PPG-2R-880 / PPG-2R-940 | Reflectance SpO2 Module

PPG-2R-880 / PPG-2R-940 Reflectance SpO₂ Module

The PPG-2R-880/PPG-2R-940 works with the AECG100 main console or SECG 5.0 AIO Multi Vital Sign Simulator, as the first reflectance SpO₂ performance tester designed for R&D in manufacturers.
This dual-channel optical module outputs R and IR analog signals to test blood oxygen saturation (SpO₂) and heart rate functions. Besides, it also allows users to adjust the R/IR’s rate of change of respiratory signals in PPG and set up add-on noise. It’s suitable for the development and verification of reflectance PPG products like wearable devices.

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Origins

Wearable devices have made our lives more convenient, making it easy to measure various vital signs, such as blood oxygen saturation, heart rate and blood pressure. Many well-known manufacturers have also introduced new products and continued to develop more accurate products with more functions.

When communicating with our clients, we learned that to obtain more accurate test results, engineers very much hope to have a device that can flexibly set the AC, DC, waveform, frequency and amplitude of R or IR when designing the blood oxygen function. They need a simulator to verify test challenges at each stage, such as signal processing, frequency response, system integration verification, etc.

Therefore, the AECG100 + PPG-2R-880/PPG-2R-940 Reflectance SpO₂ Module came into being, which not only meets the flexible setting of PPG waveforms expected by engineers, but can also adjust the characteristic points of the waveform in a wide range and in detail. You can also customize your own R curves, no longer need to conform to established templates.

Also, with the original ECG function of AECG100, it can simultaneously send out ECG and PPG signals, adjust the parameters of Pulse Wave Transit Time (PWTT), and thus verify the accuracy of the blood pressure measurement algorithms.

In addition to the complete functions and flexible testing mentioned above, we also learned from our customers that engineers often need to quickly verify products before mass production. The PPG-2R-880/PPG-2R-940 module can automatically calculate the R/IR DC value of the DUT and import it into the SpO₂ table, quickly establishing an exclusive R curve, and efficiently verifying product quality. PPG- 2R-880/PPG-2R-940 also contains the function of simulating respiratory changes, which can be superimposed on the test to get closer to the real situation and make it more comprehensive.

To conduct testing more efficiently, we also provide a free Software Development Kit (SDK), which enables them to develop automated testing software by themselves, flexibly expand testing capabilities, and reduce human errors that may result from repeated settings and operations. We can use the PPG-2R-880/PPG-2R-940 module to accurately test wearable devices, ensure accuracy and consistency, and meet product specification requirements.

Features

Basic Waveform Output

PPG Signal Generation

Blood Oxygen R Curve Simulation

Adjustable PWTT Pulse Wave Transit Time

Saving Test Parameters

Raw Data Playback

Simple Automated Test

Outputs PPG Waveform, Sine, Triangle, and Square. Users can adjust large and precise parameters according to needs, and DC offset signal testing.

PPG-2R-880 Reflectance SpO2 Module Outputs PPG Waveform, Sine, Triangle, and Square. Users can adjust large and precise parameters according to needs, and DC offset signal testing.

Simulates Sine, Triangle, and PPG analog signals, providing analog signals of green, red, and infrared light. It can measure reflectance PPG heart rate, SpO2, adjust the characteristic points of the PPG waveform in a large range and in detail. Including Systolic Peak (SP), Dicrotic Notch (DN), Diastolic Peak (DP), etc., elastically conduct specific tests.

PPG-2R-880 / PPG-2R-940 Reflectance SpO2 Module Simulates Sine, Triangle, and PPG analog signals, providing analog signals of green, red, and infrared light.

Simulates the R curve of DUT to verify the SpO2 and perfusion index PI values.

Simultaneously send out ECG and PPG signals, adjust the time difference (PTTp and PTTf) between the two signals, and verify the accuracy of the blood pressure algorithm of DUT.

PPG-2R-880 / PPG-2R-940 Reflectance SpO2 Module with Adjustable PWTT Pulse Wave Transit Time

Saves test parameters of different test items for integrated testing to reduce human errors.

Playback raw data waveforms and reproduce clinically recorded or customized waveforms.

Supports automated testing, using software to control the entire testing process, and can also manually edit auto-sequence for testing.

PPG-2R-880 Reflectance SpO2 Module Supports automated testing, using software to control the entire testing process, and can also manually edit auto-sequence for testing.

Highlights

Simulations that Are Closer to Time and Real Situations

PPG-2R-880 and PPG-2R-940 Reflectance SpO2 Module Provides the function of simulating respiratory changes, making the superimposed test closer to the real situation

Provides the function of simulating respiratory changes, making the superimposed test closer to the real situation

Customize or Load R Curves for Quick Verification

Quickly establish the R curve of the DUT to test the quality consistency and accuracy of the oximeter
Provides R-curve examples of major brand manufacturers as reference for development

Software Development Kit for Flexible Development of Testing Program

Users can develop automated testing software according to their needs to control the testing process, reducing the burden of repetitive operations during extensive testing

Customized Performance Testing Solutions for Smartwatches and Smart Rings

Provides customized fixture and finger socket services to align the LEDs and PDs of the DUT and testing equipment for achieving more precise test results

👉Smartwatch Performance Testing Package
👉Smart Ring Performance Testing Package

Note: Please refer to our FAQ page for more information or contact us for further assistance.

SpO₂ Test Mode

Parameters	Specifications
Heart Rate Setting Range	10—300BPM
Heart Rate Minimum Step Size	1BPM
Heart Rate Accuracy	±1BPM
LED DC Level Reference Output Setting Range	100—3000mV
LED DC Level Reference Output Minimum Step Size	1mV
LED AC Level Reference Output Setting Range	0.75—30mV
LED AC Level Reference Output Minimum Step Size	0.01mV
PI (AC level/DC level) Setting Range	0.025%—30% (AC/DC, varies with AC or DC level)
PI (AC level/DC level) Accuracy	NA
LED Light Wavelength Range	Red: 660nm; Infrared: 940nm/880nm
LED Light Wavelength Accuracy	Red:±10nm; Infrared: ±10nm
Red Light Absolute Irradiance(100%) Intensity^§	3.55 mW / m^2
Red Light Absolute Irradiance(100%) Accuracy	±15%
Infrared Light Absolute Irradiance(100%) Intensity^§	6.65 mW / m^2
Infrared Light Absolute Irradiance(100%) Accuracy	±15%
LED Scan Rate	50—40kHz (Normal mode/Standalone mode) ⁽¹⁾; 10kHz (Raw data mode)
LED Scan Rate Accuracy	±5μs
PD Sample Rate	250kHz (single channel)
PD Sample Rate Accuracy	±5μs
PD Rising Response Time	1μs Typical ⁽²⁾
PD Falling Response Time	1μs Typical ⁽²⁾
SpO₂ (%) Setting Range	1%—100%
SpO₂ (%) Minimum Step Size	1%
SpO₂ (%) Accuracy	±1%+specified accuracy of the DUT (using Masimo Radical-7 Pulse CO-Oximeter or "Covidien" Nellcor Portable SpO₂ Patient Monitoring System)
§Data Collection Method: To connect the spectrometer with a 2-inch integrating sphere, and fix the integrating sphere on the DUT to measure the absolute irradiance of the LED of the DUT. *Note: (1) When used with the AECG100, it supports normal mode, standalone mode, and raw data mode; when used with the SECG 5.0 AIO, only the raw data mode is applicable. (2) PD response time varies with the light intensity of the DUT.

SpO₂ Test Mode Parameters

Parameters	Setting Range	Default Values	Minimum Step Size
Output Waveform	Sine / Triangle / PPG	PPG	-
BPM	10—300BPM	60BPM	1BPM
SpO₂	0—100%	98%	1%
Red
PI (AC level/DC level)	0.025—30%	2.000%	0.001%
AC	0.75—30mV	12.50mV	0.01mV
DC	100—3000mV	625mV	1mV
Output DC (offset)	0—2000mV	0mV	1mV
Lock	Lock AC/DC	Lock DC	-
Infrared
PI (AC level/DC level)	0.025—30%	4.000%	0.001%
AC	0.75—30mV	25.00mV	0.01mV
DC	100—3000mV	625mV	1mV
Output DC (offset)	0—2000mV	0mV	1mV
Lock	Lock AC/DC	Lock DC	-

PPG Test Mode

Parameters	Specifications
Heart Rate Setting Range	10—300BPM
Heart Rate Minimum Step Size	1BPM
Heart Rate Accuracy	±1BPM
LED DC Level Reference Output Setting Range	100—3000mV
LED DC Level Reference Output Minimum Step Size	1mV
LED AC Level Reference Output Setting Range	0.75—30mV
LED AC Level Reference Output Minimum Step Size	0.01mV
Lumen Setting Range	50—925 Lux (full range) (5mm from diffusion film)
Lumen Resolution	(1 / 3000) full range
Lumen Accuracy	±6%
Light Wavelength Range	525 / 660 / 880 / 940nm
Light Wavelength Accuracy	±10nm
LED Scan Rate	50—40kHz (Normal mode/Standalone mode); 10kHz (Raw data mode)
LED Scan Rate Accuracy	±5μs
PD Sample Rate	250kHz (single channel)
PD Sample Rate Accuracy	±5μs
PD Response Time (Rising)	1μs Typical (Varies from DUT LED intensity)
PD Response Time (Falling)	1μs Typical (Varies from DUT LED intensity)

PPG Test Mode Parameters

Parameters		Setting Range	Default Values	Minimum Step Size
Output Waveform		Sine / Triangle / Square / PPG	PPG	-
BPM		10—300BPM	60BPM	1BPM
Frequency		0.17—5	1.00	0.01
Green / Red / Infrared (Voltage)
PI		0.025—30.000%	2.000%	-
DC		100—3000mV	625mV	1mV
Systolic Peak (SP) (AC)		0.75—30.00mV	12.50mV	0.01mV
Dicrotic Notch (DN)		0.75—30.00mV	7.00mV	0.01mV
Diastolic Peak (DP)		0.75—30.00mV	8.00mV	0.01mV
Lock		Lock DC: only DC of voltage locked	Lock DC	-
Lock		Lock AC: AC, DN, DP of voltage locked	Lock DC	-
Red / Infrared (Time)
Systolic Peak (SP) (AC)		0—1000ms (60BPM)	150ms	1ms
Dicrotic Notch (DN)		0—1000ms (60BPM)	360ms	1ms
Diastolic Peak (DP)		0—1000ms (60BPM)	460ms	1ms
Noise Generator (Time)
Frequency		off / 0.5 / 1 / 2 / 3 / 5 / 10 / 25 / 50 / 60 / 100 / 120 / 1K / 5K Hz / White Noise	off	-
Amplitude		0.05—2.00mV	0mV	0.05mV
Respiration
Respiration Rate		1—150BrPM	20BrPM	1BrPM
Inhale-Exhale Ratio		1:1, 1:2, 1:3, 1:4, 1:5	1:1	1
Wave Modulation		Baseline / Amplitude / Frequency	Baseline / Amplitude / Frequency	-
Respiration – Baseline Modulation		Variation – R: 1—16% Variation – IR:1—16%	1% 1%	1% 1%
Respiration – Amplitude Modulation
Respiration – Frequency Modulation
Apnea Selection	Duration	1—60s	10s	1s
Apnea Selection	Cycle	1—10min	1min	1min

PWTT Test Mode

Parameters	Specifications
Time Difference (PTTp, PTTf) Setting Range	0—5999ms (for the heart rate setting as 10BPM. As the heart rate value increases, the setting range of time difference will decrease accordingly.)
Time Difference (PTTp, PTTf) Minimum Step Size	1ms
Time Difference (PTTp, PTTf) Accuracy	±1ms

Webinar

SpO₂ Module

Part No.	Image	Description	Quantity
100-AE00004		Model No.: PPG-2R-880 Model Name: Reflectance SpO₂ module	1
100-AE00005		Model No.: PPG-2R-940 Model Name: Reflectance SpO₂ module	1

Compatible Products

Part No.	Image	Description	Quantity
100-AE00001		Model No.: AECG100 The main console unit for ECG testing.	1
100-EC00002		Model No.: SECG 5.0 AIO Model Name: Multi Vital Sign Simulator The standalone ECG simulator with 12 leads (RA, LA, LL, N, V1 - V6) output for ECG performance tests.	1

Optional Calibration Service and Warranty Extension

Part No.	Description
YY0007	Model No.: C3 Provides (3) years of calibration service coverage. WhaleTeq equipment can be calibrated to original performance on the basis of (1) year interval.
YY0008	Model No.: R3 Extends the limited warranty from (1) year to (3) years.