Emerson Rosemount CCO 5500, Reference Manual

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4.9.4 Calibration data
You can examine the calibration factors determined during the calibration routine (SCcal)
and the value currently being used (SCwkg) from this display. If the two values are
different, this indicates a change in instrument temperature between the time of
calibration and the current temperature. Press one of the arrow keys to examine the
temperature information.
Temperature has a small effect on the filter/gas cell characteristics compensated for by the
instrument. Temperature measurement is made within the receiver.
4.9.5 Fault condition
To display the current fault condition, press ENTER while this is displayed.
The instrument automatically selects this display mode if a fault condition occurs. The
instrument recognized the following fault conditions:
1.
ALL CLEAR: No fault condition.
2. Det. Saturated: The detector level gain within either the receiver or the control unit
is too high for the current duct conditions.
3. Low Det. Level: Detector levels are too low (< 3,000).
4. Mod. Freq.O.R.: Chopper motor frequency is out of range (< 30 Hz or > 45 Hz).
5. Reference Fail.: No reference signal from the source unit.
6. Cal. Fact. O.R.: After the calibration routine, the calculated Set Cal factor is out of
range. Refer to
Chapter 6 .
Press the arrow key to observe the previous fault condition.
Note
If a fault condition exists, the instrument does not update the minutes, hours, and days averages.
Refer to
Section 6.1.1 .
Operation
60 Rosemount CCO 5500