4-20mA/RS485 H2 Hydrogen Leak Gas Detector with Alarm
| Place of Origin | Henan, China |
|---|---|
| Brand Name | chicheng |
| Certification | CE |
| Model Number | QB2000N |
| Price | $240.00 - $320.00/Pieces |
| Packaging Details | Size of packaging box is: 21.5*17*10cm. Net weight is 1.6 kg/pc. Gross weight is 2.0kg/pc. |
| Supply Ability | 3000 Piece/Pieces per Month |
| Material | Stainless Steel | Output Signal | 4-20mA Or RS485 |
|---|---|---|---|
| Ex-proof Grade | Ex DIICT6 GB | IP Grade | IP66 |
| Sensor | Catalytic Combustion Or Electro-chemical Sensor | Working Temperature | -20~60 Degree |
| Detected Way | Natural Diffusion | Usage | Combustible Gas, Toxic Gas And Oxygen Gas Detection |
| Size Of External Carton | 27*23*13cm | Warranty | Free Calibration And Free Warranty Within A Year |
| Port | Tianjin, Qingdao, Shanghai, HK Etc. |
4-20mA/RS485 H2 Hydrogen Leak Gas Detector with Alarm
- 4-20 mA or RS485 ModBus RTU output proportional to the gas leakage concentration.
- Flexible, durable, accuracy, stable etc.
- Can be directly connected with DCS systems or Central unit.
- With relay output, It has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
Features:
- 4-20mA analog output for direct communication to DCS system, RS485 ModBus outputfor central unit
- Relay output for connecting external device
- LCD display screen (LED display screen optional)
- Sensormodule (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 parameters:
| Model | QB2000N/T |
| Detect gas | Combustible gas, toxic gas and oxygen |
| Operating range | See the attached chart |
| Accuracy | 3% F.S |
| Response time | T90<30s |
| Operating temperature | -20~+60 degree |
| Humidity | <90%RH non-condensation |
| Working current | <=50 Ma |
| Output signal | 4~20mA standard signal (RS485 output optional) |
| IP grade | IP66 |
| Net weight | About1200g |
| Mounting screw thread | M20*1.5 or G1/2 |
| Transmition distance | <=1000meter |
| Power supply to the detector terminals | 16~30V DC |
| Alarm indication | > 85dB the higher of buzz frequency, the higher gas concentration is |
| Anti-explosion class | Ex d IICT6Gb |
Packaging & shipping:
Size of packaging box is: 21.5*17*10cm. Net weight is 1.6 kg/pc. Gross weight is 2.0kg/pc.
-Fast delivery:
Sample order in stock and 3-7 working days for bulk production.
-Payment:
You can pay for the order via T/T, Western Union, PayPal & Money Gram.
-Shipping:
We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, CHINA AIR POST.
You also can choose your own shipping forwarder.
Our service:
a. All products will have been strictly Quality Checked before packaging.
b. All products will be well packaged before shipping.
c. All the similar products have two years warranty. The calibration within one year is FOC with the fright cost charged. And we promise the products will be free from maintenance within warranty period.
Installation Position:
Upon the gas detected weight compared with the air under the same condition of temperature and pressure, if its weight is lighter than the air, e.g. CH4, the position should be 2m—3.5m higher than the gas leakage source; While if its weight is heavier than the air, the position is 0.36—0.6m higher than the ground.
Company Information
Henan Chicheng Electric Co., Ltd is a ISO9001-2000 certified high-tech import and export company and also the government permitted gas detecting device manufacture with Measurement of production License (MC), The explosion-proof certificate (EX) and Fire type certificate (CNAS) approved, we are in in the research and marketing a range of portable and fixed gas detection products, industrial process automation control, safety protection and analytical instrument and we are in Zhengzhou Henan China.
We aim at providing customers quality product. Each properly suited to its task, timely service and support. Sincerely welcome customers worldwide.
Your questions will be highly appreciated, please feel free to contact us.
Thank you for visiting~~