Rotating Paddle Point Level Switch (LSR)
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Operating Principle : Trumen rotating paddle level switches are spring loaded eccentricaly driven rotating vanes or blades, which rotate at a slow roational speed of 3rpm maximum, using a geared motor. When material is absent, rotating vanes are free to move and motor is held to its normal position by a spring. When material level reaches the rotating vanes, it tries to stop the rotation. This causes motor move in reverse as the spring can no longer hold it in its normal position. When motor rotates to a suffient degree, a limit switch gets triggered. This stops the power supply to the motor and another limit switch provides potential free output. Features : Rugged construction and design along with proper sealing to prevent dust penetration. No calibration required. Extensible length model available Different types of blades (vanes) available. Stable and reliable performace Applications : LSR is suitable for applications in free-flowing solid powders and grainules, for example in cement industries, plastics, pharmaceuticals, chemicals and fertilizers, powder, food and breweries, etc.
Admittance Point Level Switch
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We are offering admittance point level switch. Applications:- suitable for all stickynon-sticky bulk solids & liquids. Suitable for side as well as top mounting. Process temperature max 600°c (ceramic insulation). Process pressure max. 15 bar. Minimum and maximum fail safe field selectable. features:- compact size. Universal industrial power supply (12 to 80 vdc & 12 to 265 vac). Low power consumption. Easy calibration. Active shield compensation against material build-up. Static charge safe for fly-ash, acids, plastic & other applications susceptible to static chargeelectricity. Customized process connections like threadedflanged etc. working principle:- bin level indicators is a static level sensor with no moving parts. Its sensing parts are:- earth extension (body) compensation shield sensing rod these parts form three capacitance's shield earth capacitance shield sense capacitance sense earth capacitance a sine wave of high frequency is fed into both sensing rod as well as compensation shield. Voltage at shield is equal to voltage at sense, no effective current flows between sense and shield. This removes shield-sense capacitance from the measurement, shield-earth capacitance is ignored by circuit. This removes the effect of material coating on probe. Material is detected by measuring sense-earth capacitance.
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