Brookfield DV1 User Manual

Brookeld Engineering Laboratories, Inc. Page 14 Manual No. M14-023
II. GETTING STARTED
II.1 Power Up
e DV1 Viscometer will go through a Power Up sequence when the power is turned on. e
viscometer will present a blue screen for approximately 4 seconds and then the About Screen for
5 seconds. e About Screen is shown below and includes several critical parameters about the
viscometer including: viscometer torque (LV, RV, HA, HB, or other), and the rmware version number.
Figure II-1
e About Screen can also be accessed through the Options Menu (see Section II.8)
e DV1 Viscometer will automatically transition from the About Screen to the AutoZero Screen.
TIP: When contacting Brookeld or your authorized Brookeld dealer for technical support
or repair services, please record the information on the About Screen and the serial
number (found on the serial tag located on the back of the instrument head) in any
correspondence or shipping paperwork.
II.2 AutoZero
e DV1 Viscometer must perform an AutoZero prior to making viscosity measurements. is
process sets the zero reading for the measurement system. e AutoZero will be performed every
time the instrument is turned on. It is not necessary to perform an AutoZero before each test.
Proper AutoZero function requires that the viscometer be level (see Section I.5) and that the spindle
be removed from the coupling sha. Additionally, any spindle coupling or extension links used
with accessory devices should be removed from the coupling sha. e DV1 display presents a
reminder screen to remove the spindle. e operator must press the NEXT hot key (see Section
II.3) to initiate the AutoZero. Upon completion, the DV1 presents a reminder to re-attach the
spindle. e operator must press the NEXT hot key to proceed.
TIP: Do not touch the viscometer during the AutoZero process to ensure the best zero value.
TIP: e AutoZero sets the zero point of the viscometer range. A failure to properly level
the viscometer or to remove the spindle may aect the zero value and all measurement
results.

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%