Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 136)

<9. Calibration>
9-8
IM 11M12A01-02E
NOTE
When setting calibration timing requirements, bear the following precautions in mind:
(1) If the calibration interval is shorter than the sum of hold (output stabilization) time plus
calibration time, the second calibration start time will conflict with the first calibration. In such
a case, the second calibration will not be conducted. (When both zero and span calibrations
are to be performed, the calibration time is double that required for a single (zero or span)
calibration.)
(2) For the same reason, if the calibration start time conflicts with manual calibration or semi-
automatic calibration, the current calibration will not be conducted.
(3) If the calibration time conflicts with maintenance service or blow back operations, calibration
will start after completing the maintenance service or blow back operations (see Section
8.2.1, earlier in this manual).
(4) If 000 days, 00 hours are set for the calibration intervals, only the first calibration will be
conducted; a second or later calibration will not be conducted.
(5) If a past date is set to the calibration start day, no calibration will be conducted.
9.2.2 Default Values
When the analyzer is delivered, or if data are initialized, the calibration settings are by default, as
shown in Table 9.1.
Table 9.1 Default Settings for Calibration
Item Default Setting
Calibration mode Manual
Calibration procedure Span - zero
Zero gas (oxygen) concentration 1.00%
Span gas (oxygen) concentration 21.00%
Hold (output stabilization) time 10 minutes, 00 seconds
Calibration time 10 minutes, 00 seconds
Calibration interval 30 days, 00 hours
Start date 01 / 01 / 00
Start time 0:00
8th Edition : Jan.13,2012-00