The limitent automatic hardness control device with controller is installed in the soft water pipe after softening units and is used to continuously monitor the soft water for residual hardness. The measuring principle is based on resin shrinkage or expansion, so the device does not require any chemicals or water. A hardness breakthrough is indicated visually and is provided as a potential-free changeover contact.

Benefits

• Proven and reliable hardness control device
• No use of water and chemicals
• No complex maintenance and calibration required
• Easy replacement of the shrink resin sensor
• Hardness breakdown is indicated optically (in addition to output as pot.-free changeover contact)

 

Applications

• Installation after softening plants
• Protection of downstream stages or consumers against hard water breakthrough

 

Protection class:

IP 54

Contact:

floating

Conditions of use:

An overpressure protection must be installed in the feed water line upstream of the hardness control unit. The spare sensor must be flushed with soft water before installation and soaked in soft water / permeate when stored.

Loading max.:

250 V / 5 A / 600 W

LED displays:

Operation / hard water

Operating temperature:

5 – 35 °C

Ambient temperature:

0 – 40 °C

Feed water pressure:

2 – 6 bar