Bacharach MGS-150, Installation And Operation Manual

Page 1: ...Gas Detector Installation and Operation Manual Instruction 6309 9000 Revision 2 February 2013 Product Leadership Training Service Reliability...

Page 2: ...PPED TO THE MANUFACTURER BY PREPAID FREIGHT ALL RETURNED GOODS MUST BE PRE AUTHORIZED BY OBTAINING A RETURN MERCHANDISE AUTHORIZATION RMA NUMBER CONTACT THE MANUFACTURER FOR A NUMBER AND PROCEDURES RE...

Page 3: ...SUBJECT TO COPYRIGHT PROTECTION ALL RIGHTS ARE RESERVED NO PARTY MAY USE OR COPY SUCH SOFTWARE IN ANY MANNER OR FORMAT EXCEPT TO THE EXTENT THAT BACHARACH GRANTS THEM A LICENSE TO DO SO IF THIS SOFTW...

Page 4: ...VRV 15 2 7 Remote Sensor Head Installation 16 Section 3 Housing Dimensions 17 Section 4 Operation and Stabilization 21 Section 5 Configurations 22 5 1 Overview 22 5 2 Adjusting the Alarm Set Point 22...

Page 5: ...MGS 150 can be used in new buildings areas that require continuous monitoring with high tech gas sensor transmitters to add gas detection solutions to an existing system Typical detection application...

Page 6: ...to 50 C 40 to 50 C Dimensions Weights per Enclosure Type see Note below IP41 3 35 x 5 59 x 2 09 86 x 142 x 53 mm 6 3 oz 180 g IP66 6 89 x 6 5 x 3 29 175 x 165 x 82 mm 1 lb 6 oz 629 g IP66 w Splash Gua...

Page 7: ...t 1 x 1 1 x 2 1 5 x 1 5 2 x 2 Pi x 1 x 1 Area ft 2 1 2 2 25 4 3 14 CFM Ft min Based on CFM and Duct Size 2800 2800 n a n a n a n a 3000 3000 n a n a n a n a 3400 3400 n a n a n a n a 3800 3800 n a n a...

Page 8: ...ily accessible for visual monitoring and servicing NOTE The monitor must be connected by a marked suitably located and easily reached switch or circuit breaker as means of disconnection NOTE Connect m...

Page 9: ...bnormalities may arise include the following Plant room maintenance activity involving solvent or paint fumes or refrigerant leaks Accidental gas migration in fruit ripening storage facilities bananas...

Page 10: ...MGS 150 Manual 10 6309 9000 Rev 2 Figure 2 EC or IR Sensor Components and Wiring...

Page 11: ...MGS 150 Manual 6309 9000 Rev 2 11 Figure 3 SC Sensor Components and Wiring...

Page 12: ...d alarm test point TP1 Default factory setting is 50 of the range Time Delay A time delay for the operation of the relay and audible alarm can be selected using jumpers JP5 and JP6 Default factory set...

Page 13: ...in 300 mm of or on the ceiling provided there is no possibility of a thermal layer trapped under the ceiling preventing gas from reaching the sensor NOTE At very low temperatures e g refrigerated cold...

Page 14: ...rigerant flow VRV VRF systems mount the sensor so as to monitor airflow to the extract fan With large units also place a sensor inside the enclosure under or adjacent to the compressors In the case of...

Page 15: ...have their sensors mounted low e g at less than bed height in the case of an hotel or other similar Category Class A spaces Ceilings or other voids if not sealed are part of the occupied space CAUTION...

Page 16: ...ards from multiple units at the same time Alternatively label them or match the serial number on the main PCB and the remote sensor PCB when reinstalling 1 Remove the connector from the sensor PCB to...

Page 17: ...MGS 150 Manual 6309 9000 Rev 2 17 Section 3 Housing Dimensions Figure 4 MGS 150 Standard Housing...

Page 18: ...MGS 150 Manual 18 6309 9000 Rev 2 Figure 5 IP66 Housing with Splashguard...

Page 19: ...MGS 150 Manual 6309 9000 Rev 2 19 Figure 6 IP66Airflow Duct Mount Housing Figure 7 Exd Housing Units mm...

Page 20: ...0 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...

Page 21: ...1 5V output o 1 0V on the 2 10V output The typical time for various sensor types to stabilize is shown below Sensor Type Stabilization Time Electrochemical EC 20 30 seconds Semiconductor SC 1 3 minute...

Page 22: ...378 See Figure 2 and Figure 3 for setting the jumpers Output Decide which output is required 4 20mA 1 5V 0 10V relay outputs etc See Figure 2 and Figure 3 for setting the jumpers 5 2 Adjusting the Ala...

Page 23: ...ences in environmental conditions IMPORTANT If the MGS is exposed to a large leak it should be tested to ensure correct functionality by electrically resetting the zero setting and carrying out a bump...

Page 24: ...with locally applicable guidelines and regulations Suitably qualified operators of the unit should be aware of the regulations and standards set down by the industry country for the testing or calibr...

Page 25: ...the MGS is connected to external systems such as sprinkler systems plant shut down external sirens and beacons ventilation etc and disconnect as instructed by the customer Deactivate alarm delays if s...

Page 26: ...r a semiconductor or electrochemical sensor is exposed to a substantial gas leak the sensor should be checked and replaced if necessary NOTE To test the audible alarm and or relay function check the d...

Page 27: ...ampoule so that it sits in the base of the beaker see Figure 10 3 Tighten the wing nut screw onto the ampoule without breaking it 4 Remove the enclosure lid of the gas detector 5 Connect a voltmeter b...

Page 28: ...ampoule remains from the gas detector and beaker Figure 10 Gas Ampoules for Bump Testing 6 3 Calibration Overview There are two adjustments required zero and span They are monitored at 0V and VS usin...

Page 29: ...alibrating Semiconductor SC Sensors 1 Locate Pot P2 which is used to adjust the zero point 2 Monitor the output between 0V negative and VS positive 3 Adjust Pot P2 to 0 V or slightly positive 0 01 V i...

Page 30: ...6 Expose the sensor to calibration gas and allow to stabilize approximately 3 minutes 7 Adjust pot VR202 to the voltage calculated in section 6 4 page 29 6 7 Calibrating Infrared IR Sensors Step Calib...

Page 31: ...150 to confirm the fault Red light on green led off indicates a fault Sensor may be disconnected from printed circuit board Check to see sensor is properly inserted into board The sensor has been dama...

Page 32: ...cts are in conformity with the provisions of the following standard s and is in accordance with the following directive s Directive s 2004 108 EC EU EMC Directive 2006 95 EC Low Voltage Directive LVD...

Page 33: ...MGS 150 Manual 6309 9000 Rev 2 33...

Page 34: ...MGS 150 Manual 34 6309 9000 Rev 2...

Page 35: ...MGS 150 Manual 6309 9000 Rev 2 35...

Page 36: ...l 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 My...