Instruction manual

Instruction 19-9326
19
Monoxor III
5.0 CALIBRATION & MAINTENANCE
Important: Fresh batteries should be installed, and the unit
allowed to stabilize at room temperature for at least two
hours before proceeding with calibration. To maintain ac-
curacy as listed in the Technical Characteristics Section of
this manual, the standards used must be at least 4 times as
accurate as the stated accuracy of the Monoxor III.
5.1 Entering the Calibration Mode and
Testing the Display Segments
1. With the analyzer turned OFF, place the unit in fresh, ambient air;
then press and hold down the ENTER button.
2. Press the I/O button and release it. Observe that all LCD segments
are turned ON.
3. Release the ENTER button. Observe the unit’s model number and
software version are displayed. The word “CAL” is then displayed
while the unit counts down from either 10 or 60 seconds. Note that
the count-down time is dependent on whether the CO channel is set
up for manual or automatic zero – refer to Page 9.
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At the end of the count-down period, the rst calibration screen is
automatically displayed.
Note: During calibration, the  and  buttons are used to
increase or decrease a displayed calibration value. ENTER is
used to store the new value and move to the next screen. Exit
the Calibration Mode by holding down the ENTER button for
2 seconds.