Ion Science TVOC 2

The Ion Science TVOC 2 is a fixed, continuous monitor for total volatile organic compounds, using photoionization detection to measure VOCs that present both poisoning and explosion risk. It provides a continuous 4-20 mA output for direct integration into a DCS or plant control system, plus a local LCD display showing the live reading at the detector. The 4-20 mA loop requires external 8-35 V power.

TVOC 2 is user-configurable rather than fixed-range: select 0.01-10 ppm, 0.1-100 ppm, or 1-1,000 ppm (default) and choose your display units, so a single part number covers applications from trace indoor air work to process-area leak monitoring. It can be calibrated on gases other than isobutylene — apply the correct response factor for the target compound to stay within specification (benzene, for example, has a response factor of 0.5).

APPLICATIONS

Process Area VOC Monitoring: Continuous fixed-point detection tied into plant alarms and interlocks.

Indoor Air Quality and Building HVAC: Total VOC monitoring on the low 0.01-10 ppm range.

Solvent Handling and Coating Operations: Paint booths, print rooms, degreasing, and mixing areas.

Laboratory and Cleanroom Monitoring: Continuous background VOC surveillance.

Remediation and Treatment Systems: Unattended off-gas monitoring with signal back to the control system.

Enclosed Spaces and Pump Rooms: Permanent VOC watch where personnel enter intermittently.

WHY THE TVOC 2

• Three user-selectable ranges from 0.01 ppm up to 1,000 ppm in one part number

• Continuous 4-20 mA output for DCS/SCADA integration, plus local LCD readout

• Calibratable on alternative target gases via response factors

• Field-serviceable: lamp, MiniPID 2 sensor, and electrode stack all replaceable on site

• Low installed cost per monitored point compared with sampling-based systems

Note: Ion Science recommends a regular schedule of calibration checks with a logged record of the results — inadequate gas detector performance is not necessarily self-evident.

CONSUMABLES & REPLACEMENT PARTS

MiniPID 2 10.6eV sensors, Falco long-life lamps, orange electrode stacks, lamp springs, sensor caps, seal disks, flow adaptor cap assemblies, carbon filters, calibration adaptors and magnets, hand aspirator, tool kit, and lamp cleaning kits are all stocked. Browse Ion Science Parts and Accessories, or see the full range in Ion Science.