FCC ID: 2AY22-VTD01 ZETA Edge-AI Vibration Sensor

Edge-AI Vibration Sensor Edge-AI Vibration Sensor 1 Edge-AI Vibration Sensor Copyright Statement ZiFiSense owns the copyright on this specification. No part of this specification may be reproduced in any form or means, without the prior written consent of ZiFiSense. Disclaimer This specification is preliminary and is subject to change at any time without prior notice. ZiFiSense assumes no responsibility for any errors contained herein. ZiFiSense is not responsible for any patent infringement of third party on its use or as a result of its uses. Other products/services not certified by the patent license, shall be deemed within patent ownership of ZiFiSense. 2 Edge-AI Vibration Sensor Table of Contents 1. Product Description 2. Product Specification 3. Installation 4. Sensor function

........................................................................................ ..................................................................................... ...................................................................................................... ............................................................................................... .................................................. ........................................................... ................................................................................................... ..................................................................................... 4.1. Machine operating status detection 4.2. Characteristic value reporting 5. Use of Device 5.1. Steps for usage 5.2. Setting detection cycle 5.3. Setting diagnostic parameters 5.4. Query function 5.5. Query device status 5.6. Power button and status indicator

....................................................................... ......................................................... ................................................................................... ........................................................................... ................................................. ........................................................................ ...................................................................... 6. Sensor detection flow chart 7. Common faults and handling 4 5 6 7 7 7 8 8 10 10 11 12 13 14 14 3 1. Product Description Edge-AI Vibration Sensor Edge-AI vibration intelligent is a plug-and-play, wirelessly terminal deployed vibration monitoring product for general rotating equipment. It has high-performance of vibration performance testing and fault diagnosis functions, and is especially suitable for replacing equipment inspection work and equipment status measurement , Recording and tracking, for providing basic data support and insightful decision support equipment and maintenance. condition monitoring intelligent operation and Covering general rotating equipment application scenarios: motors, bearings, pumps, fans, air compressors, gear boxes... Supports multiple installation methods, plug and play, and rapid deployment ZETA network wireless transmission and deployment, low cost, wide coverage, stable connection, and localized deployment Low-power design, battery life of about 3 years (default configuration) Integrated high-frequency response single-axis MEMS acceleration sensor, 3 to 6 months in advance to find fault signs Built-in signal processing algorithms such as FFT and envelope analysis, and return a variety of time and frequency domain vibration characteristic parameters Built-in Near-Sensor Computing (near sensor computing) AI algorithm, end-side directly output diagnosis conclusions, without the need for edge gateways and Web platform and mobile client APP support, view data and track device status anytime, background manual analysis anywhere 4 Edge-AI Vibration Sensor 2. Product Specification Hardware Specification Frequency response Single axis 0Hz-10kHz (1dB point) Sampling frequency Frequency resolution 25.6kHz (configurable) g 1/1.28 Hz Measuring range 33 Working temperature

-30~85 Ingress level Mounting Size Weight IP66 Magnetic, adhesive, M5 stud 50*50*87mm

~400g (With battery) Battery capacity Wireless Specification Battery life 9600mAh (Replaceable)

~3 years (default setting) Wireless Protocol ZETA P Frequency band 920~925MHz Gateway coverage Functional Specification Antenna type 2~15km PCB Antenna Index value report Operating status, vibration velocity rms (10Hz~1kHz), vibration acceleration rms

(10Hz~10kHz), low frequency rms (10Hz~500Hz), high frequency rms

(500Hz~5kHz), maximum acceleration, minimum acceleration, peak-to-peak, effective, Kurtosis, skewness, crest factor, pulse factor, margin factor, form factor, surface temperature Initialization Acquire the waveform and spectrum characteristics of the device during normal operation, and activate the fault diagnosis function after initialization Fault diagnosis Imbalance, misalignment, looseness, bearing failure

(inner ring, outer ring, ball damage), gear failure (pitting, wear, broken teeth, gear bearing failure) 5 3. Installation Edge-AI Vibration Sensor The sensor supports three installation methods: magnet, glue, M8 stud Installation Precautions:

1. The sensor should be installed as close to the bearing as possible, or other location that can effectively reflect the vibration of the equipment. 2. Different sensor installation methods have different effects on the frequency response curve. See the figure below for details:

(The picture is taken from the Internet, if there is any infringement, please contact us) Note: Mechanical equipment is usually well insulated. If the mechanical equipment is poorly insulated, it will affect the signal detected by the sensor. At this point, the sensor can be insulated from the mechanical equipment by pasting insulating tape or insulating glue before installing the sensor. 6 Edge-AI Vibration Sensor 4. Sensor function 4.1. Machine operating status detection Start & Stop detection Bearing failure: inner ring, outer ring, rolling element Rotor failure: misalignment, unbalance Gear failure Looseness 4.2. Characteristic value reporting Velocity RMS (10Hz~1kHz), unit mm/s Acceleration RMS (10Hz~10kHz), unit m/s2 Low frequency rms (10Hz~500Hz), unit m/s2 High frequency rms (500Hz~5kHz), unit m/s2 Maximum value, unit m/s2 Minimum value, unit m/s2 Peak-to-peak value, unit m/s2 Effective value, unit m/s2 Kurtosis, unit 1 Skewness, unit 1 Crest factor, unit 1 Pulse factor, unit 1 Margin factor, unit 1 Form factor, unit 1 Surface temperature of measuring point, unit 7 Edge-AI Vibration Sensor 5. Use of Device 5.1. Steps for usage 1) The installation environment is well covered by ZETA network in advance, so that the equipment can enter the network smoothly afterwards;

2) Before powering on the device, first add the device to the FM Platform, as shown in the figure:

3) Power on the equipment and wait for the equipment to go online, and at the same time install the equipment to the selected installation point of the rotating machinery to be tested;

4) After the device is online, you need to enable the required functions

(default is off), such as bearing, rotor, gear fault detection, etc.;

5) Diagnostic parameter settings. For different mechanical equipment, different parameter information needs to be set according to the conditions of the mechanical equipment. For the setting guidelines, please refer to Chapter 3.3. 8 Edge-AI Vibration Sensor 6) The sensor needs to be initialized the first time it is used. Please turn on the mechanical equipment and wait for it to warm up. After confirming that the machine is running in a stable state, issue the "start command through the platform command. The initialization"

initialization process usually takes 1-3 minutes. After the initialization is successful, you can view it from the uplink data return status 9 Edge-AI Vibration Sensor 5.2. Setting detection cycle Through the FM platform, the sensor detection cycle can be set, as shown below:

Note: The detection cycle is related to the battery life. The more frequent the detection cycle, the faster the battery consumption and the shorter the service life. 5.3. Setting diagnostic parameters Among them, the following parameters need to be set according to the models of different rotating machinery and equipment

1 in according to the actual parameters of the Rotation speed: fill mechanical equipment installed, range: 1-6000 rpm Inner ring failure frequency coefficient: Query according to the bearing model of mechanical equipment, and fill in the corresponding coefficient value Outer ring failure frequency coefficient: Query according to the mechanical equipment bearing model, and fill in the corresponding coefficient value Frequency coefficient of rolling element failure: Query according to the bearing model of mechanical equipment, and fill in the corresponding coefficient value 1 The failure coefficient of the inner ring, outer ring and rolling bar can be queried in the database through the bearing model. If you need help with database query, please contact us 10 Edge-AI Vibration Sensor Other parameter settings have been set to default values:

Sampling rate: default value: 25600, unit hz Shutdown threshold: default value: 30, unit 0.01 Low frequency anomaly threshold: Default value: 130, unit 0.01 High frequency anomaly threshold: Default value: 120, unit 0.01 Unbalance threshold 1: Default value: 162, unit 0.01 Unbalance threshold 2: Default value: 190, unit 0.01 Looseness threshold: Default value: 400, unit 0.01 Misalignment fault threshold: default value: 140, unit 0.01 Gear failure threshold: Default value: 150, unit 0.01 5.4. Query function Through platform commands, the device parameter setting information can be queried:

Query detection cycle Query enable switch Query detection parameter Query software version 11 Edge-AI Vibration Sensor 5.5. Query device status Proactively initiate a diagnosis of mechanical equipment through platform 2 instructions without waiting for the diagnosis cycle. 2 The query delay is related to the ZETA protocol. If it is in real-time downlink mode, it can be inquired in real time. If it is in ACK downlink mode, it needs to wait for the uplink cycle. 12 Edge-AI Vibration Sensor 5.6. Power button and status indicator Plug in the battery, the default power is on Power button Long press for 5 seconds to turn off the power Long press for 3 seconds to turn on the power or long sleep, the light is off. When the device is successfully registered Every 500ms, it lights for 2ms and lasts for 5s. During normal work 2ms on every 1 minute Module registration Indicator light It will be on for 2ms every 2s until the registration is successful and the device enters sleep 13 6. Sensor detection flow chart Edge-AI Vibration Sensor 7. Common faults and handling Ensure ZETA signal coverage Ensure that the device is powered on, and the ZETA network device management platform can observe that the ZETA module is on line Check the battery usage of the device. When the battery is low, replace the battery in time. 14 FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. This device complies with FCC PART15 Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Edge-AI Vibration Sensor 15

Xiamen ZiFiSense InfoTech Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-03-03 Subject: Request for Confidentiality FCC ID: 2AY22-VTD01 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Long-Term Confidentiality Short-Term Confidentiality NOTE 2 Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info No No No No No No No No No No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Paul Li Title: Manager 1/1

Xiamen ZiFiSense InfoTech Co., Ltd Letter of Authorization Company: Xiamen ZiFiSense InfoTech Co., Ltd Address: Room 803, Building A-05, Software Park Phase III, Jimei District, Xiamen, China Product Name: ZETA Edge-AI Vibration Sensor Model Number: ZAIoT-VTD01 FCC Identifier: 2AY22-VTD01 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Date: 2021-03-03 Name:

Title: Manager Signature of applicant: Paul Li 1/1