Capacitive Level Transmitters
Capacitive level transmitters provide continuous level measurement. The probe and the tank wall form an electric capacitor; with an empty tank the dielectric is air, and as liquid rises along the probe the capacitance changes. The electronics convert that change into a current output proportional to the liquid height.
Capacitive transmitters are used in chemical processing, water treatment, and food and beverage production, and integrate into existing control systems. Capacitive level transmitter products are listed below.
NMC
Capacitive Level Transmitter
11" to 157" Probe | up to 435 PSIG | up to 390 °F | 4-20 mA, 2-wire
Probe Length Range
11" to 157"
Max. Pressure
435 PSIG (30 Bar)
Max. Media Temperature
Up to 390 °F (200 °C)
Input Power
18...36 VDC, 24 VAC, 110 VAC, 230 VAC, 50/60 Hz
Capacitive Monitoring Principle
Measurement of Liquid Levels in Tanks
Four Designs for Various Applications
Sample Application Media: Water, Water-like Liquids, Liquid Foods, Chemicals, Aggressive Liquids, Pharmaceutical Liquids, and Oils