Type ANV / ANH Magnetic Level Switches - Brooks Instrument - #1

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1 Data Sheet DS-LP-ANV-ANH-MLS-eng November, 2009 Magnetic LeDvaetl aS wSihtceheest Type ANV / ANH Magnetic Level Switches Features and Benefits • Horizontal or vertical tank mounting allows for flexible mounting options • Certified material, NACE, radiography options to meet Customer specifications • Certified explosion-proof or intrinsically safe Description The vertical (Series ANV) or horizontal (Series ANH) level switches are designed to detect level variations in tanks containing liquids. The alarm switches activate electric or pneumatic circuits to switch relays, pumps, electric valves or control luminous signal or alarms. They can be used for normal, corrosive or hazardous liquids. A stainless steel float follows the level of the liquid and transmits its movement to a rod equipped with an emitter. The rod and emitter assembly moves into a scaled, nonmagnetic guide-tube and magnetically activates the switch which is protected by a water-proof case-housing. ANV / ANH Magnetic Level Switches Principle of Operation The ANV models must be mounted vertically, either directly on the top of the tank (series ANV-T) or on the side of the tank through an independent chamber fitted with two side connections (series ANV-C) The ANH models must be mounted horizontally, directly on the side of the tank or through an independent chamber (type ANH-C).