TE Connectivity 85 1N Series User Manual

Wireless vibration sensor

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85X1N SERIES
WIRELESS VIBRATION SENSOR
USER MANUAL
Doc# 20023687-27
Revision 0.1

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Summary of Contents for TE Connectivity 85 1N Series

  • Page 1 85X1N SERIES WIRELESS VIBRATION SENSOR USER MANUAL Doc# 20023687-27 Revision 0.1...
  • Page 2 85X1N WIRELESS ACCELEROMETER USER MANUAL REVISIONS DATE Revision Change Description Prepared by Approver 11/02/2022 Rev 0.1 Initial draft NEW Version 20023687-27 Rev. 0.1, 2022-11-02...
  • Page 3: Table Of Contents

    85X1N WIRELESS ACCELEROMETER USER MANUAL Contents Introduction ............................3 General Description ..........................4 Advertisement Mode ........................4 3.1.1 At power on .......................... 4 3.1.2 1 hours after power on ......................4 3.1.3 Special event ......................... 5 Connected Mode .......................... 5 MODES OF OPERATION .........................
  • Page 4: General Description

    85X1N WIRELESS ACCELEROMETER USER MANUAL TE Connectivity’s 85X1N Series Wireless Vibration Sensors encompass model families 8511N and 8531N. These sensors combine a 1-axis (8511N) or 3-axis (8531N) accelerometer respectively, a data collector, and a radio into one compact unit. The sensors are battery-operated device that measures both vibration and temperature data.
  • Page 5: Special Event

    85X1N WIRELESS ACCELEROMETER USER MANUAL multiple chances to the gateway to connect to the device. After 15 seconds, the device will advertise at 10s interval till the next measurement. During, this phase, the connection could be more difficult. This “10 seconds” advertisement can be deactivated by user (see Advertising configuration: Measure Trig) Between two measurements, the data into the advertisement frames is the same.
  • Page 6: Modes Of Operation

    85X1N WIRELESS ACCELEROMETER USER MANUAL Mode used during FW update. OTA update Mode used by manufacturing. It allows sensor calibration and offer dedicated test-mode Factory Factory entry functionalities for RF testing, calibration, and current consumption measurements. 3.3 MODES OF OPERATION The device operation can be summarized by the following state machine diagram.
  • Page 7: Data Processing

    85X1N WIRELESS ACCELEROMETER USER MANUAL Sensor measurements are performed and transmitted at a configurable interval from 1 min up to 24 hours. This is driven by the Measurement interval parameter. Upon wake-up, the device powers the sensing element and waits for about 3 seconds to let the accelerometer boot and stabilize its output.
  • Page 8 85X1N WIRELESS ACCELEROMETER USER MANUAL Acceleration data is collected at a chosen sampling frequency. Raw data passes through an anti-aliasing filter. Once a set of acceleration readings is measured (4096 points), the embedded algorithm removes the DC signal (to remove the bias voltage of the sensing element) and multiplies the results by the sensor element calibration sensitivity (mV/g).
  • Page 9: Bluetooth Low Energy

    85X1N WIRELESS ACCELEROMETER USER MANUAL By default, no windows have been established or configured. The peak search covers the full spectrum. Typical FFT spectrum showing the highest eight peaks. It is possible to program up to 8 custom windows to define several regions of interest. Any peak ouside the windows will be ignored.
  • Page 10: Dfu Mode

    85X1N WIRELESS ACCELEROMETER USER MANUAL The device includes a Bluetooth 5.0 Low Energy compliant interface. This is a low power communication technology which should be used at short distances. It makes the 85X1N a connectable beacon which acts as a peripheral by default and switches to a server role (pairing mode) once a remote device (central) is connected.
  • Page 11: Magnetic Switch

    85X1N WIRELESS ACCELEROMETER USER MANUAL The DFU works with a single bank only. This means that if the firmware update is interrupted (power cut off or BLE disconnection), the application firmware will be corrupted, and the sensor will stay in DFU mode. The user will have to re-try the upgrading process. Note that the DFU MAC address is the sensor MAC address +1.
  • Page 12 85X1N WIRELESS ACCELEROMETER USER MANUAL LED indicator 20023687-27 Rev. 0.1, 2022-11-02...
  • Page 13: Led Indicator

    85X1N WIRELESS ACCELEROMETER USER MANUAL 6 LED Indicator The orange LED indicates the state of the 85X1N. Led Behavior Battery insertion during 2s Magnet event during 200ms <3s Slow blinking [3s-10s] Fast blinking Maintaining Magnet >10s -> reboot 7 Battery 7.1 BATTERY TYPE To meet various certification requirements, the following battery must be used: Parameters...
  • Page 14: Battery Estimation Algorithm

    85X1N WIRELESS ACCELEROMETER USER MANUAL 7.4 BATTERY ESTIMATION ALGORITHM 20023687-27 Rev. 0.1, 2022-11-02...
  • Page 15: Current Consumption Profiles

    85X1N WIRELESS ACCELEROMETER USER MANUAL 7.5 CURRENT CONSUMPTION PROFILES 20023687-27 Rev. 0.1, 2022-11-02...
  • Page 16: Dimensions

    85X1N WIRELESS ACCELEROMETER USER MANUAL 8 Dimensions 9 Mounting Considerations & Accessories A solid mounting method is required to get optimum performance from the accelerometer. Any loose parts or unsecured mounting features will introduce noise and corrupt the signals of interest.
  • Page 17 85X1N WIRELESS ACCELEROMETER USER MANUAL For the adhesive mounting stud, secure with a rigid adhesive such as epoxy or cyanoacrylate. Do not use pressure sensitive adhesives or foam tapes. For the magnetic mounting stud, remove the keeper prior to attachment. The magnetic mounting will have a 30 lb pull strength when attached to a ferrous surface.
  • Page 18: Intrinsic Safety

    This Radio Equipment is Certified for FCC (US) and ISED (Canada). This equipment does not support simultaneous transmissions. Changes or modifications not expressly approved or authorized by TE Connectivity for compliance could void the user's authority to operate the equipment.
  • Page 19 85X1N WIRELESS ACCELEROMETER USER MANUAL ▪ Increase the separation between the equipment and the receiver ▪ Connect the equipment to an outlet on a circuit that is different from that to which the receiver is connected. ▪ Consult the dealer or an experienced radio/TV technician for help. Industry Canada (IC) Warning: This device complies with ISED Canada licence-exempt RSS standard(s).
  • Page 20 EU Conformity The products below were tested by approved agencies and found compliant with EU regulatory standards. Model Families: 8511N & 8531N Product Description: Wireless Vibration Sensor Manufacture/Brand: TE Connectivity Ltd Manufacturer: Measurement Specialties (China) LTD No 26 LangShan Road...
  • Page 21: Ordering Information

    85X1N WIRELESS ACCELEROMETER USER MANUAL 12 Ordering Information Model Number: 1 N - Sensor Axis Uniaxial Triaxial Certification None Explosive Atmospheres: ATEX/IECEx/US/CANADA IS CL I, DIV 1, GRP A, B, C, D, T4; CL 1. ZN 0, AEx ia IICT4 Ga; II 1 G, Exia IIC T4 Ga;...
  • Page 22 85X1N WIRELESS ACCELEROMETER USER MANUAL 20023687-27 Rev. 0.1, 2022-11-02...

This manual is also suitable for:

8511n8531n

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