KROHNE OPTIFLEX 7200 Level Transmitter is a 2-wire guided radar level transmitter based on the Time Domain Reflectometry (TDR) technology. With its large choice of probe types and materials, this level transmitter is the high-end guided radar for level and interface measurement in the chemical or oil and gas industries. It is suitable for storage or process tanks up to 60 m / 196.85 ft, containing all kinds of liquids – from hydrocarbons like slop oil or benzene to solvents and acids to cooling water or condensate.

The OPTIFLEX 7200 uses Time Domain Reflectometry (TDR): low-energy electromagnetic pulses travel along the probe, and the time of flight of the reflected signal is converted into distance. For interface measurement, a portion of the pulse continues through the upper liquid and reflects from the lower liquid interface, enabling simultaneous measurement of total level and interface level.

The patented Dynamic Gas-phase Compensation (DGC) algorithm automatically compensates for measurement errors caused by changing gas phases above the product — a common challenge in chemical and petrochemical tanks. The ceramic process seal system provides superior resistance to high temperatures and aggressive chemicals compared to conventional graphite seals.

Probe options include single and double rod, single and double cable, and coaxial probes in various materials, allowing users to select the optimal configuration for their specific tank geometry, product characteristics, and process conditions.