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Point Type Four Gas Detector-TCB2-F - Otywell

Fixed Gas Detector/

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Point Type Four Gas Detector-TCB2-F

 

 

TAG: otywell  gas detector ，Fixed  gas detector  multi gas detector ，Fixed 4 Gas detector

 

E-mail:inquiry@otywell-safety.com

Mobile/WhatsAPP:+8616692113216

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  • Product Details

Description

This product integrates high-performance gas-sensitive components and microcontroller technology with precision SMD manufacturing, delivering outstanding repeatability, reliable temperature/humidity performance, strong anti-interference capability, extended service life, and user-friendly operation. Designed for gas concentration and leakage detection, it converts ambient gas concentration signals into electrical signals. The output supports three-wire (4-20) mA current signals, RS485 four-wire bus signals, or two-wire configurations, featuring long-distance transmission and simplified wiring requirements.

This product is designed for gas safety detection, alarm, and control in environments containing gases, including gas pipelines, municipal utility tunnels, research institutions, hospitals, and schools. It is suitable for hazardous areas with explosive flammable gases classified as Grade II A to II C and temperature ranges of T1 to T6.

Technical Parameters

  • Detection Method: Natural Diffusion / Pump Suction
  • Detection Principle: Catalytic Combustion, Electrochemical, Semiconductor, Infrared, Laser, etc.
  • Accuracy Class: ±3%FS (Combustible Gas / Oxygen); ±5%FS (Toxic Gas)
  • Low Alarm Threshold: 20%LEL (Combustible Gas)
  • High Alarm Threshold: 50%LEL (Combustible Gas)
  • Response Time T90: ≤30 s (Combustible Gas, subject to gas type)
  • Ambient Temperature: -40℃ ~ +70℃ (Digital Combustible Gas Detector); -25℃ ~ +55℃ (Toxic Gas / LCD Combustible Gas Detector)
  • Relative Humidity: 20 ~ 93% RH (Non-condensing)
  • Operating Voltage: DC24V / AC220V
  • Display Mode: LCD Display / Digital Tube Display
  • Output Signal: 3-wire 4~20mA, 4-bus RS485, 2-bus MBUS output, etc.; Optional LoRa / NB-IoT / 4G wireless data upload function
  • Pressure Range: 86 kPa ~ 106 kPa
  • Explosion-proof Certificate No.: CCRI 25.1414X
  • Explosion-proof Mark: Ex db ⅡC T6 Gb / Ex tb ⅢC T80℃ Db
  • Ingress Protection Rating: IP66
  • Product Weight: ≤1100g
  • Product Dimension: L 150 mm × W 140 mm × H 73 mm

 

TAG: otywell  gas detector ，Fixed  gas detector  multi gas detector ，Fixed 4 Gas detector

 

E-mail:inquiry@otywell-safety.com

Mobile/WhatsAPP:+8616692113216

 

Note: Not all gases and range are listed, if you need more information, please contact us.

 

Gas Measuring range Optional range Resolution Response time
 EX 0-100%LEL 0-100%VOL (infrared) 1%LEL/1%VOL ≤15second
 O2 0-30%VOL 0-30%、0-100%VOL 0.1%/0.01%VOL ≤15second
H2S 0-100PPM 0-50、200、1000PPM 0.1/1PPM ≤15second
CO 0-1000PPM 0-500/2000/5000PPM 0.1/1PPM ≤15second
NO2 0-20PPM 0-50、1000PPM 0.1/1PPM ≤20second
Natural gas 0-100%LEL 0-100%VOL 1%LEL/1%VOL ≤15second
NOX 0-20PPM 0-50、1000PPM 0.1/1PPM ≤20second
CH4 0-100%LEL 0-100%VOL 1%LEL/1%VOL ≤15second
 CO2 0-5000PPM 0-1%、5%、10%VOL (infrared) 1PPM/0.01%VOL ≤20second
NO 0-250PPM 0-500、1000PPM 1PPM ≤20second
N2 0-100%VOL 0-100%VOL 0.1%VOL ≤15second
Alcohol 0-100%LEL 0-100%LEL 1%LEL/1%VOL ≤15second
SO2 0-20PPM 0-50、1000PPM 0.1/1PPM ≤20second
CL2 0-20PPM 0-10、50、100PPM 0.1PPM ≤20second
dichlorosilane 0-20PPM 0-20、100PPM 1/0.1PPM ≤20second
NH3 0-100PPM 0-50、500、1000PPM 0.1/1PPM ≤20second
Silicon tetrachloride 0-20PPM 0-20、100PPM 1/0.1PPM ≤20second
H2 0-1000PPM 0-40000PPM 1/10PPM ≤20second
PH3 0-20PPM 0-20、1000PPM 0.1/1PPM ≤20second
 HCL 0-20PPM 0-20、50、100PPM 0.1/1PPM ≤20second
Acrylonitrile 0-100PPM 0-100PPM 1PPM ≤20second
TVOC 0-100PPM 0-100PPM 1PPM ≤20second
CLO2 0-50PPM 0-10、100PPM 0.1PPM ≤20second
HCN 0-50PPM 0-100PPM 0.1PPM ≤20second
 ETO 0-10PPM 0-100、1000PPM 1PPM ≤20second
 O3 0-10PPM 0-20、100PPM 0.01/0.1PPM ≤20second
 CH2O 0-20PPM 0-50、100PPM 0.1/1PPM ≤20second
 F2 0-10PPM 0-1、10PPM 1/0.1PPM ≤20second
 HF 0-10PPM 0-1、10、50、100PPM 0.01/0.1PPM ≤20second
Xylene, toluene 0-20PPM 50、100PPM 0.1/1PPM ≤20second
Stench 0-100PPM 0-100PPM 1PPM ≤20second
For unlisted gas, please contact our sales department

Note: Not all gases and range are listed, if you need more information, please contact us.

TAG: otywell  gas detector ，Fixed  gas detector  multi gas detector ，Fixed 4 Gas detector

 

E-mail:inquiry@otywell-safety.com

Mobile/WhatsAPP:+8616692113216

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