TVOC2 Fixed VOC Monitor

TVOC2 Fixed VOC Monitor

Description

TVOC 2 is a fixed photoionisation detector (PID) for the continuous measurement of total volatile organic compounds (VOCs). TVOC 2 can accurately measure three detection ranges.

Features
Photoionisation (PID) detection
Safety
Ease of use
Low cost operation

Specifications

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
Dependent on cable glands fitted sensor to IP53

Power

4-20mA requires a 8-35VDC power supply
For IS requirements 3-30 VDC power supply

Ranges

0 to 10 ppm, 0 to 100 ppm, 0 to 1000 ppm (user selectable)

Sampling

Diffusion (can be pumped if required using an adaptor)

Display

7 segment, 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 accessory

Temperature

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

Weight & 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

Selectable 2 mA & 3.5 mA options

 

NB: All specifications are based upon isobutylene calibration at 20°C (68°F) 50% RH, up to 100 ppm at atmospheric pressure.
* The Fence Electrode technology referred to in this document is produced by Ion Science Ltd, and protected by patents. U.S. Patent No. 7,046,012. EP 1474681, other patents pending.
** TVOC has a variable duty cycle set to 1 minute as standard. The user can adjust this between 5 sec- onds and 5 minutes. TVOC is a registered trademark of Ion Science Ltd.