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A.2 Set-up
•
Be sure that the Rheometer is securely mounted to the
Laboratory Stand, leveled and zeroed
attached and 0% torque is displayed.
•
Figure A-2 shows a typical water bath setup. Connect the
sample cup inlet/outlet ports to the water bath inlet and
outlet and set the bath to the desired test temperature.
Allow sufficient time for the bath to reach the test
temperature.
Spindle Attachment Threaded CPA Spindles
•
With the motor off, thread the cone spindle by using the
spindle wrench to secure the rheometer coupling nut (see
Figure A-3); gently push up on the coupling nut and hold this
securely with the wrench. Thread the cone spindle by hand.
•
Note: Left hand Threads
Magnetic CPM Spindles
•
Carefully insert the spindle into the coupling so the slots are
fully engaged with the pins. You should feel the pull of the
magnet as the spindle seats in the coupling.
•
When properly aligned, there should be no gap between the
spindle and coupling (See Figure A-4).
•
The CPM spindle can be removed by gently lifting the
spindle up and pulling the spindle off to the side (See
Section 3.6).
•
If the CPM spindle gets stuck to the cup, it can be removed
with GV-1712 (CP spindle remover). Slide GV-1712 over CPM
spindle until magnet engages spindle. Pivot in direction
of arrows to release spindle from fluid (See Figure A-4.1).
Remove CPM spindle from GV-1712 by pulling out, using
finger notches for access.
•
Attach the cup, taking care not to hit the cone with the cup
(Figure A-4), by positioning the cup against the mic ring and
swinging the tension bar under the cup. The tension bar
should have plastic tubing in place.
M19-2101 REVISION 2.0
with no cone or cup
D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L
Figure A-2
Figure A-3
Figure A-3.1
Figure A-4
Figure A-4.1
88
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