Offset Adjustment - PBI Dansensor MAP Check 9000 User Manual

MAP Check 9000 - User Manual
3. Start the pump by means of
to the overflow (if another gas than 20.9% is to be used for calibration) to ensure that all
gas sucked in comes from this overflow.
4. Let MAP Check 9000 measure the gas for at least four minutes. When calibrating with
gases of less than 1000 ppm it is recommended to measure for approx. 10 minutes.
Then check that the O
calibration is carried out.
When the output is stable, it must be checked that the O
or is relatively close to, the analysis value specified for the calibration gas. If this is not
the case, the measuring gas hose and filter must be checked for leaks. It must also be
checked that a sufficient amount of gas is being supplied to the overflow from where
MAP Check 9000 extracts the calibration gas.
5. Go to the calibration menu.
- Press the
- Press twice and the calibration menu
6. Press and the value for the first calibration gas,
1 is reserved for calibration with 20.946% (atmospheric air) and cannot be changed.
Select this setting in order to calibrate with 20.946%. If the gas to be used for calibration
is different from 20.946%, press
ppm is read. Enter the gas concentration.
7. Press and
CAL.
, and after approx. 10 seconds calibration will be complete. After calibration the
result can be read. Press
has not been carried out with the gas in question, "- - - -" will be displayed.
8. Press to return to ordinary O
PA.1
9. Set to its original value.
NOTE! Always start the calibration with 20.9 % O
80% O .
2

6.2. Offset adjustment

When changing the measurement setup (flow, pressure, measuring gas hose, etc.), offset
adjustment may be necessary. This adjustment is carried out in the main menu.
Supply atmospheric air to the analyser. When a stable O
adjustment is started by pressing
for approx. 5 to 10 seconds and offset adjustment is complete.
PBI-Dansensor A/S
and connect the MAP Check 9000 measuring gas hose
reading in the display is stable for approx. 1 minute before
2
and keys for approx. three seconds until
simultaneously to start the calibration process. The display will flash
and the relevant EMF value in mV is displayed. If calibration
output. Repeat steps 2 to 7 for each calibration gas.
2
+
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value reading corresponds to,
2
set.
CAL.
is displayed.
cal1.
is displayed. Calibration gas No.
until an empty space appears, a space at which 0
, even if calibration is done with
2
value is displayed, offset
2
simultaneously. The display will then flash
6. Calibration
appears.
OFFS.
PBI-220047-F 01/2008
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