Brookfield RVDV-II+Pro - A.3 Setting the Gap

Brookeld Engineering Labs., Inc. Page 52 Manual No. M/03-165-D0410
A.3 SETTING THE GAP
1. Move the toggle switch to the right; this will
turn on (enable) the Gap Setting Feature.
The Pilot (red) light will be illuminated.
2. If the contact light (yellow) is illuminated,
turn the micrometer adjustment ring clock-
wise (as you look down on the instrument)
until the light is no longer illuminated (see
Figure A5
).
3. If the yellow contact light is not illuminated,
slowly turn the micrometer adjustment ring
in small increments (one or two scale divi-
sions) counter-clockwise.
Continue moving the micrometer adjust
-
ment ring slowly counter-clockwise until the
contact light (yellow) rst turns on. THIS
IS THE “HIT POINT
.”
4. Adjust the sliding reference marker, right or
left, to the closest full scale division mark
(see Figure A6)
.
5. Turn the micrometer adjustment ring one
scale division to the left to meet the line on
the sliding reference marker. THE YEL-
LOW CONTACT LIGHT SHOULD GO
OFF.
6. You have established the gap space needed
for measurement. Now turn the toggle
switch OFF (left); the red pilot light should
go off.
The viscosity of electrically conductive uids
may be affected if readings are taken with the
Electronic Gap Setting feature “on”. Be sure to
shut the feature “off” before taking readings!
7. Carefully remove the sample cup.
Notes:
1. The cup may be removed and replaced without
resetting the gap if the micrometer adjustment ring
has not been moved.
2. Remove the spindle from the viscometer when
cleaning.
3. Re-establish the hit point every time the spindle is
attached/detached.
Moves Away
from Hit Point
(clockwise)
LEFTx
Moves Towards
Hit Point
(counter-clockwise)
RIGHT
Full Scale
Division Marks
Sliding
Reference
Marker
Figure A5
Figure A6