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Levelstate - Model NANO - Electronic ...

Levelstate - Model NANO -Electronic Level Switch (ELS)

FromLevelstate Systems Ltd

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Levelstate ELS NANO provides a reliable and cost effective means of sensing water/steam level in high pressure/temperature applications. Pressure parts available upto 207 bar at 370? as standard (optional: super-critical). With detection upto 4 channels (optional: upto 8 channels) in Type 300+, the installed cost per detection point is appreciably lower. ELS NANO (single channel) is an effective and economical replacement to the float type level switch.

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Single point steam/water level detection
Available for pressure rating upto 207 bar (3000psi)
Ideal for economic replacement of float type level switches
Visual indication (LED)
Universal input power supply
Adjustable on/off time delay output
Available for hazardous zone (explosion proof ) and super-critical application

The technology uses resistivity discrimination between steam and water to provide indication
Detection level is dependent on water purity and operating conditions i.e. temperature and pressure
Sensing element is a Probe with an insulated tip inserted in a side-arm Water Column/Probe Insert. Voltage is applied to the tip: conduction occurs between the tip and the inside wall of the Column/Probe Insert
Resistance <0.1M Ohm indicates water i.e. Probe is immersed in water. Similarly, resistance >0.1M Ohm indicates steam i.e. Probe is in steam.
An electronic discrimination circuit is used to discriminate the Probe resistance and generate the display logic accordingly