WECG400
WECG400

WECG400

The first parallel testing ECG tester specifically designed for wearable devices can simultaneously test ECG function on up to 4 devices with a single computer to accelerate testing time.
It provides compliance tests conforming with IEC 60601-2-47, YY0885, and YY 9706.247-2021, and can output 7 types of standard ECG waveforms to assist wearable devices in meeting regulatory requirements of accuracy.
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Overview

Origins

Wearable device manufacturers continuously strive to enhance product performance and accuracy to approach medical device standards and meet the user demand for precise ECG recording. Therefore, for effective product validation, more precise test signals and compliance testing are essential.
However, current testing methods in the quality assurance department or production lines often only allow for one device to be tested at a time. If testing numerous devices and introducing more test items are unavoidable, this necessitates additional testing equipment and workforce.

So we designed an ECG tester specifically for wearable devices—WECG400, featuring 4 electrode ports that enable operators to test 4 devices simultaneously and save time on repetitive setups.
It integrates IEC 60601-2-47 test items, including dynamic range, input impedance, and frequency response, helping manufacturers ensure each product meets regulatory requirements of accuracy. 

Accurate ECG testing relies on precise and small test signals, so reducing noise interference is fundamental to ECG testers. Not to mention that different equipment in the production line might generate various types of noise, which can affect the tests. Therefore, to effectively mitigate environmental noise interference, we have paid particular attention to the WECG400's multiple anti-interference designs, minimizing noise's impact on test signals and ensuring accurate and reliable test results.

At the same time, to ensure smooth performance verification, the WECG400 must be seamlessly integrated into the existing testing process. Therefore, we provide a free Software Development Kit (SDK) that allows engineers to develop their own automated testing software. They can design programs that best fit into the current testing process, and even control multiple WECG400 to test more than 4 devices at once, maximizing testing efficiency.
Enhancing testing efficiency and ensuring product quality for manufacturers have always been our goals. We hope the WECG400 can overcome the challenges of testing and validation without compromising efficiency or precision.

 

Functions

 

Effectiveness

Simultaneously Tests 4 Wearable Devices

Features 4 sets of RA/LA/RLD electrode ports for testing 4 devices at once.

Efficiency

Outputs 7 Types of Standard ECG Waveforms

Outputs ECG, Sine, Triangle, Square, Exponential, Rectangle Pulse, and Triangle Pulse waveforms. Parameters such as BPM, frequency, and amplitude can be adjusted as needed, and a DC offset signal can be added for testing.

REPAIR

Provides Compliance Testing

Provides tests* required by IEC 60601-2-47, YY0885, and YY 9706.247-2021, including dynamic range, input impedance, and frequency response, with switchable setting values via software, ensuring the accuracy of products.

REPAIR

Plays Raw Data

Supports playback of ECG databases, clinical data, or user-defined waveforms used during development to verify the consistency and stability of products.

 

*Note: For the two tests as system noise and common mode rejection, please refer to the CMRR 3.0+ Common Mode Rejection Ratio Tester for testing.

 

 

Highlights

Anti-interference Design for Mitigating Environmental Noise Interference and Outputting High-quality Signals

 

  • Multiple shielding designs and ESD protection to minimize environmental noise interference
  • Separates and filters noise with digital signal processing technology to provide precise test signals

Customizable Input Impedance Testing for Verifying Manufacturers' Specifications

 
title
  • In addition to the standard value 620kΩ / 4.7nF, customizable input impedance tests such as 10MΩ / 180nF are available to optimize the signal receiving quality of the DUT (device under test)

 

Note:
1. The screenshot shown is the WECG400 performance test software, intended for quickly verifying the WECG400 performance only. Users can develop actual test software for production lines using the SDK as needed.
2. The screenshot is for reference only. For the latest version of the WECG400 performance test software, please contact WhaleTeq.

 

 

Raw Data Playback — Performance Verification Using Real ECG Signals

title
  • Supports playback of ECG databases or clinically recorded waveforms to test the DUT's interpretation capability
  • Plays user-defined signals to verify specially designed specifications

 

Note:
1. The screenshot shown is the WECG400 performance test software, intended for quickly verifying the WECG400 performance only. Users can develop actual test software for production lines using the SDK as needed.
2. The screenshot is for reference only. For the latest version of the WECG400 performance test software, please contact WhaleTeq.

     

    Flexibly Expands Testing Capability and Integrates WECG400 into the Testing Process with SDK

    • Manufacturers can develop automated testing software based on their needs to integrate WECG400 into the existing testing process while shortening the transition period for replacing current test equipment with it
    • Controls multiple WECG400 to simultaneously test more than 4 DUTs

    Specification

    Standard ECG waveforms

                 
    ParametersRangeResolutions
    ECG WaveformFrequency (Hz)0.02 ~ 6Hz0.01
    Frequency (BPM)1 ~ 360BPM1
    Amplitude(-5) ~ 5mV0.01
    SineFrequency (Hz)0.05 ~ 500Hz0.01
    Frequency (BPM)3 ~ 30000BPM1
    Amplitude(-10) ~ 10mV0.01
    TriangleFrequency (Hz)0.05 ~ 500Hz0.01
    Frequency (BPM)3 ~ 30000BPM1
    Amplitude(-10) ~ 10mV0.01
    SquareFrequency (Hz)0.05 ~ 500Hz0.01
    Frequency (BPM)3 ~ 30000BPM1
    Amplitude(-10) ~ 10mV0.01
    ExponentialFrequency (Hz)0.05 ~ 5Hz0.01
    Frequency (BPM)3 ~ 300BPM1
    Amplitude(-5) ~ 5mV0.01
    Rectangle PulseFrequency (Hz)0.05 ~ 5Hz0.01
    Frequency (BPM)3 ~ 300BPM1
    Amplitude(-5) ~ 5mV0.01
    Pulse width (frequency: 0.05Hz)1 ~ 300ms1
    Pulse width (frequency: 5Hz)1 ~ 200ms1
    Triangle PulseFrequency (Hz)0.05 ~ 5Hz0.01
    Frequency (BPM)3 ~ 300BPM1
    Amplitude(-5) ~ 5mV0.01
    Pulse width (frequency: 0.05Hz)1 ~ 300ms1
    Pulse width (frequency: 5Hz)1 ~ 200ms1

     

    Input Impedance / Frequency Response Signal add-on

                 
    ParametersRangeDefault ValuesResolutions
    Play raw dataSample rateMaximum: 40K Hz--
    DC offset (non-Variable)-300, 0, +300mV0mV300
    DC offset (Variable)(-1000) ~ 1000mV0mV100
    Input impedance switch100Ω (short circuit)--
    620kΩ / 4.7 nF on/offOff (on: short circuit)-
    10MΩ / 180 pF on/offOff (on: short circuit)-

     

    Product System Capacity and Standard Requirements Table

    ParametersSpecificationsSystem Capability
    Main output voltage accuracy±1% for amplitudes of 0.5mVpp or higher±0.3%
    Main output voltage resolution
    (DAC resolution)
    N/A0.15µV
    Frequency / pulse repetition rate accuracy±1%±0.1%
    Pulse duration / timing accuracy±1ms±0.2ms
    Resistor tolerance±1%±0.5%
    Capacitor tolerance±5%  ±5% 
    Precision 1000 : 1 divider   ±0.5% ±0.3% 
    Sample rate 5kHz ± 0.1% 10kHz ± 0.05% (50ppm) 
    DC offset
    (fixed, noise-free, sourced from the internal supercapacitor)
    300mV ± 1% 300mV ± 0.1% 
    DC offset
    (variable, up to 1000mV)
    Setting ±1% or ±3mV Setting ±1% or ±3mV 
    Environment 15 ~ 30°C (by design)
    30 ~ 80% RH (by design) 
    5 ~ 40°C
    30 ~ 80% RH
    altitude < 2000M
    Overvoltage CAT II 

     

    Ordering information

    WECG400 Standard Package

    Part No.ImageDescriptionQuantity
    100-AE00009Model No.: WECG400
    Model Name: Parallel Testing ECG Tester for wearable device production lines
    1

    Optional Accessories

    Part No.ImageDescriptionQuantity
    S92-0204021DC12V power adaptor1
    K21-0738301RCA to BNC cable (73.8cm)1
    K27-1800301USB Type-A to Type-B cable (male to male) (1.8m)1
    K22-1050101Signal grounding wire (alligator clip to banana male) (1m)1
    K29-1000801Grounding wire (alligator clip to ring terminal) (1m)1
    N54-0120013Compound terminal1

    Optional Calibration Service and Warranty Extension

    Part No.Description
    YY0007Model No.: C3
    Provides (3) years of calibration service coverage. WhaleTeq equipment can be calibrated to original performance on the basis of (1) year interval.
    YY0008Model No.: R3
    Extends the limited warranty from (1) year to (3) years.
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