Uson-31 Ultrasonic Level Transducer
The transducer and transmitter of Uson-31 Ultrasonic Level Transducer can be installed separately. Design for real-time monitor of liquid level measurements, with high precision, reliable performance, durable life, convenient installation and free maintenance.
The transducer and transmitter of Uson-31 Ultrasonic Level Transducer can be installed separately. The Protection Level of the transducer is up to IP68, while the transmitter is IP65, with Explosion-Proof certificates. Design for real-time monitor of liquid level measurements, with high precision, reliable performance, durable life, convenient installation and free maintenance.
The transducer sends out high frequency ultrasonic pulses. When a pulse hits liquid surface, it is reflected back. The reflected ultrasonic wave is received by the transducer and converted into an electronic signal. The time interval between transmitted ultrasonic pulse and received ultrasonic pulse is directly proportional to the distance between transducer and liquid surface. The relationship between sound wave travel distance S, travel speed C and time interval T can be expressed by a formula: S=C×T/2.
● With three selectable ranges (5m, 10m and 15m).
● Certified for high level of Flame-Proof Enclosure explosion protection: Ex d II C T6 Gb.
● With temperature compensation function, offers high accuracy and strong adaptability.
● RS-485 communication interface to reach real time monitoring, convenient and efficient.
● Special echo signal processing algorithm is used, can effectively avoid false echo waves.
● Ingress Protection rating of the transducer is up to IP68, while the transmitter is IP65.
● Preventing strong corrosion with PVDF transducer.
● For harsh conditions. The transducer and transmitter can be installed separately.
● Convenient operation on language setting.
● Contactless measurement ensures no wear during operation and minimizes maintenance costs.
● EMC design of the product complies with IEC61000-4 (GB/T 17626.2) standard in EFT (LT: A), ESD (LT: A) and surge.
| Measurement range | 5m, 10m, 15m |
| Transducer | Standard: ABS |
| Anti-corrosion: PVDF | |
| Dead zone | ≤0.3m(5m/10m) |
| ≤0.6m(15m) | |
| Resolution | ±0.5% of the measurement range |
| Beam angle | 6°（5m） 8°（10m） 10°（15m） |
| Accuracy | ≤1% |
| Display | Chinese + English LCD Display |
| Buttons | Three |
| Rated input voltage | Four-wire（Non-Explosion-Proof）：85～264V AC 50/60Hz18～36V DC Four-wire（Flame-Proof）：85～240V AC 50/60Hz18～36V DC |
| Two-wire：18～30V DC | |
| Signal output | Two-wire：4～20mA |
| Four-wire：4～20mA Optional: RS-485/Relay | |
| Relay Contact rating | 4A 250V AC/30V DC |
| Ambient temperature | Transducer: -20～+80℃ Transmitter : -20～+60℃ |
| Process temperature | Transducer: -20～+80℃ Transmitter : -20～+80℃ |
| Process pressure | Normal |
| Cable entry | M20×1.5 |
| External housing | ABS + Aluminum alloy |
| Connect cable | Standard is 10m，length can be customized |
| Process connection | Thread connection |
| Flange | |
| Ingress Protection | Transducer: IP68 Transmitter: IP65 |
| Explosion-Proof | Ex d IIC T6 Gb |
● For remote real-time liquid level control at hazardous places such as petroleum, chemical industry, environmental protection, metallurgy and mining, especially for continuous level measurement at sewage treatment plants, waterworks, opening tanks, rivers, lakes and reservoirs.
