ABB Endura AZ series User Manual page 44

Endura AZ series integral and remote transmitter
Combustion oxygen monitor
Parameter
...Calibrate
Cal. Diagnostics
Cal. Overdue Diag.
Off
Weeks
Months
Cal. Limits Diag.
Offset Limit
Factor Limit
Cell Diagnostics
Slow Response
Diag.
Disabled
Enabled
Response Time
Limit
Table 5.7 Calibrate Menu (Continued)
42
Comment / [Range]
A diagnostic warning can be generated to advise when a
calibration is due.
[1, 2, 3 or 4]
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12]
Sets the limits for the calibration coefficients. If
calculated coefficients are outside limits, calibration fails,
the coefficients are not updated and an Out of
Specification diagnostic message is generated – see
Section 8.2.2, page 82. It is recommended that limits are
left at the factory default settings.
An ideal probe has an offset of 0 mV. The limit is a
deviation from the ideal – for example, if 10 mV is set,
the calibration offset has an acceptable range of –10
to 10 mV.
[0.00 to 20.00 mV]
An ideal probe has a factor of 1.000. The limit is a
deviation from the ideal – for example, if 0.100 is set, the
calibration factor has an acceptable range of 0.900 to
1.100.
[0.000 to 0.100]
A diagnostic function to warn if the probe's response to
the injection of a test gas is slower than expected.
Sets the maximum time allowed for a response to the
test gas. The Test Gas Delay Time (see page 38) is
added to this value for remote automatic calibration
systems.
[0 to 99 s]
5 Programming
Default
Off
20.00 mV
0.100
Disabled
60 s
IM/AZ20E–EN Rev. F