ABB ZDT Installation And Operating Manual page 18

...7 PROGRAMMING
...7.2 Two-point Calibration
Continued from previous page
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Calibration Pass
Failed Constant
Failed Span
Failed Unstable
SECURITY CODE
16
Calibration Pass/Fail
On completion a calibration status message is displayed.
Calibration Pass: Calibration sequence successful
Failed Constant:
Failed Span %:
Failed Unstable:
Note. If sensor calibration is unsuccessful then the
parameters are unaffected. The instrument continues to operate
% of Theory
using parameters stored during the last successful calibration.
Press to return to the top of the
Press to advance to the
Cell offset >±10mV
(upper display shows cell constant)
Cell output <90% or >110% of slope
(upper display shows measured slope)
Cell output unstable (drifting).
Oxygen Calibration Page.
Secure Parameters Page.
and
Cell Zero mV Span