madur electronics maMoS 100, Руководство пользователя

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www.madur.com Manual maMoS 100/200/300/400
value is measured – apart from that throughout the measurement cycle the sensor is vent-
ilated with the inert gas with use of an additional ventilation pump. Independently of the ad-
ditional channel the sensors in the main gas channel are continually supplied with the gas
sample (during the “ MEASUREMENTS ” stage). This option can be found particularly use-
ful in case a H
2
S (hydrogen sulphide) sensor is used – these are very sensitive and wear
out fast. Thanks to such a solution they can be separated from the main channel, supplied
with gas only when the measurement has to be performed and ventilated while the other
sensors perform the measurement process. It extends their lifetime, and as a result de-
creases the analyser's maintenance cost.
3.2.1. Gas dryer with filter
The gas dryer is installed on the outside of the monitor casing on the backplate of the
device. Its main task is to remove moisture from the examined gas sample. The dryer uses
a Peltier element to cool the flue gases to approximately 12°C and to condense the water
out of the gas sample. The condensed water gathers in the transparent container from
where it is pumped by means of the peristaltic pump. Moreover, the dryer is equipped with
a replaceable inlet filter which removes the dirt from the gas sample (Picture 9.).
Picture 9. mamos MD2 gas dryer
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