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Ozone
Calibration of the Ozone Sensor
During the calibration, the D1C sets the control variable to „0“. Exception: If a base load or
manual control variable was set, these are maintained during the calibration. The standard signal
outputs mA (measured value or correction value) are frozen. The measured value registered
during the start of the calibration is proposed as the DPD value; this value is adjustable (arrow
keys). Calibration is only possible if the DPD value is
≥
2 % of the measuring range. On suc-
cessful completion of calibration, all error checks which refer to the measured value are restarted.
IMPORTANT
The measuring range of the sensor must agree with the set measuring range (factory
setting: 0-2 ppm). The measuring range must be reset prior to calibration.
Possible
values
Initial value
Increment
Lower value
Upper value
Remark
Measured value 0.01 ppm
0 ppm
100 ppm
Error message
Condition
Remarks
Calibration O
3
not possible!
O
3
slope too low
Calibrate again
Sensor slope too low
(<25% of norm slope)
Calibration O
3
not possible!
O
3
slope too high
Calibrate again
Sensor slope too high
(>300% of norm slope)
DPD value too low
DPD <2 % of the measuring
Calibrate again after adding
DPD > x.xx ppm
range
ozone
D1C2-O3-011-GB
Permanent display 1
Permanent display 2
only with control
(w = setpoint)
ppm
0.20
mea. val.
fd. fwd.:
reg. val.:
0.20 ppm
w=
0.20 ppm
70 %
59 %
Positive values of setting variable:
Ozone
Negative values of setting variable: De-ozone
(Ozone-destruction)
D1C2-O3-012-GB
calibration O
3
calibration O
3
DPD-value:
0.20 ppm
zero p.:
slope:
4.0 mA
6.00 mA/ppm
calibration O
3
zero p.:
slope:
4.0 mA
6.75 mA/ppm
Permanent display 1
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24.02.2009 11:56:05 Uhr
24.02.2009 11:56:05 Uhr
