Users’ Manual
EAN-90M Tiltmeter
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2 MODEL EAN-90M TILTMETER
2.1 Principle of operation
Model EAN-90M tilt meter is built around a precision accelerometer
and suitable signal conditioning circuit mounted inside a stainless
steel housing. The accelerometer senses force of acceleration due to
gravity which is maximum when accelerometer is rotated to full 90
degree tilt position and is zero (minimum) when tilt angle of
accelerometer is zero. For in-between tilts, force experienced by
accelerometer is equal to product of sine of tilt angle and acceleration
due to gravity. The tilt sensor thus provides a bipolar DC voltage
output proportional to the sine of tilt angle measured by the tilt meter.
The output is zero volts for a truly vertical position.
The sensor provides a relatively low cost tilt measurement solution
but still offers excellent resolution, long term stability and a low
thermal sensitivity.
The tilt meter can be fixed to any vertical surface, horizontal floor or
ceiling by means of suitable mounting accessories consisting of
brackets and anchors. These are available separately when ordered.
The EAN-90M is not intended for absolute determination of tilt of
structures. Tilt meter measures change in tilt of a structure to which
the sensor is attached.
The initial tilt reading for each tilt sensor is recorded after it has been
mounted on the structure to be monitored. Subtracting initial tilt
reading from subsequent tilt reading gives change in tilt of structure
over a period of time.
2.2 Tool and accessories
Following tools and accessories are required for proper installation of
tilt meter.
1 Power drill
2 Concrete / Masonry drill bit 8 mm
3 Spanner 8/9, 12/13 mm
4 Allen key 5 mm
5 Cloth for cleaning
2.3 Installation of Tiltmeter
Model EAN-90M tilt meter can be fixed to a vertical surface, suspended from ceiling or mounted on the
floor with help of suitable mounting arrangement/bracket available from Encardio-rite as optional
accessories.
