Atest Gaz ProGas 4, Руководство пользователя

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Despite the power supply voltage for the Gas Safety System is off, dangerous voltage may
persist across terminals of the Control Unit. Such a voltage may come from another system
controlled by the same unit, for instance ventilation, that use one output pin of the control
unit.
The gas detector must be reliably secured during any repair, installation or maintenance
works.
Before painting the facility walls make sure that the device is properly secured against
unintentional painting or paint splashing.
Before use of silicon or silicon-based materials (paints, adhesives, sealant, etc.), make sure
that the device is properly secured against unintentional coating.
The recommended position for the detector operation is the position with its measuring
head looking down (see Figure 3). Other mounting positions may compromise IP class of the
device.
When screwing the cover of the detector enclosure pay attention to the thread of the
enclosure. Incorrect screwing may damage the enclosure thread.
2.1 Conditions of the working environment
Any design of the gas detection system must take account of the following factors:
corrosion aggressiveness of ambient atmospheres – the device must be installed and operated in
environments that are not corrosive for materials applied,
in the case of reactive substances – such as HCl, Cl
2
– note the danger of adsorption of a particular
substance on the sensor surface, particularly in humid environments,
the probability of deposition of dust, grease and other "clogging" substances, especially on the
sinter of the gas inlet to the measuring chamber, which can lead to blocking gas access to the
detector,
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User Manual: POD-064-ENG R05