• Shridhan Automation Private Limited

Level Switches For Higher Temperatures – MLS

Shridhan Automation offers external chamber Level Switches for higher temperatures or magnetic level switches (MLS). It is a switch for critical area applications or just general purpose control, A choice of carbon steel chambers is available, or for more vigorous applications we supply a series of 316 stainless steel chambers. A variety of tank and process connections is available to make installation simple and economic. The basic operating principle provides for a magnetic switch action resulting from a change in liquid level, which moves a magnetic attraction sleeve into the field of an externally located magnet. This principle eliminates problems associated with flexing diaphragm seals, bellow seals, as well as “fouling” problems encountered by probe type devices. The illustration here demonstrates the operating principle using a float to provide the operating motion. A falling liquid level causes a downward movement of the magnetic attraction sleeve moving it below the magnetic field generated by the externally mounted magnet. The bias spring then causes the magnet to pull away from the sealing tube in turn actuating the switch. The reverse action takes place on rising level, with the attraction sleeve being moved into the magnetic field causing the magnet to pull in towards the sealing tube in turn actuating the switch.