Brookfield DV-III Rheometer - Manual (Page 29)

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When you are satisfied the pins are just hitting (by observing acceptable % readings), make a pencil mark
on the adjustment ring directly under the index mark on the pivot housing (Figure A6).
Figure A6
Turn the adjustment ring to the left (clockwise as you look down on the instrument) exactly the width
of one division from the pencil mark you have just made. This will separate the pins by 0.0005" (0.013
mm). This is a very important step because if it is not done, the pins may touch constantly and may cause
wear and damage to the cone, cup and instrument. The Rheometer is now mechanically set and ready
for sample measurement (Figure A7).
Figure A7
Adjusting Ring
Index Mark
Make a pencil
mark directly
under the
index mark
Make a Pencil Mark
Directly Under the
Index Mark
Index
Mark
Adjustment
Ring
Index Mark
Adjusting Ring
One Scale
Division
Index Mark
One Scale
Division
Turn Adjustment Ring Clockwise a
Distance Equal to One Scale Division
Adjustment
Ring