working principle:
The FSP series static capacitance/level switch uses the measured object as the medium, and uses the induction rod to detect the capacitance between the induction rod and the barrel wall. When the induction rod is covered by the material, the capacitance is gradually increased to achieve the matching of the internal line setting of the switch. When the value is reached, the line generates high-frequency resonance, detects the resonance signal, and turns into a switching action.
Features:
Standard type (SP110 SP111) for general locations
High temperature type (SP120 SP130) for high temperature environments
Acid and alkali resistance (SP150) is suitable for chemical, electroplating, strong acid and alkali environment
Separate type (SP140) is suitable for places with vibration
Steel cable type (SP160) for large tanks
Flat type (SP180) for the bottom of bulk materials or large tanks
The antistatic type (SP190) prevents high voltage static electricity generated by high pressure transport of materials from damaging the internal circuit board.