TVOC MANUAL
Ion Science Ltd
Page 10 of 32
5
Installation
5.1 Location
There are many variables involved in defining the optimum location for a gas detector. Obvious though it
may sound, the most important rule is:
·
A detector will not detect gas unless gas actually reaches the detector.
TVOC should be mounted in the location most likely to detect gas.
·
TVOC must be mounted vertically with the sensor underneath the case. This avoids dust and debris
blocking the access to the detector cell.
·
Mount TVOC higher if detecting VOC gases that are lighter than air or lower if detecting VOC gases
that are heavier than air (but never on the floor). This should maximise detection.
·
Mount TVOC in an area that has good air circulation. Restricting natural air current may result in
delayed detection.
·
Never mount TVOC in direct sunlight or over a heat source such as a radiator. This may cause TVOC to
exceed its certified working range.
·
Do not mount TVOC where it’s subjected to rain fall, water, aerosols, mist or heavy condensation.
·
Mount TVOC in areas that are easily accessible for servicing.
·
Percentage variations in the composition of air (78% Nitrogen, 21% Oxygen and 1% Argon) may
affect the detected signal.
Please refer to the technical specifications of the instrument in Section 10 of this manual before
beginning a TVOC installation.
