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-2-wire compact transmitter
-±5 mm accuracy
-High pressure
-High-temperature range
-Wide range of probes
-Extremely small deadband
-Rod, cable, or coaxial probe versions
-Plug-in graphic display module
-Explosion-proof variants
-Plastic, aluminum, or stainless steel housing
-Up to 30 m measuring range
-Tracking speed: 900 m/h (= 25 cm/s)
-Advanced threshold management
-False echo exclusion
-Probe Correction Table (SCT)
-Interface measurement (under development)
-PACTware™ compatible
-5 years warranty

-Level, distance or volume measurement of liquids, powders, granules with er > 1.4
-Media with turbulent surface, dense dust, vapor or pressurized gas layers above the product surface
-For all tank shapes, for narrow vessels
-Heavy industrial applications
-Construction materials
-Chemical industry
-Food and beverage
-Power plants
-Oil industry
-Water/wastewater industry

Our new MicroTREK HT–700 guided microwave level transmitter is engineered for continuous level measurement of both conductive and non-conductive liquids, pulps, and solids. With enhanced measuring speed, reduced dead zone, and extended measuring distance compared to its predecessor, the MicroTREK HT–700 sets a new standard in level measurement technology. Additionally, the device now features an expanded power supply range for increased versatility.


The MicroTREK HT–700 operates on the principle of Time Domain Reflectometry (TDR), measuring the travel time of impulse reflections. The electronic module generates microwave impulses in the sensor, which propagate at the speed of light. Upon encountering the surface of the material, a portion of the impulse energy is reflected back, with the reflected signal's travel time measured and processed by the module's electronics. This data is then converted into signals proportional to volume and level. The effectiveness of reflections is heavily dependent on the medium's dielectric constant (εr), which must be at least 1.4 for accurate measurement. Importantly, the propagation speed of microwave impulses remains consistent across vacuum, air, and other gases, ensuring distance measurement independence from the medium within defined limits.

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