TGM 1 GAS Monitor instruction manual THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL HAVE THE RESPONSIBILITY FOR INSTALLING, USING OR SERVICING THIS PRODUCT. Like any piece of complex equipment, this product will perform as designed only if installed, used and serviced in accordance with the manufacturer s instructions. OTHERWISE, IT COULD FAIL TO PERFORM AS DESIGNED AND PERSONS WHO RELY ON THIS PRODUCT FOR THEIR SAFETY COULD SUSTAIN SEVERE PERSONAL INJURY OR DEATH. The warranties made by Mine Safety Appliances Company with respect to these products are voided if the products are not installed, used and serviced in accordance with the instructions in this manual. Please protect yourself and others by following them. We encourage our customers to write or call regarding this equipment prior to use or for any additional information relative to use or repair. INSTRUMENT DIVISION 1-800-MSA-INST or FAX (412) 776-9783 MSA INTERNATIONAL (412) 967-3228 or FAX (412) 967-3373 Mine Safety Appliances Company 1996 - All Rights Reserved Manufactured by MSA Canada Inc., TORONTO, ONTARIO M3N 1X8 Distributed by MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PENNSYLVANIA 15230 REV 3.2 06.30.98 212819
World Wide Product Support Locations Headquarters MSA International P.O. Box 426 Pittsburgh, PA 15230 TEL: (412) 967-3249 FAX: (412) 967-3451 Australia MSA (Aust.) Pty. Ltd. 137 Gilba Road P.O. Box 43, Wentworthville Sydney. Girraween NSW 2145, Australia TEL: (02) 688-0333 FAX: (02) 896-3224 Brazil MSA do Brasil, Ltda. Av. Roberto Gordon. 138 Caixa Postal 376 09901-970 Diadema Sao Paulo, Brazil TEL: (11) 445-1499 FAX: (11) 456-6433 Canada MSA Canada Inc. 148 Norfinch Drive North York, Ontario M3N 1X8, Canada TEL: (416) 667-9400 FAX: (416) 663-5908 Chile MSA de Chile Ltda. Avda. Salvador 1434 Casilla 16647, Correo 9 Santiago, Chile TEL: (2) 2255377 FAX: (2) 2250799 China Wuxi-MSA Safety Equipment Co. Ltd. 305 Xicheng Road Wuxi City. Jiangsu Province Peoples Rep. Of China TEL: (510) 2406134 FAX: (510) 2402310 France MSA de France 13 rue de la Guivernone BP617 95004 Cergy Pointoise Cedex TEL: (1) 34323432 FAX: (1) 30376305 Germany Auergesellschaft GmbH P.O. Box 620 D-12006 Berlin Germany TEL: (30) 6886-0 FAX: (30) 6886-115 Great Britain MSA (Britain) Ltd. East Shawhead Coatbridge, ML5 4TD Scotland, Great Britain TEL: (236) 424966 FAX: (236) 440881 Hungary MSA Auer Hungaria Biztonsagtechikai Kft. Gyomroi ut 140 H-1 108 Budapest X. Hungary TEL: (1) 1272-010 FAX: (1) 1272-010 India MSA (India) Ltd. P-25 Transport Depot Rd Calcutta 700088 India TEL: (33) 49-2206 FAX: (33) 4799368 Italy MSA Italiana S.p.A. P.O. Box 1719-20101 Milano, Italia TEL: (2) 89-20-19-18 FAX: (2) 82-59-228 Japan MSA Japan Ltd. 15-21 Roppongi 6-Chome Minato-Ku Tokyo 106. Japan TEL: (3) 3403-3918 FAX: (3) 3479-0460 Mexico MSA de Mexico S.A. de C.V. Francisco 1. Madero 84 Apartado 168 53500 Naucalpan de Juarez (Edo de Mexico) TEL: (5) 576-6444 FAX: (5) 359-4330 Middle East MSA Middle East Bin Hamoodah Bldg. Khalifa St. P.O. Box 46338 Adu Dhabi United Arab Emirates TEL: (2) 325-906 FAX: (2) 339-288 Netherlands MSA Nederland B.V. P.O. Box 39 1620 AA Hoorn Netherlands TEL: (2290) 503-03 FAX: (2290) 13340 Peru MSA del Peru S.A. Los Telares 139 Urb. Vulcano. Atc. Lima 3 Casilla 1933 (Mail) TEL: (14) 35-4065 FAX: (14) 36-1491 Russia Sibertech Monocrystal Institute Novosubirsk, Russia TEL: (7-3832) 33 12 79 FAX: (7-3832) 39 94 03 Southeast Asia MSA S.E. Asia Pte. Ltd. 51 Ayer Rajah Crescent #02-03 Singapore 0513 TEL: 776-1633 FAX: 778-2529 South Africa Boart MSA (Pty) Ltd. CNR. Kelvin St. & Steel Rd Spartan. P.O. Box 1710 Kempton Park 1620 TEL: (11) 394-5630 FAX: (11) 5648 Spain MSA Española S.A. Narciso Monturiol 7 Poligono Industrial Apartado de Correos 104 08960 Sant Just Desvern Barcelona TEL: (3) 372-51-62 FAX: (3) 372-66-57 Sweden AB Tegma Kopparbergsgatan 29 S-21444 Malmö TEL: (40) 80200 FAX: (40) 968-215 Switzerland MSA (Switzerland) Ltd. Grubenstrasse 24-26 CH-3072 Ostermundingen TEL: (31) 932-1151 FAX: (31) 932-113 Zimbabwe MSA Zimbabwe (Pvt.) Ltd. P.O. Box AY280, AMBY Harare Tel: (4) 486641 FAX: (4) 496357
1. The monitor described in this manual should be installed, operated and maintained in strict accordance with any labels, cautions, warnings, drawings, instructions, and within the limitations stated. 2. The TGM Series must not be installed in areas or locations where explosive concentrations of combustible gases or vapours might occur in the atmosphere: Class I, Groups A, B, C, and D areas, as defined by the NEC. Because these monitors are not explosion-proof, they must be located in a non-hazardous area. 3. Use genuine MSA replacement parts when performing any maintenance on the TGM Series. Failure to do so may seriously impair instrument performance. Repair or alteration of the TGM Series beyond the scope of these instructions, or by anyone other than a certified MSA service person, could cause the product to fail to perform as designed and persons who rely on this product for their safety, could sustain severe bodily injury or death. 4. For safety reasons, this equipment must be operated and serviced by qualified personnel only. Read and understand the instruction manual completely before operating or servicing a TGM Series.
TGM1 Table of Contents Table of Contents Section 1 General Information... 1-1 Introduction... 1-1 LED Indicators & Relays & Audible Alarm... 1-1 Warning and Alarm Condition, Sensor Failure Condition... 1-1 Section 2 Installation and Specifications... 2-1 Installation of Monitor... 2-1 Operating Specifications... 2-1 External Connection: Remote Sensors... 2-2 Signal Output, Relays, Power... 2-3 Set-Up & Calibration... 2-4 Warning & Alarm Setpoints... 2-4 Warning & Alarm Delays... 2-4 Alarm Latch, Display Mode, Audible Alarm Device... 2-5 Analog Output Adjustment... 2-6 Section 3 General Operation... 3-1 Auto-Ranging... 3-1 Warning & Alarm... 3-1 Sensor Failure... 3-1 Section 4 Start-Up Procedure for TGM1... 4-1 Calibration Log... 4-3 Calibration Log... 4-4 Parts List... 4-5 Section 5 Figure 1:TGM1 Enclosure Drawing... 5-1 Figure 2: TGM1 Wiring Diagram... 5-2 Figure 3: TGM1 Panel Layout/Connection... 5-3 Figure 4: TGM1 Series Freon Panel Layout Connection... 5-4 Figure 5: TGM1 Series RS-485 Serial Communications Type Sensor... 5-5 Figure 6: TGM1 Field Connection Diagram for 4-20 ma Analog Signal Type Sensor... 5-6 Figure 7: TGM1 Sensor Wiring Diagram... 5-7 Section 6 CSA Certification & FCC Compliance... 6-1 TOC-1
TGM1 Table of Contents Appendix A Figure 8A: Troubleshooting Guide for TGM1... A-1 Figure 8B: Troubleshooting Guide for TGM1...A-2 Figure 8C: Troubleshooting Guide for TGM1...A-3 Figure 8D: Troubleshooting Guide for TGM1...A-4 TOC-2
TGM1 Section 1 General Information Section 1 General Information Introduction This manual contains instructions for the MSA TGM1 Series. Description: The TGM1 Series is a microprocessor-based monitoring system designed to interface with a wide range of MSA Sensors. One (1) Sensor can be connected to the TGM1. The system comes complete with audible and visual status indication, relay outputs and adjustable warning and alarm levels, complete with reset. The alarm relay is selectable for non-latching or latching with H1-9. Standard factory configuration is the non-latching mode. Sensor Failure Condition: The TGM1 Monitor has Sensor OK LED. If the remote sensor fails, the Sensor OK LED (Green) goes out and the sensor fail relay is activated. The sensor fail relay is non-latching. LED Indicators & Relays & Audible Alarm Warning Condition: When the gas concentration exceeds the warning setpoint, the AMBER warning LED turns on and the warning relay is activated. The warning relay is non-latching. When the Warning conditions disperse below the setpoint, the relay will re-set. Alarm Condition: When the gas concentration exceeds the alarm setpoint, the RED Alarm LED turns on, the alarm relay is activated and the audible alarm sounds. 1-1
TGM1 Section 2 Installation and Specifications Section 2 Installation and Specifications Installation of Monitor Install the TGM1 on a wall or structure that is free from shock or vibration. It should be protected against physical damage, water, heat and direct sunlight. Install the Monitor so that its door can be opened and accessed for service. Operating Specifications Power Requirements: Standard 110 volts AC 50/60 Hz 10% @ 0.5 Amps or (Optional) 220 volts AC 50/60 Hz 10% @ 0.25 Amps or (Optional) 24 volts DC 10% @ 1.5 Amps max. Signal Input: 4 to 20 milliamps, 2 or 3-wire connection, OR RS-485, 4-wire connection. Temperature: Operating: 0 to 40 C (32 to 104 F) Storage: -10 to 50 C (14 to 122 F) Sensor Power: 24 Volts DC @ 200 milliamps Relay Contact Ratings: 10 Amps 1/8 H.P., 125 Vac 6 Amps 1/8 H.P., 277 Vac 5 Amps 30 Vdc Number of Relays: WARNING: 1 Relay SPDT, ALARM: 1 Relay SPDT, SENSOR FAILURE: 1 Relay SPDT Digital Readout Scale (optional): 4 Digit Display (Point # and Gas Level) Status Display: Discrete LED for WARNING, ALARM, and SENSOR OK Alarm & Warning Setpoints: Standard Factory Set @ 35% and 50% of Full Scale and Field Adjustable, unless otherwise specified when ordering. Sensor Fail Setpoint: Non-adjustable Time Delays: Fixed delay of 5 minutes OFF delay for Warning and fixed delay of 5 minutes ON delay for Alarm. 2-1
TGM1 Section 2 Operating Specifications OR Field adjustable delays for 0 to 10 minutes. Audible Alarm: Solid ON-Standard Factory Setting (80-90 db @ 1 ft.) OR Variable Sound Pulse Calibration: Remote Sensors: One (1) remote sensor can be connected to the TGM1. The Sensor may be a 4-20 ma analog signal type or an RS-485 serial communications type. The RS-485 type sensor may be any gas type and range. The TGM1 will automatically interpret the sensor operating range. Use shielded cable for wiring installation. Signal wiring must not be installed in the same conduit with power or relay wiring. Refer to sensor wiring diagram (page 5-5, 5-6 or 5-7) and sensor instruction manual for more details. All units are tested and pre-calibrated at the factory. Enclosure: Standard - Metal NEMA 1 Optional - Fiberglass NEMA 4 Dimensions: Height: 11.5 (292 mm) Width: 10.0 (254 mm) Depth: 3.75 (95 mm) External Connections Perform all wiring and conduit installation in accordance to the Canadian Electrical Code or the National Electrical Code or to local electrical requirements. Use separate conduits for power wires, relay wires and signal wires. WHEN CONNECTING THE REMOTE SEN- SORS, MAKE SURE THAT ALL WIRING IS CORRECT AND THE FOUR LEADS OF THE RS-485 BUS ARE NOT INTERCHANGED, OR PERMANENT DAMAGE TO THE SEN- SOR MAY RESULT. NOTE MAKE SURE THAT THE SENSOR IS GIVEN ADDRESS 1 ON ITS ADDRESS JUMPERS, OR THE TGM1 WILL NOT BE ABLE TO COMMUNICATE TO IT. (FOR RS-485 ONLY) 2-2
TGM1 Section 2 External Connections Signal Output (optional): The 4-20 ma analog signal represents the gas concentration level within the designated dynamic range. Relays: When jumper H1-3 is OUT, all relays are normally de-energized when inactive, and energized when activated. When jumper H1-3 is IN, all relays are normally energized when inactive and de-energized when activated. This provides fail-safe operation of the TGM1. Each relay has an LED associated with it that shows if the relay is energized. The fuse at the input is a 150 ma SloBlo type fuse (BUSSMAN MDL 15/100 or equivalent). REPLACE FUSE ONLY WITH ONE OF SAME RATING AND TYPE NOTE DO NOT USE MONITOR POWER WHEN CONNECTING ANY EXTERNAL DEVICES TO THE RELAY CONTACTS. USE A SEPARATE POWER SOURCE. DO NOT EXCEED THE CONTACT RATINGS MARKED ON THE RELAYS. Power: Connect power supply (110 Vac 50/60 Hz) to terminal strip G, N and L. (Refer to page 5-7). Follow the applicable electrical code requirements when installing and wiring the unit. The power wiring must be separated from the signal wiring and relay wiring; use different conduit run for power, signal and relay wiring. 2-3
TGM1 Section 2 Setup & Calibration Setup & Calibration Warning & Alarm Setpoints: There are two methods for setting the warning and alarm setpoints. The first uses pre-programmed, fixed setpoints of 35% for warning and 50% for alarm. The second allows for adjusting the setpoints anywhere from 0% to 100% Full Scale (FS) via two potentiometers (labelled: WARNING, ALARM). To select the fixed setpoints, jumpers H1-7 (warning) and/or H1-8 (alarm) must be removed. To select the adjustable setpoint, jumpers H1-7 (warning) and H1-8 (alarm) must be inserted. Inserting a jumper activates the associated potentiometer and test point (TP1 for warning and TP2 for alarm). The test points show a voltage of 0-5 Vdc for a setpoint of 0-100% Full Scale. Using a voltmeter from the test points to TPCOM, the setpoint can be adjusted using the following equation. Warning & Alarm Delays: There are two methods for setting the warning and alarm delays. The first uses preprogrammed, fixed delays of 5 minutes OFF delay for warning and 5 minutes ON delay for alarm. The second allows for adjusting the delays anywhere from 0 to 10 minutes via two potentiometers (labelled: WARNING DELAY, ALARM DELAY). To select the fixed delays, jumper H1-5 must be inserted. To select the adjustable delays, jumper H1-5 must be removed. Removing the jumper activates the associated potentiometers and test points (TP3 for warning delay and TP4 for alarm delay). The testpoints show a voltage of 0-5 Vdc for a delay of 0-10 minutes. Using a voltmeter from the testpoints to TPCOM, the delay can be adjusted using the following equation: TP = Setpoint % x 5 Vdc 100% Example: TP = Example: Delay (min.) x 5 Vdc 10 To set up a warning setpoint of 40% and an alarm setpoint of 60%, TP1 should read: 40 x 5 = 2.0 Vdc 100 and TP2 should read: 60 x 5 = 3.0 Vdc 100 To set up a warning delay of 4 minutes and an alarm delay of 6 minutes, TP3 should read: 4 x 5 = 2.0 Vdc 10 and TP4 should read: 6 x 5 = 3.0 Vdc 10 2-4
TGM1 Section 2 Setup & Calibration Alarm Latch: Normally, all relays return to their inactive state once their condition has cleared. The alarm relay can be made to latch in the activated position even after the alarm has cleared. By inserting jumper H1-9, the alarm relay will remain latched after the alarm clears until the reset button is pressed. NOTE Pressing the reset button during the alarm condition does not affect the latching. The reset button must be pressed after the alarm condition has cleared in order to deactivate the alarm relay. Display Mode: The display of the TGM1 is auto-ranging for all RS-485 type serial sensors. The display mode jumpers have no effect for an RS-485 type sensor. The display mode jumpers take effect only if a 4-20 ma analog sensor is installed. Then the incoming analog signal is scaled to the full scale setting of the display mode jumpers. There are two sets of display ranges available: Range A and Range B. Jumper H1-4 selects which display range is active. If jumper H1-4 is OUT, Range A is selected; if jumper H1-4 is IN, Range B is selected. The following table shows the various jumper positions for the different display modes; Range A: Range B: Full Scale H2-2 H2-1 500 out out 200 out in 75 in out 50 in in Audible Alarm Device: The TGM1 has two audible alarm modes. The first is a solid-on mode that sounds the audible alarm continuously while the TGM1 is in an alarm state. The second is a variable- ON mode that sounds the audible alarm in an eight second interval pulsed fashion. The time between pulses is fixed, but the on-time of the audible alarm is determined by the amount that the alarming sensor is exceeding the alarm setpoint. For example, if the setpoint is at 50% and an alarm comes in at 55%, the audible alarm would give short beeps every eight seconds. As the alarm level increases from 55% to 100%, the beeps become longer in duration until a solid tone appears at 100%. To select the solid-on audible alarm mode, jumper H1-6 must be inserted. To select the variable-on audible alarm mode, jumper H1-6 must be removed. In both modes, pressing the reset button will silence the audible alarm, but will not have any effect on the alarm LED on the front panel or the alarm relay. Full Scale H2-2 H2-1 999 out out 250 out in 100 in out 10.0 in in 2-5
TGM1 Section 2 Setup & Calibration Analog Output Adjustment: (Optional) The analog output (4-20 ma) is factory calibrated and should not require adjustment. It does not drift because it is digitally controlled by the micro-processor. If adjustments are required, a ZERO and SPAN potentiometer can be used to perform these. To adjust the output to 4-20 ma for 0-100% input (factory setting) apply a 0% (4 ma) signal to the input and adjust the ZERO potentiometer until the output reads 4 ma. Then apply a 100% (20 ma) signal to the input and adjust the SPAN potentiometer until the output reads 20 ma. If using RS-485 type sensors, a 0% and 100% input can be obtained by making sure the sensor is not exposed to any gas, or ideally by disconnecting the sensor (the Sensor Fail will then activate - ignore it) for a 0% signal and by inserting the 100% jumper on the back of the sensor board for a 100% signal. 2-6
TGM1 Section 3 General Operation Section 3 General Operation Auto-Ranging: The TGM1 automatically detects the type of sensor connected on an RS-485 bus and determines its full scale value. All setpoints and the display are adjusted accordingly to match the various sensors full scale levels. If an analog sensor is connected, the display must be manually adjusted for the appropriate sensor scale using the display mode jumpers (see Setup and Calibration). Sensor Failure: If the TGM1 loses communications with the RS-485 sensor, or if the sensor fails, the sensor OK LED will turn off and the sensor fail relay will activate. If an analog sensor is used and the impulse is less than 3 ma, the sensor OK LED will turn off and the sensor fail relay will activate. Warning and Alarm: If the level of the sensor exceeds the warning setpoint, the warning LED will turn on and the warning relay will activate. No alarm is sounded. If the sensor input drops below the warning setpoint, the warning LED will turn off and after a delay defined by jumper H1-5 (and the potentiometer), the relay will return to its inactive state. If the level of the sensor exceeds the alarm setpoint, the alarm LED will turn on and after a delay defined by jumper H1-5 (and the potentiometer), the relay will activate. At the same time the relay activates, the audible alarm is sounded. The audible alarm may be silenced by pressing the reset button. If the sensor drops below the alarm setpoint, the alarm LED will turn off, the alarm will silence (if not silenced already by reset button) and the alarm relay will deactivate if jumper H1-9 is not inserted. If jumper H1-9 is inserted, then the alarm relay will not deactivate automatically once the sensor drops below the alarm setpoint. The relay will only deactivate once the reset button is pressed. 3-1
TGM1 Section 4 Start-Up Procedure Section 4 Start-Up Procedure for TGM1 A B (A = Remote Sensor B = TGM1 Monitor) Loosen the locking screws on front cover to open door. Check wiring and locate the power switch on main circuit board inside enclosure. Loosen the locking screws on front cover and open the sensor. Check wiring. * Binary Coded Jumper on H1-1 is properly inserted to address the remote sensor. (If RS-485, 4-wire connection to TGM1 Monitor is used). Turn power ON. * Green LED (POWER) Indicator on front panel should be ON. Green LED (Sensor OK) Indicator on front panel should be ON. * Red LED (SENSOR FAIL) Indicator on front panel should be OFF. * Amber LED (WARNING) Indicator on front panel should be OFF. * Red LED (ALARM) Indicator on front panel should be OFF. Note: Warning LED and Alarm LED may come on during initial power up. If audible alarm sounds, press RESET button to silence. IMPORTANT: Allow the gas monitor and sensor** to stabilize. * Applicable only to MSA UNTGS Sensor/Transmitter. ** Refer to Sensor/Transmitter manual for stabilization time. 4-1
TGM1 Section 4 Start-Up Procedure A B (A = Remote Sensor B = TGM1 Monitor) Ensure that delay function selection jumper on main circuit board is NOT inserted. * Insert Test Jumper to 100% test position. Red LED (SENSOR FAIL), Amber LED (WARNING), Red LED (ALARM) on the Remote Sensor shall come on. (See Note 1). The audible horn sounds, Amber LED (WARNING) and Red LED (ALARM) on TGM1 Monitor shall also come on. (Press the RESET BUTTON to silence horn). Note: Warning and Alarm Relays are now energized. Any remote equipment which may be connected to the associated relay contacts should now be activated. Note: TGM1 Monitor is factory preset as follows: WARNING Level: 35% of Full Scale ALARM Level: 50% of Full Scale Audible Signal: Comes on at ALARM level Delay Function: No Delay (jumper not inserted) The MSA TGM1 Monitor allows for field adjustment from factory settings. Please refer to Section 2 of this manual to change settings in order to meet the required sequence of operation. * Remove Test Jumper from 100% test position. The initial function test and start-up is now completed. Close front door and sensor cover and secure locking screws. Note: Remote Sensor, other than MSA UNTGS Series Sensor, must use calibration check gas to simulate alarm condition. Applicable only to MSA UNTGS Sensor/Transmitter. 4-2
TGM1 Section 4 Calibration Log Calibration Log DATE READING RESET DATE READING RESET 4-3
TGM1 Section 4 Calibration Log Calibration Log DATE READING RESET DATE READING RESET 4-4
TGM1 Section 4 Parts List Parts List MSA TGM1 Monitor * When ordering replacement parts, Please state MSA s P/N and S/N of unit. Item TGM1 Mother Board (110 Vac Version) TGM1 Display Board (w/o Display) TGM1 Display Board (w/ Display) Ribbon Cable Assembly MSA Part No. 213110 213111 213112 213113 Use only genuine MSA replacement parts when performing any maintenance on the TGM1 Monitor. Failure to do so may seriously impair instrument performance. Repair or alteration of the TGM1 Series Monitor beyond the scope of the instruction manual could cause the product to fail to perform as designed. Disconnect all power source(s) to the TGM1 before removing or changing any components. 4-5
TGM1 Section 5 Figure 1 Section 5 Figure 1: TGM1 Enclosure Drawing 5-1
TGM1 Section 5 Figure 2 Section 5 Figure 2: TGM1 Wiring Drawing 5-2
TGM1 Section 5 Figure 3 Section 5 Figure 3: TGM1 Panel/Layout Connection 5-3
TGM1 Section 5 Figure 4 Section 5 Figure 4: TGM1 Series Freon Panel Layout/Connection 5-4
TGM1 Section 5 Figure 5 Section 5 Figure 5: TGM1 Series RS-485 Serial Communication Type Sensor 5-5
TGM1 Section 5 Figure 6 Section 5 Figure 6: TGM1 Field Connection Diagram of 4-20 ma Analog Signal Type Sensor 5-6
TGM1 Section 5 Figure 7 Section 5 Figure 7: TGM1 Sensor Wiring Diagram 5-7
TGM1 Section 6 CSA Certification & FCC Compliance Section 6 CSA Certification Certificate of Compliance No. LR 51078-5 FCC Compliance This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. Device may not cause harmful interference. 2. Device must accept any interference received, including interference that may cause undesired operation. NOTE This equipment has been tested and found to comply with the limits for 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. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction 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 or her own expense. Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment. 6-1
TGM1 Appendix A Figure 8A Appendix A Figure 8A: Troubleshooting Guide for TGM1 A - 1
TGM1 Appendix A Figure 8B Appendix A Figure 8B: Troubleshooting Guide for TGM1 A - 2
TGM1 Appendix A Figure 8C Appendix A Figure 8C: Troubleshooting Guide for TGM1 A - 3
TGM1 Appendix A Figure 8D Appendix A Figure 8D: Troubleshooting Guide for TGM1 A - 4
Manufactured by MSA Canada Inc. TORONTO, ONTARIO, CANADA M3N 1X8 Call Toll Free @ 1 (800) 267 0672