MSA 610A Instruction Manual
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MSA 610A Instruction Manual

Four channel control module combustible gas applications
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Model 610A
Four Channel Control Module
Combustible Gas Applications
The inf ormation and technical data disclosed in
this document may be used and disseminated
only f or the purposes and to the extent
specifically authorized in writing by General
Monitors.
Instruction Manual
General Monitors reserves the right to change
published specifications and designs without
prior notice.
Part No
Revision
CR
07-21
MAN610A
H07-21
800000051894

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  • Page 1 Model 610A Four Channel Control Module Combustible Gas Applications The inf ormation and technical data disclosed in this document may be used and disseminated only f or the purposes and to the extent specifically authorized in writing by General Monitors.
  • Page 2 This page intentionally left blank.

  • Page 3: Table Of Contents

    INTRODUCTION ........................1 Protection for Life ........................1 Special Warning........................1 Customer Support ......................2 1.0 BEFORE INSTALLATION ....................3 Differences Between Models 610A and 610 ..............3 General Product Description ..................3 Controller........................4 Sensor Assembly .......................5 2.0 INSTALLATION ........................ 6 Location of the Controller ....................6 Power Connections ....................6...
  • Page 4 Background of Combustible Gases..............26 3.9.3 Replacing a Sensor..................26 3.10 Special Options ....................... 26 3.10.1 Optional Model 610A Controller for Zone Control (Voting) ........26 3.10.2 Set Up Options..................... 27 4.0 MAINTENANCE ......................28 General Maintenance ....................28 Periodic System Verification ..................28 5.0 TROUBLESHOOTING ....................
  • Page 5 MODEL 610A 7.10.1 Panel Assembly, Panel Mount – 98, Ref: 10199C ..........40 7.10.2 Interconnection Drawing Zone Control Model 610A Controller ......41...
  • Page 6 Figure 7: Protection Circuit for Relay Contacts ................. 16 Figure 8: Front Panel Display ....................18 Figure 9: Portable Purge Calibrator ..................20 Figure 10: Panel Assembly, Panel Mount –98, Ref: 10199C ............41 Figure 11: Interconnection Drawing Zone Control Model 610A Controller ........41...

  • Page 7: List Of Tables

    Table 8: Relay Alarm Options....................27 Table 9: Troubleshooting Table ..................... 30 Table 10: Maximum Cable Lengths ..................35 Table 11: GMI Sensors Available for 610A System..............35 Table 12: Recommended Spare Parts ..................37 Table 13: Product Configuration Tables ......... Error! Bookmark not defined.

  • Page 8: Introduction

    Special care must be taken when wiring the system, to ensure that only the connection points are touched. Only catalytic bead sensors designed by General Monitors will work with the Model 610A Controller. Any attempt to use a sensor that has not been approved by General Monitors, will void the warranty.

  • Page 9: Customer Support

    MODEL 610A Sensors are designed with sintered metal, or screen covers, that act as flame arres t ors. Do not operate sensors without screen or sintered metal parts in place. General Monitors’ gas detection systems are primarily safety devices for the protection of personnel and facilities and must be “always ready”.

  • Page 10: Before Installation

    The Model 610A Controller consists of a controller plus f our s ensor as s emblies . The controller is fully solid-state. It should be mounted in a weather protected, non-hazardous area.

  • Page 11: Controller

    Figure 1: Model 610A Controller Controller The Model 610A Controller is a four-channel system where the controller c ont inuous ly monitors the inputs of four sensors. The sensors are monitored independently (i. e. t hey are not scanned, nor are the signals summed).

  • Page 12: Sensor Assembly

    Set points for High and Low alarms are adjustable from 5 to 60% LEL in the FM unit. NOTE: A service-loop is necessary between the Model 610A Cont roller’s rear p anel terminals and field/power wiring. This service loop permits the controller t o be removed or slid f orward f or various adjustments and/or servicing.

  • Page 13: Installation

    MODEL 610A 2.0 Installation Location of the Controller The Model 610A Controller should be installed in a weather-protected, non-hazardous area. The f ollowing mounting hardware is available to facilitate installation: Part Description Part Number 98mm (4”) panel mount frame P/N 10199-1 483 mm (19”) rack f rame (4 controllers)

  • Page 14: Battery Backup

    The battery rating (ampere-hour capacity) is dictated by the length of time power outages may last. A Model 610A Controller requires approximately 2 ampere (peak ) at 24 V DC. General Monitors recommends that a Lead-Acid type battery be used. This type of battery can be expected to last for several years with minimum maintenance.
  • Page 15 MODEL 610A Figure 3: Outline Drawing & Rear Terminal Connections (REF: 20659)
  • Page 16 MODEL 610A Figure 4: Rear Terminal Common Relay Configuration...
  • Page 17 MODEL 610A Figure 5: Rear Terminal Discrete Relay Configuration...

  • Page 18: Analog Output Connection

    MODEL 610A Analog Output Connection CAUTION: The analog output must be either used or jumpered. If not, the Model 610A indicates a f ault in the normal mode with the display read ing “AO” and t he FAULT LED f lashing.

  • Page 19: Environmental Factors

    Sensor Installation Various types (P/N’s) of sensors can be provided with the Model 610A Controller. However, the installation method is identical in all cases. Please refer to Section 7.6. The sensor assembly is used most often. It consists of P/N 10001-1 or 10058-1 s ens or plus GMI P/N 10252-1 Sensor Housing.

  • Page 20: Table 2: Terminal Colors

    MODEL 610A General Monitors recommends the use of shielded cable generally, though in some cases it is not an absolute necessity. Due to the low levels of sensor s ignal volt ages, shielded cable is required in some installations to guard against extraneous elec trical noise.
  • Page 21 MODEL 610A Figure 6: Junction Box Assembly – Sensor...

  • Page 22: Alarm Wiring Connections

    MODEL 610A SENSOR GUARDS PART NUMBER DESCRIPTION 1800822 DUST GUARD 10395-1 SPLASH GUARD 10110-1 DUST GUARD WITH DISPOSABLE SCREEN Table 4: Sensor Guards CAUTION: Always mount sensors pointing downward, so that water does not accumulate on the sensor head. Mounting must be as free from s hock and vibration as possible, and convenient for calibrat ion check s.

  • Page 23: Special Voting Option

    If the special voting option has been ordered f or eight channels or more, special interconnections must be made between the Model 610A Controllers. Terminals for these interconnections are on terminal block TB2, which is the set of terminal b loc ks loc at ed horizontally along the bottom of the controller (Figure 11).
  • Page 24 MODEL 610A NOTE: The terminal blocks accept up to an AWG 14 wire. It is recommended that AWG 18 or AWG 20 wire be used where two leads are to be connected t o t he s ame terminal. When a voting system is in operation, all LED’s and Digital Readouts on the front of each channel f unction normally.

  • Page 25: Start-Up And Operation

    3.0 Start-Up and Operation Types of User Interfaces User interf aces are provided so that the operator may interpret and direct the Model 610A in the perf ormance of its various functions. User interfaces consist of a digital d is play , status indicators, a mode button and a reset button.

  • Page 26: Initial Application Of Power

    MODEL 610A Initial Application of Power Bef ore applying power for the first time, double-check all wiring components. The system has a time delay feature. The High and Low alarm circuits are d isabled for approximately 45 seconds after power is applied. This feature prevents false alarms while the sensor circuits are stabilizing.

  • Page 27: Calibration Check Mode

    MODEL 610A When a channel is in the Calibration, Calibration Check, Setup or Setup Check modes, a 1.5mA signal is generated by this output. During Calibration mode, t he d igit al display shows prompts associated with the calibration procedure. During Calibration Check mode, the digital display shows the gas concentration as a flashing digit, or pair of digits.

  • Page 28: Calibration Mode

    NOTE: Low and High alarms are disabled during Calibration Check mode. Calibration Mode NOTE: For better results power up the sensor at least an hour before the calibration. To calibrate the Model 610A: 1. Make sure the calibration gas is the same concentration as the user specif ied calibration level.

  • Page 29: Setup And Setup Check Modes

    MODEL 610A To Abort Calibration: 1. Wait until AC displays. Calibration cannot be aborted when (--) is flashing. 2. Press the Mode button and hold it for approximately 5 seconds. Release the but ton when the calibration level displays. 3. The channel returns to normal operation.

  • Page 30: Entering The Password

    MODEL 610A 1. Press and hold the Mode button until the SETUP LED begins flashing (about twent y seconds). 2. Continuing to press and hold the Mode switch until the SETUP LED s t ops f lashing (about five seconds more).

  • Page 31: Calibration Level Option

    MODEL 610A selection, (En or dE). Press the Mode button to toggle the selection. De-Energized (dE ) is the f actory default for this selection. The Low LED on the f ront panel f lashes while the latching/non-latching option is displayed.

  • Page 32: Setup Mode Selection Table

    Model 610A. The t ab le s hown below indicates the order of options in the Setup mode. To the right of the o ption ent ry is a description of the choices that are available for that option.

  • Page 33: Check Points For Calibration And Operation

    3.10.1 Optional Model 610A Controller for Zone Control (Voting) The Model 610A Controller can be supplied with a special voting option, when s pecif ied on the original order for the equipment. A system supplied for vot ing us e, must be t he...

  • Page 34: Set Up Options

    The Low and Fault relays will function the same as t hey do in no n- voting systems (16 channel). A maximum of four (4) Model 610A Controllers can be employed in t his vot ing o ption. (Please ref er to Section 7.10, for typical interconnections).

  • Page 35: Maintenance

    4.0 Maintenance General Maintenance Once installed, the Model 610A Controller requires little or no routine maintenance, other than periodic calibration checks. General Monitors recommends that a calibration schedule be established and adhered to. GMI also recommends that a logbook b e kept , showing calibration dates and dates of sensor replacement.

  • Page 36: Troubleshooting

    MODEL 610A 5.0 Troubleshooting General It is highly recommended that a spare sensor be on hand at all times. General Monitors ’ sensors are the most reliable, longest life, catalytic bead sensors available. Sensor failure tends to be one of the potential causes of real downtime. A full complement of other GMI recommended spare parts should also be on hand (Section 7.7).

  • Page 37: Fault Codes

    MODEL 610A Fault Codes In addition to the Fault LED on the front panel, the Model 610A provides a f ault c ode on the digital display whenever a f ault condition occurs. The Fault Codes that can appear on...

  • Page 38: Customer Support

    MODEL 610A 6.0 Customer Support General Monitors’ Offices Area Phone/Email UNITED STATES 16782 Von Karman Ave. Unit 14, Phone: +1-949-581-4464 Irvine, CA 92606 Email: inf o.gm@MSAsafety.com IRELAND Ballybrit Business Park Galway Phone: +353-91-751175 Republic of Ireland, H91 H6P2 Email: inf o.gmil@MSAsafety.com SINGAPORE 35 Marsiling Ind.

  • Page 39: Appendix

    7.0 Appendix Warranty General Monitors warrants the Model 610A Controller to be f ree f rom def ects in workmanship or material under normal use and service, within t wo (2) y ears f rom t he date of shipment. General Monitors will repair or replace, without charge, any such def ective equipment found to be defective during the warranty period.
  • Page 40 MODEL 610A This sensor relies on catalytic oxidation to sense and respond to combustible gases and vapors. As the term implies, oxygen plays a very crucial part in the operation. If there is a depletion of oxygen, there will be a loss of response from the sensor. If the combust ible gas is in mixture with nitrogen or some other inert gas, there may be no response at all, depending on the level of oxygen present.

  • Page 41: General Specifications - Controller

    MODEL 610A General Specifications - Controller 7.3.1 Mechanical Specifications Dimensions: 4.0”W x 6.9”H x 11.5”D (102mm x 175mm x 292mm) Weight: 6.2 lbs. (2.86 kg) Mounting Conf iguration: Rack, panel, wall 7.3.2 Environmental Specifications Temperature Range: 32°F to 140°F (0°C to +60°C) Storage Temperature: -4°F to +149°F (-20°C to +65°C)

  • Page 42: Cable Requirements

    4800 2320 7600 Table 10: Maximum Cable Lengths Sensors The f ollowing is a list of GMI sensors available for use with the Model 610A Controller: PART NUMBER DESCRIPTION 10001-1 Standard Industrial Combustible Gas Sensor. Used for mos t hydrocarbons and hydrogen. Temperature rang e –65°F to +200°F (-55°C to +93°C).

  • Page 43: Accessories

    MODEL 610A NOTE: Part Numbers 10001-1, 10058-1, and 10022-1 sensors are CSA C22.2 No . 152 certif ied and part numbers 10001-1 and 10058-1 are additionally certified t o FM 6320. Part Number 10252-1 sensor housing is normally used in the Western Hemisphere.

  • Page 44: Recommended Spare Parts

    MODEL 610A 7.7.2.2 Sintered Stainless Steel Dust Guard (P/N 1800822-1-1) The construction of this accessory is similar to the Dust Guard assembly, abov e, but it has a 1/8” (3mm) thick sintered stainless steel disc at one end. The body material is stainless steel.

  • Page 45: Sample Calibration Schedule And Checklist

    MODEL 610A Sample Calibration Schedule and Checklist To perf orm a Calibration Check or Calibration, refer to Sections 3.5 and 3.6. Sensor Serial Number Location ___________________ _____________________ 1. Installation and Preliminary calibration. Rec ord Date: __________________ date af ter preliminary calibration is done.
  • Page 46 MODEL 610A...

  • Page 47: Engineering Documentation

    MODEL 610A 7.10 Engineering Documentation 7.10.1 Panel Assembly, Panel Mount – 98, Ref: 10199C...
  • Page 48 MODEL 610A Figure 10: Panel Assembly, Panel Mount –98, Ref: 10199C 7.10.2 Interconnection Drawing Zone Control Model 610A Controller Figure 11: Interconnection Drawing Zone Control Model 610A Controller...
  • Page 49 MODEL 610A ADDENDUM Product Disposal Considerations This product may contain hazardous and/or toxic substances. EU Member states shall dispose according to WEEE regulations. For further General Monitors’ product WEEE disposal information please visit: www.MSAsafety.com. All other countries or states: please dispose of in accordance with existing federal, state and local...
  • Page 50 MODEL 610A Index accessories, 37 on/off switch, 6 active bead, 33 periodic calibration check, 3 air currents, 11 periodic calibration checks, 28 alarm wiring connections, 15 portable calibration chamber, 37 analog output connection, 11 portable purge calibrator, 20 battery backup, 7...

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