Brookfield Dial Viscometer - Manual (Page 11)

Brookfield Engineering Laboratories, Inc. Page 11 Manual No. M/85-150-P700
Turn the adjustment ring to the right (counterclockwise as you look down on the instrument) in small
increments (one or two divisions of the ring) while watching the Viscometer dial (Figure A5).
Remember that you are trying to raise the cup so that the pin in the cone touches the pin in the cup. Once
you have found this hit point, you can "back off" to create the desired gap between cone and cup. You
must wait at least 6 seconds between movements of the ring.
Turn the adjustment ring until the display reading jumps from 0.0 to 0.5% (HA and HB models) or from
0.0 to 0.5 % (RV models) or 0.0 to 1.0% (LV models). This is the HIT POINT. The cup may have to
be adjusted up and down several times before this deflection is satisfactorily reached. The LV series
Viscometer will be the most sensitive.
Figure A5
Turn Adjusting Ring clockwise until
the % torque display is stable at 0.0%
Adjustment Ring
Index Mark
Turn Adjustment Ring Counter-
clockwise in Small Increments
Adjustment Ring
Index Mark
Figure A4