Brookfield Engineering Labs., Inc.
Page 3
Manual No. M02-33E209
Spindle 04
CALIBRATE?
YES/NO
Figure II-4
If you are using the CAP Viscometer for the first time or have just received the instrument back
from being serviced, press YES and see Section III. Cones supplied at the time of order are
calibrated to the viscometer by Brookfield prior to shipment, but should still be verified with a
calibration check prior to use for the first time. Cones purchased separately at a later time by
the user must also be calibrated prior to making viscosity measurements. If you have 2 cone
spindles that are identical (have the same number), you must do a cone calibration when you
swap them.
Otherwise, there is no requirement to perform a cone calibration.
Note
:
1. CAP Viscometers allow for
only one
cone at a time of the
same cone number
to
be calibrated to the viscometer. Multiple cones of the same cone number
must each
be calibrated
to the viscometer before operation (refer to
Section III
).
2. A special feature of the CAP series viscometers allows the user to perform a cone
calibration with viscosity standard fluids.
3. Cones entered as 11 through 99 must be first calibrated following the directions in
Section III.
If you are not going to calibrate the cone, continue by pressing the
NO
key, then the
ENTER
key.
The viscometer will display the
MAIN
SCREEN
(
Figure
II-1
). Should you subsequently run
a test and observe that the instrument is reading all “0s”, the “P” for Poise is flashing, and the
“%” symbol is flashing, then the cone spindle you are using is not calibrated. You must perform
the cone spindle calibration to rectify the problem.
If you are going to calibrate the cone, press the
YES
key, refer to
Section III
and follow the
calibration instructions under
Cone Calibration
.
II.3 Speed Setting
The CAP 2000+ is a variable speed viscometer. The speed of rotation is shown in the lower
right corner of the display. To change the speed of rotation, enter the new speed using the
number keys. The new speed will be shown in the lower right hand corner of the display. To
accept the new speed, press
ENTER
.
The new speed may be cancelled by pressing
ESCAPE
before pressing
ENTER
.
To begin spindle rotation, press the
RUN
key.
Note:
The speed cannot be changed while the motor is running.
Speed control may be configured to either shear rate or rotations per minute (see Special Func
-
tions in section II.1). Data entry for speed selection is the same in either configuration.
Data entry must be in whole numbers.
