NGM - Guided Wave Radar Level Transmitter

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Product Specifications
Measuring RangeLiquids up to 65 Feet
Fittings3/4" NPT, G 3/4, ANSI Flange 1½"...4", DIN Flange DN40...DN100
Wetted Parts St. Steel, PTFE
Operating Pressure-30"Hg...580 PSIG (-1..40 Bar)
Media Temperature-58...485 °F (-50...250 °C)
Accuracy± 3 mm or 0.03% of Measured Value
Power Supply12-30 VDC, 4-Wire
Output4-20 mA, PNP Switching Output
Product Features
Suitable for Many Liquids and Light Solids
Independent of Density, Temperature, Pressure and Humidity
Modular Probe Design
Complete Galvanic Insulation of Device Electronics

The KOBOLD NGM Series guided wave radar level transmitter uses time domain reflectometry (TDR) technology, also known as “guided microwave” or “guided wave radar". This means that low-energy and high-frequency electromagnetic impulses, generated by the sensor’s circuitry, are propagated along the probe, which is immersed in the liquid or solid to be measured. When these impulses hit the surface of the media, part of the impulse energy is reflected back up the probe to the circuitry, which then calculates level from the time difference between the impulses sent and the impulses reflected. The KOBOLD NGM Series guided wave radar level transmitter’s sensor can transmit the media level as a 4-20 mA analog output, or it can convert the values into a freely programmable switching output signal.

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Other Members of the KOBOLD Group:Henschen, Unirota, Heinrichs, MesUra Henschen GmbH KOBOLD Unirota Kft. Heinrichs KOBOLD Group MesUra KOBOLD Messring GmbH
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