Spacers, XPod Swapping, and When to Recalibrate
Guidelines for spacer configuration, XPod interchangeability, and calibration requirements
Understanding Calibration vs. Zeroing
Calibration allows the XPod to accurately map the magnetic field of the Angle Reference. This happens automatically by swinging the oarlock through its range of motion (takes about 10 seconds).
Zeroing tares the sensor to 0 degrees at the current position of the oarlock.
Spacer Configuration
You can use up to 3 snap washers (spacers) between the Angle Reference and the oarlock to accommodate different oarlock heights.
For optimal accuracy, you should recalibrate AND re-zero when:
- Adding or removing spacers
- Moving or tightening the Angle Reference
- Attaching or swapping an XPod onto an oarlock
Data Accuracy Without Recalibration
If you change configurations mid-practice without recalibrating:
Angle readings:
- Accuracy: ±2 degrees
- Zero position may shift: ±3 degrees
- Example: If your catch angle is actually 55°, it might read 53-57°
Force readings:
- ✅ Remain accurate - not affected by spacer changes
Best Practice
If you must change spacer configuration during practice, force data remains reliable but angle data will be compromised. Recalibrate as soon as possible for accurate angle measurements.
For complete calibration and zeroing instructions, see the Calibration & Zeroing guide.