BROOKFIELD DV-II+ Pro
`
`PROGRAMMABLE VISCOMETER
`
`Operating Instructions
`
`Manual No. M/03-65-C0508
`
`IN THE
`SPECIALISTS
`MEASUREMENT AND
`CONTROL OF VISCOSITY
`
`
`
`
`
`with offices in: Boston • Chicago • London • Stuttgart • Guangzhou
`
`BROOKFIELD ENGINEERING LABORATORIES, INC.
`11 Commerce Boulevard, Middleboro, MA 02346 USA
`TEL 508-946-6200
`or 800-628-8139 (USA excluding MA)
`INTERNET http://www.brookfieldengineering.com
`FAX 508-946-6262
`
` Brookfield Engineering Labs., Inc.
`
`Page 
`
`Manual No. M/03-65-C0508
`
`ALKERMES Exh. 2068
`Luye v. Alkermes
`IPR2016-1096
`
`

`

`TABLE OF CONTENTS
`
`I.
`
`
`
`
`
`
`
`
`INTRODUCTION ......................................................................................................................................... 4
`I.1 Components ................................................................................................................................................................................... 5
`I.2 Utilities .............................................................................................................................................................................................. 7
`I.3 Specifications ................................................................................................................................................................................. 7
`I.4
`Installation ....................................................................................................................................................................................... 8
`I.5 Safety Symbols and Precautions ............................................................................................................................................. 9
`I.6 Key Functions ................................................................................................................................................................................. 9
`I.7 Cleaning .........................................................................................................................................................................................11
`
`II. GETTING STARTED .................................................................................................................................. 
`
`II.1 Autozero .........................................................................................................................................................................................12
`
`II.2 Spindle Selection .......................................................................................................................................................................13
`
`II.3 Speed Selection, Setting, Running ......................................................................................................................................14
`
`II.4 Display Selection ........................................................................................................................................................................15
`
`II.5 Autorange ......................................................................................................................................................................................16
`
`II.6 Out of Range .................................................................................................................................................................................17
`
`II.7 Temperature Display ..................................................................................................................................................................18
`
`II.8 Printing ..........................................................................................................................................................................................10
`
`II.9 External Control Mode ..............................................................................................................................................................20
`
`II.10 Making Viscosity Measurements ..........................................................................................................................................20
`
`II.11 Time Modes for Viscosity Measurement ............................................................................................................................21
`
`III. OPTIONS .................................................................................................................................................... 
`
`III.1 Introduction to OPTIONS .........................................................................................................................................................22
`
`III.2 Setup ................................................................................................................................................................................................24
`
`
`III.2.1 Temperature Display ....................................................................................................................................................25
`
`
`III.2.2 Units of Measurement ..................................................................................................................................................26
`
`
`III.2.3 Motor Speed Set Selection .........................................................................................................................................26
`
`
`III.2.4 Printer Output Port ........................................................................................................................................................28
`
`
`III.2.5 Data Averaging ...............................................................................................................................................................28
`
`III.3 Time Modes....................................................................................................................................................................................29
`
`
`III.3.1 Time to Stop .....................................................................................................................................................................29
`
`
`III.3.2 Time to Torque .................................................................................................................................................................33
`
`
`III.3.3 Print Time Interval ..........................................................................................................................................................34
`
`
`III.3.4 PC Program (On/Off) .....................................................................................................................................................35
`
`
`III.3.5 Download a Program ....................................................................................................................................................36
`
`
`III.3.6 Run a Program .................................................................................................................................................................37
`
`IV. DVLOADER SOFTWARE ........................................................................................................................ 39
`
`IV.1 B.E.V.I.S. Overview .......................................................................................................................................................................39
`
`IV.2 Description of B.E.V.I.S. Commands ......................................................................................................................................40
`
`IV.3 Creating a B.E.V.I.S. Program ...................................................................................................................................................41
`
`IV.4 Downloading a B.E.V.I.S. Program .........................................................................................................................................43
`
`IV.5 Example Programs ......................................................................................................................................................................44
`
`V.
`
`
`
` AUTOMATED DATA GATHERING & ANALYSIS .............................................................................. 46
`V.1 WINGATHER32..............................................................................................................................................................................46
`V.2 RHEOCALC32 ................................................................................................................................................................................48
`
` Brookfield Engineering Labs., Inc.
`
`Page 
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`Manual No. M/03-65-C0508
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`

`

` Appendix A - Cone/Plate Viscometer Set-Up .....................................................................................................................51
` Appendix B - Viscosity Ranges ...............................................................................................................................................55
` Appendix C - Variables in Viscosity Measurements .........................................................................................................58
`Appendix D - Spindle and Model Codes ..............................................................................................................................60
`
` Appendix E - Calibration Procedures ....................................................................................................................................63
`Appendix F - The Brookfield Guardleg .................................................................................................................................68
`
` Appendix G - Speed Sets ...........................................................................................................................................................70
` Appendix H - Communications ...............................................................................................................................................71
` Appendix I - Model S Laboratory Stand .............................................................................................................................74
` Appendix J - DVE-50A Probe Clip ..........................................................................................................................................76
` Appendix K - Fault Diagnosis and Troubleshooting ........................................................................................................77
` Appendix L - Warranty Repair and Service .........................................................................................................................81
`
` Brookfield Engineering Labs., Inc.
`
`Page 3
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`Manual No. M/03-65-C0508
`
`

`

`I.
`
`INTRODUCTION
`
`The Brookfield DV-II+Pro Viscometer measures fluid viscosity at given shear rates. Viscosity
`is a measure of a fluid’s resistance to flow. You will find a detailed description of the science of
`viscosity in the Brookfield publication “More Solutions to Sticky Problems” a copy of which
`was included with your DV-II+Pro.
`
`The DV-II+Pro offers exceptional versatility in modes of control allowing for traditional
`standalone operation, automatic operation through programs downloaded from the PC or with
`complete control by PC using Brookfield Rheocalc32 Software.
` • The DV-II+Pro can be used as a traditional Brookfield viscometer for collection of single
`speed viscosity data through the easy to use keypad; just select the spindle and speed and
`read the value from the display. [see Section II, Getting Started]
` • The Brookfield DVLoader Software can be used to program the DV-II+Pro to control
`all aspects of the test and data collection without the need for the operator to monitor the
`instrument; just start the program and return to the printed test data (printer is optional).
`[see Section IV, DVLoader Software]
` • The Brookfield Rheocalc32 Software will perform all control and data collection func-
`tions of the DV-II+Pro from the PC while also providing a platform for advanced data
`collection and analysis. [see Section II.9, External Control]
`
`In any of these modes of control, the DV-II+Pro will provide the best in viscosity measurement
`and control.
`
`The principal of operation of the DV-II+Pro is to drive a spindle (which is immersed in the
`test fluid) through a calibrated spring. The viscous drag of the fluid against the spindle is
`measured by the spring deflection. Spring deflection is measured with a rotary transducer. The
`measurement range of a DV-II+Pro (in centipoise or milliPascal seconds) is determined by the
`rotational speed of the spindle, the size and shape of the spindle, the container the spindle is
`rotating in, and the full scale torque of the calibrated spring.
`
`There are four basic spring torque series offered by Brookfield:
`
`
`
`Model
`LVDV-II+Pro
`RVDV-II+Pro
`HADV-II+Pro
`HBDV-II+Pro
`
` Spring Torque
`dyne/cm
`
` milli Newton/m
`673.7
`0.0673
`7,187.0
`0.7187
`14,374.0
`1.4374
`57,496.0
`5.7496
`
`The higher the torque calibration, the higher the measurement range. The measurement range
`for each torque calibration may be found in Appendix B.
`
`All units of measurement are displayed according to either the CGS system or the SI system.
`
` 1. Viscosity appears in units of centipoise (shown as “cP”) or milliPascal-seconds (shown as
`“mPa•s”) on the DV-II+Pro Viscometer display.
` 2. Shear Stress appears in units of dynes/square centimeter (“D/cm2”) or Newtons/square
`meter (“N/m2”).
` 3. Shear Rate appears in units of reciprocal seconds (“1/SEC”).
` 4. Torque appears in units of dyne-centimeters or Newton-meters (shown as percent “%” in
`both cases) on the DV-II+Pro Viscometer display.
`
`Note: To change CGS to SI units on the display - see Section III.2.2.
`
` Brookfield Engineering Labs., Inc.
`
`Page 4
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`Manual No. M/03-65-C0508
`
`

`

`The equivalent units of measurement in the SI system are calculated using the following
`conversions:
`
`
`
`Viscosity:
`Shear Stress:
`Torque:
`
`CGS
`SI
`= 1 cP
`1 mPa•s
`1 Newton/m2 = 10 dyne/cm2
`1 Newton/m = 107 dyne/cm
`
`References to viscosity throughout this manual are done in CGS units. The DV-II+Pro
`Viscometer provides equivalent information in SI units.
`
`
`
`I. Components
`
`Please check to be sure that you have received all components, and that there is no damage. If
`you are missing any parts, please notify Brookfield Engineering or your local Brookfield agent
`immediately. Any shipping damage must be reported to the carrier.
`
`Component
`
`Part Number
`
`Quantity
`
`DV-II+Pro Viscometer
`Model S Laboratory Stand
`Spindle Set with Case
` LVDV-II+Pro set of four spindles
` RVDV-II+Pro set of six spindles (#2 - #7)
` HA/HBDV-II+Pro set of six spindles (#2 - #7)
`
`varies
`MODEL S
`varies
`SSL
`SSR
`SSH
`
`1
`1
`1
` or
` or
`
`For Cone/Plate versions: a spindle wrench, one cone spindle and sample cup,
`Part No. CPE-44Y replace the spindle set.
`
`
`
`
`Power Cord
` DVP-65 for 115 or
` DVP-66 for 230
`
`RTD Temperature Probe
`Guard Leg:
`LVDV-II+Pro
`
`RVDV-II+Pro
`
`Carrying Case
`DVLOADER CD ROM
`Cable (DV-II+Pro to computer)
`Operating Manual
`
`
`DVP-65
`DVP-66
`
`DVP-94Y
`
`B-20Y
`B-21Y
`DVE-7Y
`DVLOADER
`DVP-80
`M/03-165
`
`1
`
`1
`1
`
`1
`1
`1
`1
`
` Brookfield Engineering Labs., Inc.
`
`Page 5
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`Manual No. M/03-65-C0508
`
`

`

`COMPONENT DIAGRAM
`
`Shipping
`Cap
`
`Guard Leg
`
`DV-II Pro
`Viscometer
`
`Model S
`Laboratory Stand
`
`Spindle Set
`
`LV Spindle Set
`shown above
`
`Cone/Plate Option
`
`Temperature Probe Option
`
`Wrench
`
`Temperature Probe Clip
`
`Cone Spindle
`
`Sample Cup
`
`Temperature Probe
`
` Brookfield Engineering Labs., Inc.
`
`Page 6
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`Manual No. M/03-65-C0508
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`

`

`
`
`I. Utilities
`
`Input Voltage:
`Input Frequency:
`Power Consumption:
`Power Cord Color Code:
`
`Hot (live)
`Neutral
`Ground (earth)
`
`115 VAC or 230 VAC
`50/60 Hz
`30 VA
`
`United States
`Black
`White
`Green
`
`Outside United States
`Brown
`Blue
`Green/Yellow
`
`Main supply voltage fluctuations are not to exceed ±10% of the nominal supply voltage.
`
`
`
`I.3 Specifications
`
`Speeds:
` Standalone:
`
`
`
`
`
` External (PC Control)
`
`
`
`
`
`
`
`Interleaved:
`Sequential:
`Custom:
`
`LV/RV (18 speeds)
`LV/RV (18 speeds)
`54 speeds, user selectable
`
`.01 - 200 rpm
`0.01 rpm increments from 0.01 to 0.99 rpm
`0.1 rpm increments from 1.0 to 200 rpm
`
`Note: Refer to Appendix F for detailed list of all speeds.
`
`Weight: Gross Weight
`
`Net Weight
`
`Carton Volume
`
`lbs.
`23
`lbs.
`20
`1.65 cu. ft.
`
`10.5 kg.
`9 kg.
`0.05 m3
`
`Temperature Sensing Range:
`
` -100˚C to 300˚C (-148˚F to 572˚F)
`
`Analog Torque Output:
`
` 0 - 1 Volt DC (0 - 100% Torque)
`
`Analog Temperature Output:
`
` 0 - 3.75 Volts DC (-100°C to +275°C)
`
`RS3 Compatible Serial Port for use with an attached printer or PC.
`
`Centronics Compatible Parallel Port for use with an attached printer.
`
`Viscosity Accuracy:
`
`±1.0% of full scale range
`
`Viscosity Repeatability:
`
`±0.2%
`
`Temperature Accuracy:
`
`
`±1°C | -100°C to +149°C
`±2°C | +150°C to +300°C
`
`Operating Environment:
`
`
`0°C to 40°C temperature range (32°F to 104°F)
`20% - 80%R.H.: non-condensing atmosphere
`
` Brookfield Engineering Labs., Inc.
`
`Page 
`
`Manual No. M/03-65-C0508
`
`

`

`Ball Bearing Option:
`If you ordered the ball bearing suspension system with your new instrument please note
`the following:
`
`1) The ball bearing suspension in your Brookfield instrument is noted on the serial tag
`on the back of the head by the letter “B” after the mode.
`
`2) When attaching and detaching the spindle, it is not necessary to lift the coupling
`where the spindle connects to the instrument.
`
`3) The Oscillation Check explained in the Appendix under Fault Diagnosis and
`Troubleshooting does not pertain to this instrument.
`
`Electrical Certifications:
`
`CSA, CE
`
`This product has been certified to the applicable CSA and ANSI/UL Standards, for use in
`Canada and the U.S (cCSAus).
`
`Installation Category II, Polution Degree 2, Altitude 2000m (max).
`
`
`
`
`
`
`
`
`
`I.4
`
`Installation
`
`Note: “IQ, OQ, PQ”, a guideline document for installation, operation and performance
`validation for your DV-II+Pro digital viscometer can be downloaded from our web site www.
`brookfieldengineering.com.
`
` 1) Assemble the Model S Laboratory Stand (refer to assembly instructions in Appendix H).
`
` 2) Put the viscometer on the stand.
` 3) Connect the RTD probe to the socket on the rear panel of the DV-II+Pro.
`
` 4) The Viscometer must be leveled. The level is adjusted using the two leveling screws on
`the base. Adjust so that the bubble level on top of the DV-II+Pro is centered within the
`circle.
`
` Note: Check level periodically during use.
`
` 5) Remove the white shipping cap which secures lower coupling nut on Viscometer to pivot
`cup.
`
` 6) Make sure that the AC power switch at the rear of the DV-II+Pro is in the OFF position.
`Connect the power cord to the socket on the back panel of the instrument and plug it into
`the appropriate AC line.
`
`The AC input voltage and frequency must be within the appropriate range as shown
`on the nameplate of the viscometer.
`
` Note: The DV-II+Pro must be earth grounded to ensure against electronic failure!!
`
` Brookfield Engineering Labs., Inc.
`
`Page 8
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`Manual No. M/03-65-C0508
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`

`

` 7) Turn the power switch to the ON position and allow to warm up for 10 minutes before
`performing autozero.
`
` 8) For Cone/Plate models, refer to Appendix A.
`
` 9) If appropriate, connect interconnecting cable (DVP-80) to serial port for connection of
`DV-II+Pro to PC or printer.
`
` 10) If appropriate, connect interconnecting cable to parallel port for connection of DV-II+Pro
`to printer.
`
` 11) If appropriate, connect interconnecting cable (DVP-96Y) to analog (serial) port for con-
`nection of DV-II+Pro to chart recorder.
`
`
`
`I.5 Safety Symbols and Precautions
`
`BROOKFIELD
`
`VISCOMETER
`
`DV-II+ Pro
`
`MOTOR
`ON/OFF
`
`ESCAPE
`
`OPTIONS
`
`TAB ôö
`
`ENTER
`
`AUTO
`RANGE
`
`SELECT
`SPINDLE
`
`PRINT
`
`£ §
`
`SET
`SPEED
`
`SELECT
`DISPLAY
`
`Figure I-1
`
`Safety Symbols
`The following explains safety symbols which may be
`found in this operating manual.
`
`
`
`
`Indicates hazardous voltages may be present.
`
`
` Refer to the manual for specific warning or
`caution information to avoid personal injury
`or damage to the instrument.
`
` Precautions
`
`If this instrument is used in a manner not
`
`specified by the manufacturer, the protection
`provided by the instrument may be impaired.
`
` This instrument is not intended for use in a
`potentially hazardous environment.
`
`
`
`In case of emergency, turn off the instrument
`and then disconnect the electrical cord from the
`wall outlet.
`
` The user should ensure that the substances
`placed under test do not release poisonous, toxic
`or flammable gases at the temperatures which
`they are subjected to during the testing.
`
`
`
`I.6 Key Functions
`
`Figure I-1 shows the control keys on the face of the DV-II+Pro Viscometer. The following
`describes the function of each key.
`
`£
`
`
`
`UP ARROW
`This key is used to scroll UP (in an increasing value direction) through the available
`speed, spindle and Option menu tables.
`
` Brookfield Engineering Labs., Inc.
`
`Page 9
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`Manual No. M/03-65-C0508
`
`

`

`§
`
`
`
`DOWN ARROW
`This key is used to scroll DOWN (in a decreasing value direction) through the
`available speed, spindle and option menu tables.
`
`MOTOR
`ON/OFF
`ESCAPE
`
`SET
`SPEED
`
`
`
`
`
` MOTOR ON/OFF/ESCAPE
`Turns the motor ON or OFF. ESCAPE exits the Options menu.
`
`SET SPEED
`
`Causes the DV-II+Pro to begin running at the currently selected speed. This function
`works only when the motor is ON. Also used to select custom speeds when in the
`Custom Speed option.
`
`SELECT
`DISPLAY
`
`
`
`
`
`
`
`
` SELECT DISPLAY
`Selects the data parameter to be displayed:
`Viscosity (cP or mPa.s)
`cP
`Shear Stress (dynes/cm2 or Newtons/m2)
`SS
`SR
`Shear Rate (1/sec)
`
`ENTER
`AUTO
`RANGE
`
`
`
` ENTER/AUTO RANGE
`ENTER:
`Used to execute the currently flashing option.
`AUTO RANGE:
`Presents the maximum (100% torque) viscosity attainable using the
`selected spindle at the current viscometer spindle speed.
`
`SELECT
`
`SPINDLE SELECT SPINDLE
`Initiates spindle selection on the first press and then selects the currently scrolled-to
`spindle when pressed a second time.
`
`
`
`
`
`
`PRINT
`
`
`
` PRINT
`Selects printing and non-printing modes when a printer is attached.
`
`
`
`OPTION
`F
`
`TAB
`
`
`
`
`
`
`OPTIONS/TAB
`OPTIONS:
`Presents the Options menu, flashing the last escaped option.
`Toggles between selectable items when indicated, as shown in
`TAB:
`Figure 2.
`
`$
`#
`
` °F(FAHRENHEIT)
` CGS UNITS
`
`fg
`
`fg
`
`Note: Symbol indicating
`the OPTIONS/TAB key
`
`Figure I-2
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Note:
`
`
`Inverted text (black background with white lettering) indicates that the
`information is flashing on the viscometer display.
`
` Brookfield Engineering Labs., Inc.
`
`Page 0
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`Manual No. M/03-65-C0508
`
`

`

`
`
`I. Cleaning
`
`Be sure to remove the spindle from the instrument prior to cleaning. Severe instrument
`damage may result if the spindle is cleaned in place.
`
`Instrument and Keypad:
`
`Clean with a dry, non-abrasive cloth. Do not use solvents
`or cleaners.
`
`Immersed Components (spindles): Spindles are made of stainless steel. Clean with a non-
`abrasive cloth and solvent appropriate for sample mate-
`rial.
`
`Note: When cleaning, take care not to apply excessive force - it may bend the spindles.
`
` Brookfield Engineering Labs., Inc.
`
`Page 
`
`Manual No. M/03-65-C0508
`
`

`

`II. GETTING STARTED
`
` II. Autozero
`
`Before readings may be taken, the Viscometer must be Autozeroed. This action is performed
`each time the power switch is turned on. (Note: If cable DVP-80 is connected for printer or
`computer communication see section II.9.) The display window on the Viscometer will guide
`you through the procedure as follows:
`
`Turn the power switch (located on the rear panel) to the ON position. This will result in
`the screen display shown in Figure II-1 indicating that the DV-II+Pro viscometer is in the
`standalone mode (is not connected to a computer).
`
`BROOKFIELD
`PRO
`
`DV-2+
`VISCOMETER
`
`Figure II-1
`
`After a few seconds, the following screen appears indicating the version of the operating
`firmware (the built in program which controls the instrument) and a two-digit alphanumeric
`code which indicates the Model number (see Table D2 in Appendix D; the code tells the spring
`torque rating or the viscosity measurement range of your viscometer). For most DV-II+Pro
`Viscometers, this information will be either “LV”, “RV” or “HB”:
`
`BROOKFIELD
`RV
`
`DV-2+
`V6.3
`
`Figure II-2
`
`No key press is required at this point. After a short time, the display will clear and the
`following will be displayed:
`
`REMOVE SPINDLE
`PRESS ANY KEY
`
`Figure II-3
`
`After removing the spindle and pressing any key, the DV-II+Pro begins its Autozero. The
`screen will flash “Autozeroing.”
`
`After approximately 15 seconds, the display shows the screen in Figure II-4:
`
`REPLACE SPINDLE
`PRESS ANY KEY
`
`Figure II-4
`
` Brookfield Engineering Labs., Inc.
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`Manual No. M/03-65-C0508
`
`

`

`Pressing any key at this point results in the display of the DV-II+Pro default screen:
`
`CP 0.0
`OFFRPM
`
`20.1C
`% 0.0
`
`Figure II-5
`
`The display will vary depending upon the selection of temperature (°F or °C) and units of viscosity
`(cP or mPa•s).
`
`II.
`
`SELECT
`
`SPINDLE Spindle Selection
`
`LVDV-II+Pro Viscometers are provided with a set of four spindles and a narrow guardleg; RVDV-
`II+Pro Viscometers come with a set of six spindles and a wider guardleg; HADV-II+Pro and HBDV-
`II+Pro Viscometers come with a set of six spindles and no guardleg. (See Appendix E for more
`information on the guardleg.)
`
`The spindles are attached to the viscometer by screwing them onto the lower shaft. Note that the
`spindles have a left-hand thread. The lower shaft should be secured and slightly lifted with one
`hand while screwing the spindle to the left. The face of the spindle nut and the matching surface
`on the lower shaft should be smooth and clean to prevent eccentric rotation of the spindle. Spindles
`can be identified by the number on the side of the spindle coupling nut.
`
`The DV-II+Pro must have a Spindle Entry Code number to calculate Viscosity, Shear Rate and Shear
`Stress values. The DV-II+Pro memory contains parameters for all standard Brookfield spindles
`including custom spindles and the two digit entry code for each spindle (the complete list of entry
`codes may be found in Appendix D).
`
`Note: The DV-II+Pro will remember the Spindle Entry Code which was in use when the
`power was turned off.
`
`Pressing the SELECT SPINDLE key will display the current selected spindle code instead of temperature
`and cause the character S to begin to blink . It will blink for about three seconds. If the UP or DOWN
`ARROW keys are pressed (while S is blinking) the two character spindle value to the right of the
`S character will begin to change (in either an increasing or decreasing direction depending upon
`which ARROW key is pressed) for each press of the key. If the ARROW key is pressed and held, the
`display will scroll through the spindle codes for as long as the ARROW key is depressed. When it
`reaches the last item in the list (either at the top or bottom of the list) the spindle code displayed
`will “roll-over” to either the first or last spindle code and the scroll action will continue.
`
`
`
`
`
`
`
`
`
`
`
`
`
` When the desired spindle code is displayed, release the ARROW key to halt further scrolling. Press
`the SELECT SPINDLE key once again. This will cause the S character to cease blinking and the new
`spindle code will be accepted for use in viscometer calculations.
`
`Note: You have approximately three seconds in which to press the SELECT SPINDLE key
`before the blinking stops. If you fail to press the SELECT SPINDLE key before the
`blinking stops you will have to repeat the above steps and re-select the desired
`spindle.
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`The DV-II+Pro will begin to calculate using the new spindle parameters as soon as the SELECT
`SPINDLE key is pressed the second time.
`
`
`
`
`
`Note: The number 99 spindle is for use with special spindles when using Brookfield’s
`RHEOCALC3 computer program. Refer to the RHEOCALC3 operator manual for
`further information on using “99” spindles.
`
`
`
`The DV-II+Pro may also be programmed at Brookfield Engineering for “special” user spindles.
`These “special” spindles will appear on the spindle scroll list starting with designation “AA”
`and continuing through “AZ”. Contact Brookfield Engineering regarding your needs for special
`spindles.
`
`II.3
`
`SET
`
`SPEED Speed Selection, Setting, Running
`
` There are 54 speeds programmed into the DV-II+Pro. These speeds correspond to the standard
`LVT, RVT, HAT and HBT dial models (18 possible speeds altogether) plus 36 additional speeds.
`
`
`
`
`
`The DV-II+Pro comes with the Sequential Speed Set already selected (see Appendix F). The speed
`set will start at speed 0.0. It will then scroll up through the LV speeds, pass through speed 0.0 again,
`and then scroll up through the RV speeds, pass through speed 0.0 again and then repeat the above
`sequence.
`
`The DV-II+Pro can also be configured by the operator to interleave the LV and RV speeds. See
`Section III.2.3 on Setup for a description of how to install the Interleave Speed Set.
`
` A complete list of speed sets and custom speeds is included in Appendix F. The DV-II+Pro can be
`programmed to select up to 19 of the 54 speeds for use at any one time. Speed 0.0 is the 20th speed
`and is automatically included. See Section III. 2.3.2 on Setup for a description of how to install a
`Custom Speed Set.
`
`To select a Viscometer speed first press either the UP or DOWN arrow keys which will cause the area
`to the right of RPM to display the currently selected speed. Figure II-6 shows the DV-II+Pro is
`operating at 6.0 RPM, and the current selected speed is 6.0 RPM.
`
`CP 123.4
`6.0RPM6.0
`
`20.1C
`% 15.6
`
`Figure II-6
`
`If the ARROW key is pressed just once and then released, the characters “RPM” will blink for three
`seconds, then will cease blinking resulting in no change to the speed entry.
`
`Note: The speed selection process remembers the last value of scrolled-to speed so that the
`next time you initiate a speed change (by pressing an ARROW key), the DV-II+Pro will
`begin its scroll display from the last entered value.
`
`The last-scrolled-to speed does not necessarily have to be the same as the speed at which the DV-
`
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`Manual No. M/03-65-C0508
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`II+Pro is currently running. The user may operate at a given speed and pre-set the DV-II+Pro to
`the next desired speed before that speed will be used. For example, if the DV-II+Pro is currently
`running at 6.0 RPM and was previously scrolled to 12 RPM, a single press of either ARROW key
`would result in the Figure II-7 screen display:
`
`cP 123.4
`6.0RPM12
`
`20.1C
`% 15.6
`
`Figure II-7
`
`
`
`
`
`
`
`Pressing the SET SPEED key would cause the DV-II+Pro to begin running at 12 RPM.
`
`If the user did not press the SET SPEED key, the DV-II+Pro would continue to run at its current speed
`of 6 RPM. In fact, you may scroll to a new speed (12 RPM in this example) and press the SET SPEED
`key at any future time (without further pressing an ARROW key) to immediately cause the DV-II+Pro
`to run at the new speed. Pressing the ARROW key at any time reminds the operator of what was
`selected for the next speed.
`
`If an ARROW key is pressed and held the DV-II+Pro will scroll up (or down) through the speed table.
`When it reaches the last speed in the list (either at the top or bottom of the list) the speed displayed
`will “roll-over” to either the first or last speed in the table and the scroll action will continue.
`
` When the required speed is displayed, release the ARROW key to halt further scrolling. You have
`approximately two seconds (before the blinking RPM stops) in which to press the SET SPEED key to
`immediately begin rotation at the new speed.
`
`
`
`
`
`
`
`Pressing the MOTOR ON/OFF/ESCAPE key stops the Viscometer spindle rotation. Pressing this key sets
`the DV-II+Pro to 0.0 RPM and causes the screen display to change as shown in Figure II-8:
`
`cP 0.0
`OFFRPM
`
`20.1C
`% 0.0
`
`Figure II-8
`
`Pre