Analyzer Status: Status: Maintenance Request; Analyzer Status: Status: Autocal Deviation; Analyzer Status: Status: O2 Sensor Status - Siemens ULTRAMAT 23 Operating Instructions Manual

Operation
5.7.1.2

Analyzer Status: Status: Maintenance Request

AUTOCAL drift
beyond tolerance
Press ENTER to clear
Next message with ->
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5.7.1.3

Analyzer Status: Status: AUTOCAL Deviation

IR drift readings
1 AUTOCAL
Deviation: 2.25 %
Max. allowed: 6 %
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5.7.1.4 Analyzer Status: Status: O
O sensor status
2
Reading: 12.02 mV
Maint. req: 6.00 mV
Fault: 5.00 mV
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5-16
This dialog indicates the logged maintenance requests. A maintenance
request is set if the values of certain parameters have reached defined
limits, but the analyzer is still able to measure (e.g. AUTOCAL
deviation or O sensor status; also refer to later in this section). A
2
corresponding message is output in alphanumeric text.
Access is protected by code level 1.
Operations in the maintenance request list (continue, delete) are
carried out analogous to operations in the fault logbook.
Notice
If the analyzer is in measuring mode, you can recognize the
occurrence of a maintenance request in that an "M" appears at the
right edge.
This dialog indicates the deviation in setpoint between two AUTOCAL
procedures. The parameters has the following meanings:
S
The text in the two first lines provides information on the number of
AUTOCAL procedures which have been carried out since the
reference value for AUTOCAL was last set (see Section 5.10.2.2).
S
Deviation is the measured deviation of the actual value from the
reference value, displayed in % of the set measuring range (with
autorange, range 1 is assumed). This deviation must not be above
the set maximum value.
S
Max. allowed is the maximum permissible value for the deviation.
Refer to Section 5.10.2.2 to set the maximum value.
This function is specific to the component.
Sensor Status
2
The cell voltage of the measuring cell drops during operation as a result
of the aging process of the sensor. An exact message is no longer
possible if it has reached the minimum value of 5.0 mV (fault
message). The O measuring cell should therefore be replaced when
2
below 6.0 mV (maintenance request).
S
Reading is the current voltage of O
S
Maint. req and Fault are the two minimum values which output a
maintenance request or a fault message when fallen below.
measuring cell
2
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03