Siemens 7MB2335, Operating Instructions Manual, Page: 68 / 168

Operation
5-18
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
5.7.2.2 Analyzer Status: Diagnostic Values: O
2
Diagnostic Values
This dialog displays the diagnostic values of the optional oxygen
sensor.
S
Sensorsig is the current pessure-compensated voltage of the O
2
sensor in mV
S
O
2
is the current oxygen value (negative values are also possible)
S
Date is the installation date of the O
2
sensor (see Section 5.8.2)
S
Inst.volt is the pressure-compensated voltage of the O
2
sensor
when it was installed.
5.7.2.3 Analyzer Status: Diagnostic Values: Pressure Sensor Diagnosis
This dialog displays the diagnostic values of the pressure sensor (see
Section 5.8.3). The displayed values have the following meaning:
S
ADU pressure is the voltage of the pressure sensor measured at
the output of the A/D converter.
S
Pressure air is the current atmospheric pressure in mbar.
5.7.2.4 Analyzer Status: Diagnostic Values: Other Diagnostic Values
This menu is used to call further diagnostic functions. You can call the
following dialogs:
S
Power/IR source
Power: Data on the mains voltage in % of the nominal value of the
respective mains voltage (e.g.: 100 % corresponds to 230 V or
120 V).
Raw voltage: Raw voltage following the rectification
Source 1, Source 2: Data on the IR source voltage(s), in Volt
provided the IR source is present.
S
Reference/Bridge
Reference: The reference voltage for the electronics of the
analyzer.
Bridge: The supply voltage to the measuring bridge.
S
LCD temperature
The temperature which determines the display contrast. Refer to
Section 5.9.4.2 for adjustment of the LCD contrast.
Sensorsig: 12.02 mV
O
2
: 20.94 %
Date: 27.05.1996
Inst.volt.: 12.10 mV
5722
Pressure ADU: 3.965 V
Pressure air: 999 mbar
5723
Power/IR source
Reference/Bridge
Temperature of LCD
Analog output
5724
Power (VAC) : 101 %
Raw voltage : 30 V
Source 1 : 7.541 V
Source 2 :15.023 V
5724a
Reference : 2.513 V
Bridge : 3.755 V
5724b
LCD temp. : 34.9 ° C
5724c