Bacharach MGS-550 User Manual

Also see for MGS 550: User manual Quick start guide Installation guide Installation guide Quick start guide

Contents

Bacharach MGS-550 User Manual Manual pdf 62 page image

MGS-550 Fixed Gas Detector62 P/N: 1100-1000 Version 1SECTION 9. TECHNICAL DATA9.1 General SpecificationsCategory SpecificationsSignals toCentralControllerAnalog Current Normal operation: ..................................................... 4 to 20 mADrift below zero: ............................................................. 3.8 mAMeasuring range exceeded: ......................................... 20.5 mAInstrument fault: ........................................................... ≤ 1.2 mAFault on analog interface: .............................................> 21 mAOffline mode/Maintenance signal: ............... 3 mA steady signalAnalog Voltage 0 to 5 V; 1 to 5 V; 0 to 10 V; 2 to 10 V (selectable)During fault condition, 1 to 5 V and 2 to 10 V outputs are 0 V.Modbus RTU overRS-485Baud rate:...................................... 9,600 or 19,200 (selectable)Start bits: .................................................................................. 1Data bits: .................................................................................. 8Parity: ........................................... None, odd, even (selectable)Stop bits: ....................................................... 1 or 2 (selectable)Retry time: ............................. 500 ms, min time between retriesEnd of message: ....................................... Silent 3.5 charactersPower Supplyand RelaysOperating voltage 19.5 to 28.5 VDC; 24 VAC ± 20%, 50/60 HzPower Monitoring Green LEDInrush current 1.5 AOperating current,max.330 mA at 24 VDCRelay rating 3 SPDT, arbitrary designation1 A at 24 VAC/VDC, 0.5 A at 125 VAC, resistive loadAudible alarm Internal Buzzer ≥85 dB at 4” (10 cm); open enclosureAlarm delay 0 to 15 minutes (selectable)Wiring Power and analogsignal2-, 3-, 4-, or 6-core shielded cable, 16 to 20 AWG (0.5 to1.5 mm 2)Modbus network 2-core twisted pair shielded cable 16 to 20 AWG (0.5 to1.5 mm 2) with 120 Ohm characteristic impedanceCable gland M20x1.5, 0.24” to 0.47” (6 to 12 mm) outer cable diameterPhysicalSpecificationsEnclosure andsensor housingGeneral Purpose (GP): ABSExplosion Proof (XP): AluminumEnclosure protection IP66Display 5 digit, 7 segment LEDEnclosure Size(WxHxD) (Approx.)General Purpose (GP): 210x225x85 mm (8.3x8.9x3.1 in)Explosion Proof (XP): 125x190x90 mm (4.9x7.5x3.5 in)Weight (Approx.) General Purpose (GP): 1 kg (2 lbs)Explosion Proof (XP): 1.6 kg (3.5 lbs)www. .com information@itm.com1.800.561.8187