Ametek mocon Dansensor ISM-3, Руководство пользователя

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20 User Manual EN Dansensor
®
ISM-3
P/N 200114-I
09/2021
5. Go to the calibration menu.
- Press and hold the buttons and about 3 seconds until display shows
set
.
- Press twice and the calibration menu
CAL.
is shown.
6. Press and the value for the first calibration gas
CAL1
will appear. The calibration gas
number 1 is reserved for calibration with 20.946% O
2
(atmospheric air) and cannot be
changed. In case of calibration with 20.946% O
2
choose this field. If the calibration gas is
different from 20.946% O
2
, press button until an empty field appears (a field for the
readout of 0ppm) or a field with an old calibration.
Type in the gas concentration - see item 2 to 6 in
"Set-up of alarm limits" on page 13 .
7. Press and

simultaneously to start the actual the calibration.
The display will then flash
CAL.
for about 10 seconds while performing the calibration.
Following the calibration result is displayed. Press

and the related EMF value in mV is
displayed. If calibration with the current gas has not taken place the display shows “- - - - “.
8. Press in order to return to the normal display of O
2
. Repeat level 2 to 8 for each
calibration gas.
9. Set
PA.
to the original value.
Offset adjustment
By changing the measurement set-up (flow, pressure etc.) an offset adjustment might be
necessary. This has to be carried out from the main menu.
Add atmospheric air to the analyser. When a stable O
2
value is displayed, the offset
adjustment is started by pressing +

simultaneously. The display will then flash
OFFS
for
about 5 to 10 seconds while performing the offset adjustment.