The automatic water level monitoring system – Model EWLR-101 – provides significant quantitative data on the magnitude of the water column, water table and the temperature in a borehole. The system consists of 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. The data can be remotely transmitted at scheduled times with telemetry (GSM/GPRS inbuilt modem) or downloaded on a laptop/mobile in the field through Bluetooth or a cable. The water level data can be corrected for specific gravity variations in water.
The EWLR-101 monitoring solution allows water levels at remote locations to be monitored 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 with little effort and cost.
|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|
|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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