The Esc Key; The Cal Key - Siemens ULTRAMAT 23 Series Equipment Manual

7.4.3.3

The ESC key

You can trigger two different 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 flow 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 confirm the inputs.
An example will clarify this:
403.8 vpm CO
1875
936.4 vpm SO2
4.4 %
Analyzer status
Calibration
Parameters
Configuration
Measuring ranges
Limit values
Time constants
Pump/LCD contrast
403.8 vpm CO
1875
936.4 vpm SO2
4.4 %
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 flow is too low during a zero calibration triggered by pressing the key, the analyzer remains
in this status until either the flow is sufficient 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.
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012
|
vpm NO
|
|
O2 | U
|
vpm NO
|
|
O2
| U
The analyzer is in measuring mode and is uncoded.
Switch from measuring mode to input mode using <ENTER>,
select the menu item "Parameters" using the <↑> or <↓>
key, and press <ENTER> to confirm.
In this manner, you enter the first 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.
Press the <ESC> key twice, you are back in measuring mode
again.
Operation
7.4 Operating modes
99