Capacitive Level Transmitters

Capacitive Transmitters from KOBOLD are designed for high accuracy and non-contact level measurement. The instrument's probe and the wall of the tank forms an electric capacitor. The dielectric of this capacitor when the tanks is empty, is the air. When the liquid reaches the probe, the dielectric constant formed by the unit and tank changes. An electronic circuit converts this capacity change in a variable current and is proportional to the height of the liquid.

KOBOLD's capacitive transmitters are highly versatile and can be used in a wide range of industries, including chemical processing, water treatment, and food and beverage production. They are designed for easy integration into existing control systems, offering real-time monitoring and control capabilities. Below, you will find a list of our capacitive level measurement products, each engineered to deliver exceptional performance and reliability.

NMC - Capacitive Level Transmitter for Liquids
NMC - Capacitive Level Transmitter for Liquids
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
Output
4-20 mA, 2-wire
NRF - Capacitance Level Transmitter
NRF - Capacitance Level Transmitter
Fittings
3/4" NPT, 1-1/2" or 2" Tri-Clamp®
Accuracy
± 1% of Span
Repeatability
± 0.1% of Span
Output
4-20 mA
Max. Pressure
500 PSIG
Media Temperature Range
-100...350 °F
Rigid Probe
Up To 20 Feet
Flexible Probe
Up To 200 Feet
Fittings
316 Stainless Steel or PTFE
Probe
Fully PFA Clad or 316 SS
NRF-1F - Capacitance Level Probe for Low-Dielectric Liquids
NRF-1F - Capacitance Level Probe for Low-Dielectric Liquids
Fittings
¾", 1½" NPT
Accuracy
± 1% of Span
Repeatability
± 0.1% of Span
Output
4-20 mA
Max. Pressure
100 PSIG @ 77°F / 50 PSIG @ 212°F / 14.5 PSIG @ 350°F
Media Temperature Range
-100...350 °F
Maximum Length
10 Feet
Fittings
316 Stainless Steel
Probe
Fully PFA Clad or 316 SS w/PTFE Spacers
NRF-1W - Flexible Cable Water Well Level Transmitter
NRF-1W - Flexible Cable Water Well Level Transmitter
Accuracy
± 1% of Span
Repeatability
± 0.1% of Span
Max. Length
1000 Feet (300m)
Standard Fitting
3/4” NPT (316 SS)
Cable
PFA-clad 3/32" Diameter SS Cable
Weight
316 SS
Process Temp. Range
-100...350 °F
Ambient Temp. Range
-40...160 °F
Max. Pressure (SS Fitting)
100 PSIG @ 70 °F, 50 PSIG @ 300 °F, 14 PSIG @ 350 °F
NRF-2, NRF-3 - Capacitance Level and Temperature Transducer
NRF-2, NRF-3 - Capacitance Level and Temperature Transducer
Fittings
3/4" NPT, 1-1/2"...3" Tri-Clamp®
Level Accuracy
± 1% of Span
Level Repeatability
± 0.1% of Span
Output
4-20mA Outputs for Level and Temperature or 4-20mA for Level and Pt-100 for Temperature
Max. Pressure
500 PSIG
Media Temperature Range
-58...392 °F
Maximum Length
12 Feet
Wetted Materials
316 Stainless Steel, PTFE, PFA
Probe
Fully PFA-clad or 316 SS