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39 • Calibration Mode
03 Series Operator’s Manual
A--CAL screen.
12. If the span adjustment (zero adjustment for OX-03) fails, the LCD will
show the following screen, the alarm LED will flash, and the buzzer will
sound a double pulsing tone.
Press and release the POWER MODE button to clear the failure
indication and return to the A--CAL. screen.
See “Troubleshooting” on page 63 to investigate the cause of the failure
and replace the failed sensor if necessary.
13. Turn the regulator on/off knob clockwise to close it.
14. Remove the calibration adapter from the instrument.
15. Remove the regulator from the calibration gas cylinder.
16. Leave the regulator connected to the calibration adapter for
convenience.
17. Store the components of the calibration kit in a safe and convenient
place.
Performing an Easy Span Adjustment (Zero Adjustment for
OX-03) in E--CAL
The E--CAL menu item only appears in Calibration Mode if the One Touch
Cal Time
parameter in the 03 Series User Setup Program is set to anything
other than 0 (factory setting). When One Touch Cal Time is set to 0, A--
CAL will replace E--CAL. The value entered into the One Touch Cal Time
field is the amount of time that the instrument will allow gas to be applied
C--MAX
ppm
75
FAIL
CO
ppm
A--CAL.