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Level Measurement

Level sensors detect the level of substances that flow, including liquids, slurries, granular materials and powders. Level detection sensors include vibrating, rotating paddle, mechanical diaphragm, microwave (or radar), capacitance, optical, pulsed-ultrasonic and ultrasonic. In deriving the value of the height of some material from a lower point to a higher point, some level measurement devices do so by “drawing” horizontal lines plumb and parallel to each other at the two points. Further refinements in measurement follow from this point.

ARTICLES

Particulate CEM for Stacks

This Particulate Continuous Emissions Monitor (CEM) for large stacks, baghouses, cartridge type dust collectors, cyclones and some ESPs (electrostatic precipitators) offers the performance of a light scatter PM CEM with lower maintenance and offers far greater accuracy and low level monitoring than an opacity monitor.
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Rotary Paddle Switch

The ROTALOG Rotary Paddle Switch by Mucon, presented by Kemutec, is designed to signal the presence or absence of bulk materials in silos and hoppers as well as for blockage detection in conveyor chutes.
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Interface for Continuous Level Sensors

The WirelessEZ communication interface (radio modem) from Monitor Technologies is a practical option when hard-wiring is not feasible.
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Compact Vibrating Rod for Use in Small Bins

BinMaster introduces the new CVR-625, a compact vibrating rod that is ideal for small bins, hoppers and feeders.
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Guided Wave Radar Integrity Testing

Emerson Process Management introduces the world’s first online Guided Wave Radar (GWR) transmitter and probe testing function.
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Linear Position Transmitters

Configured with a float, Macro Sensors HSIR Series LVDT Linear Position Transmitters are serving as level sensors to measure liquid level changes from a few inches to several feet in gauging tank level volumes.
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Bin Level Control

Conveyor Components Company’s Model CR Roto-Level Control provides storage bins with protection from material overflow, empty bins, abnormal levels and plugged chutes.
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Adjustable Rotary Level Indicator

BinMaster introduces a new adjustable rotary level indicator for use as a high level indicator in bins, tanks and silos.
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Radar Level Meter for Liquid Applications

KROHNE, Inc. introduces the OPTIWAVE 5200 C/F, a new 10 GHz FMCW radar level meter for liquid applications in up to a 30m (98 foot) measuring range.
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Free Space Radar Level Transmitters

Endress+Hauser's Micropilot FMR5X series of free space radar level transmitters has software with multi-echo tracking algorithms and functions to suppress interference echoes.
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