M&C TechGroup PMA 100 Operator's manual User Manual
Page 20
M&C Products Analysentechnik GmbH
9-3.12-ME
- 20 -
12.5.5 Current signal with calibration
During the calibration a mA-signal can be put out as:
off
mA-signal of the last measuring value
on
current signal of the respective calibration gas
The Select key leads to the next menu point.
12.5.6 Calibration time
This menu point sets the backflush respectively calibration
time in case of the autocalibration function. The entry of the
time steps happens in seconds and counts backwards
from the final value (see 13.3). Enter opens the display, and
the data input is operated by the Direction keys
⇑⇓
.
The Enter key confirms the entry, and the Select key leads
to the next menu point.
12.5.7 Measuring time
This menu point sets the backflush respectively measuring
time in case of the measuring point switch function. Enter
opens the display, and the data input is operated by the
Direction keys
⇑⇓
.
The Enter key confirmsthe entry, and the Select key leads
to the next menu point.
12.5.8 Pressure compensation
A pressure compensation is implemented in the oxygen
analyser type PMA100. The compensation is switched on
or off via the Direction keys
⇑⇓
, and confirmed by the
Enter key.
The Select key leads to the next menu point.
12.6
Calibration of the pressure sensor
Three steps are necessary to calibrate the pressure sensor:
1. Air is given to the analyser under normal ambient pres-
sure. Operating the Enter key starts the calibration proce-
dure. The cursor jumps to the first changeable point. If ne-
cessary the value for the current pressure can be corrected
operating the Direction keys
⇑⇓
. After operating the Enter
key the display changes. The first line shows the O
2
-concen–
tration and the pressure on the low level.
2. The pressure has to be increased by minimum 300 mbar
(max. pressure 0,6bar), throttling the flow at the sample
outlet of the analyser. The second line on the display shows
the variable pressure.
3. After compensation of the two O
2
- readings (first and
second line) the calibration is confirmed operating the
Enter key.
The Select key leads to the next menu point.
Zero and span calibration have to be carried out after
calibration of the pressure sensor.
cal. current
off/on
Select
cal. time [s]
fill: 090
cal: 095
Enter
Select
⇑⇑⇑⇑⇑
⇓⇓⇓⇓⇓
meas. time [s]
fill: 000
meas: 02
Enter
⇑⇑⇑⇑⇑
⇓⇓⇓⇓⇓
Select
Enter
press compens.
on/off
Enter
⇑⇑⇑⇑⇑
⇓⇓⇓⇓⇓
Select
↑↑
cal. p.-sensor
. . . %O
2
P: . . .
Enter
⇑⇑⇑⇑⇑
⇓⇓⇓⇓⇓
Enter
20.21 %O
2
P: 1022
20.21 %O
2
P:
400
Enter
Select
Select