Transmitter DULCOMETER DMTa

The transmitter DULCOMETER DMTa converts the sensor signals for pH, ORP value, chlorine concentration and conductivity into an interference-insensitive 4-20 mA analogue signal. Flexible, safe and always the optimum resolution of measured value.

The Compact 2-Wire Transmitter – the Link to the PLC and DULCOMETER.

The 2-wire transmitter DMTa converts the following sensor signals into an interference-insensitive 4-20 mA analogue signal: pH, ORP, temperature, chlorine and conductivity.

It is fed via the 2-wire analogue input of a PLC or via a 2-wire analogue input of a ProMinent controller. The 4-20 mA analogue current proportional to the measured value is transmitted via the same two lines.

The DMTa offers an on-site calibration option of the sensor and galvanic separation between the sensor input and measured value output.

Your Benefits

Flexibility in the choice of measured variable with pH, ORP and temperature
Excellent operational safety, thanks to sensor monitoring (pH)
Galvanic isolation between the sensor and supply
Always the optimum measured value resolution by auto-ranging with conductivity measurement
Safety through sensor monitoring of pH for glass breakage and line breakage
Various installation options: wall-mounted, installation on an upright or in a control cabinet

Technical Details

Measured variables: pH, ORP, chlorine, temperature and conductivity
Precision: 0.5 % of the measuring range limit value
Correction variable: Temperature via Pt 100/Pt 1000 (pH, chlorine, conductivity)
Communication interface: PROFIBUS DP (wall-mounted only)
Degree of protection: IP 65 (wall-mounted, pipe-mounted), IP 54 (installation in a control cabinet)
Display: Graphic display

Technical Data


Measuring range	pH – 1.00 … 15.00 -1200 … +1200 mV redox potential 0.01 … 50.0 mg/l Chlorine -20 … +150 °C 1 µS/cm … 200 mS/cm (auto-ranging), depending on the cell constant
Cell constant	0.006 … 12.0/cm for conductivity
Resolution	0.01 pH 1 mV 0.1 % of measuring range for chlorine 0.1 °C Conductivity 1/1000 of display value (min. 0.001 μS/cm)
Accuracy	0.5% from measurement range
Measurement input	mV terminal (pH, ORP); input resistance > 5 x 10¹¹ Ω Chlorine terminal (DMT chlorine sensors) Pt 100/1000 terminal Conductivity terminal (2 or 4-line connection)
Correction variable	Temperature via Pt 100/1000 (pH, chlorine, conductivity)
Correction range temp.	Chlorine: 5 … 45 °C, pH: 0 … 100 °C, conductivity: 0 … 100 °C
Min. current loop	4 mA
Max. current loop	20 mA
Fault current	23 mA
Feed voltage	2-wire transmitter, 16… 35 V DC, nominal 24 V PROFIBUS DP design, 16… 30 V DC, 24 V nominal
Communication interface	PROFIBUS DP (wall-mounted only)
Min. ambient temperature	0 °C
Max. ambient temperature	55 °C
Climate	Relative humidity up to 95% (non-condensing)
Enclosure rating	IP 65 (wall-mounted, pipe-mounted) IP 54 (installation in a control cabinet)
Display	graphical display
Housing material	PPE
Dim. H	135 mm
Dim. B	125 mm
D dimension	75 mm
Weight	0.45 kg

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Transmitter DULCOMETER DMTa

The transmitter DULCOMETER DMTa converts the sensor signals for pH, ORP value, chlorine concentration and conductivity into an interference-insensitive 4-20 mA analogue signal. Flexible, safe and always the optimum resolution of measured value.

The Compact 2-Wire Transmitter – the Link to the PLC and DULCOMETER.

Your Benefits

Technical Details

Technical Data

Transmitter DULCOMETER DMTa Kataloğu

Deha Smart

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