UL20 – Ultrasonic Liquid Level Sensor for Industrial Tanks
Reliable ultrasonic liquid level sensor for tanks up to 60 m. Ideal for chemical, oil, and gas tanks, as well as industrial process vessels, the UL20 provides non-contact, accurate level measurement with a built-in display for real-time monitoring.
Description
The UL20 is a smart ultrasonic level sensor designed for industrial applications, capable of reliably measuring liquid levels in tanks, storage vessels, and production containers—even over long distances up to 60 m.
It features a local display that provides real-time information on liquid level, temperature, and relay status. The integrated temperature compensation ensures stable and precise readings across a wide range of temperatures (-20 °C to +60 °C).
The UL20 supports multiple operating modes, including switching between level and distance measurement, and offers diagnostic echo charts for quick anomaly analysis. The non-contact measurement ensures low maintenance, long service life, and suitability for aggressive media such as chemicals, oil, or other liquids.
Features
-
Measurement range up to 60 m for water, chemicals, oil, and gas
-
Local display for liquid level, temperature, and relay status
-
Switchable measurement modes: level / distance
-
Intelligent temperature compensation (-20 °C to +60 °C)
-
Diagnostic echo charts for fast troubleshooting
-
Non-contact ultrasonic technology – no wear and tear
-
Easy installation in tanks, industrial vessels, and process equipment
Specification
| Range | 5m,10m,15m,20m,30m,40m,50m,60m |
| Accuracy | 0.25%-0.5% |
| Display | Chinese and English LED |
| Analog Output | Four-wire 4～20mA/510Ωload
Two-wire 4～20mA/250Ω load |
| Relay Output | Two groups:
AC 250V/ 8A or DC 30V/ 5A Status can be programmed |
| Power supply | Standard:24VDC
Optional: 220V AC+15% 50Hz |
| Environment
Temperature |
LED : -20～+60℃
Probe : 20～+80℃ |
| Communication | Option:485,232 Communication
(manufactures agreement) |
| Protection Grade | LED: IP65; Probe: IP68 |
FAQ
1. What types of tanks is the UL20 suitable for?
The sensor is ideal for chemical tanks, oil and gas storage tanks, and large industrial liquid containers.
2. How accurate is the UL20 for long-distance measurements?
With intelligent temperature compensation and ultrasonic technology, the UL20 provides reliable readings even at distances up to 60 m.
3. Can the UL20 be used in chemical or oil facilities?
Yes, its robust non-contact design is suitable for aggressive media.
4. What information does the local display show?
The display shows real-time liquid level, current temperature, and relay status.
5. How does the UL20 differ from the UL103?
The UL103 is designed for shorter distances (up to 15 m) and versatile industrial liquids. The UL20 excels in long-range measurement (up to 60 m) and is optimized for chemical and oil tanks.
Datasheet
UL20 Ultrasonic Liquid Level Measurement Datasheet
