BW SENSING LoRaWAN LR-WS2000 User manual

LoRaWAN LR-WS2000
High-precision wireless inclinometer
Technical Manual
V3.0

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
LoRaWAN LR-WS2000
High-precision wireless inclinometer
●Working frequency 868MHz
●Solar charging orexternal special charger
charging
●Support data transparent transmission
●Power output
●Automatic sleep
LoRaWAN LR-WS2000 high-precision wireless inclinometer is designed for
structural health monitoring. It use rechargeable lithium battery, can be used for up to 5 years
on a single charge (In condition of sending data once a day) it can be easily charged, with solar
panel. With remote control and management functions, data can enter the cloud through the
LoRaWAN gateway (optional).
All modules are designed with ultra-low power consumption, the sleep current is lower than 4μA, and
have timed wake-up and motion detective wake-up functions. Working temperature is -25 ℃ ～ +85 ℃.
●Accuracy: 0.001°
●LoRaWAN Wireless network, star network
●Can be used for up to5years once charged
●Resolution 0.0007°
●Dualaxis inclination measurement, range ±30°
●More user-friendly design, more in line with
actual deployment requirements on site
●Small size, light weight, easyinstallation
●Connected to the Internet through a data
LoRaWAN gateway,and data is transmitted to the
cloud
●Wireless signal interference monitoring
●Temperature output
●Timed wakeup, exercise wakeup
Note: * means under laboratory conditions
Introduction
Main Feature
Function Feature

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
Connector Aviation connector
Protection level IP67
Shell material Magnesium aluminum alloy anodizing
Installation Three M4 screws
Performance Index
Mechanical Index
Application
●
Dangerous housing monitoring
●
Bridge tower inclination measurement
●Dam monitoring
●
Slope disaster prevention
●
Ancient building protection monitoring
●Tunnel monitoring
●
Foundation pit monitoring
●
Tower tilt monitoring
Product Feature
Measuring range(°)
Measuring axis
Accuracy(°)
Resolution(°)
Cross-axis error(°)
Output frequency（Hz）
Auto-sleep mode
Mean Time Between Failure
Electromagnetic
compatibility
Insulation resistance
Impact-resistant
Size（mm）
Accordance to GBT17626
≥100 MΩ
2000g，0.5ms，3 Times/axis
L109*W65*H53
640（±10）
≥90000 hours
Completely stationary
25℃
Up to 50
Support
Timed Wake-up
Movement Detected Wake-up
Support
Support
Weight（g）
Zero temperature
drift(°/℃)
At room temperature
-40〜+85℃
0~30
X-Y
0.001
0.0007
0.001
±0.0007
LoRaWAN LR-WS2000
High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
Electrical Index
Power connector
Power voltage 4.2VDC
Recharging current 1000mA
Working current 100mA (Peak)
Stand-by current 4μA
Battery capacity 6000mAH
Communication distance Maximum: 5Km
Limited Data Every frame 20Byte
Reliability
The mean time between failures (MTBF) is not less than
50,000 hours
Ultra-low power consumption design, including automatic
sleep mode, timing wake-up, sports wake-up
Network topology
Resolution: The smallest change value of the measured value that the sensor can detect and
distinguish within the measurement range.
Accuracy: The root mean square error of the actual angle and the sensor measuring angle for
multiple (≥16 times) measurements.
LoRaWAN gateway
LoRaWAN gateway
LoRaWAN gateway
LoRaWAN
LoRaWAN LR-WS2000
High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
Aviation plug wiring definition
Wire color
function
RED BLACK GREEN YELLOW
1345
4.2V GND ground Receive RXD Send TXD
Package product size
Product size：L109*W65*H53（mm），the length and width may be a 1mm error, please refer
to the actual product
Electrical Interface
LoRaWAN LR-WS2000
High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
Installation
This series of products can only be installed vertically (pendulum type measurement), not
horizontally. The correct installation method can avoid measurement errors. The following points
should be done when installing the sensor:
First of all, make sure that the sensor mounting surface is completely close to the measured
surface, and the measured surface should be as level as possible, and there should be no included
angles as shown in Figure A and Figure C. The correct installation method is shown in Figure B
and Figure D.
Secondly, the bottom line of the sensor and the axis of the measured object cannot have an
angle as shown in Figure E, and the bottom line of the sensor should be kept parallel or orthogonal
to the axis of rotation of the measured object during installation. This product can be installed
horizontally or vertically (vertical installation needs to be customized), and the correct
installation method is shown in Figure F.
Finally, the mounting surface of the sensor and the surface to be measured must be
tightly fixed, smooth in contact, and stable in rotation, and measurement errors due to
acceleration and vibration must be avoided.
the measured surface
uneven surface
generates the
angle
the measured surface
C D
AB
the measured surface the measured surface
uneven surface
generates the
angle
LoRaWAN LR-WS2000
High-precision wireless inclinometer

Bewis Sensing Technology LLC www.bwsensing.com Tel：[phone]
●Enterprise Quality System Standard: ISO9001:2015 Standard (Certificate
No.064-21-Q-3290-RO-S)
●CE certification (certificate number: M.2019.103. U Y1151)
●ROHS (certificate Number: G 190930099)
●GB/T 191 SJ 20873-2003 General specification for inclinometer and level
●GBT 18459-2001 The calculation method of the main static performance index of the
sensor
●JJF 1059.1-2012 Evaluation and expression of measurement uncertainty
●GBT 14412-2005 Mechanical vibration and shock Mechanical installation of accelerometer
●GJB 450A-2004 General requirements for equipment reliability
●GJB 909A Quality control of key parts and important parts
●GJB899 Reliability appraisal and acceptance test
●GJB150-3A High temperature test
●GJB150-4A Low temperature test
●GJB150-8A Rain test
●GJB150-12A Sand and dust experiment
●GJB150-16A Vibration test
●GJB150-18A Impact test
●GJB150-23A Tilt and rock test
●GB/T 17626-3A Radio frequency electromagnetic field radiation immunity test
●GB/T 17626-5A Surge (impact) immunity test
●GB/T 17626-8A Power frequency magnetic field immunity test
●GB/T 17626-11A Immunity to voltage dips, short-term interruptions and voltage changes
●GB/T 2423.22-2012 Environmental Test Part 2: Test Method Test N: Temperature Change
(IEC 60068-2-14:2009, IDT)
●GB/T 10125-2012 Artificial atmosphere corrosion test Salt spray test (ISO 9227:2006,IDT)
Executive standard
LoRaWAN LR-WS2000
High-precision wireless inclinometer

Wuxi Bewis Sensing Technology LLC
Add：Building 30, NO. 58, Xiuxi Road, Binhu District,
Wuxi City, Jiangsu Province, China
Tel：[phone]
Mail：[email protected]
Web：www.bwsensing.com
LoRaWAN LR-WS2000
High-precision wireless inclinometer