Operating Menu / Description - ProMinent DULCOMETER D2C Operating Instructions Manual

8

Operating Menu / Description

Permanent displays
pH
7.20
ppm
0.45
value 1 7.00 pH
s. point 7.20 pH
ctrlout 0 %
The permanent displays 1 to 4 serve information on fault messages/causes (see also table on page 22) as
well as on operating values/settings.
Calibration
Calibration of pH probe:
The calibration of the pH probe uses a two-point calibration method (zero point, slope). As buffer pH 7 (zero
point calibration) and pH 4 (slope calibration) are factory-set. If other buffers are to be used, the defaults in
the complete operating menu (menu A, B) may be altered. During calibration control is stopped and
metering is reduced to the set base load. The output 0/4...20 mA (measuring value) will be frozen. After
successful calibration, all fault determinations relating to the measuring value are started again. The current
probe data (zero point/slope) will be displayed.
calibration?
value 1 7.20 pH
value 2 0.45 ppm
stop-key
value 2 0.45 ppm
s. point 0.45 ppm
ctrlout 0 %
calibration pH calibration pH
zero p.: -3,1 mV buffer 1:
slope at 25 °C mea. val:
58.32 mV/pH signal:
calibration pH
buffer 2:
mea. val:
signal:
calibration pH
zero p.:
slope at 25 °C
calibration pH
7.00 pH probe in buffer
7.00 pH buffer: 7.00 pH
-3,1 mV temp.: 23.5 °C
calibration pH
4.00 pH probe in buffer
4.00 pH buffer: 4.00 pH
157 mV temp.: 23.5 °C
-3,1 mV
53.70 mV/pH
A
calibration pH
calib. 1 active
please wait!
-3.1 mV 23.5 °C
calibration pH
calib. 2 active
please wait!
157 mV 23.5 °C
B
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