DULCOMETER® DMT 2-Wire-Transmitters

DULCOMETER® transmitters type DMT are compact 2-wire-transmitters for the measuring variable pH, Redox, Chlorine, conductive conductivity and temperature. They can easily be combined with programmable logic controllers. The devices offer highest process safety at a comprehensive application spectrum. Various construction types (wall mounting or control panel mounting) make flexible use possible.

Advantages

Universally implementable as many measuring values controllable: pH, Redox, conductivity, Chlorine, temperature
Ideal adjustment to process requirements thanks to various stages of extension
Seamless integration into your process technology: variable installation possibilities for the sensors
Easy and clear user guidance with text indicator on big graphic display in 5 languages
Big, easily readable graphic display for measuring values, correction values and information
High operation safety: probe monitoring (pH) and electrical isolation
Simple flexible installation
Automatic buffer recognition (pH)
Autoranging (conductivity, no measurement range shift)
Compact design
Switch between pH, Redox and temperature
Automatic recognition of platinum thermometre (Pt 100/Pt 1000)
Measuring value simulation mode for test purposes
Bus interface (PROFIBUS®-DP)

Application Areas

Process control in chemical and pharmaceutical industries
Water treatment
Effluent water treatment
Power stations

Features

Measuring variables: pH, Redox, conductivity, Chlorine, temperature
High measuring safety thanks to symmetric input for pH and Redox
Residual current: 23 mA
Display of sensor impedance for pH and Redox
Mounting to pillars, pipes, wall and panel mounting
Communication interface PROFIBUS®-DP

Technical Data

Measurand	Measuring and Control Range	Resolution	Sensor input
pH	-1,00...15,00	0,01 pH	Input resistance > 5 x 10¹¹?
Redox	-1200...+1200 mV	1 mV	Input resistance > 5 x 10¹¹?
Chlorine	0,01 - 5,00 ppm 0,1 - 50,00 ppm	0,01ppm	Clamp (DMT Chlorine sensors with 5-pole control cable)
Temperature	-20...+150 °C	0,1 °C	Clamp Pt 100 / Pt 1000
Conductive Conductivity	1 µS/cm - 200 mS/cm (autoranging)	0,01µS/cm	Clamp (2- or 4 electrodes measuring cells)

Measurand	Value
Accuracy	0,5 % of measuring range
Correction variable	Temperature over Pt 100 or Pt 1000 (Self recognition)
Correction range	pH: 0...100°C Conductivity: 0...100°C (unidimensional temperature compensation) Chlorine: 5...45 °C
Cell constant at conductivity	0,006...12,0/cm
Feed voltage	2-wire-transmitter: 16...40 V DC, nominal 24V DC Profibus-DP: 16...30 V DC, nominal 24 V DC
Protection class	Wall mounted: IP 65 Control panel version: IP 54
Ambient temperature	Wall mounted: -5...55°C (not precipitating) Control panel version: -5...55 °C (not precipitating)
Dimensions in mm (HxWxD)	Wall mounted: 125 x 135 x 75 Control panel version: 125 x 135 x 30
Weight in g	450

ProMinent offers DULCOMETER® measurement and control devices, DULCOTEST® sensor technology as well as ProMinent metering pumps for the creation of complete control circuits. Measuring, Control, Dosing and Recording, all from one hand and optimally inter-adjusted.