Users’ Manual
ESM-12S Digital seepage monitoring system
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The datalogger’s configuration software is user friendly, which makes the commissioning of digital seepage
monitoring system quite easy and fast. At locations covered by a mobile network, the data from the ESDL-
30 datalogger can be transmitted remotely to a central/cloud server.
2.6 Model ESM-10 Weir or V-Notch
The seepage monitoring system can be supplied with a stainless steel V-notch or rectangular weir, if
ordered separately.
The weir comprising of stainless steel plate, is provided in a suitable size and angle, to suit expected flow
rate. The most used size is rectangular or 90° V-notch type.
Other sizes of weir can also be provided, depending on site requirements. In case of a low flow rate, a V-
notch weir with an angle of less than 90° may be used. The weirs are normally manufactured as per Indian
Standard IS: 9117-1979.
Sizes available: 22.5°, 45°, 90° and rectangle
Range available: 10 to 70 litres/second
Crest
Crest length
(L)
1:4 Slope
Stainless steel,
3 mm thk.
90°
Crest length
(L)
Crest
Figure 2-4 Model ESM-10 Weir - Rectangular and V-Notch type
