Capacitance Level Switch (SA) - FINETEK Co., Ltd.

Capacitance Level Switch

Product ID: SA

The capacitance level sensor measuring principle is based on the physical properties of a capacitor formed by the sensor and the vessel wall, the electric capacity is affected by the dielectric value of products. When the sensor is not covered, the dielectric constants =1 (Air is usually =1) when the sensor is covered, the dielectric constant will increase in capacity, the electronic oscillator (1 MEGA Hz radio frequency) will create a resonating signal, which will turn the unit on or off for level control purpose.

Product Introduction

Specifications

No moving parts inside the device, it will be not affected by friction, which are suitable for powder or liquid application.
Various models are suitable for different application.
Operating temperature -20 ~ 200°C, Max. 800°C.
The sensitivity, which includes 10pf, 20pf and 40pf, is adjustable.
With timing delay design, timing adjustable range 0 ~ 6 seconds.
Voltage: 110V/220VAC or 24VDC
Output: NPN transistor, 5A/250VAC and 5A/240VAC SPDT contact.
Standard connecting screw 1" NPT, special specification are acceptable.
Enclosure protection IP65 or explosion-proof.
SA-75U Zener barriers inside provide intrinsic safety (Ex ia IIC) to SA17( )D type level switch.

Main Products

Speed Monitor & Controller, Mini Float Level Switch, Sequential Controller for Dust Collectors System, Magnetic Float Level Indicator, Side Mounting Float Switch, Magnetic Float Level Switch, Microprocessor Temperature Controller, Cable Float Level Switch, By-Pass Level Indicator, Microprocessor Pan