NK10 Liquid level contact

Professional measurement equipment for process plants, wastewater treatment plants, etc.

• The level switch 10 N is used as a safety device in thermotechnical and process plants to prevent liquid levels from falling below the lowest permissible limit. As a limiter, the measuring instrument meets the safety requirements in DIN 4754 for plants with organic liquids. 
• NK10 is temperature resistant up to 400 °C
• Parts made of stainless steel in double-walled stainless steel bellows
• NK10 is treated with heat-resistant paint

Advantages of the Fischer NK10 Level Transmitter

Built-in self-test

The level switch is installed so that the float system extends into a liquid-filled tank. The float rod transmits movement, via varying liquid levels, directly to a microswitch. The mounting point on the float rod is located in the part of the measuring device that is sealed against pressure; this part is a stainless steel bellows.

The switch is equipped with a test button, allowing for control of the signal circuit according to DIN 32 728 without draining the tank. When pressing this test button, the float moves against the buoyant force, thus simulating a falling liquid level. 

Robust construction and long service life

According to DIN 32 728, a locking device meeting the requirements of DIN 57 116 / VDE 0116 must be incorporated into the subsequent electrical circuit if the measuring instrument is to be used as a level limiter. Fischer NK10 naturally complies with this requirement and is thus ready to be directly mounted on a production plant where pressure and hot liquids need to be monitored.

The measuring device can withstand up to 16 bar pressure and operate with liquids up to 400 degrees Celsius. The level sensor is approved for operation in hot environments with an ambient temperature of up to 70 degrees Celsius. You are always welcome to contact us for optimal configuration of your measuring equipment, calibration agreements, or service orders.

NK10 is fully calibrated from the factory and therefore does not require calibration until some time has passed.