M&C TechGroup PMA 100 Operator's manual - Manual (Page 24)

M&C Products Analysentechnik GmbH 9-3.12-ME
- 24 -
zero conc.
xx.xx%O
2
Cal
zero conc.
(-)xx.xx%O
2
Enter
Select Enter ⇑⇑⇑⇑⇑ ⇓⇓⇓⇓⇓
Select
span-conc.
00.00% O
2
Enter
Select Enter ⇑⇑⇑⇑⇑ ⇓⇓⇓⇓⇓
Select
span calibration
00.00 d: (-)00.00
0 calibration
00.00 d: (-)00.00
Enter
Enter
Manual cal.
press Enter
12.8 Zero- and span calibration
Operating the Cal key leads to the display represented
beside.
A jump into the entry mode of the zero calibration happens
automatically.
12.8.1 Zero gas concentration
Enter opens the display. The Direction keys
⇑⇓
operate the
input of the zero gas concentration (cross sensitivities see
chapter 13.2). The first changeable position is underlined
and can be changed operating the Direction keys
⇑⇓
. A jump
to the next position happens via the Select key. The entry
has to be confirmed by the Enter key.
The value for the zero gas concentration must be
lower than the value for the span gas concentration
Operating once more the Select key leads to the next menu
point.
12.8.2 Span gas concentration
Enter opens the display. The Direction keys
⇑⇓
operate the
input of the span gas concentration. The first changeable
position is underlined and can be changed operating the
Direction keys
⇑⇓
. A jump to the next position happens via
the Select key. The entry has to be confirmed by the
Enter key.
The value for the span gas concentration must be
higher than the value for the zero gas concentration.
Operating once more the Select key leads to the next menu
point.
12.8.3 Calibration
Four calibration modes are available and pre-selected in
menu point 12.5.3:
• manual calibration,
• manual calibration offset,
• autocalibration offset, and
• autocalibration.
• Manual calibration
The Enter key starts the calibration procedure.
After reaching a stable level for the zero gas concentration
(line 2 displays the current value) pressing the Enter key
leads automatically to the span calibration. The deviation in
%O
2
to the last calibration is shown on the display (value „d“ ).
After reaching a stable level for the span gas concentration
(line 2 displays the current value) pressing the Enter key
closes the calibration procedure, and the analyser jumps
automatically into the measurement level. The deviation in
%O
2
to the last calibration is shown on the display (value „d“ )
during the calibration procedure.
A fault during the calibration procedure is represented on
the display as
E ... followed by the message: O
2
-calibration.
The fault is also stored in the calibration log-book.