Using Auto-Calibration for Setting Up the Xero A1i PRO

Using the bow's draw length, arrow diameter, and chronograph arrow speed, the Xero® A1i Pro bow sight can predict the ballistic profile of your arrow and automatically calibrate the pin stack out to the max range of the sight window. For Arrow Diameter, there are options for Micro (5 mm or less), Standard (6.5 mm), and Large (8 mm or larger) to choose from within the menu.

Automatically Calibrating Pins

1. Select Language.

2. Select units, Yards or Meters.

3. Start pin calibration, select Yes.

4. Set draw length, select Yes.

5. Use the left and right arrows to set the draw length, press OK

6. Set arrow speed, select Yes.

7. Enter a chronograph speed of the arrow, press OK.

8. Select a ranged pin color, Green or Red.

9. Use the arrow buttons to adjust brightness, press OK.

10. Pin position will set the top pin placement, press OK to start.

11. Use the arrow buttons to adjust the top pin placement, press OK to confirm.

12. On target alignment, press OK to start. Follow the on screen instructions.

13. Calibrate 20 yard pin, press OK to start. Follow the on screen instructions.

14.  Align Reticle, press OK to start. Follow the on screen instructions.

15. Calibrate Pin Stack, press OK to start. 

16. Select Yes to begin auto-calibrating the pin stack. NOTE: Selecting No will results in beginning the manual calibration process.

17. Select Yes to enter sight height and sight length for improved accuracy at longer distances, select Skip to move the the Select Arrow Diameter step.

    • Grip to Sight (Length) is the distance in inches between the throat of the grip to the sight ring.

      

    • Sight Height is the distance in inches between the sight and a nocked arrow.

      

      NOTE: Sight length and sight height allow the Xero A1i PRO sight to know the precise Minute of Angle (MOA) associated with the pin stack and allow for 70+ yard distances to have improved accuracy. 

18. Use the < and > buttons to scroll through arrow diameter options.

19. Press OK to confirm your choice.

20. Validate the pin stack, press OK to start. Follow the on screen prompts.Note: Validating the pin stack ensures the sight has been tuned to the arrow's true ballistic profile. 

21. After validation is complete follow the on screen prompts to complete calibration. 

NOTE: If a mistake is made during calibration, you can Reset All Settings on the Xero A1i PRO sight. The sight will then reset back to factory defaults and the initial calibration can be started again. Follow the process as outlined in Reset the Xero A1 or A1i Back to Factory Default Settings.

NOTE: If you run out of horizontal travel for setting windage the bow should be tuned by a professional.