Starting and Stopping a Measurement
Figure 24. Example of Raw PPG Measurement Output
Ensure the patch is placed securely on the chest, powered on, and connected to the GUI.
Ensure the minimum settings requirements, listed above, are met.
Start the measurement by clicking Start. The PPG data is drawn to the Plots tab. Stop an
active PPG measurement by clicking Stop.
PPG measurements can be simultaneously enabled alongside with ECG and Bio-Z
measurements.
Electrocardiogram (ECG)
The MAXREFDES106# contains a MAX86178 complete ECG data acquisition system to collect high-
fidelity ECG data using 3M Red Dot electrodes. The MAX86178 features low-noise and high-input
impedance, plus an active right-led drive (RLD) circuit for excellent common-mode rejection (CMRR) and
robust ECG performance. Additional features such as a wide range of configurable gain options, an
automatic fast recovery mode, AC and DC lead-off detection, and an ultra-low-power (ULP) lead-on
detection circuit enables uncompromised performance in demanding applications. Evaluate nearly every
aspect of this powerful ECG solution with the ‘Evaluation GUI’. This section discusses how to set up a
basic ECG measurement and provides an overview of how the ECG measurement is structured.
See the MAX86178 data sheet for a more detailed description and available feature-set of the ECG AFE.
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