The Kobold NRF-1F capacitive level transmitter is highly reliable and specifically designed for demanding applications where the level of low-dielectric liquids (e.g. fuels and solvents) or high-dielectric water-based solutions is required. The probe measures the change in capacitance that occurs as the liquid level in the tank changes. Microprocessor-based electronics convert changes in capacitance into highly accurate linear output signals. The design is compact and easy to install. Advanced signal conditioning circuitry and integrated (concentric) stationary wells provide the high sensitivity needed to measure low-dielectric liquids. It features a standard 4-20 mA loop powered transmitter housed in 4 different housing options, a 3-4"or 1-1 2"NPT connectors, and a concentric probe for a measurement range of up to 10 feet. The inductive probe is 316 stainless steel with PFA coating. Options include an LCD display or an optional remote-mount DIN transmitter that can be connected to a level sensor via up to 1,000 feet of cable. When access to the probe's electrical enclosure is limited, the remote transmitter option provides a simple setup. Calibration is done via 4 buttons located on the transmitter. Common (low-dielectric) applications include: diesel fuel tanks, vegetable oils, and solvents.
Parameter. Mechanical connections. , 1½" npt
Precision. 1% of range.
Repeatability. 0.1% of range.
Output. 4-20ma
Maximum pressure. 100 psig @ 77°f / 50 psig @ 212°f / 14.5 psig @ 350°f
Medium temperature range.
100...350 °f
Maximum length of guide rod.
10 feet.
Interface Material. 316 stainless steel.
Probe. Full PFA cladding or 316 SS with PTFE gasket.
Peculiarity. Heavy-duty industrial design.
Fuel and solvent are measured using a bare SS probe.
Measure water-based liquids with PTFE-coated probes.
Design based on compact microprocessors.