Vertical Liquid Level Switches

The VS series of point liquid level switches demonstrates a high degree of reliability due to the use of non-reactive wetted components and a unique reed switch designed specifically for level sensing applications. The sensor utilizes a moving float with an embedded magnet to activate a reed switch located in the sensor body. As the liquid level raises the float, it moves into close proximity to the reed switch and actuates it to give an open contact or closed contact switch indication. The reliability of this sensor results from a very simple operating principle, a single moving part, media compatible wetted materials, and a unique reed switch design that has a UL recognized component certification. The sensor mounts into the top or bottom wall of a liquid storage tank using either a 1/2” NPT or M16 x 2.0 threaded fitting. The M16 mount is available in either an internal or external configuration.The output is a simple N.O. or N.C. SPST, or SPDT reed switch that utilizes Ruthenium contact points for reliability. Changing from a N.O. output to a N.C. output is done by removing the float and reattaching it in an inverted orientation. This change can be done in the field. Electrical outputs are a single pair or three wirers with PVC insulation and optional lengths of 0.5 m or 2.0 m.