Overview
If your emWave2 isn’t showing a clear pulse on the Heart Rhythm Display at the start of a session, try the tips below to improve signal detection and ensure a reliable reading. These suggestions help with proper setup and use of the ear sensor.
Positioning Tips
-
Secure the Sensor Connection
Ensure the ear sensor cable is fully and firmly connected to your emWave2 unit or USB module before launching the software.
-
Connect Before Starting Software
Plug in your emWave2 or USB module before opening the emWave program so the software can detect the sensor properly.
-
Attach to the Earlobe
Clip the sensor directly onto your earlobe. Pulse detection works best when the earlobe is warm — briefly hold it in your hands before attaching to increase circulation.
Note: Blood flow to the extremities can take time to normalize, especially in cold conditions.
-
Stay Still During Setup
For best results, remain still and quiet as you attach the sensor. Talking or moving can reduce accuracy. A few deep breaths before starting may help your body relax into a steady rhythm.
-
Reposition as Needed
If you don’t get a good reading right away, try moving the sensor to a different spot on your earlobe or switch to the other ear. Wait a few seconds after repositioning to allow the pulse to register.
Technical Tips
-
Compatible Parts
Use sensors and USB modules that were purchased together for best compatibility. Sensors from different orders may not work reliably.
-
Use a Direct USB Port
Avoid USB hubs — plug the device directly into your computer’s USB port. If the sensor isn’t recognized, try a different port or reboot your computer, and grant any permission prompts.
-
Reduce USB Interference
If you’re still having trouble, disconnect other USB devices and restart your emWave setup.
-
Keep Software Updated
Regularly check for and install the latest version of the emWave software for optimal performance.
-
Clean the Sensor
Oil or skin buildup can block the sensor. To clean it, put a couple of drops of alcohol on a soft cloth and gently wipe the contact surfaces. Make sure the cloth is not dripping wet — any liquid inside the sensor can cause permanent damage