Here are my level 3 formulas. Keep in mind that our iSpindels are most probably nothing alike. Different weight and preforms will affect the reading hence requiring you to perform a calibration yourself (unless it was done for you). Feel free to use these or just compare them against what you were provided.
FYI, my iSpindel is the 'Jeffrey v2.69'.
Specific Gravity SG Degree 3:
0.879567915197187+0.006988310674286621*tilt-0.00011172081420281466*tilt*tilt+7.702702215063703e-7*tilt*tilt*tilt
PLATO Degree 3:
-30.737244588736086+1.7799107331448423*tilt-0.02816986329711063*tilt*tilt+0.00018886463451378357*tilt*tilt*tilt
View attachment 826661
View attachment 826662