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QB2000N-P is a fixed gas ***ecting transmitter, with 4-20 mA or RS485 ModBus RTU output proportional to the gas leakage concentration with original imported catalytic combustion sensor for combustible gas and electro chemical sensor for toxic gas and oxygen.. It monitors gas leakage with a soft pipe, connecting the pipe line and the ***ector gas inlet. The intelligent module sensor ***ects the gas passing through. It is flexible, durable, accuracy, stable and etc. and it can be directly connected with DCS systems or Central unit. With relay output, once the concentration exceed the preset alarm point(threshold) it will start the acoustic-optical alarm on the central unit and drive the external equipment like exhaust fans.
It has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
Characteristics:
¡ô4-20mA analog output(3+ channel) for direct communication to DCS system
¡ôRelay output for connecting external device
¡ôLCD display screen(LED display screen optional)
¡ôSensor module(block) design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.
¡ôPassword verification for repeat operation, avoid fault operations.
¡ô -40¡«+70℃ following compensation for 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:
1. Sensor type: catalytic combustion sensor or electro chemical sensor
2. Range: refer to the reference chart.
3. Resolution: refer to the reference chart.
4. Accuracy:<= + 3% F.S
5. Response time:T90<30s.
6. Working current:¡Ü50 Ma
7. Output signal: 4 to 20mA standard signal(RS485 output optional)
8. Power supply to the ***ector terminals: 16¡«30V DC.
9. Ambient Parameter: Temperature:£20℃~+60℃ Humidity: < 90%(without condensating)
10. Type of cable: 3 or 4 active wires screened between ***ector and centralized unit. 3¡Á1 |
| 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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