Kobold NDT Static Pressure Level Switch

The KOBOLD NDT Series static pressure level switch is especially suitable for level monitoring of liquids in open or vented tanks. The NDT liquid level switch uses pressure to measure the height of the liquid above the bottom of its user-supplied sensing tube. Operation of the NDT Series static pressure level switch is simple. Install a pipe on the NDT Series level switch so that the bottom of the pipe reaches to four inches below the desired switch point. When the liquid level reaches the pipe, it will seal off access to the pipe end. As the level continues to rise, the static pressure of the liquid will exert a pressure on the air pocket trapped in the pipe (corresponding to the height of the medium above the pipe end). The NDT Series static pressure level switch is connected to the air pocket and factory adjusted to trip at 4" of water column pressure. The switching can therefore take place without the KOBOLD NDT Series liquid level switch’s moving mechanisms ever contacting the medium. Since the pipe is user supplied, mounting flexibility and chemical compatibility with the process is easily afforded.