Hardness control device SG 298 S, ¾‘‘ Softener equipment Automatic hardness control device for monitoring of soft water hardness. It is designed for installation in the soft water pipeline and consists of a sensor based on resin expansion and shrinkage. It is equipped with a potential-free contact to control different users (e.g. RO systems) or for acoustic or optical alarm signal applications. Display of ''operation'' and ''raw water'', incl. measuring cell, connection hoses and replacement sensor. The unit works without the use of chemicals or water. Technical data: Flow rate: max. 3600 l/h at pressure difference 0.2 bar electrical connection: 230 V, 50/60 Hz current consumption: 1,2 VA Housing PVC IP 54 change-over switch: potential-free electrical loading: max. 250 V / 5 A pressure drop: max. 0.2 bar Hardness control device SG 298 S, ¾‘‘ Softener equipment Automatic hardness control device for monitoring of soft water hardness. It is designed for installation in the soft water pipeline and consists of a sensor based on resin expansion and shrinkage. It is equipped with a potential-free contact to control different users (e.g. RO systems) or for acoustic or optical alarm signal applications. Display of ''operation'' and ''raw water'', incl. measuring cell, connection hoses and replacement sensor. The unit works without the use of chemicals or water. Technical data: Flow rate: max. 3600 l/h at pressure difference 0.2 bar electrical connection: 230 V, 50/60 Hz current consumption: 1,2 VA Housing PVC IP 54 change-over switch: potential-free electrical loading: max. 250 V / 5 A pressure drop: max. 0.2 bar