Siemens 7MB2335, Operating Instructions Manual, Page: 58 / 168

Operation
5-8
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
Following the calibration, the analyzer switches to purging with sample
gas.
At the end of the purging phase, the analyzer switches to measuring
mode; however, full measuring accuracy is only reached after approx.
30 min if a further AUTOCAL has been automatically carried out by the
analyzer. The warm-up mode is then finished.
5.4 Measuring Mode
The measured components are output on the display together with their
values and the units in mg/m
3
, vpm or volume percent. With a change
in the analyzer status, the corresponding letter appears in the last two
columns (”P” in the example; see also Section 5.2). The analyzer
remains in measuring mode until an AUTOCAL (automatic,
remote-controlled or manual) is carried out or until you manually switch
the analyzer to input mode (see Section 5.2).
If ’*****’ occurs in measuring mode without a fault being present, this
means:
S
Concentration in sample gas more than 5 % higher than the largest
measuring range
S
Signal saturation resulting from excessively high sample gas
concentrations
5.5 Input Mode
In input mode, you can view instrument parameters or calibrate and
parameterize the analyzer.
!
Caution
The analyzer must only be calibrated and/or parameterized by trained
specialists and with reference to this Instruction Manual.
Once you have selected input mode, the first menu to appear is the
main menu which displays four menu items. You can use these to
select the individual input functions of the ULTRAMAT 23:
Analyzer status You can call submenus which provide information on the analyzer
status, e.g. entries in the logbook, diagnostics data and factory data
(see Fig. 5-4 for menu structure).
AUTOCAL
Time left 0:44 min
Purging w. meas. gas
53d
403.8 vpm CO |
1875 vpm NO |
936.4 vpm SO
2
|
4.2 % O
2
|P
54
***** vpm CO |
1875 vpm NO |
936.4 vpm SO
2
|
4.2 % O
2
|P
54
A nalyzer status
Calibration
Parameters
Configuration
55