Float switch
For industrial applications, intrinsic safety Ex i
- Combined level and temperature measurement of liquids in machine building
- Control and monitoring tasks for hydraulic power packs, compressors and cooling systems
- 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 of the Float switch
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.