks.

Wiring the Ultima with Digital Output Gas Monitor Without Using the Wiring Harness

1. Unscrew the lid of the Ultima with Digital OutputGas Monitor.

2. Remove the two screws securing the front display to the unit.

3. Carefully remove the upper two printed circuit boards as aunit (two network wiring conductors are connected tothis board).

4. If this is a Wireless unit, remove the two screws securing thetermination board to the unit.

5. If this is a Wireless unit, carefully remove the terminationprinted circuit board from the unit (two power wiringconnections are connected to this board).

6. Remove the two power wiring conductors from the lowerprinted circuit board still located within the unit.

7. Remove the harness from the printed circuit boardjust removed (Wired units only).

8. Route the cable through the cable entry, using the properhardware for your particular application.

9. Connect the two power conductors on the lower printedcircuit board (see FIGURE 3-2 and TABLE 3-5 for wiredunits, and FIGURE 3-3 and TABLE 3-7 for wireless units).

Table 3-5. Lower Printed Circuit Board TB1 Connections(Wired Units)

CONNECTION POSITION ON CONNECTOR

POSITIVE POWER POSITION 1

NOT USED POSITION 2

NEG. OR GROUND POSITION 3


3-5

Table 3-6. Power Requirements

RF ULTIMA IR

VOLTAGE MAX. CURRENT10 VDC 260 mA12 VDC 225 mA24 VDC 135 mA

RF ULTIMA TOXIC/O2

7 VDC 185 mA12 VDC 115 mA24 VDC 75 mA

RF ULTIMA CATALYTICCOMBUSTIBLE

7 VDC 510 mA12 VDC 330 mA24 VDC 170 mA

Table 3-7. Lower Printed circuit board connections (Wireless)CONNECTION POSITION OF CONNECTOR

NEG. OR GROUND POSITION 1POSITIVE POWER POSITION 2NEG. OR GROUND POSITION 3POSITIVE POWER POSITION 4

10. On a Wired Unit, connect the communication conductors tothe connector on the board that was removed in step 3(FIGURE 3-4). The network wiring is polarity-insensitive;

Figure 3-2.Bottom Printed Circuit Board

Figure 3-3.Routing the Antenna Cable


3-6

therefore, the communication conductors can beconnected to the connector in either way.

Electrical Connections for the Ultima with DigitalOutput Gas Monitor Remote Sensor Module

�WARNINGDisconnect the power source feeding the Remote Sensor Module andthe Ultima with Digital Output Gas Monitor/Less Sensor before wiringthe Ultima with Digital Output Gas Monitor Remote Sensor Module.

Before removing the cover of an explosion-proof Ultima with DigitalOutput Gas Monitor Remote Sensor Module or Ultima with DigitalOutput Gas Monitor/Less Sensor, verify that the surrounding areadoes not contain a flammable mixture of combustible gas and air,since a source of ignition is exposed; otherwise, an explosion mayoccur if a metal object contacts the circuitry and produces sparks.

All Ultima with Digital Output Gas Monitor Remote SensorModules (except the combustible models) are supplied with 50feet of cable. This cable has a connector on one end whichplugs into its mate within the Ultima with Digital Output GasMonitor/Less Sensor. The other end of the cable can be cut tothe exact length needed.

The combustible Remote Network Sensor Module is wired with athree-conductor cable (not included). Terminal strips within theRemote Network Sensor Module and the Ultima with DigitalOutput Gas Monitor/Less Sensor permit easy cable wiring.

Figure 3-4.Communication Wiring Connections


3-7

�WARNINGWhen installing a Ultima with Digital Output Gas Monitor Remote SensorModule and its mating Ultima with Digital Output Gas Monitor/LessSensor, follow National Electrical and local procedural Codes. Failureto do so can result in serious personal injury or death.

The maximum cable distance is 50 feet between the:

• Ultima with Digital Output Gas Monitor Remote Sensor and the • Ultima with Digital Output Gas Monitor.

Do not splice additional cable to the supplied cable or run morethan 50 feet of user-supplied cable.

Electric Connections for Combustible Models

Acquire the proper length of three-conductor cable.

• See Ultima Gas Monitor manual, TABLE 1-6 for recommendedwire gauge between the Remote Network Sensor and theUltima with Digital Output Gas Monitor/Less Sensor.

• Ultima Gas Monitor manual TABLE 1-7 lists several suppliers of12-AWG cable.

• Use shielded cable if there is a possibility of electricalinterference from external sources (e.g., large motors, welders,electrical heaters, etc.).

• The preferred colors of the conductors within the cable are black(K), green (G) and white (W). If splices are necessary, solder andinsulate each conductor; then, wrap the entire splice with suitableelectrical tape or covering. Do not use wire nuts or fasteners.

At the Ultima with Digital Output Gas Monitor/Less Sensor Location

• For wiring the Ultima with Digital Output Gas Monitor/LessSensor, see the Ultima Gas Monitor manual and FIGURE 1-19.

At the Ultima with Digital Output Gas Monitor Remote SensorLocation

• For wiring the Ultima with Digital Output Gas Monitor RemoteSensor, see the Ultima Gas Monitor manual and FIGURE 1-22.


3-8

Start-up of the Ultima with Digital Output Gas MonitorApplying Power to the Ultima with Digital Output GasMonitor

• See Ultima Gas Monitor manual Chapter 2 for initialstart-up information.

• The "r" on the Ultima with Digital Output Gas Monitor is visiblewhen it is communicating via the network.

NOTE: The "r" is not blinking all the time the Monitoris communicating.

Calibrating the Ultima with Digital Output Gas Monitorfor complete calibration information, refer to:

• Ultima Gas Monitor Controller Manual (P/N 813379) or • Ultima Gas Monitor Calibrator Manual (P/N 813167)

Ultima with Digital Output Gas Monitor ConfigurationNetwork Operation

• The Ultima with Digital Output Gas Monitor sends its outputover the network so other devices can read and manipulate thisdata and then control or signal whichever is appropriate.

• The Wired Ultima with Digital Output Gas Monitor can also beconfigured via the network instead of using an UltimaController. The input and output variables needed to programthe Ultima with Digital Output Gas Monitor are listed in Chapter2 of this manual. These variables can be read and changedwith an appropriate read-out device. The Ultima Controller willalso configure the unit.

Setting the Wireless Channel for Ultima UnitsTo Create Group Number Two on a Wireless System:

1. Remove power from the unit.2. Unscrew the Network Ultima display Module cover and set it

aside.3. Using a small screwdriver, set the switched on the bottom

printed circuit board to the desired channel as shown inTABLE 3-8. The switches are accessible without anydisassembly of the unit.


3-9

Table 3-8. Wireless Channel Selection

SW-1 SW-2 SW-3 CHANNEL #OFF OFF OFF 0

ON OFF OFF 1

OFF ON OFF 2

ON ON OFF 3

OFF OFF ON 4

ON OFF ON 5

OFF ON ON 6

ON ON ON INVALID

4. Re-install the Network Ultima Display Module cover.5. Reconnect power to the unit.

NOTE: Power must be cycled to activate the changes.

6. Label the unit with the channel selected.

7. Repeat the same procedure for all displays, relays, andsensors to be bound as a network.

Figure 3-5.Routing the Antenna Cable


3-10

Chapter 4Maintenance

MaintenanceUnder normal operation conditions, the Ultima with Digital OutputGas Monitor requires minimal maintenance. See Chapter 4 ofthe Ultima Gas Monitor manual (P/N 813161), for completemaintenance instructions.

Obtaining Replacement PartsSee TABLE 4-1 for replacement sensor kits. To obtain areplacement sensor, address the order or inquiry to:

Mine Safety Appliances CompanyInstrument DivisionP.O. Box 427, Pittsburgh, PA 15230-0427

or call, toll-free, 1-800-MSA-INST.

�WARNINGUse only genuine MSA replacement parts when performing anymaintenance procedures provided in this manual. Failure to do somay seriously impair sensor performance. Repair or alteration ofthe Ultima Gas Monitor, beyond the scope of these maintenanceinstructions or by anyone other than authorized MSA servicepersonnel, could cause the product to fail to perform as designedand persons who rely on this product for their safety could sustainserious personal injury or death.

Chapter 4, Maintenance

4-1

Table 4-1. Replacement Sensor Kits

GAS SENSOR KIT PART NO.

Carbon Monoxide, 0-100 ppm813613

Carbon Monoxide, 0-500

Sulfur Dioxide, 25 ppm 813615

Hydrogen Sulfide, 10 ppm and 50 ppm 813616

Hydrogen Sulfide, 100 ppm 813618

Nitrogen Oxide, 100 ppm 813619

Nitrogen Dioxide, 10 ppm 813620

Chlorine, 10 ppm 813621

Hydrogen Cyanide, 50 ppm 813622

Hydrogen Chloride, 100 ppm 813623

Oxygen, 0-25% 813723

Combustible Gas, 100% LEL 813624

SENSOR REPLACEMENT PARTS

Cell Retaining Ring 806950

Combustible Sensor Cap 812074

Electrochemical General-Purpose Sensor Cap 812075

Oxygen General-Purpose Cap 806951

Electrochemical & Oxygen Explosion-Proof Sensor Cap 812074

WIRELESS REPLACEMENT PARTS

Antenna with Grip Kit 10046422

Printed Circuit Board, Lonworks INTFC Sensor RF 10043294

Printed Circuit Board, Ultima Wireless with Modem 10041737


4-2

Ultima RF Digital Network Module AntennaReplacement

1. Remove the cover from the stainless steel enclosure.

2. Remove two screws from the top printed circuit boardassembly.

3. Top Circuit Board(s) Removal• Note orientation of all printed circuit boards and

connectors for proper re-assembly of unit.a. Sensor Module:

The top two printed circuit boards are connectedtogether and plugged into a third (termination) board;pull and remove all boards together.

b. Display/Relay Module:Remove the top printed circuit board by unplugging itfrom the second (network) board.

4. Removing the Next Printed circuit board from theMounting Plate:a. Sensor Module:

Remove the two mounting screws holding thetermination board to the metal mounting plate; do notremove the metal standoffs from the termination board.

b. Display/Relay Module:Remove the network board from the mounting plate byremoving the two metal standoffs.

5. Unplug the antenna MMCX connector from the modem bypulling upwards.

6. Loosen the antenna grip and remove the antenna.

7. Replace the antenna grip with the new grip from thereplacement kit.

8. Insert the new antenna into the grip and tighten with sixinches of antenna extending from the grip.

9. Plug the antenna into the modem; be careful to route theantenna cable as shown in FIGURE 3-3.

10. Re-assemble the termination/network board to themounting plate; be sure to plug in any connectors thatwere disconnected.

11. Re-assemble the top board assembly by plugging it in andfastening with the proper screws.


4-3

ultima with digital output gas monitor -...

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