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| resetting TeltoHeart or consult the user manual for further troubleshooting steps.<br> | | resetting TeltoHeart or consult the user manual for further troubleshooting steps.<br> |
| 4. Make sure that there has been no movement. | | 4. Make sure that there has been no movement. |
| + | ---- |
| + | ===Failure to detect wrist=== |
| + | TeltoHeart detects the wrist using light-based sensors (photoplethysmography), which measure blood |
| + | volume changes beneath the skin by emitting and detecting light. Additionally, electrode leads in direct |
| + | contact with the skin detect electrical signals generated by the heart, confirming the presence of the |
| + | wrist. To ensure proper wrist detection:<br> |
| + | 1. '''Ensure Secure Fit:''' Properly secure TeltoHeart around the lower arm, just above the wrist |
| + | bone, as illustrated in the user manual. A snug fit enhances the efficiency of both sensor |
| + | types.<br> |
| + | 2. '''Check for Hairiness:''' Excessive hair on the wrist may hinder the performance of optical |
| + | sensors. Ensure the skin beneath the device is free from obstructions for accurate |
| + | readings.<br> |
| + | 3. '''Assess Skin Contact:''' Anything obstructing direct skin contact, such as clothing or |
| + | accessories, can impact sensor functionality. Confirm unobstructed contact for optimal |
| + | wrist detection.<br> |
| + | 4. '''Verify Device Positioning:''' Wear the device approximately 1 cm above your wrist bone. |
| + | Incorrect positioning may disrupt the alignment of sensors with the skin, affecting the |
| + | accuracy of detection. |
| ---- | | ---- |