NOHKEN INC.
NOHKEN INC FR Magnetic Float Sensor
Manufacturer: NOHKEN INC
Model: FR
Main application
Any liquids including water, oil, and chemicals
Main feature
FR delivers reliable measurement regardless of pressure, temperature, specific gravity, capacitance, or conductivity.
Engineers can choose from a wide range of wetted part materials and designs. In addition to standard options, FR also supports 316SS, PE, fluorine resin, titanium, and more.
We ensure high reliability by using only high-accuracy reed switches that meet strict in-house standards.
Technicians can adjust set points and switch directions easily on-site
(not applicable for flameproof or high-temperature models).
FR holds Class NK certification (07A008)
Use FR to measure fuel, lubricant oil, and other liquids — excluding decks, bridges, and cargo tanks (except for flameproof types).
Principle of Operation
The sensor uses a magnet and a reed switch to detect liquid presence. The reed switch has its contacts encased in a glass tube with inert gas, and operates by an applied magnetic field.
The figure shows the float and the stem. The float integrates a magnet, and the stem a reed switch at the set point. The reed switch opens or closes as the float goes up or down on the stem.
