Ultrasonic Water Level Sensor
Integrated non-contact liquid-level transmitter with selectable 5 to 30 m ranges and 4-20 mA or RS485 Modbus RTU output.
Category: Water & Wastewater Instrumentation
Appearance, connectors and accessories are confirmed with the ordered configuration.
Specifications & version options
| Measurement | Non-contact ultrasonic liquid level |
|---|---|
| Range options | 5 / 10 / 15 / 20 / 30 m |
| Output options | 2-wire or 4-wire 4-20 mA; 4-wire RS485 Modbus RTU |
| Supply options | 24 VDC or 220 VAC; 12 VDC on the RS485 configuration only |
| Accuracy | 0.5-1% |
| Resolution | ±3 mm or 0.1% FS, whichever is greater |
| Display | LCD with English menu |
| Ingress protection | Probe IP68; display unit IP66 |
| Temperature | Probe -20 to +80 °C; display unit -20 to +60 °C |
| Process connection | Range-dependent threaded connection; confirm before quotation |
| Blind zone | Range-dependent; confirm against maximum liquid level |
SG codes for enquiry
9 sourcing references from “Radar and ultrasonic non-contact level transmitters”. Put an SG code in the RFQ so we can match the same catalog row.
SG-RLT-101SG-RLT-102SG-RLT-103SG-RLT-104SG-RLT-105SG-ULT-102SG-ULT-103SG-ULT-104SG-ULT-101
Check the echo path before selecting ultrasonic level measurement
The reviewed specification supports an integrated non-contact transmitter, but site conditions determine whether the echo will remain stable.
- Choose a 5, 10, 15, 20 or 30 m configuration. The blind zone and threaded process connection change with the selected range.
- Mount the sensor axis perpendicular to the liquid surface and keep pipes, braces, ribs, ladders and mixing equipment outside the acoustic beam.
- Foam, bubbles, mist, steam, turbulence and strong temperature gradients can weaken or distort the return echo.
- Keep the maximum liquid level below the configured blind zone. A stilling arrangement can help only after its dimensions and opening are reviewed.
- Use a sun shield or enclosure where direct sunlight or large temperature changes can heat the display housing.
- Select radar, hydrostatic or another method when foam or site geometry makes ultrasonic measurement unreliable.
Typical applications
- Remote tank and reservoir level monitoring with a clear liquid surface
- Water-storage, irrigation and well-head installations where top mounting is practical
- Open-channel or river-level projects after the mounting geometry and echo path are reviewed
- PLC, SCADA or telemetry projects using 4-20 mA or RS485 Modbus RTU
Inquiries: contact@sungeneiot.com · sungeneiot.com
These are typical reviewed options for this product family, not a single orderable SKU. Final model, connectors, certificates and availability are confirmed in the quotation.