Analysis Mode; Leak Alarm Level - Adixen Sensistor H2000-P PLUS Benutzerhandbuch

26 USER MANUAL HYDROGEN LEAK DETECTOR - H2000 PLUS

Analysis Mode

GB
To Quantify Leaks
The Analysis mode is used for measuring
the size of a leak (or the concentration of a
gas sample).
To be able to do this measurement and obtain
correct values, the instrument must first be
calibrated using the calibration function. See
the following page and page 14.
In the Analysis mode the detector
determines the gas concentration from the
change, as the probe goes from being exposed
to background to being exposed to a certain
gas concentration. The detector does not
continuously monitor the gas concentration
but takes just one reading instead. Another
suitable alternative name for this mode could
be Sampling Mode. It is important to keep
this in mind when using the detector in this
mode.
In Analysis mode the probe should be
moved directly from a background situation
to the test point. The size of the leak in PPM,
or any other selected units*, is shown on the
display. The probe can and should be remo-
ved from the measuring point as the measured
value remains on the display.
*Leak Rate Unit is selected in the General Settings menu, page 20.

Leak Alarm Level

Leak Alarm Level is set in decimal or
scientific format. The scientific format is
explained by the following example:
2.4 x 10
can be written:
2.4E–0.2 or 0.024
–2
= 0.024
®
The period during which the measured value
is displayed can be adjusted in the General
Settings menu. See page 20.
Analysis Mode
0.5
– Volume
Hint: To switch between Detection
Mode and Analysis Mode simply
press the right hand button three times.
The H2000
detector operates in the
PLUS
range 0 - 2000 ppm giving reasonable lin-
earity between 0 and 500 ppm. To obtain
greatest accuracy over this range, calibrate
the detector at a concentration somewhere
between 10 and 100 ppm. Generally
accuracy is always best near the concent-
ration at which it was calibrated.
If entered incorrectly the previous value will
be retained. Always check that the correct
value is saved.
The unit used is the current Leak Rate Unit.
See page 21.
PPM
+ Menu