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26
BM 25/25W
Instruction Manual
Before each use of the electrical pump, check the seal by obstructing the
end of the sampling line until the Flow Fault alarm is triggered. Do not
forget to remove the sensors cover to return to diffusion mode.
Using a manual pump
Figure 16: positioning the sensors cover (BM 25/25W non-equipped with an electric
pump)
■
Place and screw the cover over the sensors (Figure 16: positioning the sensors
cover (BM 25/25W non-equipped with an electric pump)ref. 1); this cover has no
hump as previously mentioned (ref. 4).
■
Connect the sample line (ref. 2) to the gas inlet (ref. 3).
■
Wait for the measurements to stabilize before recording them; if measurements are
recorded too soon, they may be over-estimated (combustible gases), or under-
estimated (oxygen).
Once the sampling is complete, remember to remove the sensors cover to
return to diffusion mode.
Содержание BM25
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