Users’ Manual
ESM-40S High sensitivity settlement monitoring system
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Mounting plate
(500x150)
Anchor
HPS-1 6/20x40
Pressure valve
Pressure gage with
pressure regulator
Pressure release valve
Air tube
Quick fitting
connector
Figure 4-3 Pressure gage and valve assembly
4.5 Installation of datalogger
The ESDL-30 datalogger can be mounted near the reservoir, or in the monitoring room, as desired. A
mounting details are shown in figure below. Mark the position of fasteners. Drill 6 mm dia x 40 mm deep
hole. Fix the datalogger using Hilti HPS-1 6/15x40 fasteners provided.
Expandable anchor
HPS-1 6/15x40
(Holes c/c 204x82)
ESDL-30 Datalogger
Wall
Cable from SDI-12 sensor
Computer
12V power supply
Figure 4-4 Mounting details for ESDL-30 datalogger installation on wall/vertical surface
4.6 Connecting the liquid line
Each settlement sensor has quick fitting connectors (slightly bent, top ones) for connecting the fluid to other
sensors and reservoir. An 8 mm od tubing is used to connect the sensors and reservoir together.
Attach the fluid line from the reservoir to the reference level sensor and then to all the other sensors in
sequence from the nearest to the farthest. Cut the desired length of tubes and connect them to the quick
fittings. Close the outlet quick connector (of fluid line) from the last sensor properly with the plug provided
in supply.
