7 Maintenance
7-3. Gas calibration method
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<Span Adjustment "2-2">
This is used to perform the span adjustment.
NOTE
If the span adjustment failed since the reading was significantly fluctuated from the introduced gas
concentration, it returns to 2-2 after FAIL rather than PASS is displayed . In this case, the span adjustment
has not been completed.
Check if the correct concentration span adjustment gas has been provided and check the gas adjustment
tool for a gas leak. If there are mistakes, perform the span adjustment again.
If the span adjustment cannot be performed even when there is no mistake or after the correction, the gas
sensor life has expired. After turning off the power supply, please contact our overseas sales department
or local representatives.
CAUTION
Before starting the span adjustment, provide the detector with the span adjustment gas and wait until
the indicator is stabilized.
2-2
Press SET key.
Return to 2-2.
Return to 2-2.
Gas Introduction
Introduce a gas, and then press SET key
when the reading is stabilized.
* In case of less than 10% F.S., this
cannot be set.
Span Adjustment
Because the reading will be fixed, select
the introduced gas concentration by
pressing
or
key.
Select the number, and then press SET
key.
Span Adjustment Completed
It automatically returns to 2-2 after PASS
is displayed.
* If the span adjustment failed, it
automatically returns to 2-2 after FAIL
is displayed.
LED
25.0
