ProMinent DULCOMETER D2C Operating Instructions Manual page 20

Operating Menu / Description
Variable allocation
Output range
Range
measured value 1 pH
Range regulated
variable
Range measured
value 1 chlorine
Range regulated
variable
General settings
Alarm relay
The alarm relay may be activated / deactivated. When deactivated, no fault message is displayed.
Pause function
With regard to the pause, a delay time "td" may be set. The control will start again only after cessation of the
pause contact and expiry of the preset delay time. When the delay time is elapsing, a clock symbol will be
displayed. The pause function may be reset by pressing the start / stop button.
The mA output measuring value will be frozen when the pause function is activated.
Control input
The control input may be used for fault messages for sample water, high chlorination or base load metering
chlorine. In the event of fault message for sample water, control will be stopped, metering will be set to
base load, and the alarm relay will be activated. If high chlorination is set, the control signal sets metering
to maximum frequency until the preset specified value for high chlorination is reached. This function will
only be available if metering direction is set to chlorine. If base load is set, a control signal will apply a base
load to the chlorine pump. This base load will be maintained for the duration of the control signal.
Operating menu
All setting menus may be accessed by switching from reduced to complete. We recommend to set the
reduced menu again after commissioning.
Access code
If the access code (factory-set to 5000) is altered, no settings (with the exception of cali-bration) may be
carried out without entering the correct code.
20
Possible values
Initial value Increment
Measured value Measured value
Regulated value
Correcting value
4...20 mA 0...20 mA
4...20 mA
pH 2...pH 12 pH 0.01
0 %...+100 % 1 %
0...2 ppm 0.01 ppm
0 %...+100 % 1 %
Lower value Upper value
pH -2 pH 16
0 % +100 %
0.2 ppm 2.20 ppm
0 % +100 %
Remarks
Minimum range pH 0.1
Minimum range 1 %
Minimum range 0.1 ppm
Minimum range 1 %