Loadsensing LS-G6-LASTIL90 Manuel utilisateur
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Table of contents
Important instructions prior to use 2
Device Overview 3
Device Specifications 4
Equipment Provided 6
Wireless Tiltmeter Mounting Brackets 6
Powering up the Device 7
Loadsensing Device Configuration 9
Safely Closing the Device 9
Battery Life Estimates 11
Data storage 12
Calibration 13
Maintenance 14
CONTACT WORLDSENSING 15
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
1
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Important instructions prior to use
Please read these instructions carefully and ensure that the required conditions are met
before using the product.
All our Loadsensing edge devices have the following information on the casing.
Symbol
Description
Caution. Read the instructions carefully and ensure that the
required conditions are met before using the product.
Caution, hot surface.
Ensure proper waste segregation and follow electronic waste
disposal protocols.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
2
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Device Overview
This user guide explains how to configure and operate Worldsensing’s Loadsensing Wireless
Tiltmeter. Further technical descriptions are available in the datasheets.
The Loadsensing Wireless Laser and Tiltmeter is a long-range, low-power wireless data
logger distance meter and inclinometer in a compact box. It measures distance with a
highly precise Leica Laser module and also can measure tilt on three axes perpendicular to
the plane of the base with a precise microelectromechanical systems (MEMS) sensor.
The wireless Laser and Tiltmeter can be used as a standalone logger for manual monitoring
and can be easily configured by connecting it to an Android phone with a USB cable.
It is designed for different applications including monitoring convergences in tunnels, on
civil works, and in underground mining, and also for continuous remote monitoring of
landslides and slope movement, in particular open pits.
Tiltmeters measure changes from vertical on the ground or in structures. This makes them
key sensors for monitoring inclinations, movements and differential settlements in slopes
or infrastructures.
Tiltmeters can be attached to vertical structures, such as columns, piers, pylons, facades
or retaining walls, to track changes in inclination and detect differential settlement; or they
can be installed to verify over time the geometry and stability of tunnels or bridges and the
cant, twist and vertical alignment of railway tracks.
They have also been extensively used in monitoring slope stability in landslide-prone areas,
embankments and mines.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
3
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Device Specifications Tiltmeter
SENSOR
Type:
MEMS inclinometer with internal
offset compensation
Range:
+/-90º
Axes:
Up to 3
Accuracy within +/-5º
+/- 0.006º
Accuracy within (+/-15º)
+/- 0.013º
Resolution
0.0001º
Repeatability LS-G6-TIL90-X
<0.0003º
Repeatability LS-G6-TIL90-I
<0.001º
Offset temperature dependency
LS-G6-TIL90-X (*)
+/-0.002º/ºC
Offset temperature dependency
LS-G6-TIL90-I(*)
+/-0.005º/ºC
Time required for reading
10 secs approximate
(*)Note that temperature dependency can be positive or negative depending on each MEMS sensor manufacturing
process. Temperature dependency is given as the maximum value.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
4
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Device Specifications Laser
SENSOR
Measuring range at
favorable conditions
0.05 - 150 m
Typical measuring
accuracy
+/- 1 mm
Resolution
0.1 mm
Repeatability (1 sigma)
0.15 mm
Laser type (light source)
Visible Laser Class II, Laser with 655 nm
Laser power
0.75-0.95 mW
Accuracy
In favourable conditions*
In unfavourable
conditions**
@1 m
+/- 1 mm
+/- 2 mm
@10 m
+/- 1 mm
+/- 2 mm
@20 m
+/- 1.5 mm
+/- 3 mm
@50 m
+/- 4 mm
+/- 7 mm
@100 m
+/- 9 mm
+/- 15 mm
@150 m
+/- 16 mm
not applicable
Size of the Laser spot
@5 m
5mm x 2.5mm (smallest value)
@10 m
7mm x 3mm
@20 m
14mm x 6mm
@50 m
35mm x 15mm
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
5
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
MEMORY: CIRCULAR BUFFER STRUCTURE
Memory records up to 200,000 readings, including time and 1 sensor
MECHANICAL
Box dimension (WxLxH)
100 x 100 x 61 mm
Overall dimensions
150 x 100 x 61 mm (excluding antenna)
Operating temperature
-10 to +50 ºC
Water ingress protection
IP67
Weight (excluding batteries)
841 g
Antenna
External: 100 mm
length (including
connector)
Mounting options
Clearance holes for M4 hexagon socket head cap screws in bottom.
Blind holes for M4 screws on the side.
USB (configuration/EXT
power)
MiniUSB port for configuration and data access. Can also be used to
power the node
Box material
Aluminium alloy
Lid material
Aluminium alloy
Batteries
Up to 2
Vibration resistance
Laser modules comply with standard ISO 9022-3, Method 36, Severity
05 (0.15mm, 10Hz..55Hz)
*** The wireless tiltmeter is impact resistant but should be treated carefully, like any precision instrument.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
6
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
Equipment Provided
The Worldsensing LS-G6-Laser node is shipped with the following accessories:
●Laser and tiltmeter node
●Antenna
●Antenna adapter
Wireless Laser Mounting Brackets
The Laser node needs to be mounted on a support. Depending on the application, the Laser
node needs to be installed with a certain inclination to achieve curved surfaces and on
others applications it can be just installed aligned to the surface.
Four types of support have been designed in order to cover these applications:
●Fixed mounting for vertical surfaces (LS-ACC-IN15VP-4)
●Fixed mounting for horizontal surfaces (LS-ACC-IN15HP)
●Adjustable mounting plate (LS-ACC-LAS-AP)
●Swivel mounting bracket (LS-ACC-LAS-SB)
●Vertical mounting plate (pole mounting) (LS-ACC-IN15VPP2)
For the first three types of supports (fixed, adjustable, and swivel), supports can be attached to
the Laser node using threaded rods and chemical anchors (bonded anchors) or using
torque-controlled expansion anchors that go into the surface. Three-point mounting is the best
option because it prevents bending and torsion that can lead to unstable readings.
Single-anchor mounting is more prone to drift and disturbance. It is not recommended for
long-term applications.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
7
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
For long-term applications, chemical anchors are preferable because their performance is more
stable and their vibration resistance is higher. Torque-controlled expansion anchors can also be
used, but only if the mounting plate or bracket is drawn tight against the surface and cannot
shift laterally.
We recommend sourcing the chemical anchors locally because they are considered dangerous
goods for air transportation. If you want to install chemical anchors, Worldsensing can supply
the mounting plates with the M4 lock washers and socket screws required to attach the
tiltmeter to the mounting plate. Please contact us with questions or for additional details.
Further information and drawings can be found in the accessory user guides.
Powering up the Device
Loadsensing devices are shipped closed and without batteries. To power up the device:
1. Open the device using a 2.5 mm Allen wrench.
2. Insert C-type batteries in the battery holders, checking they match the polarity
indicated. You can connect one or more batteries; the more you use, the longer the
device will operate in the field. See our LS G6 Datalogger recommended batteries
guide for further information on the batteries.
Please note that the device has reverse battery protection but it is not safe to keep
batteries reversed in the device for a long time.
Note: The Loadsensing Wireless Tiltmeter does not have an real-time clock battery
to keep time, so it is very important for the device to be powered with batteries
when the time is set during installation. Otherwise the device will default to the
year 1970 and data will not appear in the gateway. A warning will appear in the
log’s tab.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
8
User Guide
Loadsensing Wireless Tiltmeter
Version 0.1
3. The device can be powered with batteries or external power. If a power supply of 5
Volts is powering the USB port, the device will be automatically powered by the
5Volts upply
General warnings
●Follow these precautions to avoid a battery explosion or leakage of flammable liquid or gas:
○Use the correct battery type. Dispose of the batteries according to instructions. Do not
dispose of the batteries by throwing them into a fire or a hot oven, or mechanically crush or
cut them.
○Do not leave the batteries in an extremely high-temperature environment.
○Do not subject the batteries to extremely low air pressure. It may result in an explosion or
leakage of flammable liquid or gas.
○Do not short circuit the batteries. This will blow the protection fuse.
●Batteries and equipment to be connected via the data port must meet IEC 62368-1 ES1 and PS1
requirements.
●Equipment to be installed in restricted access areas.
BARCELONA
Viriat 47, Edificio Numancia 1, 10th floor,
08014 Barcelona, Spain
(+34) 93 418 05 85
www.worldsensing.com
9
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