Toxic ppm level Acrylonitrile detector – fixed, flameproof

Acrylonitrile gas detector for ppm level toxic monitoring in hazardous area Zone 1, 2. With analog 4-20mA output, RS485 ModBus RTU serial interface communication. With Display, Potential free relays, buzzer, flasher. It is ideal for installation in solvent warehouse, paint booth, fertilizer unit, chemical plants, refinery, manufacturing units etc.


Acrylonitrile ppm detector – flameproof, fixed, ATEX, Zone 1, 2

online, continuous measurement and alarm of toxic level (ppm range) of acrylonitrile gas / vapour in air or gas stream ducts, flameproof / explosion proof certified Zone 1, 2 – ATEX, with / without display, contact relays, flashing alarm LEDs, RS485 serial interface with Modbus RTU protocol

Model: XGST-007

Acrylonitrile is a colorless, liquid, man-made chemical with a sharp, onion- or garlic-like odor. It can be dissolved in water and evaporates quickly. It is a highly poisonous compound used widely in the manufacturing plastics, adhesives , synthetic rubber, and acrylic fibers.

Acrylonitrile detector for ppm toxic monitoring - fixed, flameproof
Acrylonitrile detector for ppm toxic monitoring – fixed, flameproof

Acute (short-term) exposure of workers to acrylonitrile has been observed to cause mucous membrane irritation, headaches, dizziness, and nausea.

XGST series acrylonitrile sensor transmitter is high sensitive, industrial grade, explosion proof detector toxic range ppm measurement. It is suitable for installed hazardous zone 1, 2 classified area as per OSHA, WHO worksafety requirement. Eg. chemical plant, solvent manufacturing unit, polymer industry, manufacturing plants, warehouse etc

The detector comes with universal mounting, hence can be installed at walls, surfaces or in ducts.

It offer linear, proportional analog output in industry standard current signals, and suitable for integration with BMS, SCADA system. It has unique feature of auto diagnostic watch dog with zero point tracking feature. Due to its 10-bit microprocessor based control unit, it offer high accuracy over long term. The detector is also equipped with sintered filter with flashback arrestor for enhanced safety.

Key Features:

  • Electro-chemical sensor cell with low evaporation rate
  • Selective and sensitive viscous electrolyte
  • 10-bit microprocessor control unit
  • Non-intrusive one-man calibration via hall effect switches
  • ATEX certified explosion proof / flameproof, suitable for Zone 1, 2 gas explosion installation
  • Linear, proportional analog industry standard current output
  • Continuous system self-diagnosis with watch dog
  • Flashback arrestor with sintered filter
  • Auto Zero point tracking to zero point compensation
  • RS485 serial interface with Modbus RTU communication (optional)
  • 1 or 3 relay output module (optional)
  • System and alarm LED indicators (optional)

Technical Specifications:

  • Measuring Parameters: acrylonitrile (ppm level)
  • Sensor Technology: Electro-chemical sensor cell
  • Measuring range: 0 ~ 10 ppm
  • Response time (t90): < 30 sec
  • Control unit: 10 bit microprocessor based
  • Warm up time: < 5 mins
  • Auto zero point tracking for drift compensation
  • Power supply: 24V DC
  • Ingress protection: IP65 / IP67
  • Enclosure: anti-static epoxy coated aluminum alloy, Optional: stainless steel
  • Output: linear, proportional 4-20mA, RS485 Modbus RTU
  • Mounting: wall, duct, pipeline
  • Optional: LCD Display, alarm LEDs, potential free relay contacts
  • Hazardous area: Zone 1, 2


  • Polymer, polyvinyl manufacturing
  • Manufacturing plants
  • Chemical plants
  • Petrochemical units, polymer
  • Warehouse, chemical storage
  • Water treatment


Additional information

Gas Type


Instrument Type

Flameproof / Explosion proof


4-20mA linear, RS485 ModBus RTU


LCD Display, Relay output, Buzzer, Flasher