2 Functional description
Brief functional description
The DULCOMETER
®
D1Cb / D1Cc 4-wire measuring transducer/controller is a device
designed to measure/control a measured variable.
In the mA measuring version, the measured variable can be changed without restrictions
in the device menu. In the mV measurement version, the menu of the
DULCOMETER
®
D1Cb / D1Cc only permits choice between pH and ORP.
Depending on the measured variable, sensors for pH or redox potential (ORP) or
amperometric sensors can only be connected to the measured variables in line with
Ä ‘Allocation of the measurement inputs of the DULCOMETER® D1Cb / D1Cc’ Table
on page 17
. The temperature measurement serves as a correction variable and can be
measured using a Pt 100/1000. This means that automatic temperature compensation is
possible with pH-value, conductivity and fluoride measured variables. Temperature com‐
pensation is performed in the sensor (with the exception of the chlorine dioxide sensor
type CDP) with amperometric measured variables (chlorine etc.). Operation of the
DULCOMETER
®
D1Cb / D1Cc takes place via the menu keys. and the data is displayed
by means of an illuminated LCD display. The LCD display ensures that the measured
value, correction variable, control value and error messages can be clearly read.
Allocation of the measurement inputs of the DULCOMETER
®
D1Cb / D1Cc
Connection of the measured vari‐
able to:
Character Measured variable mV input mA input
0 no default setting
of the measured variable
(pH and redox can be selected)
X
A PES (peracetic acid) X
B Bromine X
C Chlorine X
D Chlorine dioxide X
F Fluoride X
*with measured value transducer
Functional description
17
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