Calibration - Alcatel Vacuum Technology adixen H2000 PLUS 5.0 Serie Benutzerhandbuch

Calibration

The instrument can be calibrated using the
integral calibration function, see page 14.
After calibration the instrument will show
the correct measured values on the display
in Analysis mode.
(The sensitivity settings made in Detection
Mode are described on page 17.)
Calibration is a natural part of leak measu-
rement and an important factor in Quality
control. It is easily achived by using the
integral calibration function described on
page 14.
It is impossible to specify an exact require-
ment for the interval between calibrations
because the applications for which the
instrument is used can vary considerably.
If the detector is used, but is not subjected
to gas for a lengthy period or exposed to
very small gas concentrations (less than
10 PPM) with long intervals between ex-
Password
To prevent settings for measurements being
changed inadvertently or by unauthorised
persons, all critical settings can be protected
with a password.
When the display shows Enter Password
coupled with a flashing line, type in the
desired password using the + and – , and
press > twice after the last character.
If the display shows Wrong Password,
press Enter and type in the correct pass-
posure, there will be some oxidation of the
sensor which reduces the sensitivity.
The oxidation is reduced when the instru-
ment is subjected to large gas concentra-
tions. If the instrument is used only for
small gas exposures, it should be calibrated
frequently, perhaps once an hour, to be able
to guarantee that the measured values are
correct.
If the instrument is subjected to a very
large gas concentration over a long period,
a certain amount of insensitivity can occur
directly afterwards. This saturation effect
can make it difficult to detect very small
leaks. Therefore, make a habit of removing
the probe from the measuring point as
soon as the measured value is displayed.
This gives the detector an opportunity to
recover. The measured value remains on
the display for at least the period selected
in the Min Presentation Time menu,
see page 19.
<
word. Menus will be unlocked until you
return to Detection Mode/Analysis
Mode/Combined Mode.
The submenu Language requires no
password.
Adixen Scandinavia - User's manual H2000 PLUS
Analysis Mode Settings
Leak Alarm Level
Enter Password
– + >
GB