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.

OPERATING PRINCIPLE

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.