TVOC, the fixed VOC gas detector from Ion Science

TVOC [fixed VOC gas detector]

TVOC is a fixed VOC gas detector, manufactured by Ion Science. The TVOC provides continuous detection and measurements within minutes.

The detector features the patented PID sensors and Fence Electrode Technology by Ion Science. The Fence Electrode Technology provides increased resistance to humidity and contamination.

The instrument has ATEX and IECEx approvals, which makes the device suitable for Zone 1 and Zone 2 hazardous areas. The robust TVOC is ideal to use in manufacturing and other industries.


The detector can be integrated with the DCS control system to provide warnings and to gain control over high VOC levels. The fixed VOC gas detector is easy to install, service and calibrate.

The fixed VOC gas detector has the following features

  • The PID technology is independently verified as the best performing PID in the market
  • Range: 0 to 10, 0 to 100 or 0 to 1000 ppm. Options available
  • Humidity resistant
  • Contamination prevention design for extended field operation
  • The variable duty cycle feature extends the products life span
  • Reliable diffusive monitoring – no pump required
  • Accurate results in all environmental conditions
  • The rugged design enables the device to withstand harsh environments
  • Large LCD display for clear readings
  • ATEX and IECEx approved
  • No hot work permit required
  • Easy to use – minimal training required
  • Easy access to the PID sensor for fast and simple servicing
  • Simple calibration procedure
  • Easily integrated into a DCS control system
  • Inexpensive consumables and parts
  • Two-year warranty when product is registered online

Specifications for the fixed VOC gas detector

Feature Value/Information
Sensor (PID) 10.6 eV lamp with Ion Science patented Fence Electrode Technology
Hazardous area safety approvals ATEX: II 3 G Ex nA IIC T4 (-40°C ≤Ta ≤ 50°C).
ATEX / IECEx: II 2 G EEx ia IIC T4 (-20°C ≤Ta ≤ 50°C).
Ingress protection rating Designed to IP65 standard.
Dependent on cable glands fitted sensor to IP53
Power 4-20mA requires a 8-35VDC power supply.
For IS requirements use 3-30 VDC power supply
Ranges 0 to 10 ppm, 0 to 100 ppm, 0 to 1000 ppm options available
Sampling Diffusion (can be pumped if required using an adaptor)
Display 7 segments, 5 digit LCD, 4 colour LED’s
Response Sensor – T90 <5 sec
Accuracy 0 to 100 ppm: ± 10% or ± 1 ppm (whichever is greater).
0 to 1000 ppm: ± 10% or ± 1 ppm (whichever is greater)
Linearity 0 to 1000 ppm: >75%
Calibration Magnetically accessed 100 ppm Isobutylene via calibration kit
Temperature Operating: -20 to 50°C, -4 to 122°F. Humidity: 0-95% RH
(not condensing)
Weight and dimensions Instrument: 1.4 kg (3.1 lb) packed: 1.6 kg (3.5 ib).
Dimensions: 188 x 126 x 78 mm (7.4 x 4.9 x 3″)
4-20 mA alarm levels 2 mA & 3.5 mA options available

For more information about the fixed VOC gas detector, contact us now

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