Siemens ULTRAMAT 23 Series - The ESC Key; The CAL Key

7.4.3.3 The ESC key
You can trigger two di󹪜erent functions by pressing the <ESC> key:
• Firstly, you can cancel a commenced procedure, e.g.:
– The input of a number
– A calibration procedure with calibration gas
– Any function if a fault occurs, e.g. if the 󹪞ow of sample gas to the analyzer is missing.
• Secondly, you can use the <ESC> key to move to the next higher level in menu structure
("scroll back"). This procedure is the opposite to selection of a submenu using the <ENTER>
key ("scroll forwards"). If you repeatedly press the <ESC> key, you return back to the main
menu step-by-step. If you press the <ESC> key again in the main menu, the analyzer switches
over from input to measuring mode. All inputs are imported at the same time. However, you
will not be asked to con󹪝rm the inputs.
An example will clarify this:
403.8 vpm CO |
1875 vpm NO |
936.4 vpm SO2 |
4.4 % O2 |U
The analyzer is in measuring mode and is uncoded.
Analyzer status
Calibration
Parameters
Configuration
Switch from measuring mode to input mode using <ENTER>,
select the menu item "Parameters" using the <↑> or <↓>
key, and press <ENTER> to con󹪝rm.
Measuring ranges
Limit values
Time constants
Pump/LCD contrast
In this manner, you enter the 󹪝rst submenu.
Now press <ESC> and then
<ENTER> again. You have returned by one level and then
moved forwards by one level again; you are therefore in the
same menu again.
403.8 vpm CO |
1875 vpm NO |
936.4 vpm SO2 |
4.4 % O2 |U
Press the <ESC> key twice, you are back in measuring mode
again.
7.4.3.4 The CAL key
If the analyzer is in measuring mode, pressing the <CAL> key triggers a single, automatic
calibration (zero-point calibration) with ambient air or nitrogen (AUTOCAL).
The <CAL> key cannot be used during the warm-up phase.
If the 󹪞ow is too low during a zero calibration triggered by pressing the key, the analyzer remains
in this status until either the 󹪞ow is su󹪟cient or the zero calibration is aborted by pressing the
<ESC> key.
In addition to the <CAL> key, an AUTOCAL can also be triggered via the binary input. The binary
input has priority over the key.
Operation
7.4 Operating modes
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012 99