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Ultrasonic Level Transmitter

The ultrasonic level transmitter is a kind of digital level measuring instrument controlled by microprocessor. Based on non-contact measuring principle, it is compatible with almost all types of mediums. If you are looking for a level measurement solution for liquid and solid materials, the ultrasonic level transmitter is your best choice.

Our HGUL series ultrasonic level meter is available in two-wire, three-wire and four-wire versions.

Two-wire ultrasonic level transmitter: power supply system and signal output system share the two wires

Three-wire ultrasonic level transmitter: independent power supply loop and signal output loop. When powered by 24VDC system, a 3-core cable can be used, and the negative terminals of power supply system and signal output system will share the same cable core.

Four-wire ultrasonic level transmitter: When powered by 220VAC system or by 24VDC system with completely isolated power supply loop and signal output loop, a 4-core cable shall be used. Whether it is DC or AC power supply, the output is 4~20mADC. High and low switch-outputs are available.

Measuring Range: 0-50m

The ultrasonic level transmitter is built for challenging corrosive mediums and various chemicals. The highly accurate sensor is controlled by PLC system and supports 4-20mA signal output.

Model Selection
Technical Specifications of Ultrasonic Level Transmitters
1. Integrate Type
Measuring range (meter) 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.4-4, 0.3-8, 0.45-8
Accuracy 0.2%FS 0.2%FS 0.2%FS
Current output 4-20mA 4-20mA 4-20mA
Output load 0-500Ω 0-500Ω 0-600Ω
Display LCD 4-digit LCD 4-digit LCD 4-digit
Power supply DC20-32V ≥30mA DC20-32V ≥30mA DC21-27V ≥35mA
Temperature Compensation Whole-range compensation Whole-range compensation Whole-range compensation
Media Temp. -45 ℃ ~ 85 ℃ -45 ℃ ~ 85 ℃ -20 ℃ ~ 75 ℃
Pressure range ±0.1Mpa ±0.1Mpa ±0.1Mpa
Beam Angle 8°, 5°(3db) 8°, 5°(3db) 8°(3db)
Measure cycle 1 second 1 second 1 ~ 20 seconds
Parameter setting 3 buttons 3 buttons 3 buttons
Cable fixing PG 13.5 cable gland PG 13.5 cable gland PG 13.5 cable gland
Housing material ABS Die cast aluminum Cast aluminum with powder coating
Sensor material PVC or PTFE PVC or PTFE PVC or PTFE with metal sleeve
Protection grade IP67 IP67 IP67
Explosion-proof NA NA Ex( ia ) IICT6
Mounting Thread, Flanged, or Bracket Thread, Flanged, or Bracket Thread, Flanged
2. 3-wire Series
Measuring range (meter) 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.4-4, 0.3-8, 0.45-8
Accuracy 0.2%FS 0.2%FS 0.2%FS
Current output 4-20mA 4-20mA 4-20mA
Output load 0-500Ω 0-500Ω 0-600Ω
Display LCD 4-digit LCD 4-digit LCD 4-digit
Power supply DC20-32V ≥30mA DC20-32V ≥30mA DC21-27V ≥35mA
Temperature Compensation Whole-range compensation Whole-range compensation Whole-range compensation
Media Temp. -45 ℃~ 85 ℃ -45 ℃~ 85 ℃ -20 ℃~ 75 ℃
Pressure range ±0.1Mpa ±0.1Mpa ±0.1Mpa
Beam Angle 8°, 5°(3db) 8°, 5°(3db) 8°(3db)
Measure cycle 1 second 1 second 1~ 20 seconds
Parameter setting 3 buttons 3 buttons 3 buttons
Cable fixing PG 13.5 cable gland PG 13.5 cable gland PG 13.5 cable gland
Housing material ABS Die cast aluminum Cast aluminum with powder coating
Sensor material PVC or PTFE PVC or PTFE PVC or PTFE with metal sleeve
Protection grade IP67 IP67 IP67
Explosion-proof NA NA Ex( ia ) IICT6
Mounting Thread, Flanged, or Bracket Thread, Flanged, or Bracket Thread, Flanged
3. 4-wire Series
Measuring range (meter) 0.2-4, 0.25-6, 0.3-8, 0.4-12, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.25-6, 0.3-8, 0.4-12, 0.6-15, 1.2-20, 1.4-30, 1.6-40
Accuracy 0.2%FS 0.2%FS
Current output 4-20mA (optional: with Hart protocol) 4-20mA (optional: with Hart protocol)
Output load 0-500Ω 0-500Ω
Relay output Up-limit and low-limit (total 2 relay output normally open contact) Up-limit and low-limit (total 2 relay output normally open contact)
Relay Spec. 5A 250VAC / 30VDC 5A 250VAC / 30VDC
Display LCD 4-digit LCD 4-digit
Power supply DC20-32V ≥60mA or AC85-265V ≥50mA DC20-32V ≥60mA or AC85-265V ≥50mA
Temperature compensation Whole-range compensation Whole-range compensation
Media Temp. -45 ℃~ 85 ℃ -45 ℃~ 85 ℃
Pressure range ±0.1Mpa ±0.1Mpa
Beam Angle 8°, 5°(3db) 8°, 5°(3db)
Measure cycle 1 second 1 second
Parameter setting 3 buttons 3 buttons
Cable fixing PG 13.5 cable gland PG 13.5 cable gland
Housing material ABS Die cast aluminum
Sensor material PVC or PTFE PVC or PTFE
Protection grade IP67 IP67
Explosion-proof NA NA
Mounting Thread, Flanged, or Bracket Thread, Flanged, or Bracket
4. RS485/Modbus Communication Series
Measuring range (meter) 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40 0.2-4, 0.25-6, 0.3-8, 0.4-10, 0.6-15, 1.2-20, 1.4-30, 1.6-40
Accuracy 0.2%FS 0.2%FS
Current output 4-20mA 4-20mA
Output load 0-500Ω 0-500Ω
Communication RS485 ( Modbus protocol) RS485 ( Modbus protocol)
Baud rate 19200 / 9600 / 4800 19200 / 9600 / 4800
Display LCD 4-digit LCD 4-digit
Power supply DC20-32V ≥60mA DC20-32V ≥60mA
Temperature compensation Whole-range compensation Whole-range compensation
Media Temp. -45 ℃~ 85 ℃ -45 ℃~ 85 ℃
Pressure range ±0.1Mpa ±0.1Mpa
Beam Angle 8°, 5°(3db) 8°, 5°(3db)
Measure cycle 1 second 1 second
Parameter setting 3 buttons 3 buttons
Cable fixing PG 13.5 cable gland PG 13.5 cable gland
Housing material ABS Die cast aluminum
Sensor material PVC or PTFE PVC or PTFE
Protection grade IP67 IP67
Explosion-proof NA NA
Mounting Thread, Flanged, or Bracket Thread, Flanged, or Bracket
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