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AX-3D
AX-3D
Description
Available in two versions (measurement range: ±2g or ±10g), the BeanDevice® 2.4GHz AX-3D is a wireless vibration sensor with built-in data logger.
Characterised by a waterproof (IP67/Nema 6) and a lightweight aluminium casing (80x55x21mm, 155g), an ultra-low power, a very low noise (45 µg/√Hz for ±2g version), an integrated data logger that can store up to 1 million data logs, this wireless vibration sensor is well suited for acceleration and velocity monitoring.
While the vast majority of wireless sensors are not suitable for harsh industrial environment, the BeanDevice® 2.4GHz AX-3D integrates an innovative antenna diversity design, boosting the radio link quality in environments subject to random and diverse disturbances. Antenna Diversity improves both the quality and reliability of a wireless link by 30%.
The combination of a 5th order anti-aliasing filter (remotely programmable by the user) and a software IIR filter enables a seamless operation on a harsh environment (construction site, structural monitoring). Our outstanding TimeSync® function allows to reach a time-synchronisation of ±2.5ms over the wireless sensor networks. It contributes to enhance user experience about data fusion and modal analysis.
TheBeanScape® 2.4GHz (except Manager and Basic versions), a supervision software dedicated to Beanair® WSN comes with a complete vibration analysis report:
• Real-Time vibration and Velocity display
• Advanced vibration analysis tool: FFT, PPV (Peak Particle Velocity), Velocity
• Automatic FFT (with PPV values) and Velocity reports (meeting the DIN4150-3 standard)
• Alarm generation by email when a trigger is reached
Users looking for a quick and easy integration with a third party software, have choice between ModBus TCP/RTU/ASCII protocol available on our BeanGateway® 2.4GHz or OPC DA available on our BeanScape® 2.4GHz (Premium+ & Cloud versions only).
This BeanDevice® 2.4GHz AX-3D is suitable for the following applications:
• Ground vibration Monitoring on construction site
• Dynamic measurement on rolling stock
• Condition monitoring
• Structural Health Monitoring (SHM)
• Vibration analysis
Product Reference
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BND-AX3D –MRG-RB
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MR – Measurement Range:
– 2: ±2g measurement range
– 10: ±10g measurement range
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Example: BND-AX3D-10G-RB, Wireless Accelerometer with 10g measurement range
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Accelerometer Specifications
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Accelerometer technology
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Accurate and low power MEMS technology
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Sensitivity
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±2g Version : 61 µg/digit
±10g version: 305 µg/digit
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Typical non-linearity
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±0,1% FS
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Analog to Digital converter
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16-bits, SAR architecture (Successive Approximation Register) with temperature compensation
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Sensor frequency response (-3 dB)
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DC to 800 Hz
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Noise spectral density
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±2g Version : 45 µg/√Hz
±10g version: 100 µg/√Hz
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Zero-g Offset Variation from RT over Temp
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±2g Version : ±0.2 mg/°C
±10g version: ±0.1 mg/°C
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Sensitivity Variation from RT over Temp
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±2g Version : ±0.01 %/°C (XY) , ±0.02 %/°C (Z)
±10g version: ±0.01 %/°C
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Offset Ratiometric Error
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±2g Version : 4mg
±10g version: ±0.2% (XY) , ±0.1% (Z)
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Sensitivity Ratiometric Error
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±2g Version : ±1.25 % (X-Y) , ±0.2 % (Z)
±10g Version : ±1.6% (X-Y) , ±0.2 % (Z)
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Cross Axis Sensitivity
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2%
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Anti-aliasing filter
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Butterworth 5th order filter – cut-off frequency : 1 Hz to 2000 Hz remotely programmable (BeanScape®)
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Over-the-air configuration (OTAC) parameters
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Data Acquisition mode
(SPS = sample per second)
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Low Duty Cycle Data Acquisition (LDCDA) Mode: 1s to 24 hour
Alarm & Survey mode: 1s to 24 hour
Streaming Packet Mode
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Sampling Rate (in streaming packet mode)
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Minimum: 1 SPS
Maximum: 3 kSPS per axis (one axis enabled)
1,5 kSPS per axis (2-axis enabled)
1 kSPS per axis (3-axis enabled)
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Alarm Threshold
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±2 high levels alarms & 2 low levels alarms
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Power Mode
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Sleep with Network Listening & Active
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RF Specifications
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Wireless Protocol Stack
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Ultra-Power and license-free 2.4Ghz radio technology (IEEE 802.15.4E)
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WSN Topology
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Point-to-Point / Star
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Data rate
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250 Kbits/s
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RF Characteristics
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ISM 2.4GHz – 16 Channels. Antenna diversity architecture designed by BeanAir®
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TX Power
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+18 dBm
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Receiver Sensitivity
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-104 dBm
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Maximum Radio Range
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650m (Line of Sight) , 30-100m (Non Line of Sight)
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Antenna
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Omnidirectional radome antenna with antenna diversity
Gain : 3 dBi
Waterproof IP67
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Embedded Data logger
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Storage Capacity
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up to 1 million data points
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Wireless data downloading
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3 minutes to download the full memory (average time)
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TimeSync function : Clock synchronization over the Wireless Sensor Networks (WSN)
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Clock synchronization accuracy
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±2.5 ms (at 25°C)
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Crystal specifications
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Tolerance ±10ppm, stability ±10ppm
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Environmental and Mechanical
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Casing
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Aluminium & Watertight (IP66) casing
Dimensions in mm (LxWxH): 100x55x21 mm
Weight (battery included) : 155g
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Shocks resistance
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100g during 50 ms
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Operating Temperature
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-20 °C to +65 °C
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Norms & Radio certifications
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• CE Labelling Directive R&TTE (Radio) ETSI EN 300 328
• FCC (North America)
• ARIB STD-T66 Ver 3.6″
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IP|NEMA Rating
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IP67 | Nema 6
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Power supply
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Integrated battery charger
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Integrated Lithium-ion battery charger with high precision battery monitoring :
• Overvoltage Protection, Overcurrent/Short-Circuit Protection,Undervoltage Protection
• Battery Temperature monitoring
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Current consumption @ 3.3V
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• During data acquisition : 20 to 30 mA
• During Radio transmission : 70 mA @ 18 dBm
• During Idle : < 30 uA
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External power supply
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+8V to +28V
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Rechargeable Lithium-Polymer battery
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capacity of 1.25 Ah
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Option(s)
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External Power Supply
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Wall plug-in, Switchmode power Supply 12V @ 1,25A with sealed M8 Plug (IP67/Nema 6)
Ref: M8-PWR-12V
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M8 extension cable for external power supply
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Molded cable with M8-3pins male plug
Material: PVC with shield protection
IP Rating : IP67 | Nema 6
Cable length: 2 meters , Ref: CBL-M8-2M
Cable length : 5 meters, Ref: CBL-M8-5M
Cable length: 10 meters, Ref: CBL-M8-10M
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Calibration certificate
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Calibration certificate provided by Beanair GmbH
A static calibration method is used on a granite surface plate DIN876
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To download the datasheet click here