Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 145)

IM 11M12A01-03E 9-9
9. Calibration
(1) Select the “Calibration timing” display. A panel display as shown in Figure 9.7
appears.
(2) Select each item for the calibration to display the numeric-data entry display. Enter
the desired numeric values for the calibration.
Enter
Hold time: 1 0 min 0 0 s
᭜
Csl time: 1 0 min 0 0 s
᭜ lnterval: 3 0 d 0 0 h
᭜ Start date: 0 1 / 0 1 / 0 0
᭜ Start time: 0 0 : 0 0
Calibration timing
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Figure 9.7 “Calibration Timing” Display
When setting calibration timing requirements, bear the following precautions in mind:
(1) If the calibration interval is shorter than the sum of 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 blowback operations,
calibration will start after completing the maintenance service or blowback opera-
tions (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%
Output hold (stabilization) time 10 minutes, 00 seconds
Calibration time 10 minutes, 00 seconds
Calibration interval 30 days, 00 hours
Start day 01 / 01 / 00
Start time 00:00
Manual
Calibration
Semi-automatic
Calibration
Automatic
Calibration
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