TVOC 2 Continuous VOC Gas Detector

This robust fixed continuous VOC gas detector has a selectable detection range of 0 – 10 ppm, 0 – 100 ppm or 0 – 1000 ppm and is ideal for use in manufacturing and process industries where VOCs are typically present. With a 4-20 mA analogue output, the fixed continuous VOC gas detector can be simply integrated into a Distributed Control System (DCS) to provide warnings and enable control of high VOC levels in your working environment.

Features

The TVOC 2 fixed continuous VOC gas detector has ATEX approvals that enable a 3 wire TVOC system to be used in Zone 2 hazardous areas without safety barriers, whilst its ATEX and IECEx approvals allow TVOC 2 to be used in Zone 1 hazardous areas with safety barriers.

Simple to install service and calibrate, TVOC 2 fixed continuous VOC gas detector requires no hot work permit and the PID sensor is accessible and changeable in a matter of seconds.

Technical Specification

Approvals:

- II 2G Ex ia IIC T4 Gb (-20 °C ≤ Ta ≤ +50 °C)

- II 3G Ex nA IIC T4 (-40 °C ≤ Ta ≤ +50 °C)

- Baseefa05ATEX0277X

- IECEx BAS 06.0057X

Ingress Protection:

- Designed to IP65
- Sensor ingress protection IP54

Power:5 – 28 VDC Max 130 mA

Output:

- 4-20 mA requires a 8-35 VDC power supply
- For IS requirements 8-30 VDC power supply

Range:0 to 10 pp, 0 to 100, 0 to 1000 ppm (user selectable)

Sampling: Diffusion (can be pumped if required using an adaptor)

Display: 7 segment, 4 digit LCD, 4 colour LEDs

Response: Sensor – T₉₀ < 5 secs

Accuracy:

0 to 100 ppm: ± 5 % calibration point
100 to 1000 ppm: ± 10 % at calibration points

Calibration:

Accessed via magnetic switch
100 ppm isobutylene via calibration kit accessory

Temperature:

- Operating: – 20 to 50 °C (- 4 to 122 °F)
- Humidity: 0-95% RH (non-condensing)

Weight and Dimensions:

- Instrument: 1.4 kg (3.1 lb) Packed: 1.6 kg (3.5 lb)
- Dimensions: 188 x 126 x 78 mm (7.4 x 4.9 x 3″)

4 – 20 mA Alarm Levels: Selectable 2 mA & 3.5 mA options