Capacitive Level Detection
Capacitive level switches provide high-sensitivity, non-contact level monitoring for liquids and solids. The sensor and the tank wall form a capacitor; with no media at the sensor the dielectric is air, and when media reaches the sensor the change in capacitance triggers an output relay. With no moving parts to wear, capacitive switches have long service lives.
They are used in chemical processing, water treatment, and food and beverage production, and integrate into existing control systems. Capacitive level switch products are listed below.
NCW
Capacitive Level Switch
11" to 157" Probe Length | up to 435 PSIG | up to 392 °F | Relay Contact | Four Different Designs
Probe Length Range
11" to 157"
Max. Pressure
435 PSIG (30 Bar)
Max. Media Temperature
Up to 392 °F (200 °C)
Input Power
18...36 VDC, 24 VAC, 110 VAC, 230 VAC, 50/60 Hz
Capacitive Monitoring Principle
Monitors Liquid Levels in Tanks
Four Designs for Various Applications