8. Application Notes and Optional Features
DMS 2 Operating Manual Page 185
Step 2:
Power on the instrument by pressing . The TG
Menu should be open and the TGMODE submenu selected.
Five selections will appear across the bottom of the display
screen.
Step 3:
Press below the selection titled PROBE. You’ll
note a list of probes that can be used with the DMS 2. Continue
pressing until the TopCOAT probe (560TC) is selected.
Step 4:
To select the TopCOAT measurement mode, press
below the selection titled TGMODE.
(Note that the T-COAT option only appears when the 560TC
probe is specified)
8.4.2 Calibrating for T-COAT Measurement Mode
Step 1:
Be sure that you’ve already connected the TopCOAT
(560TC) probe to the DMS 2. Note that after the probe setup
procedure is carried out, replacing a probe will require the zero
and calibration procedure to be repeated.
Step 2:
Be sure that you’ve already specified the 560TC
probe type then press
. This launches the TopCOAT
calibration procedure. The procedure uses the instrument’s
built-in zero block, the TopCOAT velocity reference block
supplied with your TopCOAT probe, and a calibration stan-
dard of known thickness, without coating and of the same
material as the test piece.
Step 3:
Using a thin couplant, couple the probe to the probe-
zero block found on the front of DMS 2.
Step 4:
Follow the instructions displayed, uncouple the probe
from the zero block, then couple to the dedicated TopCOAT
velocity reference standard
. Orient the flat side of the
TopCOAT probe so that it is parallel to the notched line on the
velocity reference block. This ensures consistent zeroing.
Step 5:
Again, following the instructions displayed, couple the
probe to an uncoated
calibration standard
of known thickness.
This standard should be made of the same material as the test
piece. Press
below the THICK selection until the displayed
thickness matches thickness of the
calibration standard
.
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