Co 2 Calibration - Sanyo MCO-18AIC Service Manual

CO Calibration
2
(1) Press CAL key for approx. 5 seconds.
rd
(2) The top (the 3 ) digit of temperature display is flashing, other digits will go off.
(3) Press CAL key again.
rd
(4) The top (the 3 ) digit of CO
(5) Set the present correct CO
(6) The display will automatically revert to the present temperature.
[Example] If the internal CO
measured value is 4.5,
j
Press
k
The top digit of temperature display is flashing, and other digits will go off.
l
Press CAL key again.
m
The top digit of CO
n
Set the displayed value at 4.5% of the actual measured value with
and
o
The display will automatically revert to the present temperature.
(Note)
s In CO
calibration, if CO
2
the input data will be ignored, and the display will revert to the present temperature.
s CO
calibration should be done after CO
2
after checked that there is no error of measurement.
s This unit has auto zero adjustment function. It is necessary to check that the room installed
the unit is not filled with CO
If the unit is installed in smaller room, be sure to change the room air timely.
(Please request to your customers.)
s CO
calibration should be done in consideration of the difference for CO
2
Note) When key lock mode is ON, calibration mode is disabled.
density display is flashing, other digit will go off.
2
density with
2
density display shows 5.0%(the set value), the actual
2
CAL key for approx. 5 seconds.
density display is flashing, other digits will go off.
2
key, then press ENT
density display is less than 2.0%, an error tone will be emitted and
2
2
gas.
2
key and key. Press
key.
density measuring was done at least three times
9
ENT key.
key
density meter.
2