Appendix a - cone/plate viscometer set-up – Brookfield DV-I Prime User Manual
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Brookfield Engineering Laboratories, Inc.
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Manual No. M/07-022-D0613
Appendix A - Cone/Plate Viscometer Set-Up
This Cone/Plate version of the DV-I PRIME uses the same operating instruction procedures as
described in this manual. However, the “gap” between the cone and the plate must be verified/
adjusted before measurements are made. This is done by moving the plate (built into the sample
cup) up towards the cone until the pin in the center of the cone touches the surface of the plate,
and then by separating (lowering) the plate 0.0005 inch (0.013mm).
DV-I PRIME Cone/Plate Viscometers have an Electronic Gap Setting feature. This feature
enables the user to easily find the 0.0005 inch gap setting that was established at Brookfield prior
to shipment.
The following information explains how to set the Electronic Gap and verify calibration of the
DV-I PRIME Viscometer.
A.1 Electronic Gap Setting Features
TOGGLE SWITCH
allows you to enable/disable the Electronic Gap Setting Feature: left position is
OFF (disabled), right position is ON (enabled).
PILOT LIGHT
is the red (LED) light; when illuminated, it means the Electronic Setting Function is
sensing (enabled).
CONTACT LIGHT
is the yellow (LED) light; when it first turns on, the “hit point” has been found.
SLIDING REFERENCE MARKER
is used after finding the “hit point;” it is the reference for establishing
the 0.0005 inch gap.
MICROMETER ADJUSTMENT RING
is used to move the cup up or down in relation to the cone spindle.
Turning the ring left (clockwise) lowers the cup; turning it right (counterclockwise) raises the cup.
Each line on the ring represents one scale division and is equivalent to 0.0005 inch movement of
the plate relative to the cone.
Pilot Light
(red)
Toggle Swtich
Contact Light
(yellow)
Sliding Reference
Marker
Micrometer
Adjustment Ring
Figure A-1