Stork Digital Submersible Liquid Level Sensor
The SLS range of submersible liquid level transmitters has been developed with a durable stainless steel housing, enclosing an isolated diaphragm silicon piezo-resistive sensing element.
It features an integrated cable assembly for permanent submersion in liquids up to 100m deep, ensuring continuous operation.
The internal electronics convert the analogue output from the silicon sensor into SDI-12 digital communications. This protocol, version 1.4, provides serial output for level and temperature readings.
Our SDI-12 communications software allows sensor calibration, and built-in density correction using the integrated temperature sensor, and supports up to 9 sensors for data logging and diagnostics.
With an onboard 16-bit microprocessor, the submersible transmitter achieves high accuracy, stability, and repeatability. It performs advanced functions like linearisation, temperature compensation, and calibration.
These features make it ideal for demanding applications such as environmental monitoring and flood defence systems.
If you have any questions about any of our submersible level sensors, contact us today.
Specifications of Submersible Level Sensor, Digital – SLS-D
| Sensor technology | Piezo-resistive Silicon Sensor |
| Output Versions | SDi-12, V1.4 |
| Supply voltage | 6-36V dc |
| Pressure reference | Gauge (standard), Sealed Gauge, Absolute |
| Level ranges | 1, 2.5, 3.5, 5, 10, 20, 30, 50, 100mWG (Engineering units selectable in software include m, mm, inches, feet, mbar) |
| Safe over pressure | 1.5 times rated pressure |
| Burst Pressure | 3 times rated pressure |
| Accuracy (NL&H) | ≤ ±0.15 % / ≤ ±0.10 % / ≤ ±0.06 / % FS (dependent on range) |
| Long term stability | ≤ ±0.10 % FS |
| Compensated temperature range | 20 °C ± +20 °C |
| Media temperature | -10 °C to +60 °C, non-freezing |
| Weight (g) | Transmitter: <300g, Cable: 48g per mtr |
| Environmental Protection | IP68, Fully submersible up to 100m depth |
Applications
- Environmental monitoring
- V-notch weir flow measurement
- Rivers, reservoirs and boreholes
- Laboratory & research testing
- Telemetry and data logging
- Flood defence monitoring and research
- Academic research
