WiT WTVB01-BT50 Instruction Manual

Vibration sensor

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WTVB01-BT50 Vibration sensor instruction manual
Product specification:
Type number: WTVB01-BT50
Description: Bluetooth 5.0 vibration sensor
1. Product overview
1, module internal voltage stability circuit, internal equipped with lithium battery,
3.7V power supply, easy connection.
2, the use of advanced digital filtering technology, can effectively reduce the
measurement noise, improve the measurement accuracy.
3. At the same time, provide various kinds of upper computer, use instructions,
development manuals required by users, so that the research and development time
for various needs is reduced to the minimum.
4, Support Type-C interface, convenient for users to choose the best connection mode.
Serial port rate 115200bps.
5. The cut-off frequency is adjustable from 0 to 100Hz, and the detection cycle is
adjustable from 1 to 100Hz.
6, three axis displacement, three axis speed, three axis Angle, three axis frequency
output, to meet the user's vibration and impact comprehensive measurement, judge
whether the measured object (motor water pump) is damaged. If there is a machine
fault caused by bearing wear, bearing cracking, poor dynamic balance and moderate
factors, vibration sensor can detect the fault in advance and put forward an early
warning, to prevent the machine from continuing to work in bad condition and causing
damage, thus bringing economic losses.
7, application field: can be widely used in submersible pump, fan, turbine unit,
coal mill, system. The bearing vibration measurement and real-time monitoring of
oxygen machine, generator, centrifuge, compressor, water pump, motor and other
rotating machinery.
2.
Parameter indicators
Basic parameter
parameter
condition
Minimum value
default
Maximum value
Communication
UART
115200bps
115200bps
115200bps
interfac

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Summary of Contents for WiT WTVB01-BT50

  • Page 1 WTVB01-BT50 Vibration sensor instruction manual Product specification: Type number: WTVB01-BT50 Description: Bluetooth 5.0 vibration sensor 1. Product overview 1, module internal voltage stability circuit, internal equipped with lithium battery, 3.7V power supply, easy connection. 2, the use of advanced digital filtering technology, can effectively reduce the measurement noise, improve the measurement accuracy.
  • Page 2: Electrical Parameter

    3 axis vibration velocity, 3 axis vibration Angle, 3 axis vibration displacement, 3 axis vibration frequency, Output content temperature Vibration speed: 0~50mm/s range Vibration Angle: 0~180° Vibration displacement: 0~30000um Detection cycle 100Hz 100Hz Cut-off 10Hz 100Hz frequency Startup time 1000ms Bluetooth Cascade multi-link...
  • Page 3 8 hours Charging time 2 hours 3 hours Software usage method 3.1 Connecting to an App https://wit-motion.yuque.com/wumwnr/bf4d0f/bgclg0g6g1nm3qk7?singleDoc# 3.2 Connecting the Host Computer Download from upper computer: https://wit-motion.cn/#/witmotion/literature/download?id=1526108478018232321 First, automatic search: 1. Search for the sensor model. 2. Click Search Device and select Bluetooth device WTVB01_BT50.
  • Page 4 Two, manual connection Type_C data cable to connect computer 1. Select the device name. 2. Select the serial port number. 3. Set baud rate to 115200, 4. Click Add. 3.3 Curve Chart...
  • Page 5: Configure The Software

    Click on the graph, there are curves of vibration velocity, vibration Angle, vibration displacement and temperature (normal mode); In high-speed mode, only the vibration displacement curve has data, as shown in the figure below: 3.4 Scatter diagram In order to obtain the complete vibration displacement scatter diagram, it is recommended to use the high-speed mode to view 4.
  • Page 6: Cut-Off Frequency

    Click "Configuration", and click "Restore Settings" in the sensor configuration interface to restore factory Settings, as shown in the picture below: 4.2 Restart Click "Configure", and click "Restart" in the sensor configuration interface to restart the sensor, as shown in the figure below: 4.3 Cut-off frequency Open "Configuration", click the drop-down menu of "Cutoff frequency"...
  • Page 7 used in this way (excitation with amplitude sinusoidal signal, constantly changing the frequency, the corresponding frequency when the output amplitude decreases to 0.707 times of the input is the cutoff frequency. The output amplitude is greater than or equal to 0.707 times the frequency range of the input amplitude, that is, the working frequency range.
  • Page 8: Recording Data

    4.5 Recording Data Open "Record" and click "Start Record" to record the output data of the sensor. Step 5: Register 5.1 Register address table address symbol meaning...
  • Page 9 Save, restart, or restore to factory 0x00 SAVE defaults 0x03 RRATE Return rate 0x1A IICADDR Device address 0x3A X axis vibration velocity 0x3B Y-axis vibration velocity 0x3C Z axis vibration velocity 0x3D X axis Angle vibration Angle 0x3E Y axis Angle vibration Angle 0x3F Z axis Angle vibration Angle 0x40...
  • Page 10 Z axis vibration displacement (high 0x49 FDNFZ speed mode) 0x5d CUTOFFFREQI Cutoff frequency integer 0x5e CUTOFFFREQF Cutoff frequency decimal 0x5f SAMPLEFREQ Detection cycle 0x64 BatPer Electric quantity 5.2 Module Uppermost computer By default, the module will upload the data of Flag=0x61(vibration speed, vibration Angle, temperature, vibration displacement and vibration frequency), totaling 28 bytes.
  • Page 11 Z-axis vibration speed is 8 bits higher ADXL The vibration Angle of X axis is 8 digits lower ADXH X axis vibration Angle is 8 bits higher ADYL Y-axis vibration Angle is 8 bits lower ADYH Y-axis vibration Angle is 8 bits higher ADZL Z-axis vibration Angle is 8 bits lower ADZH...
  • Page 12 Default value:0x0000 NAME FUNCTION 15:0 VX[15:0] Vibration velocity VX(mm/S)=((VXH << 8)| VXL) 15:0 VY[15:0] Vibration velocity VY(mm/S) =((VYH << 8)| VYL) 15:0 VZ[15:0] Vibration velocity VZ(mm/S) =((VZH << 8)| VZL) Example:55 61 11 00 16 00 02 00 02 00 00 00 01 00 E6 0A 43 00 47 00 0A 00 25 00 25 00 25 00 VXL: 0x11 VXH: 0x00 VYL: 0x16 VYH: 0x00 VZL: 0x02 VZH: 0x00 Vibration velocity VX(mm/s)=(((short)VXH <<...
  • Page 13 NAME FUNCTION 15:0 TEMP[15:0] Temperature=TEMP[15:0]/100℃ Example:55 61 11 00 16 00 02 00 02 00 00 00 01 00 E6 0A 43 00 47 00 0A 00 25 00 25 00 25 00 TEMPL:0xE6 TEMPH:0x0A TEMP[15:0] =(((short)TEMPH <<8)|TEMPL)/100 = 0x0AE6 /100= 2790/100 = 27.90(℃) Vibration displacement calculation method: Unit (um) Register name: DX~DZ Register address: 65~67 (0x41~0x43)
  • Page 14 Example:55 61 11 00 16 00 02 00 02 00 00 00 01 00 E6 0A 43 00 47 00 0A 00 25 00 25 00 25 00 HZX[15:0]=(((short)HZXH <<8)|HZXL) = 0x0025 = 37(Hz) HZY[15:0]=(((short)HZYH <<8)|HZYL) = 0x0025 = 37(Hz) HZZ[15:0]=(((short)HZZH <<8)|HZZL) = 0x0025 = 37(Hz) 5.3 Host computer to module Read register packet...
  • Page 15: Register Description

    Set instruction FF AA 00 SAVE 00 Save, restart, or restore to factory defaults FF AA 03 RATE 00 Set the return transmission rate FF AA 5D CUTOFFFREQI 00 Cut-off frequency integer part (0~100) FF AA 5E CUTOFFFREQF 00 Cutoff frequency fractional part (0~99) FF AA 5F SAMPLEFREQ 00 Detection cycle (1~100Hz) Register description...
  • Page 16 0x08:50Hz 0x09:100Hz 0x0A:200Hz Example: FF AA 69 88 B5 (Useful for unlocking within 10S) FF AA 03 06 00 (Set the return rate to 10Hz) FF AA 00 00 00 (Save) CUTOFFFREQI, CUTOFFFREQF (cutoff frequency) Register name: CUTOFFFREQI (integer 0~100) Register address: 93(0x5d) Read/write direction: R/W Default value: 0x000A...
  • Page 17 Example: Set the cut-off frequency to 10.99Hz Send: FF AA 69 88 B5 (useful for unlocking within 10S) FF AA 5D 0A 00 (Set the integer part of the cutoff frequency to 10) FF AA 5E 63 00 (Set cut-off frequency to 99 for decimal part) FF AA 00 00 00 (Save)CUTOFFFREQI and CUTOFFFREQF registers are required for cutofffreqf cut-off frequency setting Cutoff frequency decimal part description: Set the small value X100 (set.99, actually need to...

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