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Introductions:
QB2000N flammable-gas transmitter is a microprocessor based intelligent sensor transmitter. Which provides 4-20 mA output and ModBus RTU output proportional to theflammable gas concentrationand has LED(LCD optional) digital display real-time gas concentration. Its RS485 digital signal is for communication. It easy to operate, reliable and has full functions, making it a leader in the nation. It has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
Characteristics:
¡ôSensor types: Catalytic sensor.
¡ô4-20mA analog output(3+ channel) for direct communication to DCS system and RS485 ModBus output
¡ôSensor module design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.
¡ô LED Display(LCD optional)
¡ôPassword verification for repeat operation, avoid fault operations.
¡ô-40¡«+70℃ following compensationfor accurate ***ecting.
¡ô Second grade visual alarms on-site and Relay(connected with audible/visual alarms or drive exhaust device).
¡ôUser-selectable alarm setpoint(s).
Technical Parameters:
¡ôRange£ºrefer to the chart following.
¡ô Working voltage£º24VDC¡À15%
¡ôSignal output£º4¡«20mA linear current output£» or RS485 ModBus output
¡ôResponding time£ºT90 less than 30 seconds
¡ôRecovering time: less than 30 seconds
¡ôResolution£ºsee the chart
¡ôAccuracy: ¡À3%F.S
¡ôDisplay model: LED display (LCD optional)
¡ôEnvironment temperature: -30¡«+60℃(upon the sensor specific)
¡ôEnvironment humidity: 10-95% R.H.(non-condensating)
¡ôExplosion-proof: Exd IICT6(for explosion proofing); ExiaIICT4(for intrinsic safety type)
¡ôIngress protection: IP66
¡ôScrew size: M20¡Á1.5¡¢G1/2
¡ô Cable£º Shield cable of 3¡Á1.5mm2 or 4¡Á2.5mm2 Transmission Distance£º¡Ü1000m
¡ôDimension and weight£º 160mm(L)140mm(W)85mm(H) about 1.5kg
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| Company: |
Henan Chicheng Electronics Co.,Ltd
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| Contact: |
Ms. doris Lee |
| Address: |
Block 2, NO.11 Changchun Road, High-tech Developing District, |
| Postcode: |
450001 |
| Tel: |
86-371-80621122 |
| Fax: |
86-371-80632929 |
| E-mail: |
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