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ULM-11А1-HF (over 120GHz)

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The world's first non-contact radar transmitter in the explosion-proof design with an extremely narrow beam, operating at a frequency of 120-140 GHz for process measurements. 

ULM-11A1-HF non-contact radar level transmitter is a successor (with an ultra-high-frequency configuration) to the minorULM-11A1model. This level transmitter is built on a new technological design. That is why it has significantly better performance in comparison with the minor model.

Beam width of 20, 40

ULM-11A1-HF is recommended for solving general processtasks of level measurements in various tanks with liquid and bulk products, where explosion protection is required.

Due to zero contact with the measured product, ULM-11A1-HF is ideal for measuring the majority of both neutral, corrosive, explosive, food and high viscosity products. The level transmitter is used to measure the level of coal, coal dust, ore, cement, grain, animal feed, sulfuric acid, hydrochloric acid, nitric acid, fluohydric acid, alkalis, earth oil, gasoline, diesel fuel, aviation kerosene, etc. It combines the best price, high reliability and accuracy of measurements.

Explosion-proofdesign: 1Ех d IIBT6 Gb / Ex tb IIIB T6 Db

Technologies. Innovative process solutions are used in ULM-11A1-HF level transmitter. This is the world's first serial radar level transmitter, operating at a frequency above 120 GHz, focused on process measurements. ULM-11A1-HF uses the frequency-modulated continuous wave (FMCW), which, combined with an extremely high operating frequency, provides the highest sensitivity and reliability of measurements.

Scope of application. ULM-11A1-HF level transmitter is used for measuring the level of sulfuric acid, hydrochloric acid, nitric acid, fluohydric acid, etc., alkalis, water, various solutions, chemicals, earth oil, dark and light oil products, fuel oil, bitumen, alcohol, gas condensate, cement, ore, crushed stone, sand, coal, coal dust, chipped wood, wood grinder, soot (carbon black), etc.

Uniform design. ULM-11A1-HF level transmitter has a uniform design to match the rest of explosion-proof level transmitters of the ULM series.

Compatibility. ULM-11A1-HF level transmitter is fully compatible with all other level transmitters of ULM series both in terms of the protocol and the electrical connection. This allows the customer to build a level measurement system in the company's tank farm at the best price/quality ratio.

  • explosion-proofdesign;
  • reliable measurement of the level of liquid and bulk products;
  • non-contact measurements of the level of corrosive products;
  • optimal price/measurement accuracy ratio;
  • availability of a design option for level measurements in tank trucks;

Maximum absolute level measurement error   ±3mm
Measuring beam width 20, 40
Level measuring range 0,6 ÷ 50 (30) m
Operating ambient temperature
at the level transmitter mounting location 
-60 to +500С (no heating housing is required)
Monitored product temperature unlimited
Supply voltage 24V DC
Design Explosion-proof, 1Ех d IIBT6 Gb / Ex tb IIIB T6 Db
Digital interfaces RS485 (Modbus), HART
Analog output 4-20 мА

Technical descriptions

Operation Manual