TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook BM 25A, Руководство пользователя

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BM 25A/AW
AREA GAS MONITOR
USER MANUAL
16 NPB25AEN
Revision D.0
3.4.2 Using a manual pump
Figure 16: positioning the sensors cover (BM 25A/AW non-equipped with an electric pump)
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Place and screw the cover over the sensors (Figure 16: positioning the sensors cover
(BM 25A/AW 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).
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■
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.
3.5 Measurements
3.5.1 Reading measurements
The gas measurements are displayed at once on the LCD display in four separate fields. In each
field, the measurement is displayed as follows:
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Gas concentration
•
Unit (ppm, % vol. or % LEL)
•
Gas type
•
In "5 gas" configuration, channel #5 is displayed alternately with channel #3 at bottom
left
At the bottom of the screen, time, alarm status and wireless communication status (when
applied) are displayed (see page 23).