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TCB2-B Pump-Suction Point-Type Gas Detector

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TCB2-B Pump-Suction Point-Type Gas Detector

TCB2-B Pump-Suction Point-Type Gas Detector

Draw a gas sample at a fixed point and connect local warnings to the plant control system.

  • Reach the monitored point

    The listed built-in pump and stainless inlet pipe support sample intake at the selected installation.

  • Warn at the detector

    Configurable setpoints and integrated sound and light indication help nearby personnel see an alarm.

  • Send status upstream

    Listed switching and signal outputs support PLC or DCS integration; modular sensing aids planned maintenance.

Confirm gas, sample line, mounting, output signal and maintenance access.

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Overview

The TCB2-B pump-suction filter gas detector is an intelligent multifunctional gas detection instrument. The device employs high-performance detection components and computer microcontrol technology, combined with advanced fully automated assembly processes. The product features on-site buzzer indication and flashing indicator lights, providing real-time display and monitoring of gas concentration at the detection site.

The TCB2-B multifunctional point-type gas detector draws airborne gases into the detection unit via an integrated vacuum diaphragm pump, converting concentration signals into electrical signals for display and remote transmission. It employs a three-wire system (4～20) mA or four-wire RS485 bus output, featuring long transmission range and excellent interference resistance. The product is equipped with an integrated audio-visual alarm system, offering high detection sensitivity and rapid response speed. It is suitable for extraction-type detection in various environments.

The TCB2-B pump-suction filter gas detector is suitable for industrial environments requiring explosion-proof, poisoning-proof, and asphyxiation-proof protection, including chemical plants, smelting and papermaking facilities, refrigeration and fire protection systems, gas-powered catering establishments, rubber processing plants, wastewater treatment plants, pharmaceutical and casting facilities, petroleum refining and petrochemical plants, mining and power plants, fire and municipal infrastructure, and telecommunications systems.

Key Features

Gas Sensing & Sampling

  • Built-in vacuum diaphragm pump for sensitive detection
  • Non-destructive testing, gas composition remains unchanged after sampling detection
  • Modular sensor for easy maintenance
  • Wide range of detectable gases
  • High sensitivity; stable and reliable
  • Dust & moisture removal, automatic air intake

Local Warnings & Diagnostics

  • Configurable alarm setpoints
  • Integrated audible & visual alarm

Signals & Integration

  • Data uploadable to PLC, DCS and other control systems
  • 2 groups of switch output signals
  • 2-channel digital output
  • Optional 4-20mA or four-wire bus signal output

Operation & Calibration

  • Support wireless infrared remote control
  • Field calibration capability
  • LCD display screen with Chinese menu
  • Digital display

Installation & Protection

  • Stainless steel air inlet pipe
  • On-site pipeline
  • On-site installation diagram
  • IP65 waterproof and dustproof
  • Explosion-proof design

Service & Options

  • OEM, ODM, & OBM:

Technical Specifications

Applicable gas  combustible, toxic hazardous gas, oxygen, liquid vapor, TVOC etc.
Sampling method  pump suction
Detection principle  catalytic bead, electrochemical, infrared, PID, semiconductor
Measuring range  3~100%LEL; other ranges customizable on request
Status indication  LCD display
Commissioning mode  remote controller
Alarm mode  audible & visual alarm
Response time  ≤30s (combustible), according to gas type
Ambient temperature  -40℃~+70℃ (combustible); -25℃~+55℃ (toxic)
Relative humidity  20~93%RH, non-condensing
Operating voltage  DC24V±15%
Mounting thread  G1/2
Output signal  4~20mA/ RS485 etc.
Connection cable  ≥1.5mm²×3; ≥1.5mm²×4
Max distance between detector and controller  ≤1500m
Product weight  ≤3000g

Videos

Available Gases & Detection Ranges

The gases and ranges below are configuration options. TCB2-B Pump-Suction Point-Type Gas Detector; confirm the final sensor combination and ranges with our team.

Common Gas Parameter listing
Gas detected Measuring Range Optional Range Resolution Rat Response Time
LEL -combustible gas 0-100%LEL 0-100%VOL (Infrared or catalytic ) 1%LEL/1%vol ≤10s
carbon monoxide 0-1000PPm 0-500/2000/5000PPm 0.1/1PPm ≤10s
TVOC 0-100PPM 0-100PPM 0.1PPm/1PPM ≤15s
hydrogen 0-100%LEL 0-1000PPM 1%LEL/1PPM ≤15s
natural gas 0-100%LEL 0-100%LEL 1%LEL ≤10s
Oxygen-O2 0-30%VOL 0-30%、0-100%VOL 0.1%vol ≤10s
ozone 0-10PPm 0-20、100PPm 0.01PPm/0.1PPM ≤15s
hydrogen sulfide-H2S 0-100PPm 0-50、200、1000PPm 1/0.1PPm ≤10s
Methane-CH4 0-100%LEL 0-100%VOL 1%LEL/1%vol ≤10s
fluorine 0-10PM 0-1、10PPM 1/0.1PPm ≤15s
hydrogen chloride 0-20PPm 0-20/50PPm/100PPM 0.01/0.1PPm ≤15s
Nitrogen-N2 0-30%VOL 0-30%VOL、100%VOL 0.1%LEL/1PPM ≤10s
hydrogen 0-100%LEL 0-1000PPm 1%LEL/0.1PPm ≤15s
chlorine 0-20PPm 0-10、100PPm 0.1PPm ≤15s
ammonia gas 0-100PPm 0-50、500、1000PPm 1/0.1PPm ≤15s
oxynitride 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
methanal 0-20PPm 0-50、100PPm 1/0.1PPm ≤15s
sulfur dioxide 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
nitric oxide 0-250PPm 0-500、1000PPm 1PPm ≤15s
nitrogen oxide 0-20PPm 0-50、1000PPm 0.1/1PPm ≤15s
phosphine 0-20PPm 0-20、100PPm 0.1PPm ≤15s
acrylonitrile 0-100PPM 0-100PPm 0.1/1PPm ≤15s
carbon dioxide 0-5000PPm 0-1%/5%/10%VOL(Infrared ) 1PPM/0.01%VOL ≤15s
hydrogen fluoride 0-10PPm 0-1、10、50、100PPM 0.01/0.1PPm ≤15s
Xylene/methylbenzene 0-20PPm 0-5、10、50、100PPm 0.01/0.1PPm ≤15s
oxirane 0-100PPm 0-100PPm 1/0.1PPm ≤15s
For other gases and measuring ranges, please contact us directly!
Note: Not all gases and range are listed, if you need more information, please contact us.

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Tell us the target gas, measuring range, application and quantity. Confirm gas, sample line, mounting, output signal and maintenance access.

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