ZiFiSense VTD01 ZETA Edge-AI Vibration Sensor Instruction Manual

: June 6, 2024
: ZiFiSense

Table of Contents

Product Description
Product Specification
Installation
Sensor function
Use of Device
FCC Statement
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VTD01 ZETA Edge-AI Vibration Sensor
Instruction Manual

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 parties 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.

Product Description

Edge-AI vibration intelligent terminal is a plug-and-play, wirelessly 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, providing basic data support and insightful decision support for equipment condition monitoring and intelligent operation and maintenance.

Covering general rotating equipment application scenarios: motors, bearings, pumps, fans, air compressors, gearboxes…
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 background manual analysis
Web platform and mobile client APP support, view data and track device status anytime, anywhere

Product Specification

Hardware Specification

Frequency response| Single axis 0Hz-10kHz (1dB point)
Sampling frequency| 25.6kHz (configurable)
Frequency resolution| 1/1.28 Hz
Measuring range| ±33 g
Working temperature| -30-85 t
Ingress level| 1P66
Mounting| Magnetic, adhesive, MS stud
Size| 505087mm
Weight| —400g (With battery)
Battery capacity| 9600mAh (Replaceable)
Battery life| —3 years (default setting)
Wireless Specification
Wireless Protocol| ZETA P
Frequency band| 920-925MHz
Gateway coverage| 2-15km
Antenna type| PCB Antenna
Functional Specification
Index value report| Operating status, vibration velocity RMS (lOHz—kHz), vibration acceleration rms (lOHz—lOkHz), low-frequency RMS (10Hz-500Hz), high- frequency RMS (500Hz—SkHz), 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)

Installation

The sensor supports three installation methods: magnet, glue, M8 stud Installation Precautions:

The sensor should be installed as close to the bearing as possible, or at other locations that can effectively reflect the vibration of the equipment.
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.

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
The surface temperature of measuring point, unit

Use of Device

5.1. Steps for usage

The installation environment is well covered by the ZETA network in advance so that the equipment can enter the network smoothly afterward;
Before powering on the device, first add the device to the FM Platform, as shown in the figure:
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;
After the device is online, you need to enable the required functions (default is off), such as bearing, rotor, gear fault detection, etc.;
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.
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 initialization” command through the platform command. The initialization process usually takes 1-3 minutes. After the initialization is successful, you can view it from the uplink data return status

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 equipment1:

Rotation speed: fill in according to the actual parameters of the 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 a database queries, please contact us

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 enables switch
Query detection parameter
Query software version

5.5. Query device status
Proactively initiate a diagnosis of mechanical equipment through platform instructions without waiting for the diagnosis cycle.2

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.
5.6. The power button and status indicator
Power button

Plugin the battery, the default power is on
Long press for 5 seconds to turn off the power
Long press for 3 seconds to turn on the power

Indicator light

Module registration
It will be on for 2ms every 2s until the registration is successful and the device enters sleep 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

6. Sensor detection flow chart

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 online
Check the battery usage of the device. When the battery is low, replace the battery in time.

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.

Shanghai, China
Room G, 20th Floor, No. 1098
Dongdaming Road (Pujiang
International Financial Plaza),
Hongkou District, Shanghai
+86 (0) 21-61320820| Xiamen, China
Room 803, Building A-OS,
Software Park Phase Ill, Jimei
District, Xiamen,
P.R. China
+86 (0) 592 6070310| Cambridge, UK
3 Charles Babbage Road,
Cambridge,
CB3 OCT
United Kingdom
+44(0) 1223 491 099
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