
Supply in Kazakhstan
KEG TRK supplies equipment diagnostics solutions (Ion Science) across Kazakhstan: Almaty, Astana, Karaganda, Ust-Kamenogorsk, Aktobe and other regions. Official warranty, monitoring system design, installation, commissioning and personnel training.
Key features
Applications and resources
Industry solutions, landing pages and articles on Ion Science TVOC 2 — fixed PID VOC monitor
Typical tasks
- Solvent vapour monitoring in manufacturing and processing
- Refineries and petrochemical plants
- Offshore platforms
- Chemical plants and waste water treatment
- Pulp and paper and pharmaceutical industries
- Painting, coating and solvent recovery systems
- Indoor air quality
Documentation
Official manufacturer PDF documents. Key specifications are also published on this page.
Need a price with delivery in Kazakhstan? We will prepare a quotation for your task.
Overview
The TVOC 2 is a fixed photoionisation detector (PID) from the British company Ion Science for continuous measurement of total volatile organic compounds (VOCs). One instrument measures in three ranges: 0–10, 0–100 and 0–1000 ppm. The output is updated every second.

Diffusive sampling contaminates the instrument less than pumped systems, so the lamp is cleaned and serviced less often. The 4–20 mA analogue output lets the TVOC 2 connect to a DCS to warn of, or control on, high VOC levels in the working area.
Installation and service
- The MiniPID 2 sensor is accessible from outside and changed in seconds.
- No hot work permit is needed for servicing.
- Calibration uses a magnetic switch; zero with a carbon canister, span with 100 ppm isobutylene.
- The instrument connects to an industrial control system over 4–20 mA; screened cables are required to meet the immunity levels.
Hazardous area certification
| Version | Marking | Conditions |
|---|---|---|
| Zone 1 or Zone 2, intrinsically safe installation | II 2G Ex ia IIC T4 Gb, −20 to +50 °C; IECEx BAS 06.0057X; Baseefa05ATEX0277X | with safety barriers |
| Zone 2 | II 3G Ex nA IIC T4 Gc, −40 to +50 °C | three-wire system without barriers |
Confirm parameters and installation conditions against the certificate.
Specifications
| Parameter | Value |
|---|---|
| Principle | PID, MiniPID 2, 10.6 eV lamp |
| Ranges | 0–10 ppm (resolution 0.01), 0–100 ppm (0.1), 0–1000 ppm (1.0) |
| Accuracy | 0–100 ppm ±5%; 100–1000 ppm ±10% |
| Response T90 | under 35 s |
| Sampling | diffusion |
| Output | 4–20 mA, fault levels 2 mA or 3.5 mA |
| Power | 5–28 V DC, 130 mA |
| 4–20 mA loop | 8–35 V DC, externally powered |
| Display | 7-segment 4-digit LCD, 4 LEDs |
| Protection | enclosure IP65, sensor IP54 |
| Temperature | −20 to +50 °C |
| Humidity | 0–95% non-condensing |
| Dimensions | 188 × 126 × 78 mm |
| Weight | 1.3 kg (1.47 kg packed) |
Specifications are for isobutylene calibration at 20 °C, 50% RH and up to 100 ppm.
How TVOC 2 complements other instruments
| Task | Instrument |
|---|---|
| Continuous VOC monitoring at a point | TVOC 2, Falco 2 |
| Continuous benzene monitoring | Titan 2 |
| Walk-round surveys, leak finding, tank entry | Tiger XT |
| Exposure of an individual worker | Cub |
Supply in Kazakhstan
KEG TRK is the official Ion Science representative in Kazakhstan. We supply fixed monitors, help select the range and integrate over 4–20 mA, and arrange calibration and training. Price on request.
Technical specifications
| Technology | PID, MiniPID 2 sensor |
| Lamp | 10.6 eV (krypton) |
| Ranges | 0–10 ppm (0.01); 0–100 ppm (0.1); 0–1000 ppm (1.0), selectable |
| Accuracy | 0–100 ppm ±5%; 100–1000 ppm ±10% |
| Response T90 | under 35 s, output updated every second |
| Sampling | diffusion (pump via adaptor if required) |
| Output | 4–20 mA, selectable 2 mA or 3.5 mA fault levels |
| Power | 5–28 V DC, 130 mA; 4–20 mA loop 8–35 V |
| Calibration | magnetic switch; zero with carbon canister, span 100 ppm isobutylene |
| Display | 7-segment 4-digit LCD, 4 LEDs |
| Certification | II 2G Ex ia IIC T4 Gb (−20 to +50 °C), IECEx BAS 06.0057X, Baseefa05ATEX0277X; Zone 2 — II 3G Ex nA IIC T4 Gc |
| Protection | enclosure IP65, sensor IP54 |
| Operating temperature | −20 to +50 °C |
| Humidity | 0–95% non-condensing |
| Dimensions | 188 × 126 × 78 mm |
| Weight | 1.3 kg |
Applications
Manufacturer
Ion Science
Fixed photoionisation monitor from Ion Science for continuous measurement of volatile organic compounds: three ranges up to 1000 ppm in one instrument, pump-free diffusive sampling, 4–20 mA output, ATEX and IECEx.
Key specifications
- Technology
- PID, MiniPID 2 sensor
- Lamp
- 10.6 eV (krypton)
- Ranges
- 0–10 ppm (0.01); 0–100 ppm (0.1); 0–1000 ppm (1.0), selectable
- Accuracy
- 0–100 ppm ±5%; 100–1000 ppm ±10%
- Response T90
- under 35 s, output updated every second
Official supplier in Kazakhstan
Related products

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Ion Science Tiger XT — handheld PID detector for volatile organic compounds
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Ion Science Cub — personal VOC monitor
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Need advice?
Our specialists will help you choose the optimal Ion Science TVOC 2 — fixed PID VOC monitor configuration for your equipment.
