Yokogawa Multi Channel Oxygen Analyzer System ZR22/AV550G - Manual (Page 167)

IM 11M12D01-01E 10-5
10. Other Functions
10.1.13 Ch. card Rev., Ctrl. card Rev.
This shows the revision number of the channel card software and Control card software.
10.1.14 Maximum Oxygen Concentration
The maximum oxygen concentration and the time of its occurrence during the period
specified in the Averaging display are displayed. After the preset monitoring interval has
elapsed, the maximum oxygen concentration that has been displayed so far will be
cleared and a new maximum oxygen concentration will be displayed. If the setup period
of time is changed, the current maximum oxygen concentration will be displayed (for
more details, see Section 8.6.2 earlier in this manual).
10.1.15 Minimum Oxygen Concentration
The minimum oxygen concentration and the time of its occurrence during the period
specified in the Averaging display are displayed. If the setup period elapses, the mini-
mum oxygen concentration that has been displayed so far will be cleared and a new
minimum oxygen concentration will be displayed. If the setup period of time is changed,
the current minimum oxygen concentration will be displayed (for more details, see
Section 8.6.2 earlier in this manual).
10.1.16 Average Oxygen Concentration
The average oxygen concentration during the periods over which average values are
calculated is displayed. If the setup period elapses, the average oxygen concentration
that has been displayed so far will be cleared and a new average oxygen concentration
will be displayed. If the setup period of time is changed, the current average oxygen
concentration will be displayed (for more details, see Section 8.6.2 earlier in this
manual).
10.1.17 History of Calibration Time
The calibration-conducted dates and times, and span-gas and zero-gas ratios for the past
ten calibrations are stored in memory.
10.1.18 Internal Temperature Alarm Logging
You can view a history of past instrument internal temperature alarms. Refer to Section
12.2, "Displays and Remedies When Alarms Are Generated."
The instrument internal temperature alarms log is deleted if you clear the alarm log
storage area. Refer to Section 10.7, "Operational Data Initialization."