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Summary of Contents for BW SENSING BWM826
- Page 1 BWM826 igital Dual-Axis Inclinometer Technical Manual...
- Page 2 Digital Dual-Axis Inclinometer Introduction Designed by Bewis Sensing Technology LLC, BWM826 is a cost-effective dual-axis inclinometer with MEMS technology and digital output. It has a measuring range of ± 30° and a full-scale accuracy of 0.005° and a operating temperature of -40℃~+85℃. The product uses a high-accuracy MEMS accelerometer and a high- resolution differential digital-to-analog converter with built-in automatic compensation and filtering algorithms to reduce errors caused by environmental changes.
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Page 3: Specifications
Digital Dual-Axis Inclinometer Specifications Electrical Specifications Units Conditions Typical Parameters Power supply Non-loaded Operating current ℃ Operating temperature Store temperature ℃ +100 Performance Specifications BWM826-5 BWM826-15 BWM826-30 Parameters Conditions Units ±15 ±30 ° Measuring range ±5 Measuring axis Indoor 0.008 0.01 °... - Page 4 BWM 826 Digital Dual-Axis Inclinometer Mechanical Characteristic Metal connector（standard cable is 1.5m） Connector Protection level IP67 Magnesium alloy anodizing Shell material Installation Four M4 screws Package size Product Size: L90*W40.5*H26(mm) 4.5 hole Bare plate product size Product size: L47*W36*H15(mm) Note: ±1mm error for length and width dimensions, please refer to actual size. Hole Φ...
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Page 5: Installation Direction
BWM 826 Digital Dual-Axis Inclinometer Installation direction The correct installation method can avoid measurement error. The following points should be made when installing the sensor: First of all, to ensure that the sensor mounting surface and the measured surface completely close, the measured surface should be as horizontal as possible, can not have the angle shown in Figure A and Figure C, the correct installation is shown in Figure B and Figure D. -
Page 6: Electrical Connections
BWM 826 Digital Dual-Axis Inclinometer Electrical connections RS232 Electrical interfaces YELLOW BLUE BLACK GREEN Cable color & Function DC 9-35V POWER 9~35V POWER+ RED DC 9-35V POWER- YELLOW: TXD GREEN: RXD BLACK: GND Sensor RS 485 Electrical interfaces BLUE BLACK GREEN YELLOW Cable color... - Page 7 Users can directly download serial assistant on official website (Supports-Download). You can also use more convenient and intuitive PC software. BWM826 supporting serial debugging software can be connected to the inclinometer on the computer for angle display. The software debugging interface is as shown in the figure below. Using the debug software, it can conveniently display the current X-direction tilt angle, and you can also modify and set other parameters by yourself.
- Page 8 BWM 826 Digital Dual-Axis Inclinometer Protocol 1Data Frame Format： （8 data bits，1 stop bit，No parity check，default baud rate 9600） Identifier Frame Length Address Code Command Checksum Data （1byte） （2byte） （1byte） （1byte） （1byte） (nbyte) 0x77 Data Format: Hexadecimal Identifier: Fixed to 77 Frame Length: Length from Frame Length to Checksum（included）...
- Page 9 BWM 826 Digital Dual-Axis Inclinometer 2.3 Read angle of X,Y axis Command：77 05 00 00 04 09 Identifier Frame Length Address Code Command Data Checksum （1byte） （1byte） （2byte） （1byte） （0byte） （1byte） 0x77 0x04 Command response： Identifier Data Frame Length Address Code Command Checksum （1byte）...
- Page 10 BWM 826 Digital Dual-Axis Inclinometer 2.6 Save setting Command：77 05 00 00 0A 0F Identifier Data Address Code Frame Length Command Checksum （1byte） （2byte） （1byte） （1byte） （1byte） （1byte） 0x77 0x0A Command response： Identifier Frame Length Data Address Code Checksum Command （1byte）...
- Page 11 BWM 826 Digital Dual-Axis Inclinometer 2.9 Set address Command: 77 05 00 0F 01 17 Identifier Address Code Data Frame Length Command Checksum （1byte） （2byte） （1byte） （2byte） （1byte） （1byte） xxxx YYYY 0x77 0x07 0x0F Command response： Checksum Identifier Data Frame Length Command Address Code （1byte）...
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Page 12: Ordering Information
BWM 826 Digital Dual-Axis Inclinometer Ordering Information Package condition Product number Way of communication BWM826-30-232 IP67 Package/Metal Connector RS232 BWM826-30-485 IP67 Package/Metal Connector RS 485 BWM826-30-TTL IP67 Package/Metal Connector Executive standard ● Enterprise Quality System Standard: ISO9001:2008 Standard (Certificate No.:10114Q16846ROS) ●... - Page 13 BWM826 Digital Dual-Axis Inclinometer Wuxi Bewis Sensing Technology LLC Address: Building 30, No. 58 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province, China Tel: +86 510 85737178-801 Email: support@bwsensing.com Website: www.bwsensing.com...
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