Yokogawa Multi Channel Oxygen Analyzer System ZR22/AV550G - Manual (Page 114)

IM 11M12D01-01E 7-4
[Disconnect power to the heater; this will generate an error ]
If you disconnect the signal wiring from the detector then this will generate an error, but
this allows you to change the detector model settings without detector warm up.
1) Remove all thermocouple (TC) signal wiring from channel cards which connect to
ZO21D detectors.
2) Apply power to the averaging converter.
3) Error messages are displayed for these channels, but you can set their parameters.
4) Touch the Setup key, and the [Execution/Setup] display appears.
5) Select [Commissioning] --> [Basic setup] --> [Detector], then the Detector Selection
display (Fig. 12) appears.
6) Select channels to be connected to "ZO21D*", and change [ZR22G] to read [ZO21D].
7) After changing the channels settings of all channels to be connected to "ZO21D*"
detectors, turn off converter power.
8) Reconnect the removed thermocouple (TC) signal wiring to the channel cards