level key or level switch

It is used to monitor and control the liquid level in open and closed tanks. The minimum height of the measurable surface is 70 mm. Due to the design without the use of a dense box, there is no problem in the field of sealing. This level switch can be equipped with a maximum of four K1 type contacts. The contacts, which operate magnetically, are housed in a plastic housing resistant to high temperatures. These housings are mounted on a brass rail inside the switch tube and can be adjusted in 4mm increments. By rotating the contacts 180 degrees, the switch function (open or closed) can be changed. These changes are possible without opening the entire device. The minimum distance between two contacts is 80 mm. The float is made of special plastic or stainless steel and carries the magnet of the switch. The switch tube is made of a thick brass tube. Electrical connection is made through 2.5 mm terminals. There is a large air gap between the switch tube and the inner diameter of the float, which prevents the float from sticking. Test certificate: DET NORSKE VERITAS No. A-1729.