UST-10LX - Ultrasonic Liquid Level Sensor IP67 - PVDF Corrosion-Resistant

Product Specification

1. ​Product Overview​

The +GF+ UST-10LX is a high-precision ultrasonic level transmitter engineered for continuous non-contact level measurement in industrial liquids and process applications. Featuring a robust ​PVDF sensor housing​ with ​IP68/IP69K protection, this device withstands aggressive chemicals, high-pressure washdowns, and extreme temperatures (-40°C to +80°C). Its advanced ​ceramic transducer​ emits 75kHz ultrasonic pulses for reliable measurement up to ​10 meters​ with ±1% accuracy. The sensor incorporates ​intelligent echo processing​ to ignore false signals from foam, vapor, or internal obstructions. Designed for SIL 2 safety applications per IEC 61508, it includes automatic temperature compensation and self-diagnostic functions. The compact 1.5" NPT threaded design enables versatile mounting in tanks, sumps, and open channels across water/wastewater, chemical, and food processing industries.

2. ​Key Technical Parameters​

• ​Measurement Range: 0.25–10 m (liquid), 0.15–5 m (solids)
• ​Accuracy: ±1% of measured value or ±3mm (whichever is greater)
• ​Ultrasonic Frequency: 75kHz (±1kHz)
• ​Beam Angle: 8° (-3dB point)
• ​Output Signals: 4-20mA HART / RS-485 Modbus RTU
• ​Process Connection: 1.5" NPT male thread (AISI 316L)
• ​Pressure Rating: 3 bar at 20°C
• ​Temperature Compensation: -40°C to +80°C (integrated PT1000)
• ​Electrical Protection: Reverse polarity, surge (4kV), short-circuit
• ​Certifications: SIL 2 (IEC 61508), IP68/IP69K, ATEX Zone 0/20

3. ​Primary Applications​

This sensor excels in challenging measurement scenarios:

• ​Wastewater Treatment: Sludge level monitoring in clarifiers and digesters
• ​Chemical Processing: Acid/alkali tank level control with vapor compensation
• ​Food & Beverage: Hygienic level sensing in CIP-cleaned vessels
• ​Power Generation: Cooling tower basin level management
• ​Pulp & Paper: Stock tank level control with foam penetration
• ​Pharmaceutical: USP Class VI compliant measurement in bioreactors
• ​Mining: Leachate level monitoring in tailings ponds
• ​HVAC Systems: Chilled water storage tank automation
  Its ability to ignore foam and vapor makes it ideal for aerated liquids, while the PVDF construction resists corrosion from chlorine, hydrocarbons, and acidic media.

4. ​Functional Advantages​

• ​Reliable Echo Processing:
  • Advanced DSP filters out interference from agitators/vapor
  • Automatic false echo suppression (up to 5 simultaneous echoes)
• ​Self-Maintaining Operation:
  • SonicClean™ function prevents coating buildup
  • Automatic gain control adapts to changing media properties
• ​Installation Flexibility:
  • 20° beam angle enables off-center mounting
  • ±0.1%/°C temperature compensation
• ​Safety & Compliance:
  • SIL 2 hardware fault tolerance (HFT=1)
  • ATEX/IECEx Ex ia IIC T6 Ga certification
• ​Lifecycle Benefits:
  • 5-year transducer lifespan (50 million pulses)
  • Predictive diagnostics via HART/Modbus

5. ​Measurement Technology​

The UST-10LX operates via ​time-of-flight measurement:

1. ​Pulse Transmission: Ceramic transducer emits 75kHz ultrasonic bursts
2. ​Echo Reception: Sensitive receiver detects reflected signals
3. ​Signal Processing:
   • Time-to-digital converter calculates distance: d = (c × t)/2
   • Sound velocity (c) dynamically adjusted via temperature/PID
4. ​Error Compensation:
   • Beam focusing minimizes tank wall interference
   • Multi-echo tracking ignores fixed obstructions
5. ​Output Generation:
   • 4-20mA output with HART protocol (5ms update rate)
   • Modbus registers store diagnostics (echo strength, temperature)
     The PVDF housing provides 0.02mm surface smoothness to prevent fouling, while the hermetically sealed transducer maintains calibration despite pressure fluctuations. SIL 2 compliance is achieved through redundant processing paths and continuous circuit diagnostics (DC≥90%).

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

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