Nisan Magnetic Level Gauge is used wherever fluid level has to be monitored, indicated, and controlled in a reliable way, especially with corrosive, toxic and inflammable fluids with a viscosity up to max. 5000 mPa s. The Nisan Magnetic level indicators offer a reliable, accident-free and maintenance-free usage, through a simple and break-resistant construction at a maximum process pressure of 200 bar and a temperature range from –50 through 400 °C. The fluid level is indicated directly with a separation of the measurement and indication area. The magnetic transfer of the fluid level from the tank to the indicator is continuous and vibration-resistant, even in the case of fast changing levels. Magnetic Level Gauges are principally designed as an alternative to glass level gauges. MLGs are now widely used in all industries as they avoid direct contact with indicator system; it eliminates need of glass for direct level indication and prevents chemical spillage due to breakage of glass. It is possible to mount the indication rail in any position on the pipe diameter. There is no corrosion of the indication system. The Nisan instruments may be used in open or closed vessels. A definite level measurement without any power supply is guaranteed due to a continuous rotation of the Flappers, even if a power loss in the plant occurs.
Magnetic level indicators can be equipped with an arbitrary number of switch contacts. In contrast to electric float switches, switch contacts may be installed at any position of the stand pipe. Wherever additional float chambers are needed for float switches, magnetically controlled level gauges offer a considerable price benefit. Electrical level measurement transducers which use the displacement principle must be recalibrated each time the fluid density has changed. The price of a magnetically controlled level indicator with integral electrical measurement transducer is considerably lower than level measurement transducers. The reed chain with an R/I measurement transducer can be changed without interrupting the operation. The measurement chamber is hermetically sealed – there is no contact between the fluid chamber and the reed chain. The switches / alarm contacts are secured with pipe clips, and can be adjusted to any desired height. The connection is using 3-core cable or casing terminals. The changeover contact can be used as opener or closer. The switches are also available as explosion-proof version.
NISAN offers Magnetic Level Gauges in top-bottom, top and side mounted construction with two types of indicator systems i.e. Capsule Shuttle and Bicolor
Rollers/Flappers. Magnetic Level Gauge is consisting of three major components: Float Chamber, Float and Indicator System.
Magnetic Level Gauge – Roller/Flapper Indicator system is consisting of bicolor rollers equipped with magnets mounted on rail inside the housing. As the
level starts rising or falling magnetic float also travels with liquid level in nonmagnetic chamber. The magnetic interaction between magnets in float and bicolor
rollers causes each roller to rotate 180. 1) Aluminum Indicator providing upto 180 Deg C & SS Indicators providing upto 500 Deg C Temperature.
Magnetic Level Gauge - Capsule Shuttle Indicator system consists of capsule shuttle housed in the glass tube inside the housing. As the level starts rising
or falling magnetic float also travels with liquid level in nonmagnetic chamber. The magnetic interaction between magnets in float and capsule shuttle causes
capsule to travel along with magnetic float. Capsule Shuttle providing up to 150 Deg C Temperature.