Operation
7.4 Operating modes
ULTRAMAT 23
94 Manual, 3/2016, A5E37100388-003
Eight keys are available for operating the ULTRAMAT 23. These keys have the following
meanings:
1* MEAS Measure Measure; abort input operations;
leave input mode (from any menu level);
switch from input mode to measuring mode and
Automatic calibration: activation of calibration with ambient air or nitrogen
Switch internal sample gas pump on/off
4 ESC Escape In input mode: return by one menu level or cancel current input or cancel calibration*
5 ↑ Up arrow Increase selected digit;
select previous menu item
6 ↓ Down arrow Reduce selected digit;
7 → Right arrow Move input cursor by one position to right (cyclic, i.e. the cursor is set to the left edge
when the right edge has been reached)
8 ENTER Enter In measuring mode: switch over to input mode;
in input mode: import entered parameters or
* The input is suppressed if certain conditions are fulfilled.
A corresponding message is then output briefly on the display.
You can use the arrow keys to modify numerical values by increasing or decreasing the digit
at which the cursor is located. The digits are modified continuously, i.e. 0 follows again after
digit 9. You can also decrement to 9, 8... following digit 0. The analyzer outputs the value
FFF... if incorrect numbers are entered.
Use of the <
>, <
>, and <
> keys is described using examples in section
Key operations step by step (Page 98). Use of the <
> key is described in section The
CAL key (Page 101
), use of the <
> key in section The PUMP key (Page 102).
During operation, the analyzer is always in one of following operating modes:
● In the
(see section Warm-up phase (Page 95))
● In
(see section Measuring mode (Page 96))
● In
(see section Input mode (Page 96))