Sanyo MCO-5M - Page 33

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6. O
2
zero adjustment
(1) O
2
zero adjustment should be performed before O
2
(N
2
) is charged.
(2) O
2
zero adjustment procedure
Press CAL key for approx. 5 seconds or more to blink temperature display and
CO
2
display goes off. Press CAL key again to blink CO
2
display and temperature
display goes out. Press CAL key again to blink O
2
display and other displays go
off. Input “20.0” with key and key and press ENT key.
If the O
2
display is “20.0”, just press ENT key to come the adjustment to end.
7. O
2
span adjustment
(1) Perform in temperature, humidity, CO
2
and O
2
density stabilized.
(2) O
2
span adjustment
Press CAL key for approx. 5 seconds or more to blink temperature display and
CO
2
display goes off. Press CAL key again to blink CO
2
display and temperature
display goes off. Press CAL key again to blink O
2
display and other displays go
off. Input proper value with key and key and press ENT key.
(Note) 1) When O
2
SV and O
2
PV are less than 15% or more than 25%, you can perform
O
2
zero/span adjustment.
2) Perform O
2
span adjustment for the density of less than 15% individually with
the density of more than 25%.
3) Make sure to perform CO
2
adjustment after O
2
adjustment is done.