Float switch WIKA Model RLS-4000

Applications

• Combined level and temperature measurement of liquids in machine building

• Control and monitoring tasks for hydraulic power packs, compressors and cooling systems

Special features

• Media compatibility: Oil, diesel, refrigerants and other liquids

• Level: Up to 4 switching outputs, freely definable as normally open, normally closed or change-over contact

• Level and temperature: Up to 3 switching outputs, freely definable as normally open, normally closed or change-over contact and 1 bimetal temperature switch or Pt100 / Pt1000, accuracy: Class B

• Potential-free switching reed contacts

Description

The model RLS-4000 float switch with optional temperature output has been designed for the recording of level and temperature at hazardous measuring points. The stainless steel used is suitable for a multitude of media, such as, for example, oil, diesel and refrigerants.

Measuring principle
A permanent magnet built into the float triggers, with its magnetic field, the potential-free reed contacts built into the guide tube. The triggering of the reed contacts by the permanent magnet is contact-free and thus free from wear.

Depending on customer wishes, the switching functions of normally open, normally closed or change-over can be realised for the defined liquid level.

The optional temperature output enables the medium temperature to be monitored by means of a preconfigured bimetal temperature switch or a Pt100 / Pt1000 resistance signal.