I'm trying determine the best alternative for calibrating my frequency meter's clamping system.
I saw a "Frequency Spec Shaft" in the 2003 Mitchell catalog. It is used to confirm clamping pressure in a DigiFlex or to compare readings with other frequency meters. It is an ungripped shaft with a weight on the end.
Its price is a reasonable $24.95.
I'm curious if the PCS Calibration Shaft measures a known butt frequency, as I assume the Mitchel does, or whether there are multiple clamping positions and frequencies?
I'm trying to figure out why the PCS shaft comes with [software to figure?] a conversion factor to make your normal readings match up with theirs. It seems a lot easier to adjust your clamp length until you get a match and then stick with that clamp length.
Actually getting a PCS shaft is problematic, but I'll deal with that later.
Thx,
/Ed
