HLVR series digital ultrasonic liquid level sensor with RS485 communication, MODBUS-RTU protocol, can read real-time data such as instrument liquid level temperature through the master computer, read and write various custom tags, modify sensor parameters and so on. The liquid level sensor is compact and economical level measuring device. Protection class for the ultrasonic liquid level sensor is IP68.

Technical Specifications

✔ Range :( Liquid level measurement)
HLVR4:  0.00~4.00m (Dead zone 0.20m)
HLVR6:  0.00~6.00m (Dead zone 0.25m)
HLVR8:  0.00~8.00m (Dead zone 0.30m)
HLVR12:  0.00~12.00m (Dead zone 0.50m)
HLVR20:  0.00~20.00m (Dead zone 0.80m)
HLVR30:  0.00~30.00m (Dead zone 1.20m)
Remarks: For liquid level with strong fluctuations and liquid volatility, also solid level measurement, the effective range is about 50% of the above data.
✔ Accuracy: 0.2% of actual range (in air, calm liquid surface, standard signal strength)
✔ Output resolution: 1mm
✔ Output mode: RS485 standard level
✔ Protocol: MODBUS-RTU
✔ Input power: DC3.5～5v ,DC9～12V ,DC 20～32V
✔ Temperature compensation: full range automatic
✔ Working temperature: -35 ° C ~ +75 ° C
✔ Pressure range: -0.1MP to +0.2MP (relative to standard atmospheric pressure)
✔ Sound beam angle: 8° (3db)
✔ Detection period: 1.5 seconds (adjustable)
✔ Housing material: ABS / PVC / PTFE
✔ Enclosure protection rating: IP68
✔ Corrosion resistant and strong corrosion
✔ Ultrasonic level probe lead cable length: 10m (can be customized cable length, in line with the loop load less than 500Ω)
✔ Process connection: thread, flange, bracket