MEMS Digital Inclinometer System with Android
Instruction Manual
ICM0099A
9
11.
Prior to lowering the probe for the second pass, remove the cable grip
to avoid
accidentally catching the aluminum crimps on the cable grip (this will impact load the
crimps, cable, and probe). Once the probe is at the bottom of the borehole, replace
the cable grip and position the probe for the deepest reading.
12. Repeat Steps 7-9 to take a second pass of readings in the A- direction. During this
second pass, checksum data will be displayed underneath each reading. Ensure
that these remain small and consistent; however, checksums can vary due to
different site conditions. Large checksums can indicate errors in probe positioning or
fouling of the probe. Expect checksums to be slightly larger when the probe
encounters an expansion coupling in the casing (if applicable). Refer to Section 6
for further detail on checksums.
13. The RST MEMS Digital Inclinometer has the ability to perform data reduction in the
field, please refer to Section
X
4.2.8
X
for information on viewing and validating the data.
14. Upon completion of the survey, close the inclinometer app, turn off the power to the
reel, and disconnect the probe. Wipe off the probe and cable. If possible, rinse the
probe and cable with fresh water. Replace end caps on the cable and probe.
Replace the protective cap on the casing.
15. Upon returning to the office, clean the instrument and reel once more to remove any
moisture from the instruments and the case. Recharge the batteries for the Reel
and the Android data collection device.
Please refer to Section 8 for proper care
and maintenance of the system.
16. If required, transfer the collected data files via email or file transfer.
3
I
NCLINOMETER
C
ABLE AND
R
EEL
The RST MEMS Digital Inclinometer System comes with a durable lightweight reel that is
easy to handle. Since only a pair of conductors is needed in the cable, the weight and
dimensions of the cable are drastically reduced as compared to a traditional analog cable.
The reel is battery powered and houses the electronics used for wireless communication.
An important part to any inclinometer casing survey is the repeatability of the depth
measurements. It is extremely important that measurements be consistently within 5mm
(0.25
”) of one another between subsequent surveys. To facilitate accurate repeatability, two
aluminum cable grips
are provided with the system, for 70mm (2.75”) and 85mm (3.34”) OD
casing respectively. The cable grips provide a solid reference for the cable crimps to sit in.
The result is that operator error is reduced, checksums will be smaller and surveys more
accurate.
The thin, strong cable contains a Kevlar® strength member, allowing a long length of cable
to fit on a small reel with no stretch. The aluminum sleeved measure marks are precision
swaged to the cable and are not subject to tearing when handling. The measure marks are
spaced at 0.5 metre or 2 feet intervals. The cable is marked with a red measure mark and a
label every 5 metres or 10 feet, depending on whether the metric or imperial system is being
used. The urethane jacket is highly abrasion resistant and maintains flexibility at low
temperatures. It is good practice to avoid running the cable over sharp edges and to
periodically clean it with a soft clean cloth. Be sure to keep the protective cap on the
connector whenever the probe is not in use and avoid dropping or banging the cable end.
Always keep the connectors and threads clean by rinsing them with water and be sure to
lubricate frequently. Exercise care when connecting and removing the cable from the probe;
make sure to only turn the connector ring, not the entire cable.
