YOKOGAWA ZR22G User Manual page 123

(9) After the measured value has stabilized, press the [Enter] key to display the "Zero
calibration complete" display shown in Figure 7.36. At this point, the measured value is
corrected to equal the zero gas concentration setting. Close the zero gas flow valve. The
valve lock nut should be tightened completely so that the zero gas does not leak.
Figure 7.23 Zero Calibration complete
(10) Select "End". An oxygen concentration trend graph (with the oxygen concentration being
measured) appears and HOLD TIME flashes. This time is referred to as the output-
stabilization time.
If the HOLD TIME has been set in "Output hold setting", the analog output remains held.
See Section "8.2 Output Hold Setting"
Manual calibration completes when the preset hold (output stabilization) time elapses. This
hold (output stabilization) time is set to 10 minutes at the factory before shipment. If you
press the [Enter] or [Abort] key within the hold (output stabilization) time, manual calibration
completes.
Figure 7.24 Hold Time
<7. Startup>
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
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