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| Product Name: |
Economic Gas Alarm For Industry Security
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| Supply Ability: |
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| Related proudcts |
gas alarm, gas ***ector, gas monitor, |
| Specifications |
QB2000N |
| Price Term: |
FOB, CIF |
| Port of loading: |
Tianjin, Qingdao, Shanghai |
| Minimum Order |
1 |
| Unit Price: |
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Characteristics:
&©|8226; 4-20mA analog output for direct communication to DCS system, RS485 ModBus outputfor central unit
&©|8226; Relay output for connecting external device
&©|8226; LCD display screen(LED display screen optional)
&©|8226; Sensormodule(block) design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.
&©|8226; Password verification for repeat operation, avoid fault operations.
&©|8226; -40~+70℃ following compensation for accurate ***ecting.
&©|8226; Second grade visual alarms on-site and Relay(connected with audible/visual alarms or drive exhaust device).
&©|8226; User-selectable alarm setpoint(s).
Note: QB2000N is with the digital display screen but QB2000T is without the digital display screen. The visual and audible alarm is optional.
Technical parameters:
&©|8226;Sensor type: original imported electro-chemical sensor or catalytic combustion sensor.
&©|8226; Range: see the attached chart
&©|8226; Resolution: 1% LEL,0.1%VOL, 1ppm or 0.1ppm
&©|8226; Accuracy:<= + 3% F.S
&©|8226; Response time:T90<30s.
&©|8226; Working current:¡Ü50 Ma
&©|8226; Output signal: 4 to 20mA standard signal(RS485 output optional)
&©|8226; Power supply to the ***ector terminals: 16~30V DC.
&©|8226; Ambient Parameter: Temperature:-20℃~+60℃ Humidity: < 90%(without condensating)
&©|8226; Type of cable: 3 or 4 active wires screened between ***ector and centralized unit. 3¡Á1.5mm2 for 4-20mA signal OR 4*1.5mm2 for RS485 signal, external diameter ¡é>=10mm
&©|8226;Transmition Distance:<=1000meter
&©|8226;Mounting Screw thread: G1/2.
&©|8226;Weight: 1200g.
&©|8226;Anti-explosion Class: Ex d IICT6Gb
&©|8226;Protection Class:IP66.
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| Company: |
Henan Chicheng Electric CO.,LTD.
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| Contact: |
Ms. Annie Wang |
| Address: |
No.11, Changchun Road |
| Postcode: |
450001 |
| Tel: |
+86-371-86621122 |
| Fax: |
+86-371-68631668 |
| E-mail: |
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