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Henan Chicheng Electric Co., Ltd

NO11 changchun road,Zhengzhou,Henan,China

查看电话号码

免费会员

Wall-mounted H2S hydrogen sulfide gas detector

China

QB2000N/T

160 ~ 260 / Unit ( Negotiable ) 获取最新报价

-

160 per Unit

1 Unit

in carton box

2-5 days

5000 Unit per Month

T/T, L/C, D/A, D/P, Western Union, Money Gram, PayPal

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产品规格

Response time : T90<30s Protection Class : IP66 output : RS485 output or 4~20mA Power supply to the detector terminals : 16~30V DC Optional : Audible-visual alarm IP grade : IP66

详情

Product Description

 

QB2000N/T is a Wall-mounted H2S hydrogen sulfide gas detector, with 4-20 mA or RS485 ModBus RTU output proportional to the ethylene gas leakage concentration with original imported electro-chemical sensor. It monitors ethylene gas leakage by natural diffusion. 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 ethylene gas 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:

  • 4-20mA analog output(3+ channel) for direct communication to DCS system, RS485 ModBus output for central unit
  • Relay output for connecting external device
  • LCD display screen(LED display screen optional)
  • Sensor module(block) design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.
  • Password verification for repeat operation, avoid fault operations.
  •  -40~+70°C following compensation for accurate detecting.
  •  Second grade visual alarms on-site and Relay(connected with audible/visual alarms or drive exhaust device).
  • 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 Index:

 

1. Sensor type: original imported electro-chemical sensor for H2S gas 

2. Range: 0-100ppm

3. The low alarm suggest value: 10ppm. High alarm value suggested: 20ppm.

4. Resolution: 0.1ppm Accuracy:<= + 3% F.S

5. Response time:T90<30s.

6. Working current:≤50 Ma

7. Output signal: 4 to 20mA standard signal(RS485 output optional)

8. Power supply to the detector terminals: 16~30V DC.

9. Ambient Parameter: Temperature:- 20°C~+60°C Humidity: < 90%(without condensating)

10. Type of cable: 3 or 4 active wires screened between detector and centralized unit. 3×1.5mm2 for 4-20mA signal OR 4*1.5mm2 for RS485 signal, external diameter >=10mm

11. Transmition Distance:<=1000meter

12. Mounting Screw thread: G1/2.

13. Weight: 1200g.

14. Anti-explosion Class: Ex d IICT6Gb

15. Protection Class:IP66.

联系我们

联系人:Ms. Annie

公司名称:Henan Chicheng Electric Co., Ltd

办公地址:NO11 changchun road, Zhengzhou, Henan, China,450001

电话号码:

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移动电话:

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至,

Ms. Annie < Henan Chicheng Electric Co., Ltd >
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