Brookfield DV1 User Manual

Brookeld Engineering Laboratories, Inc. Page 19 Manual No. M14-023
TIP: Speeds are grouped according to traditional LV and RV settings.
TIP: When setting a test procedure, be aware if the data must be compared to another site.
If a comparison is required, it is best to utilize speeds that are traditionally associated
with the torque range of the viscometer. is will ensure that all test sites will be able to
reproduce the test method exactly.
e Set Speed screen also includes the currently selected spindle and the Full Scale Range of viscosity
(FSR). e FSR represents the maximum viscosity value that can be measured with the currently
selected spindle and speed combination. As the speed is changed, the FSR value will change to reect
the new condition. Each spindle and speed combination has a unique FSR.
TIP: e minimum viscosity measurement range is 10% of the FSR.
TIP: Full Scale Range is the same value as AutoRange.
TIP: e accuracy of viscometer measurement is expressed as a percentage of the Full Scale
Range.
e Set Speed screen include three Hot Keys:
BACK: Return to the Home screen without changing the speed selection.
SELECT: Accept the speed selection and return to the Home screen.
SPEED: Accept the speed selection and move to the Set Spindle screen.
II.7FullScaleRange
e Full Scale Range (FSR) is a calculation of the maximum viscosity value that can be measured by
a spindle and speed combination when used with the specic spring torque of the DV1 Viscometer.
is value represents the measured viscosity which will be displayed when the instrument’s %torque
reading is at 100. e FSR will be displayed during the spindle selection process and the speed
selection process. e FSR value will change as the selected speed or spindle is changed and will be
displayed in the viscosity measurement units selected by the user in the Options Menu (see Section
II.8).
Brookeld recommends that viscosity measurements be made only when the instrument’s %torque
value is between 10 and 100. e FSR represents the maximum value that can be measured (100%
on the Torque scale). e minimum viscosity that can be measured is 10% of the FSR (equivalent
to 10 on the Torque scale).
e accuracy of the Brookeld viscometer is expressed as a percentage of the instrument’s Full Scale
Range. When using the standard LV (61-64) and RV (2-7) spindles, the instrument’s accuracy is
+/-1% of the Full Scale Range (see Section I.4).

Brookfield DV1 Specifications

General

Speed Range	0.3 to 100 rpm
Display	LCD
Number of Speeds	18
Power Supply	100-240 VAC, 50/60 Hz
Viscosity Range	1 to 2, 000, 000 cP
Temperature Measurement	Optional
Accuracy	±1% of full scale range
Repeatability	+/- 0.2%