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- MGS-150
- Installation And Operation Manual
Bacharach MGS-150 Installation And Operation Manual
Summary of MGS-150
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Gas detector installation and operation manual instruction 6309-9000 revision 2 – february 2013 product leadership • training • service • reliability.
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Mgs-150 manual 2 6309-9000 rev 2 warranty policy bacharach, inc. Warrants this instrument, excluding sensors, to be free from defects in materials and workmanship for a period of two years from the date of purchase by the original owner. The sensors have a warranty period of one year from the date o...
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Mgs-150 manual 6309-9000 rev 2 3 performing all needed repairs to restore the instrument to full operating condition. Prior to shipping equipment to bacharach, contact our office for an rma # (returned merchandise authorization). All returned goods must be accompanied with an rma number. Pack the eq...
Page 4: Table Of Contents
Mgs-150 manual 4 6309-9000 rev 2 table of contents section 1. Overview .................................................................................... 5 1.1. General information..................................................................................... 5 1.2. Technical specifications ...
Page 5: Section 1. Overview
Mgs-150 manual 6309-9000 rev 2 5 section 1. Overview 1.1. General information the mgs-150 is a state-of-the-art fixed gas detector which can detect a wide range of different gases. The gas sensors can be used on a stand- alone basis or integrated into controls or building management systems (bms). T...
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Mgs-150 manual 6 6309-9000 rev 2 1.2. Technical specifications specification description power supply 12-24 vdc, 12-24 vac 50/60 hz, 2 w max. Power monitoring green led visual alarm red led audible alarm buzzer, enable/disable fault monitoring red led (on); green led (off) analog outputs 4-20 ma; 0-...
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Mgs-150 manual 6309-9000 rev 2 7 note: the hazardous area exd gas monitor products are designed with individually certified exd main housing enclosures and certified exd remote or attached sensor enclosures. The main housing enclosure and its pcb assembly are also exd certified, but the final exd ga...
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Mgs-150 manual 8 6309-9000 rev 2 section 2. Installation and wiring warning: explosion hazard! Do not mount the mgs in an area that may contain flammable liquids, vapors, or aerosols. Operation of any electrical equipment in such an environment constitutes a safety hazard. Caution: the mgs contains ...
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Mgs-150 manual 6309-9000 rev 2 9 2.1. General placement guidelines note: the mgs-150 should be installed plumb and level and securely fastened to a rigid mounting surface. Sensors must be located within the appropriate wire lengths from the central control unit (if used). In all cases the sensor sup...
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Mgs-150 manual 10 6309-9000 rev 2 figure 2. Ec or ir sensor components and wiring.
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Mgs-150 manual 6309-9000 rev 2 11 figure 3. Sc sensor components and wiring.
Page 12: 2.3. Machinery Rooms
Mgs-150 manual 12 6309-9000 rev 2 item description enclosure access to open the standard sensor enclosure, turn the cable clamp 1/2 turn counter-clockwise to loosen the internal nut, depress the clip on top of the enclosure and open. Reverse to close. Power 12-24v ac/dc, connect at positions 0v and ...
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Mgs-150 manual 6309-9000 rev 2 13 most common leak sources are valves, gauges, flanges, joints (brazed or mechanical), filling or draining connections, etc. • when mechanical or natural ventilation is present, mount a sensor in the airflow. • in machinery rooms where there is no discernable or stron...
Page 14: 2.4. Refrigerated Spaces
Mgs-150 manual 14 6309-9000 rev 2 2.4. Refrigerated spaces in refrigerated spaces, sensors should be located in the return airflow to the evaporators on a sidewall (below head-high is preferred), or on the ceiling, not directly in front of an evaporator. In large rooms with multiple evaporators, sen...
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Mgs-150 manual 6309-9000 rev 2 15 2.6. Air conditioning (direct systems vrf/vrv) for compliance with en378, at least one detector shall be installed in each occupied space being considered and the location of detectors shall be chosen in relation to the refrigerant and they shall be located where th...
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Mgs-150 manual 16 6309-9000 rev 2 2.7. Remote sensor head installation if you do not wish to surface mount the mgs, a brushed stainless steel faceplate is available. The remote sensor is mounted in an electrical back box 1.7 in (44 mm) deep to which the vented faceplate is fitted. Caution: to avoid ...
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Mgs-150 manual 6309-9000 rev 2 17 section 3. Housing dimensions figure 4. Mgs-150 standard housing.
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Mgs-150 manual 18 6309-9000 rev 2 figure 5. Ip66 housing with splashguard.
Page 19: Figure 7. Exd Housing
Mgs-150 manual 6309-9000 rev 2 19 figure 6. Ip66airflow duct mount housing figure 7. Exd housing units = mm.
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Mgs-150 manual 20 6309-9000 rev 2 for dimensions and mounting locations , see figure 5. Figure 8. Ip66 housing with remote sensor head note: for the exd remote sensor head and 16.4 ft (5 m) cable, the thread varies based on the model. 9.8 feet (3 meters) typical.
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Mgs-150 manual 6309-9000 rev 2 21 section 4. Operation and stabilization on powering up, the mgs-150 will sense for the presence of gas after an initial warm-up delay of 5 minutes. The green led will flash at 1 second intervals during the warm-up. In an alarm condition: • green led stays on and the ...
Page 22: 5.1. Overview
Mgs-150 manual 22 6309-9000 rev 2 section 5. Configurations 5.1. Overview function description time delay available on the audible alarm and relay to avoid false alarms. This is set with jumpers. The default delay is 0 minutes. You may wish to set to 15 minutes during start up. See figure 2 and figu...
Page 23: 6.1. Introduction
Mgs-150 manual 6309-9000 rev 2 23 section 6. Functional tests and calibration 6.1. Introduction to comply with the requirements of en378 and the european f-gas regulation, sensors must be tested annually. However, local regulations may specify the nature and frequency of this test. Caution: check lo...
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Mgs-150 manual 24 6309-9000 rev 2 important: failure to test or calibrate the unit in accordance with applicable instructions and with industry guidelines may result in serious injury or death. The manufacturer is not liable for any loss, injury, or damage arising from improper testing, incorrect ca...
Page 25: 6.2. Bump Testing
Mgs-150 manual 6309-9000 rev 2 25 bump test exposing the sensor to a gas and observing its response to the gas. The objective is to establish if the sensor is reacting to the gas and all the sensor outputs are working correctly. There are two types of bump test. Quantified: a known concentration of ...
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Mgs-150 manual 26 6309-9000 rev 2 note: prior to carrying out a bump test, check and adjust the zero setting as described in the calibration section. Note: procedures for bump test and calibration vary depending on the sensor technology used and the gas in question. The mgs is available in three sen...
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Mgs-150 manual 6309-9000 rev 2 27 figure 9. Gas cylinder and test hardware gas ampoules are convenient and inexpensive alternatives to using gas cylinders for bump testing. Step bump testing using gas ampoules 1 make sure that both the ampoules and the calibration beaker are clean and dry. 2 unscrew...
Page 28: 6.3. Calibration Overview
Mgs-150 manual 28 6309-9000 rev 2 step bump testing using gas ampoules 7 tighten the wing-nut screw onto the ampoule until it shatters allowing the gas to diffuse in the beaker. It should be left in place for approximately 5 min. 8 the voltage output will increase. This confirms that the sensor is r...
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Mgs-150 manual 6309-9000 rev 2 29 6.4. Calculating calibration voltage sensor outputs are linear. As long as you have a gas cylinder of known concentration you can calibrate to any desired range. Example: for a sensor range of 0-1000 ppm and a cylinder of the target gas at 800 ppm: ??????? = ?????? ...
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Mgs-150 manual 30 6309-9000 rev 2 6.6. Calibrating electrochemical (ec) sensors there are two adjustments required: zero and span. They are monitored at 0v and vs using a 0-5v scale. If the sensor range is 0-1000 ppm, then 5v=1000 ppm. Step calibrating electrochemical (ec) sensors 1 locate pot vr201...
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Mgs-150 manual 6309-9000 rev 2 31 section 7. Troubleshooting symptom possible cause(s) green and red light off • check power supply. Check wiring. • mgs-150 was possibly damaged in transit. Check by installing another mgs-150 to confirm the fault. Red light on, green led off (indicates a fault) • se...
Page 32: Eclaration
Mgs-150 manual 32 6309-9000 rev 2 d eclaration of c onformity the manufacturer of the products covered by this declaration: bacharach, inc. 621 hunt valley circle new kensington, pa 15068 year conformity is declared: 2012 product(s): mgs model(s): mgs transmitter the undersigned hereby declares that...
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Mgs-150 manual 6309-9000 rev 2 33.
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Mgs-150 manual 34 6309-9000 rev 2.
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Mgs-150 manual 6309-9000 rev 2 35.
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Mgs-150 manual 36 6309-9000 rev 2 world headquarters 621 hunt valley circle, new kensington, pennsylvania 15068 phone: 724-334-5000 • toll free: 1-800-736-4666 • fax: 724-334-5001 website: www.Mybacharach.Com • e-mail: help@mybacharach.Com.