Introduction; Measured Variables - ProMinent DULCOMETER Assembly And Operating Instructions Manual

2

Introduction

Data and functions
These operating instructions describe the
technical data and functions of the
DULCOMETER Compact Controller,
®
measured variable: Inductive conductivity
2.1

Measured variables

The controller can process the following
measured variables:
Inductive conductivity
n
[RES]
Resistance
n
[TDS]
TDS value
n
[SAL]
Salinity
n
Switching between measured variables
Use the key to switch between the con‐
troller's measured variables
[TDS] and [SAL] in the continuous display.
Depending on the measured variable set,
the settings of variables are changed or
the variables are hidden completely in the
[INPUT Ø TCOMP] menu and in the
[LIMIT] menu.
[ConI]
[ConI] , [RES] ,
Measured variable: Inductive conductivity
[ConI]
Symbol displayed in the controller's dis‐
[ConI]
play:
Units of measurement: μS/cm, mS/cm ,
S/cm. The measuring range is automati‐
cally detected and switched by the con‐
troller
Physical variable: specific electrical con‐
ductivity (K). Only this measured variable
and the correction variable
are emitted at the mA output, independ‐
ently of the measured variable set on the
controller. The setting of the measured
variable on the controller only affects the
layout of the display and not the output at
the mA output.
Measured variable: Resistance
Symbol displayed in the controller's dis‐
[RES]
play:
Units of measurement: MΩcm, kΩcm,
Ωcm. The measuring range is automati‐
cally detected and switched by the con‐
troller
Physical variable: specific electrical resist‐
ance.
Calculating the specific resistance: ρ (T
= 1/K (T )
ref
Introduction
'Temperature'
[RES]
)
ref
9