

Automatic Water Level Monitoring System
Model EWLR-101
Description
The automatic water level monitoring system – Model EWLR-101 – is used to get significant quantitative data on the magnitude of the water column, water table, and temperature in a borehole. The system contains an absolute water level sensor with a cable and an automatic data logger with the required data retrieval/transmission options. The data logger is programmed to automatically store the water head/pressure data at fixed intervals with a minimum scan/upload interval from 5 seconds to 168 hours with different options to download the data. Data transmission can be set remotely at scheduled times with telemetry (a GSM/GPRS inbuilt modem) or downloaded on a laptop/mobile in the field through Bluetooth or a cable. The water level data can be modified for specific gravity variations in water. The EWLR-101 monitors water levels at remote locations continuously in near real-time from a central location and also sends alerts through SMS and e-mail. This solution gives researchers and decision-makers quick access to the comprehensive groundwater data efficiently and cost-effectively.
Specifications
| Input | EPP-30V, EPP-40V, EPP-60V pressure sensor |
| Sensor Range (MPa) | EPP-30V: 0.2, 0.35, 0.5, 0.7, 1.0, 1.5, 2.0, 3.5 (20, 35, 50, 70, 100, 150, 200, 350 m WC) EPP-40V: 0.35, 0.5, 0.7, 1.0, 2.0 (35, 50, 70, 100, 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 |
| Data logger | ESCL-10VT/ESDL-30 |
| Logger Memory capacity | 8 MB Flash RAM can store 3,145,728 data points |
| Communication port | One RS-232 serial port |
| Measuring modes | Linear or event sampling |
| Power supply | Lithium cells, Battery life is more than 5 years for 4 measurement/day and one transmission/day. |
| Bluetooth port | Detachable dongle |
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