Checkline PT-RTR - Manual (Page 13)

10
Tape Grade
Cal Settings Menu Cal Settings Menu
The probe should be zeroed regularly to ensure best accuracy.
While the user will be required to zero the probe every time the
Gage is powered-up. The Zero menu item allows the procedure to
be performed at more regular intervals. It is particularly useful
during long measurement sessions.
Clean the probe with the included cleaning card (pg. 7) before
performing a probe zero.
1. Select Zero from the Cal Settings menu
2. Simultaneously press and hold both probe buttons firmly until
the Gage beeps and the arrows point outward. Do not place
anything in the measurement opening during this procedure.
Zero
Selects a replica tape grade. Required when Linearize mode (H
L
)
is ON.
C - Course
XC - Extra Course (default)
Simultaneously press and hold both probe buttons
firmly until the Gage beeps and displays “0”. This can be
performed from the main measurement screen without having to
access the menu.
Coarse Minus and X-Coarse Plus grades are not
supported in Linearize mode since the only function of these two
grades is to improve upon the accuracy of C tape at its low end and
XC tape at its high end, something the PosiTector RTR will
automatically do when measuring H
L
. When Linearize mode is
OFF, the PosiTector RTR will measure all four grades of replica
tape just like a conventional spring micrometer.
NOTE:
SHORTCUT: