Siemens 7MB1420, Инструкция по эксплуатации, Страница: 12 / 74

6 Installation
6.1 Mounting
The FIDAMAT 5E should be installed or mounted in a vibration-free location.
Warning! The device must not be used to measure explosive gases. Operation in poten-
tially explosive atmospheres is not permitted. The permissible ambient tem-
perature (Section 5, Technical Data) must be observed during operation.
The FIDAMAT 5E must only be mounted on sliding rails or angled rails.
See Section 5 for dimensional drawings.
6.2 Gas Supply
Warning! When measuring toxic gases, the exhaust gas must be routed such that there
is no danger to the environment. Gases which may lead to explosive mixtures
must not be measured using the FIDAMAT.
A gas-tight hose or steel piping can be used for the sample gas inlet and outlet depending on the
application, and must be connected leak-free to the gas connection.
The sample gas is drawn in by the diaphram pump (approx. 1 l/min) and should be available at
atmospheric pressure if at all possible. The device can also be operated with a constant pressure
above or below atmospheric of up to 100 mbar.
Note! The useful life of the pump diaphram may be significantly reduced if the
sample gas line is closed and the pump generates a vacuum.
The minimum input pressure down to which a measurement is still possible is approx. 850 mbar
abs. for the FIDAMAT 5E-E and 5E-I and 600 mbar abs. for the FIDAMAT 5E-A.
The exhaust line from the FIDAMAT 5E must always be routed with a downward gradient since water
condenses in it. The internal diameter should not be less than 8 mm (the connection is provided for
a hose 8 x 1 (10 mm external diameter)).
In order to measure emissions it may be necessary to use a sample gas probe, sampling line and
an additional filter (see accessories in Section 10). The FIDAMAT 5E contains two control circuits
to heat these components. The heaters of these accessories must be powered externally (see
Section 6.3).
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