ROTRONIC CF8-W-Disp-CO - Manual (Page 8)

Dokument
UMA 147 Rev
1 Page
8 (16)
6d1
The present
MIN value in
% of FS
no
Increase the MIN value by stepping with the MENU(+) button.
Decrease by stepping with the ESC(-) button. The output is set to
the MIN value and can be checked with a multimeter.
6e1 Sure no
The adjustment is saved by pressing Entr(+-). Press ESC to return
without saving.
6c2 SetH no Leads to adjustment of the MAX value
6d2
The present
MAX value in
% of FS
no
Increase MAX value by stepping with the MENU(+) button. Decrease
by stepping with the ESC(-) button. The output is set to the MAX
value and can be checked with a multimeter.
6e2 Sure no
The adjustment is saved by pressing Entr(+-). Press ESC to return
without saving.
7 CALb yes
Background calibration of the CO sensor and the CO
2
-sensor
with fresh air. An easy way to correct the zero point error. The
sensor needs fresh air (380-420 ppm CO
2
). The calibration must be
confirmed by pressing Entr(+-). The CO
2
sensor is calibrated to 400
ppm CO
2
and the CO sensor to 0 ppm CO.
7a Sure yes Confirm that a background calibration shall be done.
8 CAL yes
Zero point calibration of the CO sensor and the CO
2
sensor. The
sensor needs zero gas. See the zero point calibration instruction.
The calibration must be confirmed by pressing Entr(+-).
8a Sure yes Confirm that a zero point calibration shall be done.
Table IV. Maintenance functions available on CF8-W-Disp-CO to set output limits. Time limit
refers to an internal time-out that returns the LCD and maintenance function back to normal.
ENTER is a simultaneous pressing on MENU and ESC.
PLEASE NOTE! If a power failure happens when the sensor has Out(1)...(4) locked
to min/max limits, then the sensor will have this output locked when the power
returns. It is necessary to enter this menu item and release the output manually!