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TULI integrated ultrasonic level gauge

Level measurement in the industrial sector, especially in the water treatment industry ● Water and wastewater treatment

Pump room, water collecting well, biochemical reaction tank, sedimentation tank, mud storage tank, etc

Mortar pond, coal slurry pond, water treatment

Classical ultrasonic echo analysis. The ultrasonic transducer sends out an ultrasonic pulse and is reflected back when it encounters the surface of the measured medium. The reflected echo is received by the same transducer and converted into an electrical signal. Ultrasonic pulses propagate at the speed of sound waves, and the time interval from the transmission of ultrasonic waves to the reception of echoes is proportional to the distance from the transducer to the surface of the measured medium. So by measuring and analyzing the time difference of the ultrasonic signal returned from the liquid surface, the distance from the sensor to the liquid surface can be calculated.

Because the transmitted ultrasonic pulse has a certain width, the reflected wave and the transmitted wave in a small area close to the transducer overlap, which cannot be identified and the distance value cannot be measured. This area is called the measurement dead zone. We adopt the technology of intelligent adjustment of the transmission pulse width, and automatically adjust the transmission pulse width according to the received signal strength of the reflected wave, so that the measurement dead zone can be adjusted, so that the instrument can work in a smaller dead zone.

● Rugged and stable sensors are suitable for harsh industrial occasions;
● Unique echo processing technology and advanced algorithms incorporating rich field experience can effectively overcome foam, gasp, and other on-site interference; ● The ultrasonic transducer uses imported piezoelectric ceramic materials, and acoustic matching technology improves emission efficiency;
● The built-in temperature sensor of the transducer realizes real-time automatic temperature compensation of measured values;
● Program-controlled automatic emission energy adjustment takes into account both long range and small blind areas;
● The blind area can also be set manually to shield the interference signals near the probe;
● Easy to install and use.

Measuring performance

Range: 0 ~ 5m, 0 ~ 10m, 0 ~ 15m

Dead zone: 0.4m, 0.4m, 0.5m

Emission angle: 5 °, 5 °, 3 °

Resolution: 0.001m

Accuracy: ± 0.5% FS

Repeatability: ± 3mm

Temperature compensation: automatic temperature compensation

Display: LCD display

On-site setting: complete by button


Analog output: 2-wire or 4-wire 4 ~ 20mA

Fault output: 20.5mA, 22mA, 3.9mA

powered by

Two-wire system: 16 ~ 36VDC, 22.5mA

Four-wire system: 24VDC / 220VAC, 1VA

Physical properties

Transducer: PU / PC

Transducer seal: silicone

Shell: aluminum

Housing seal: Silicone rubber

Cover window: Polycarbonate

Ground terminal: stainless steel

Weight: 2kg or 3kg (depending on process link)

Protection class: IP67

Explosion-proof grade: ExiaIIBT6Ga

Connection method: Thread M66 × 2 (0 ~ 5m, 0 ~ 10m)

Thread M95 × 2 (0 ~ 15m); bracket or flange

Environmental performance

Process temperature: -40 ℃ ~ 70 ℃

Working pressure: <0.1MPa