Description
Model: EWLR-101
The EWLR-101 Automatic Water Level Monitoring System is an advanced, fully automated solution for continuous measurement of groundwater level, water column pressure, and temperature in boreholes. Designed for remote, real-time monitoring, it provides accurate and reliable hydrological data to support environmental studies, groundwater management, and geotechnical applications.
The system integrates a high-precision absolute pressure sensor (Model EPP-30V, EPP-40V, or EPP-60V series) with a digital data logger featuring multiple communication and data retrieval options. The logger automatically records water level and temperature readings at programmable intervals ranging from 5 seconds to 168 hours, enabling flexible and long-term unattended operation.
Data can be transmitted automatically at scheduled intervals via telemetry (GSM/GPRS inbuilt modem), or downloaded locally using a Bluetooth connection or cable. The stored data can also be corrected for specific gravity variations to ensure high accuracy.
The EWLR-101 system supports remote configuration and real-time alerts via SMS and email, giving researchers and authorities immediate access to groundwater data for decision-making, early warning, and efficient water resource management.
Specifications
| Parameter | Description |
|---|---|
| Compatible Sensors | EPP-30V, EPP-40V, EPP-60V Pressure Transducers |
| Sensor Range (MPa) | EPP-30V: 0.2, 0.35, 0.5, 0.7, 1.0, 1.5, 2.0, 3.5 (20–350 m WC) EPP-40V: 0.35, 0.5, 0.7, 1.0, 2.0 (35–200 m WC) EPP-60V: 0.10, 0.20 (10–20 m WC) |
| Sensor Accuracy | ±0.2% FS (standard), ±0.1% FS (optional) |
| Cable | CS-1102 or CS-1302, four-conductor cable |
| Data Logger | ESCL-10VT or ESDL-30 |
| Memory Capacity | 8 MB Flash RAM (stores up to 3,145,728 data points) |
| Communication Port | One RS-232 serial port |
| Bluetooth Port | Detachable dongle for local wireless communication |
| Measuring Modes | Linear or event-triggered sampling |
| Power Supply | Lithium batteries; >5 years life at 4 readings/day and 1 transmission/day |
| Telemetry Options | GSM / GPRS modem with SMS & email alert capability |
| Scan / Upload Interval | Programmable from 5 seconds to 168 hours |
