Wireless In-place Inclinometer (IPI) System

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Encardio-rite model EAN-52MV is a wireless in-place inclinometer (IPI) system, designed to measure the lateral movement of earthworks or structures. The IPI is used in critical applications where real-time monitoring and early warning are required in order to protect life and valuable assets.

The in-place inclinometer system consists of a string of digital tilt sensors. The string of tilt sensors is positioned inside the inclinometer casing to span the movement zone. Each tilt sensor is fitted with a pair of pivoted sprung wheels. Model EAN-52MV IPI consists of tilt sensors with SDI-12 output.

The tilt sensors are connected through a single 3 conductor bus cable in a daisy chain fashion, connecting each sensor to its next immediate neighbor and finally to the top of the borehole and directly to a suitable datalogger. This has a great advantages at locations with large number of sensors in a borehole, as it eliminates the hassle to accommodate large number of individual signal cables inside the borehole.


The Encardio-model ESDL-30 datalogger can be used with model EAN-52MV IPI system.

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Instrument Name

In-Place Inclinometer - vertical

Sensor Type

Digital MEMS (SDI-12), biaxial; vertical


Consists of chain of digital sensors, for remote continuous monitoring of vertical gagewell


To measure sub-surface lateral movement in ground or deformation of structure such as retaining wall, pile, dam, deep excavation


Lateral movement/ inclination


± 15°

Key Testing / Calibration

Accuracy test, waterproof test, individually calibrated, providing high accuracy & repeatability

Key Feature/Advantage

Hermetically sealed, great noise immunity, resistant to shock loads, readings possible at short intervals, can be reused

Protection (Waterproofing)

IP-68, water resistant up to 100 mwc

Dimension (mm)

Other Inclinometer Products


Vertical Inclinometer


Horizontal Inclinometer


IPI with digital output

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