Function Description; General - ProMinent DULCOMETER DMT Series Operating Instructions Manual

Function description

6
6.1
The DULCOMETER
processor controlled on site measurement transducer. It displays the
selected measured variable and produces a proportional output signal. It can
also use temperature as a correction variable. The user can specify these
functions using the operating menu.
The user can switch between the measured variables pH value, redox
potential and temperature.
The inputs are collectively electrically insulated against the output.
In the event of a fault the DMT indicates an error message on the LC display
and produces an increased current (23 mA) through the ring circuit.
The DMT is also available for the following measured variables:
•
•
Block circuit diagram
Measured
variable
temperature
Page 18
Function description

General

®
MEASUREMENT TRANSDUCER (DMT) is a micro-
Conductivity
Chlorine
A
µP
D
Keypad
EEPROM
(parameter memory)
FlashROM
(program memory)
D
Power supply,
A
current control
LC display
Signal
output
4 ... 20 mA
at
16 ... 40 V DC
and/or
30 V DC
(PROFIBUS ®
variant)
ProMinent ®