Geokon 6101, Инструкция по эксплуатации, Страница: 8 / 14

3
For Horizontal installations point the Peg #1 in the same direction as the expected tilt
4. Taking Readings ________________________________________________
Connect the sensor to the readout and check to see that the system is operating. Clean all dirt from both the sensor
and the tiltplate. It is a good idea to let the sensor warm up for 2-3 minutes before taking readings.
The tiltplate that is being observed should have an I.D. number written on it
Some tiltplates are numbered 1 to 4 counter-clockwise and others
clockwise
. In the following the number in
bold
pertains to the
clockwise
numbering
When taking readings in the
vertical plane
first hold the + end of the tiltmeter so that the long bar lies to the left
of pegs 1 and 3 and the short bar lies on top of peg 4,(
2
). Now take the first reading. Turn the tiltmeter end for
end and position the long bar to the right of pins 1 and 3 with the short bar resting on top of peg 2(
4
). Now take
the second reading. The second reading is the reverse (180

) of the first reading. This procedure eliminates any
zero offset in the sensor. See Figure 1 for the positioning of the bars relative to the pegs.
When taking readings in the
horizontal plane
the tilt can be measured in two orthogonal directions. First hold the
+ end of the tiltmeter over peg 1, so that the long bar on the underside of the tiltmeter lies to the left of pegs 1 and
3 and the short bar lies against peg 4(
2
), as shown in figure 1 Now take the first reading. Turn the tiltmeter end
for end so that the + end of the tiltmeter is over peg 3 and position the long bar to the right of pins 1 and 3 with
the short bar resting against peg 2(
4
), as shown in figure 1. Now take the second reading. The second reading is
the reverse (180

) of the first reading. This procedure eliminates any zero offset in the sensor.
Repeat the procedure for pegs 2 and 4 referring to figure 1 for the positioning of the long and short bars on the
underside of the tiltmeter. Begin with the plus end of the tiltmeter over peg 4.
Note: Care should be taken to avoid nicking or cracking the ceramic surface of the tiltplate pegs. The
ceramic material is very brittle
.