Page 14 - Consolidated Catalog

Model EWLR-101
Automatic Groundwater Level Monitoring
Model EWLR-101 automatic water level monitoring system provides significant
quantitative data on the magnitude of water column, water table and
temperature in a borehole. The monitoring system is a set of absolute water
level sensor with cable, automatic datalogger and required data retrieval/
transmission options. The datal ogger is programmed to automatically store
the water head/pressure data at fixed intervals with a minimum scan/upload
interval from five seconds to 168 hours with different options to download
data. Data can be remotely transmitted at scheduled times with telemetry
(GSM/GPRS inbuilt modem) or downloaded on a laptop/mobile in field
through Bluetooth or a cable.
The water level data can be corrected for specific gravity variations in water.
Automatic correction for atmospheric pressure variation is provided by an
in-built barometric pressure sensor in the datalogger, thus eliminating the
requirement of a vented tube cable and desiccant chamber.
EWLR-101 monitoring solution allows water level at remote locations to be
monitored continuously in near real time from a central location and also
sends alerts through SMS and email. The solution enables researchers and
decision makers quick access to the groundwater data with little effort and cost.

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

*For more details please refer to datasheet # 1216.

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