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Brookfield DV-I Prime User Manual

Page 12

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Brookfield Engineering Laboratories, Inc.

Page 12

Manual No. M/07-022-D0613

I.7 Key Functions

Figure I-3 shows the control keys on the face of the DV-I PRIME

Viscometer. The following describes each key’s function.

UP ARROW

This key is used to scroll UP (in an increasing value

direction) through the available speed or spindle tables.

DOWN ARROW

This key is used to scroll DOWN (in a decreasing value

direction) through the available speed or spindle tables.

Tp

Note:

Pressing and holding the DOWN ARROW

key during the POWER ON will change the

temperature display between °C and °F.


MOTOR

ON/OFF

MOTOR ON/OFF

Turns the motor ON or OFF.

SET SPEED

Causes the DV-I

PRIME

to begin running at the currently selected speed. Used for Time to

Torque and Timed Stop tests. (see Section II.9 - Timed Modes for Viscosity Measurement.)

AUTO RANGE/ENTER

Auto range presents the maximum (100% torque) viscosity attainable (known as Full Scale

Range) for the spindle/speed selected. This feature is functional when the motor is running.

Viscometer accuracy is 1% of the maximum (100% torque) viscosity value; minimum

recommended viscosity range is 10% of the maximum viscosity value.

Note:

Pressing and holding the

AUTO RANGE

key during power on will enable the

viscosity display to be changed between CGS and SI units (see Section II.5).

ENTER

Use to enter parameters in the Timed Stop Mode(see Section II.9.2).


TIMED OPTION

Used to select timed modes for viscosity measurement (see Section II.9), and to select temperature

offset mode (see Section II.9.4).

SELECT SPINDLE

This initiates spindle selection on the first press and then selects the currently scrolled-to

spindle when pressed a second time. Used for Time to Torque and Timed Stop tests (see

Section II.9 - Timed Modes for Viscosity Measurement).

PRINT

Initiates print modes (see Section II.10.)

Figure I-3