What is Qualify Passive qualification?

This is the only qualification routine available for the XXT TL1, TL2, or TL3 when qualifying a new stylus system or a new stylus on an existing stylus system.  It uses a series of circular scans on the Reference Sphere at low and high forces and slow and fast speeds to calculate bend. Then a six point routine to calculate size and location of the stylus sphere.  This initial routine requires 180 degrees of sphere coverage.