Guided-Wave-Radar-Level-Transmitter-TDR
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Guided-Wave-Radar-Level-Transmitter-GRLM-70

  

Guided Wave Radar Level Transmitter (TDR) GRLM-70


Radar level meters with guided wave (principle TDR )
• Suited to continuous level measurement of various liquid, mush and bulk-solid materials.
• Universal use, direct mounting into containers, silos, vessels, reservoirs, etc.
• Stainless steel rod or rope electrode
• Measuring range up to 40m
• Linear measurement in non-conductive and in differently shaped containers
• Quick view measured values on the display
• Simple installation and setting
• Current output (4 ... 20 mA), HART® protocol

GRLM® radar level meters 

are compact measurement devices including microwave pulse transmitter, central processor unit and display module. The electronics transmits very short electrical pulses (0.5 ns), which are linked to a one wire transmission line (measuring electrode). Measuring electrode can be made of solid rod or rope. The pulse propagates along the electrode in the form of electromagnetic wave toward the level surface, where it is partly reflected and the reflected component is returned to the receiving module of the electronics. The electronics measures the time of flight of electromagnetic wave and the distance to the surface level is calculated. According to the level height, the transmitter delivery's an electrical output proportional to measured level. The measured value is also displayed on a local digital display.


Radar level meters are resistant against changes in the atmosphere (pressure, temperature,
dust, steam) and to changes in medium parameters (change in dielectric constant, conductivity).
Radar Level Transmitter

Data Sheet

Manual