DeFelsko PosiTector 6000 v.4.0 - Manual (Page 12)

12
Two-point Optimization
(FT, FTS, NT, NTS, FNT, FNTS, FHS, NHS and
Microprobes only)
This method requires taking a reading on
both the uncoated object (
ZERO ZERO) and on
a known thickness (
2ND PNT 2ND PNT). This
second point should be near the top end
of your application thickness to be
measured.
1. “
ZERO? ZERO?” the Gage as described in
“Average Zero Adjustment” (p.10).
2. Select the
2ND PNT? 2ND PNT? (Main Menu)
option.
3. Press 9 9 to set the number of readings
used to obtain an average, typically 3
to 9. The greater the variation between
readings, the more readings should be
taken to obtain an average. The
display will show the number of
readings remaining to be taken; i.e.
“
2NDPNT4X 2NDPNT4X”
4. Repeatedly measure the known
thickness (coated part, a plastic shim
or a Coating Thickness Standard) until
the display shows
2PT 2PT=value. The
Gage will display “
WAIT WAIT” for 2 seconds
between readings to allow the user to
correctly position the probe on the
surface.
5. Lift the probe from the surface and
adjust the displayed reading down 8 8 or
up 9 9 to the known thickness value.
Press 8 8 9 9 simultaneously to accept this
value.