water hardness measuring instrument / digital / electronic / potentiometric
Softcontrol Smart



  • Measured value:

    water hardness

  • Technology:

    digital, electronic, potentiometric

  • Applications:

    industrial, process, for liquids, for long-term measurements

  • Other characteristics:

    compact, automatic, high-precision, continuous, in-line, for integration


Compact device for online water hardness monitoring

Softcontrol Smart, the smallest member of the Softcontrol family, monitors a preset threshold value of 10% of soft water hardness in reference to raw water hardness. Installation, commissioning and operating of the water hardness meter Softcontrol Smart are completely uncomplicated. There is no need of parameterization by the user. The cyclical calibration and self-monitoring of the sensor performance leads to an interference-free process flow. The device works environmental friendly and cost-efficient.
An addition of reagents or indicators is not necessary.


Dimension of case: 120 x 80 x 55 mm (B x H x D)

Mounting area: 220 x 300 x 65 mm (B x H x D) (wall mounted)

Weight appr.: 500 g

Surrounding temperature: 5°C to 50°C

Relative humidity: 20% to 80%

Power supply: wall power supply 100 … 240 V / 50 … 60 Hz

Power consumption: 15 V DC, approx. 4 Watt

Raw and soft water connections: branch pipe with connection for PA-tube o.d. 4 mm,
i.d. 2 mm, up streamed dirt filter ≤ 0,1 mm recommended

Raw and soft water pressure: minimum 1 bar up to maximum 10 bars

Drain: minimum ø 8 mm, pressure free

Quality of raw and soft water: natural water, free of grease, oil and brine
germ content < 5000 CFU/ml

Hardness range raw water: 0.18 mmol/l up to 10.8 mmol/l, natural water

Evaluation of water hardness in soft water: from 0.018 mmol/l

Operation time of sensor: approx. 6 … 9 month (without warranty)