Description
Digital Seepage Monitoring System – Model ESM-12S
The ESM-12S digital seepage monitoring system is an advanced solution for measuring and monitoring seepage and water flow in dams, embankments, and open channels.
Accurate monitoring of seepage quantities through, around, or beneath a dam is critical for evaluating its structural integrity and long-term performance.
The system continuously records seepage rate data, providing valuable insights into dam safety assessment, foundation behaviour, and drainage system efficiency.
The ESM-12S system includes a high-precision digital pressure sensor that converts water head into flow rate, enabling real-time, low-maintenance data acquisition. It integrates seamlessly with ESDL-30 dataloggers and optional weir systems to form a complete automated seepage monitoring setup.
System Components
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Model ESM-12S/1 – Digital seepage monitoring sensor
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Model ESDL-30 – Datalogger with SDI-12 digital interface
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Model ESM-10 Weir (optional, ordered separately)
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Standard accessories, including:
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Slotted PVC pipe
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Desiccant unit with moisture trap
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Terminal box
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Mounting plate, clamps, and fasteners
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Specifications
| Parameter | Details |
|---|---|
| Range | 1000 mm |
| Sensor Accuracy | ± 0.2 mm |
| Resolution | 0.025 % FS |
| Long-term Stability | ± 0.05 % FS per year |
| Output Signal | Digital, SDI-12 serial interface |
| Over-range Capacity | 200 % FS |
| Operating Temperature | −20 °C to +70 °C |
