Brookfield RVDV-II+Pro, LVDV-II+Pro, HBDV-II+Pro, HADV-II+Pro Operating Instructions Manual

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Page 1

SPECIALISTS IN THE

MEAS UREMENT AN D

CONTROL OF VISCOSITY

TEL 508-946-6200 FAX 508-946-6262

or 800-628-8139 (USA e xcluding MA) I

NTERNET

http://www.brookeldengineering.com

BROOKFIELD ENGINEERING LABORATORIES, INC.

11 Commerce Boulevard, M iddleboro, M A 02346 USA

with oces in :

Boston • Chicago • London • Stuttgart • Guangzhou

BROOKFIELD DV-II+Pro

Viscometer

Operating Instructions

Manual No. M/03-165 D0410

Brookeld Engineering Labs., Inc. Page 1 Manual No. M/03-165-D0410

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TABLE OF CONTENTS

I. INTRODUCTION ......................................................................................................................................... 4

I.1 Components ................................................................................................................................................................................... 5

I.2 Utilities ..............................................................................................................................................................................................7

I.3 Specications .................................................................................................................................................................................7

I.4 Installation .......................................................................................................................................................................................8

I.5 Safety Symbols and Precautions ............................................................................................................................................. 9

I.6 Key Functions ...............................................................................................................................................................................10

I.7 Cleaning .........................................................................................................................................................................................11

II. GETTING STARTED .................................................................................................................................. 12

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 .................................................................................................................................................................................

II.7 Temperature Display ..................................................................................................................................................................18

II.8 Printing ..........................................................................................................................................................................................19

II.9 External Control Mode ..............................................................................................................................................................

II.10 Making Viscosity Measurements ..........................................................................................................................................20

II.11 Time Modes for Viscosity Measurement ............................................................................................................................21

III. OPTIONS .................................................................................................................................................... 22

III.1 Introduction to OPTIONS .........................................................................................................................................................22

III.2 Setup ................................................................................................................................................................................................

III.2.1 Temperature Display ....................................................................................................................................................25

III.2.2 Units of Measurement ..................................................................................................................................................26

III.2.3 Motor Speed Set Selection .........................................................................................................................................

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 .................................................................................................................................................................32

III.3.3 Print Time Interval ..........................................................................................................................................................34

III.3.4 PC Program (On/O ) .....................................................................................................................................................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

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Appendix A - Cone/Plate Viscometer Set-Up .....................................................................................................................50

Appendix B - Viscosity Ranges ...............................................................................................................................................55

Appendix C - Variables in Viscosity Measurements .........................................................................................................61

Appendix D - Spindle and Model Codes ..............................................................................................................................63

Appendix E - Calibration Procedures ....................................................................................................................................66

Appendix F - The Brookeld Guardleg .................................................................................................................................73

Appendix G - Speed Sets ...........................................................................................................................................................75

Appendix H - Communications ...............................................................................................................................................76

Appendix I - Model S Laboratory Stand .............................................................................................................................79

Appendix J - DVE-50A Probe Clip ..........................................................................................................................................81

Appendix K - Fault Diagnosis and Troubleshooting ........................................................................................................82

Appendix L - Instrument Dimensions .................................................................................................................................86

Appendix M - Warranty Repair and Service .........................................................................................................................87

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I. INTRODUCTION

The Brookeld DV-II+Pro Viscometer measures uid viscosity at given shear rates. Viscosity is a measure of a uid’s resistance to ow. You will nd a detailed description of the science of viscosity in the Brookeld 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 Brookeld Rheocalc32 Software.

• The DV-II+Pro can be used as a traditional Brookeld 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 Brookeld 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 Brookeld 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 uid) through a calibrated spring. The viscous drag of the uid against the spindle is measured by the spring deection. Spring deection 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 Brookeld:

Spring Torque

Model dyne/cm milli Newton/m

LVDV-II+Pro 673.7 0.0673 RVDV-II+Pro 7,187.0 0.7187 HADV-II+Pro 14,374.0 1.4374 HBDV-II+Pro 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/cm meter (“N/m

”).

”) or Newtons/square

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.

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The equivalent units of measurement in the SI system are calculated using the following conversions:

SI CGS

Viscosity: 1 mPa•s = 1 cP

Shear Stress: 1 Newton/m

= 10 dyne/cm

Torque: 1 Newton/m = 10

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.1 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 Brookeld Engineering or your local Brookeld agent immediately. Any shipping damage must be reported to the carrier.

Component Part Number Quantity

DV-II+Pro Viscometer varies 1

Model S Laboratory Stand MODEL S 1

Spindle Set with Case varies 1 LVDV-II+Pro set of four spindles SSL or RVDV-II+Pro set of six spindles (#2 - #7) SSR or HA/HBDV-II+Pro set of six spindles (#2 - #7) SSH

For Cone/Plate versions: a spindle wrench, one cone spindle and sample cup,

Part No. CPE-44Y replace the spindle set.

Power Cord 1 DVP-65 for 115 or DVP-65 DVP-66 for 230 DVP-66

RTD Temperature Probe DVP-94Y 1

Guard Leg: 1 LVDV-II+Pro B-20Y RVDV-II+Pro B-21Y

Carrying Case DVE-7Y 1

DVLOADER CD ROM DVLOADER 1

Cable (DV-II+Pro to computer) DVP-80 1

Operating Manual M/03-165 1

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COMPONENT DIAGRAM

Cone/Plate Optio

Temperature Probe Optio

Spindle Set

Cone Spindle

Wrench

Sample Cup

Temperature Probe Clip

Temperature Probe

Shipping Cap

DV-II Pro Viscometer

Model S Laboratory Stand

Guard Leg

LV Spindle Set shown above

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I.2 Utilities

Input Voltage: 115 VAC or 230 VAC Input Frequency: 50/60 Hz Power Consumption: 30 VA

Power Cord Color Code:

United States Outside United States

Hot (live) Black Brown

Neutral White Blue

Ground (earth) Green Green/Yellow

Main supply voltage uctuations are not to exceed ±10% of the nominal supply voltage.

I.3 Specications

Speeds: Choice of 3 options.

Instrument has “Interleaved” speeds when manufactured.

Standalone Interleaved: LV/RV (18 speeds) 8 LV speeds followed by

Sequential: LV/RV (18 speeds) 8 LV speeds and 10 RV

Custom: 54 speeds, user selectable

10 RV speeds

speeds arranged in sequential order from lowest 0.3 rpm to highest 100 rpm.

External (PC Control) .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 G for detailed list of all speeds.

Weight: Gross Weight 23 lbs. 10.5 kg.

Net Weight 20 lbs. 9 kg. Carton Volume 1.65 cu. ft. 0.05 m

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)

RS232 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

The use of accessory items will have an effect on the measurement accuracy. See Appendix B.

Viscosity Repeatability: ±0.2%

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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

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 Brookeld 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 Certications:

Conforms to CE Standards:

BSEN 61326: Electrical equipment for measurement, control and laboratory use -

EMC requirements

BSEN 61010-1: Safety requirements for electrical equipment, for measurement, control

and laboratory use

Notice to customers:

This symbol indicates that this product is to be recycled at an appropriate collection center.

Users within the European Union:

Please contact your dealer or the local authorities in charge of waste management on how to dispose of this product properly. All Brookeld ofces and our network of representatives and dealers can be found on our website: www.brookeldengineering.com

Users outside of the European Union:

Please dispose of this product according to your local laws.

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. brookeldengineering.com.

1) Assemble the Model S Laboratory Stand (refer to assembly instructions in Appendix I).

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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!!

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

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 specic warning or caution information to avoid personal injury or damage to the instrument.

Precautions

If this instrument is used in a manner not specied by the manufacturer, the protection provided by the instrument may be impaired.

This instrument is not intended for use in a potentially hazardous environment.

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In case of emergency, turn off the instrument and then disconnect the electrical

DV- II+ P ro

VI SC OME TE R

B ROOKFIELD

SELEC T

SPIND LE

SELEC T

DISPL AY

SET

SPEED

ENTER

AUTO

RANGE

MOTOR ON/OF F

ESCAP E

OPTIO NS

TAB

cord from the wall outlet.

The user should ensure that the substances placed under test do not release poisonous, toxic or ammable 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.

This key is used to scroll UP (in an increasing

UP ARROW

value direction) through the available speed, spindle and Option menu tables.

This key is used to scroll DOWN (in a

DOWN ARROW

decreasing value direction) through the available speed, spindle and option menu tables.

MOTOR ON/OFF

MOTOR ON/OFF/ESCAPE

ESCAPE

Turns the motor ON or OFF. ESCAPE exits the

Options menu.

SET

SPEED

Causes the DV-II+Pro to begin running at the

SET SPEED

currently selected speed. This function works only when the motor is ON. Also used to select custom speeds when in the Custom Speed

option.

Figure I-1

Selects the data parameter to be displayed:

SELECT

SELECT DISPLAY

DISPLAY

cP Viscosity (cP or mPa•s)

SS Shear Stress (dynes/cm2 or Newtons/m2)

ENTER

AUTO

ENTER/AUTO RANGE

RANGE

SR Shear Rate (1/sec)

ENTER: Used to execute the currently ashing option. AUTO RANGE: Presents the maximum (100% torque) viscosity attainable using the

Brookeld Engineering Labs., Inc. Page 10 Manual No. M/03-165-D0410

selected spindle at the current viscometer spindle speed.

Page 11

SELECT

SPINDLE

SELECT SPINDLE

Initiates spindle selection on the rst press and then selects the currently scrolled-to

spindle when pressed a second time.

Selects printing and non-printing modes when a printer is attached.

OPTIONS: Presents the Options menu, ashing the last escaped option.

OPTION

TAB

OPTIONS/TAB

TAB: Toggles between selectable items when indicated, as shown in

Figure I-2.

Note: Symbol indicating

the OPTIONS/TAB key

°F(FAHRENHEIT) $

g f

CGS UNITS #

Figure I-2

Note: Inverted text (black background with white lettering) indicates that the

information is ashing on the viscometer display.

I.7 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.

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II. GETTING STARTED

II.1 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 DV-2+ PRO VISCOMETER

Figure II-1

After a few seconds, the following screen appears indicating the version of the operating rmware (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 DV-2+ RV 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 ash “Autozeroing.”

After approximately 15 seconds, the display shows the screen in Figure II-4:

REPLACE SPINDLE PRESS ANY KEY

Brookeld Engineering Labs., Inc. Page 12 Manual No. M/03-165-D0410

Figure II-4

Page 13

Pressing any key at this point results in the display of the DV-II+Pro default screen:

CP 0.0 20.1C OFFRPM % 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.2

SELECT

Spindle Selection

SPINDLE

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; HADVII+Pro and HBDV-II+Pro Viscometers come with a set of six spindles and no guardleg. (See Appendix F 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 identied 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 Brookeld 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 temporarily display the current selected spindle code in place 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 rst 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. After 3 seconds the current spindle code will be replaced by the temperature display.

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 Brookeld’s

RHEOCALC32 computer program. Refer to the RHEOCALC32 operator manual for further information on using “99” spindles.

The DV-II+Pro may also be programmed at Brookeld Engineering for “special” user spindles. These “special” spindles will appear on the spindle scroll list starting with designation “AA” and continuing through “AZ”. Contact Brookeld Engineering regarding your needs for special spindles.

II.3

SET

Speed Selection, Setting, Running

SPEED

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 G). 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 congured 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 G. 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 rst 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 DVII+Pro is operating at 6.0 RPM, and the current selected speed is 6.0 RPM.

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-II+Pro is currently running. The user may operate at a given speed and pre-set the DVII+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

Brookeld Engineering Labs., Inc. Page 14 Manual No. M/03-165-D0410

CP 123.4 20.1C

6.0RPM6.0 % 15.6

Figure II-6

Page 15

ARROW key would result in the Figure II-7 screen display:

cP 123.4 20.1C

6.0RPM12 % 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 rst 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 20.1C OFFRPM % 0.0

Figure II-8

Pressing the MOTOR ON/OFF/ESCAPE key again immediately starts the DV-II+Pro running at the last scrolled-to-speed. If you had been running at 12 RPM, pressed MOTOR ON/OFF/ ESCAPE and then re-started the DV-II+Pro by pressing MOTOR ON/OFF/ESCAPE once again, you would again be running at 12 RPM. However, if while the motor was off you had scrolled to a new speed of 0.5 RPM, pressing the MOTOR ON/OFF/ESCAPE key would start the DV-II+Pro running at 0.5 RPM.

Note: During both spindle or speed selection and scrolling operations, the DV-II+Pro

will continue to calculate and display Viscometer data as selected.

II.4

SELECT

Display Selection

DISPLAY

Viscosity (displayed in units of cP or mPa•s), Shear Stress and Shear Rate are displayed on the left

side of the top line. You may “step” through the three display options by pressing the SELECT DISPLAY key. For example, the DV-II+Pro is currently displaying Viscosity in Figure II-9:

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Page 16

cP 123e3 20.1C

6.0RPM % 15.6

Figure II-9

If the viscosity value exceeds 99,999 scientic notation is used. In Figure II-9, the viscosity value is 123,000 cP.

The rst press of the SELECT DISPLAY key would display Shear Stress (SS) in Dynes/cm2 (or Newtons/m2), see Figure II-10:

SS 29.0 20.1C

6.0RPM % 15.6

Figure II-10

If the shear stress value exceeds 99,999, scientic notation is used.

The next press of the SELECT DISPLAY key would display Shear Rate (SR) in 1/Sec (Figure II-11).

SR 40.0 20.1C

6.0RPM % 15.6

Figure II-11

One more press of the SELECT DISPLAY key would result in a return to the viscosity screen, as shown in Figure II-9.

Notes:

1. You may step through the display at any time. This will not interrupt any Viscometer

calculations that are in progress.

2. Display of shear rate and shear stress requires selection of appropriate spindles. Otherwise, values displayed will be zero (0).

Units of Measurement

The DV-II+Pro Viscometer can be congured using the SETUP option (Section III.2.2) to

display/print in either the CGS or SI system of units.

ENTER

AUTO

RANGE

Autorange

II.5

The ENTER/AUTO RANGE key functions as auto range and allows you to determine the maximum calculated viscosity (full scale reading) possible with the current spindle/speed setting only when in the default screen. Pressing the key at any time will cause the current viscosity display to change and show that maximum viscosity. The screen area displaying % (torque) will now display a ashing “%100.0” to indicate this special condition. This maximum viscosity and ashing

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%100.0 value will be displayed for as long as the ENTER/AUTO RANGE key is depressed. Figure II-12 shows the AUTO RANGE function for the situation where the No. 1 LV spindle is rotating at 60 rpm. The full scale range is 100.0 cP (or 100.0 mPa

s).

cP 100.0 S61 60 RPM % 100

Figure II-12

Notes:

1. If the RPM is 0.0, the maximum viscosity displayed will be 0.0 cP (or 0.0 mPa.s).

2. While the Viscometer is in the Auto Range mode, any data sent to an attached printer or computer reects the displayed values (i.e. Auto Range values).

3. This function is only available when in the default screen.

II.6 Out of Range

The DV-II+Pro gives indications for out-of-range operation. When % (Torque) readings exceed

100% (over-range), the display changes to that shown in Figure II-13; EEEE will also appear in the display for % and viscosity or shear stress:

cP EEEE 20.1C 10 RPM % EEEE

Figure II-13

You must change either speed or spindle to correct this condition. If you operate at spindle speeds that produce % (Torque) below 10.0 %, the DV-II+Pro ashes the % (Torque), cP (Viscosity), SS (Shear Stress) and SR (Shear Rate) as shown in Figure II-14:

cP 12.4 20.1C 10 RPM % 8.2

Figure II-14

Negative % (Torque) will be displayed as shown in Figure II-15:

cP ---- 20.1C 10 RPM % -2.2

Figure II-15

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Figure II-16 is an example of the printed output of each of the above conditions.

Normal Operation:

RPM=50 M=RV S=29 %=51.4 cP=10280 D/CM2=1285 1/SEC=12.3 T=20.1C Z00:30

Over-Range Operation (>100% torque) (see Fig. 15):

RPM=50 M=RV S=29 %=EEEE cP=EEEE D/CM2=EEEE 1/SEC=12.3 T=20.1C Z00:30

Under-Range Operation (<10% torque) (see Fig. 16):

?RPM=50 M=RV S=29 %=5.2 cP=1040 D/CM2=130 1/SEC=12.3 T=20.1C Z00:30

Negative Torque Operation (see Fig. 17):

RPM=50 M=RV S=29 %=-0.1 cP=---- D/CM2=---- 1/SEC=12.3 T=20.1C Z00:30

M = Torque Range T = Temperature Z = Time

Figure II-16

II.7 Temperature Display

The DV-II+Pro displays the temperature measured by its RTD temperature probe. Temperature

may be displayed in either ˚C (Centigrade) or ˚F (Fahrenheit) units, depending upon selection from the Options menu. As received, the default temperature display will be in ˚C (Centigrade) units as shown in the Figure II-17:

CP 123.4 20.1C 10 RPM % 19.7

Figure II-17

If you turn on the DV-II+Pro with the temperature probe disconnected, or remove the temperature

probe at any point after power-up, the display will indicate “- - - -C”. The four “dashes” indicate the absence of the probe. If you were displaying temperature in Fahrenheit units the C would be replaced by an F. Accuracy of temperature measurement for the DV-II+Pro is shown in Table 1.

Table 1

Temperature Accuracies for

DV-II+Pro Viscometer

Temperature Range Temperature Accuracy

-100°C to +149°C ±1.0°C

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+150°C to +300°C ±2.0°C

Page 19

II.8

For the case of CGS units with non-exponential results:

and CGS units with exponential results.

Similarly, for SI units with non-exponential results.

and SI units with exponential results.

M = Torque T = Temperature Z = Time

1 10 20 30 40 50 60 70 80

RPM=XXX M=XXXXX S=XX %=XXX.X cP=XXXXX D/CM2=XXXXX 1/SEC=XXXXX T=XX.XC ZXX=XX

RPM=XXX M=XXXXX S=XX %=XXX.X cP=XXXeX D/CM2=XXXeX 1/SEC=XXXXX T=XX.XC ZXX=XX

1 10 20 30 40 50 60 70 80

RPM=XXX M=XXXXX S=XX %=XXX.X mPas=XXXXX N/M2=XXXXX 1/SEC=XXXXX T=XX.XC ZXX=XX

1 10 20 30 40 50 60 70 80

RPM=XXX M=XXXXX S=XX %=XXX.X mPas=XXXeX N/M2=XXXeX 1/SEC=XXXXX T=XX.XC ZXX=XX

Printing

The DV-II

+Pro will print data to an attached Serial (RS232) or Parallel (centronics) printer. The

printer must be attached to the appropriate rear panel output connector. See Appendix G for conguration and connection requirements.

Data may be printed in two ways:

1. Pressing the

PRINT key once (for less than three (3) seconds) will result in the printing of one

standard print line.

2. If the

PRINT key is pressed and held for more than three (3) seconds, the DV-II+Pro will then

begin continuous printer output at a print rate interval selected via the Options menu (see Section III.4). The display will show a ashing P in front of the % sign. See Figure II-18.

cP 123.4 20.1C 10 RPM P% 19.7

Figure II-18

To stop continuous printing, press the PRINT key for one (1) second. The ashing P will

disappear on the viscometer display.

Figure II-19 is an example of the print strings for CGS and SI units.

When printing via the parallel port, please note that if a printer is not attached to the viscometer,

the following screen appears:

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Figure II-19

PRINTERERROR

CHECKCONNECTION

Figure II-20

Page 20

II.9 External Control Mode

The DV-II+Pro Viscometer can be used in conjunction with Brookeld software, Rheocalc32

(V2.4 or higher). Through Rheocalc32, all viscometer functions are controlled by the computer. The DV-II+Pro must be set to the external control mode to allow for proper communication with Rheocalc32. To congure the external control mode, connect cable DVP-80 to the serial port on the DV-II+Pro before turning on the DV-II+Pro. With the DVP-80 cable in place, the DV-II+Pro will present the screen shown in Figure II-21 when it is turned on. If external control is selected, the DV-II+Pro will display Figure II-22 and only accept control commands from Rheocalc32 software.

hEXTERNAL MODE iSTANDALONE MODE

Figure II-21

V6.3 RV EXTERNAL MODE

Figure II-22

The DV-II+Pro may be set to stand alone mode by turning it OFF and ON again and selecting

“Stand Alone” or by removing the DVP-80 cable prior to turning the DV-II+Pro on.

Note: The DV-II+Pro cannot communicate with DVLOADER software in the external

control mode. Choose “Stand Alone” when presented with Figure II-21 if you want to use DVLOADER.

For information on controlling the DV-II+Pro from Rheocalc32 software, check the HELP menu within Rheocalc32.

II.10 Making Viscosity Measurements

The following general procedure is used for making viscosity measurements. Brookeld

recommends the use of a 600 ml Low Form Grifn beaker (Brookeld Part No. BKR-600ml) when using LV/RV/HA/HB spindles.

1. Mount the guardleg on the DV-II+Pro

Viscometer (LV and RV series) and insert into the

container.

2. Insert and center spindle in the test material until the uid’s level is at the immersion groove on the spindle’s shaft. With a disc-type spindle, it is necessary to tilt the spindle slightly while immersing to avoid trapping air bubbles on its surface. Attach the spindle to the lower shaft of the viscometer. Lift the shaft slightly, holding it rmly with one hand while screwing the spindle on with the other (note left-hand thread). Avoid putting side thrust on the shaft. Verify the proper spindle immersion depth and that the viscometer is level.

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3. The process of selecting a spindle and speed for an unknown uid is normally trial and error. An

appropriate selection will result in measurements made between 10-100 on the instrument % torque scale.

Two general rules will help in the trial and error process.

1) Viscosity range is inversely proportional to the size of the spindle.

2) Viscosity range is inversely proportional to the rotational speed.

To measure high viscosity, choose a small spindle and/or a slow speed. If the chosen spindle/

speed results in a reading above 100%, then reduce the speed or choose a smaller spindle.

Experimentation may reveal that several spindle/speed combinations will produce satisfac

tory results between 10-100%. When this circumstance occurs, any of the spindles may be selected.

Non-Newtonian uid behavior can result in the measured viscosity changing if the spindle

and/or speed is changed. See our publication, “More Solutions to Sticky Problems,” for more detail.

Turn on motor.

Allow time for the indicated reading to stabilize. The time required for stabilization will depend

on the speed at which the Viscometer is running and the characteristics of the sample uid. For maximum accuracy, readings below 10% should be avoided.

Record values.

4. Press the

MOTOR ON/OFF/ESCAPE key and turn the motor “OFF” when changing a spindle or

changing samples. Remove spindle before cleaning.

5. Interpretation of results and the instrument’s use with non-Newtonian and thixotropic materials is discussed in the booklet, “More Solutions to Sticky Problems”, and in Appendix C, Variables in Viscosity Measurements.

II.11 Time Modes for Viscosity Measurement

The Time Modes

allow the viscometer user to implement the unattended Time to Stop and Time to Torque capabilities of the DV-II+Pro Viscometer. These features will allow the user to set up the viscometer (i.e. select spindle and speed) and then record readings for a xed period of time (Time to Stop) or until a set torque value is attained (Time to Torque). When timing begins, a message will be displayed showing time remaining (or time elapsed) and the appropriate display item (viscosity or torque) will be updated continuously during the event. Upon completion, the viscometer will stop and display a screen stating that the test is complete and will also display the nal recorded value for the viscosity in the rst case, or the time in minutes and seconds to reach the torque limit in the second case. Pressing the UP or DOWN ARROW keys will allow additional viscometer data to be examined. Pressing any other key (except the PRINT or ENTER/AUTORANGE key) will bring the user back to the default (normal) viscometer display with the motor OFF. Refer to the Time Modes in Section III.3.

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III. OPTIONS

III.1

OPTION

TAB

Introduction to OPTIONS

The OPTIONS/TAB key provides access to the conguration (Setup) of the DV-II+Pro Viscometer as

well as special functions that can enhance the user’s ability to make viscosity measurements.

The Options menu, shown in Table 1, gives a complete picture of the various conguration

choices and special functions.

Quick References to Options

Table 2

Options Menu

SETUP:

Temperature — °F or °C Units — CGS or SI * Speed Sets — Sequential, Interleave, Custom Printer Port — Serial (RS232) or Parallel Data Averaging — Display Only

TIME TO STOP

* TIME TO TORQUE

SET PRINT TIME:

Set the Printing Time

PC PROG (ON/OFF):

Enables/Disables Communication of Serial (RS232) Port

* DOWNLOAD A PROGRAM:

Link to PC to Receive a B.E.V.I.S. Program

(B.E.V.I.S. = Brookeld Engineering Viscometer Instruction Set)

* RUN A PROGRAM:

Execute a B.E.V.I.S. Program

*Not available when motor is ON

Pressing OPTIONS/TAB places you into the Options menu at the last option selected. The

following keys are active and perform as follows:

UP ARROW - Scrolls up through menu or selects new value from

list.

DOWN ARROW - Scrolls down through menu or selects new value

from list.

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OPTION

TAB

OPTIONS/TAB - Toggles between options.

ENTER

AUTO

MOTOR ON/OFF

ESCAPE

The Options menu screens will appear as shown in Figure III-1 if you cycle through the possible options using the UP/DOWN arrows.

ENTER/AUTORANGE

RANGE

MOTOR ON/OFF/ESCAPE - Cancels current operation and backs user out

- Accepts the currently ashing option and moves user to next level (if applicable) of the selected option.

one menu level. Repeated pressing will back the user out to the default screen. While in

the Options menu, the MOTOR ON/OFF/ESCAPE key does not cause the viscometer motor to

turn on or off!

SETUP # DTIME TO TORQUE $

SETUP # DTIME TO STOP $

DTIME TO TORQUE # SET PRINT TIME $

DTIME TO STOP # SET PRINT TIME $

SET PRINT TIME # DPC PROG OFF $

DPC PROG OFF # DOWNLOAD A PROG $

DOWNLOAD A PROG # RUN A PROG $

Figure III-1

SET PRINT TIME # DPC PROG ON $

DPC PROG ON # DOWNLOAD A PROG $

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On entry to the Options menu, the following rules regarding current viscometer operation are in force:

1. Printer output will be suppressed when in the Custom Speed option, the Time to Torque and Time to Stop options, the Download A Program and Run A Program options. It will be continued when any other option is selected.

2. If the motor is ON when the user enters the Options menu, choices will be limited to: CGS/SI units (under SETUP), °F/°C units (under SETUP), PRINTING SELECTIONS and PC PROG.

3. The

last selected menu option will be ashing.

Selecting an Option

The following is a quick reference for entering and using the OPTIONS menu:

Press

OPTION

TAB

To enter Options Menu

Press

To scroll to a specic option

For Options:

Press

OPTION

TAB

ENTER

AUTO

RANGE

To toggle between the choices available for a specic option when indicated

To select the ashing option

III.2 Setup

From the main Options screen, the user scrolls up or down until the following screen is displayed:

SETUP è DTIME TO TORQUE ê

Figure III-2

A press of the ENTER/AUTORANGE key takes you into the Setup sub-menu (Figure III-3). As in the main Options menu, you can scroll up or down through the various Setup options. In order to access all options, the motor must be turned off.

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Page 25

D°F(FAHRENHEIT) # DCGS UNITS $

D°F(FAHRENHEIT) # DCGSUNITS $

DCGS UNITS # DSEQUENTIAL $

DSEQUENTIAL # DPRINTSERIAL $

D°C(CENTIGRADE) # DCGS UNITS $

D°F(FAHRENHEIT) # DSIUNITS $

DCGS UNITS # DINTERLEAVE $

DSEQUENTIAL # DPRINTPARALLEL $

DCGS UNITS #

DCUSTOMSPEEDS$

DPRINT SERIAL # DDATAAVERAGING $

OPTION TAB

Figure III-3

III.2.1 Temperature Display

The DV-II+Pro viscometer can display temperature in either degrees Centigrade or degrees Fahrenheit. On entry (assuming the viscometer is currently displaying °F) you will be presented with:

D°F(FAHRENHEIT) è DCGS UNITS ê

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Figure III-4

Page 26

A press of the OPTIONS/TAB key at this point will “toggle” between the two available temperature scale options as shown in Figure III-5:

D°F(FAHRENHEIT) è DCGS UNITS ê

To select the temperature display mode, press the ENTER/AUTORANGE key. You automatically exit the Setup menu with the viscometer displaying temperature in the selected scale. You must press the ENTER/AUTORANGE key to select the ashing option.

III.2.2 Units of Measurement

Selecting units of measurement is identical to that for temperature described above. The screen display shows:

D°F(FAHRENHEIT) è DCGSUNITS ê

A press of the OPTIONS/TAB key at this point allows the user to “toggle” between the two available data display units as shown in Figure III-7:

Figure III-5

Figure III-6

D°C(CENTIGRADE) è DCGS UNITS ê

D°F(FAHRENHEIT) è DCGSUNITS ê

Pressing the ENTER/AUTORANGE key selects the display units, which are ashing, followed by an exit of the Setup menu. You must press the ENTER/AUTORANGE key to select the ashing option.

III.2.3 Motor Speed Set Selection

This selection must be done with the motor off. Scrolling in the Setup options menu to the speed set selection option yields the following screen display:

DCGS UNITS è DSEQUENTIAL ê

Figure III-7

Figure III-8

DF(FAHRENHEIT) è DSIUNITS ê

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The last selected speed set option is displayed, in this case, Sequential. For each press of the

OPTIONS/TAB key, the display shows selectable options (Figure III-9). You must press the ENTER/ AUTORANGE key to select the ashing option.

DCGS UNITS è DSEQUENTIAL ê

The speeds available in each of the above options are listed in Appendix G. The DV-II+Pro is initially set up with the Sequential Speed Set at Brookeld prior to shipment.

III.2.3.1 LV/RV Speeds

In the case of Sequential or Interleave, a press of the ENTER/AUTORANGE key immediately selects that option and exits the SETUP option menu.

III.2.3.2 Custom Speeds

Pressing the ENTER/AUTORANGE key when Custom Speeds is displayed results in the following screen display:

DCGS UNITS è

DINTERLEAVE ê

Figure III-9

.01 h °0.0 i

DCGS UNITS è

DCUSTOMSPEEDS ê

Figure III-10

Fifty-four (54) speeds are available for custom speed set selection (see Appendix G). You are allowed to select up to nineteen (19) of these (54) available speeds. Speed 0.0 is automatically included as one of the nineteen (19) speeds. Selecting a speed (or deleting a speed) is accomplished by pressing the SET SPEED key while the desired speed is blinking. This will cause an asterisk to appear (or to disappear if the speed is being cleared) to the left of the speed. Trying to select more than nineteen (19) speeds will result in a “beep” for each press of the SET SPEED key when over this limit. You may scroll up or down through the speed set in selecting speeds. When done, a press of the ENTER/AUTORANGE key will take you back to the default screen with the asterisked speeds now comprising the custom speed set. Regardless of order chosen, speeds will appear in ascending order for run selection, beginning with speed 0.0 RPM.

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III.2.4 Printer Output Port

Scrolling to the printer port option presents the following:

DSEQUENTIAL è DPRINTSERIAL ê

Figure III-11

DSEQUENTIAL è DPRINTPARALLEL ê

Pressing the OPTIONS/TAB key “toggles” between the two port choices. To select a printer output

port, press the ENTER/AUTORANGE key while the desired choice is blinking. This will cause the DV-II+Pro to direct all further printer output to the chosen port while remaining in the Setup menu. You must press the ENTER/AUTORANGE key to select the ashing option.

III.2.5 Data Averaging

This feature will perform a “rolling” average on the displayed % torque value and all other displayed viscometer data derived from % torque. You are allowed to select the number of readings over which averaging is being done, with ten (10) readings as the maximum. There will be an initial delay as the rst average is performed and then no apparent delay as the following readings are averaged (the viscometer takes approximately 4 readings per second). The rolling average is described as follows given the selected reading number ‘X’:

1. The rst X readings are collected, placed in the averaging buffer, averaged and displayed.

2. The rst reading in the averaging buffer is dropped; the next reading (the X + 1 reading) is placed in the buffer and the buffer is again averaged and displayed. Step 2 is repeated indenitely until the viscometer is shut off or the user selects a different number of readings to average. The number of readings to be averaged will include zero (0) as an average so that this option may effectively be turned off without turning the viscometer off.

Notes:

1. The data averaging will only be applied to the data displayed by the viscometer.

No data averaging will be applied to the torque analog output signal.

2. When data averaging is other than zero (0) or one (1), a ashing A will be displayed

to the left of the % Torque sign as shown below.

CP 123.4 20.1C 10 RPM A% 19.7

Figure III-12

You must press the ENTER/AUTORANGE key to select the ashing option.

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III.3 Time Modes

The Time Modes are provided to allow more exibility by unattended operating of the viscometer during data gathering. The last selected option (i.e. Time to Torque or Time to Stop) will be highlighted when scrolling to this option as shown in Figure III-13:

DSETUP è DTIMETOTORQUE ê

Figure III-13

A press of the OPTIONS/TAB key will “toggle” between the two available timed modes as shown in Figure III-14:

DSETUP è DTIMETOTORQUE ê

DSETUP è DTIMETOSTOP ê

Figure III-14

To enter the time for either of these options, press the ENTER/AUTORANGE key while the selected option is blinking. Let’s start with Time To Stop.

Note: These two modes are immediately executed when input is complete. They do

not return to the default screen until running is complete. They can be stopped at any time by a press of the MOTOR ON/OFF/ESCAPE key.

III.3.1 Time to Stop

On entry, the user is presented with the following screen display:

TIMED STOP SET MIN’S: 00 èê

Note: If a time interval has already been set, the user may skip the time interval input

and go directly to the speed input screen by pressing the ENTER/AUTORANGE key.

Using the UP and DOWN ARROW keys, the user enters a value for the minutes portion of the time ramp. This value can be as high as 59 minutes. When satised, the user presses the OPTIONS/TAB key again to enter the seconds setting display:

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Figure III-15

Page 30

TIMED STOP SET SEC’S: 00 èê

Figure III-16

Using the UP and DOWN ARROW keys, the user enters a value for the seconds portion of the time ramp. This value will be from zero (0 ) up to fty-nine (59) seconds. Press ENTER to accept the value.

Note:

The value for either minutes or seconds must be other than zero or you cannot advance to the RPM input screen (Figure III-17). Pressing the OPTIONS/TAB or ENTER/AUTORANGE keys will cause the user to alternate between the minutes input screen (Figure III-15) and the seconds input screen (Figure III-

16) until either minutes or seconds are anything but zero.

A press of the ENTER/AUTORANGE key allows the user to input the RPM selection. At this point, the user will see a screen similar to Figure III-17; using the UP and DOWN ARROW keys, the user sets the speed.

TIMED STOP SELECT RPM:30 èê

Figure III-17

After selecting the speed, the user may review the values selected. If the user presses the OPTIONS/TAB key, you will return to the minutes input screen of Figure III-15 where you may change the minute input if so desired. Thereafter, continued pressing of the OPTIONS/TAB key will toggle between the minutes and seconds input screens and the motor input screen. A press of the MOTOR ON/OFF/ESCAPE key will cancel the timed stop operation and take the user back to the screen of Figure III-14. Pressing the ENTER/AUTORANGE key will cause the DVII+Pro to accept the new values.

That done, the user is presented with the following screen:

At this point the user must press the ENTER/AUTORANGE key to begin the timed stop operation.

Any other key press will be ignored except the MOTOR ON/OFF/ESCAPE key which will cancel the process and take the user back to the screen of Figure III-14 where you will have to begin all over again.

We will assume that the user pressed the ENTER/AUTORANGE key. You will now be presented with the following screen for the duration of the timed run:

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TIMED STOP ENTER TO START

Figure III-18

Page 31

cP 123.5e6 MIN: 15 SEC: 13

Figure III-19

Note: When this mode has begun, a press of the MOTOR ON/OFF/ESCAPE key

will cancel the Timed Stop sequence and return the user to the screen of Figure III-14. Also note that data will be displayed in the currently selected method i.e. CGS or SI units. Pressing the SELECT DISPLAY key allows display of alternate data values such as Shear Stress, Shear Rate or Torque.

The seconds display will decrement from fty-nine (59 ) to zero (0) in one (1) second intervals. When seconds reaches zero (0), the minutes value will decrement by one (1) minute. This will continue until all of the time has elapsed at which point the viscometer will display the following screen:

cP 123e6 TIMED STOP DONE

Figure III-20

At this point the viscometer will stop the motor and continue to display this screen until any key except the UP or DOWN ARROW key, the PRINT key or the SELECT DISPLAY key is pressed. The user can, while this display is current, press the UP or DOWN ARROW keys to view the torque and speed that were current at the time the display was frozen. The display would appear as follows:

%=76.4 RPM=100 TIMED STOP DONE

Figure III-21

The display will switch between that of Figures III-20 and III-21 for each press of the UP or DOWN arrow keys. A press of the PRINT screen would send one standard print line to the

attached printer for each press of the PRINT key. Pressing any key (except the UP or DOWN ARROW keys, the PRINT key or the SELECT DISPLAY key) will cause the viscometer to exit the Time To Stop mode and resume operation with the screen of Figure III-18 displayed awaiting another Timed Stop run.

The user can press the PRINT key while in either of these two screens (Figures III-20 and III-21) to send one standard print string to the attached printer as many times as the user presses the

PRINT key. In addition, the PRINT key can be pressed during the actual measurement to obtain

instantaneous data. Pressing any other key will exit this mode and return the viscometer to normal operation.

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III.3.2 Time to Torque

On entry to this mode, the user is presented with the following screen display:

TIMED TO TORQUE SET TORQUE:00% èê

Figure III-22

Using the UP or DOWN ARROW keys, the user enters a value for the torque level that you wish to reach.

Note: The value for torque must be other than zero (0) and less than or equal to ninety-

nine (99) percent or you will not be able to continue.

At this point, the user presses the OPTIONS/TAB key and the screen shown in Figure III-23 appears:

TIME TO TORQUE SELECT RPM: 30 èê

Figure III-23

Using the UP or DOWN ARROW keys, the user selects a speed from the currently selected speed set. If you had opted to use the LVRV sequential or interleaved speed sets, all those speeds would be available by pressing the UP or DOWN ARROW keys. Conversely, if the user had selected a custom speed set, you would be limited to those speeds comprising the custom speed set. After selecting the speed, the user may press any one of three keys to continue:

the OPTIONS/TAB key, the MOTOR ON/OFF/ESCAPE key and the ENTER/AUTORANGE key. If the user presses the OPTIONS/TAB key you will return to the torque input screen of Figure III-22 where

you may change the torque input if so desired. Therefore, continued pressing of the OPTIONS/

TAB

key will toggle between the torque input screens and the motor input screen. A press of the MOTOR ON/OFF/ESCAPE key will cancel the time to torque operation and take the user back to the screen of Figure III-13. Finally, pressing the ENTER/AUTORANGE key will cause the DVII+Pro to accept and store in EEPROM the new values (only) for the torque level and the selected motor speed.

That done, the user is presented with the following screen:

TIME TO TORQUE ENTER TO START

Figure III-24

At this point the user must press the ENTER/AUTORANGE key to begin the timed stop operation. Any other key press will be ignored except the MOTOR ON/OFF/ESCAPE key which will cancel the process and take the user back to the screen of Figure III-22 where you will have to begin all over again.

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We will assume that the user pressed the ENTER/AUTORANGE key. You will now be presented with a screen similar to Figure III-25 for the duration of the timed torque run:

TORQUE = 24.2% MIN: 15 SEC: 13

Figure III-25

Note: When this mode has begun, a press of the MOTOR ON/OFF/ESCAPE key will

cancel the time to torque sequence and return the user to the screen of Figure III-13.

The seconds display will increment from zero (0) to fty-nine (59) in one (1) second intervals and the current value of the viscometer torque will be updated continuously. When seconds reaches fty-nine (59), the minutes value will increment by one (1) minute. This will continue until the user selected torque value is attained at which point the viscometer will display the following screen:

22MIN 54SEC: 85% TIMED TORQ DONE

Figure III-26

At this point the viscometer will stop the motor and continue to display this screen until any key (except the UP or DOWN ARROW keys, the PRINT key or SELECT DISPLAY key) is pressed. The user can, while this display is current, press the UP or DOWN ARROW keys to view the viscosity that was current at the time the display was frozen. The display would appear as follows:

cP 123.5e6 TIMED TORQ DONE

Figure III-27

The display will switch between that of Figures III-26 and III-27 for each press of the UP or

DOWN ARROW keys. As stated above, pressing any key (except the UP or DOWN ARROW or PRINT

keys) will cause the viscometer to exit the Time To Torque mode and resume operation with the screen of Figure III-22 displayed awaiting another Timed Torque run.

The user can press the PRINT key while in either of these two screens (Figures III-26 and III-27) to send one standard print string to the attached printer as many times as the user presses the

PRINT key. In addition, the PRINT key can be pressed during the actual measurement to obtain

instantaneous data. Pressing any other key will exit this mode and return the viscometer to normal operation.

Note: For both of the methods of Sections III.3.1 and III.3.2 the following apply:

1. For the Timed Stop method, the DV-II+Pro viscometers will retain the last value for the time interval so that it will become the default the next time the user elects to use this method.

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2. For the Time To Torque method, the DV-II+Pro viscometers will retain the last entered torque value for use when next the user elects to perform a time to torque test.

3. The user can set up a desired print interval time, then set the viscometer to the continuous print mode and nally initiate either of the timed modes of operation. While setting up the timed mode parameters, continuous print operation will cease. However, upon starting the timed operation, the DV-II+Pro will output an initial data string to the printer and then continue printing data strings (at the user dened time interval) for the duration of the timed run. At the end of the timed run, continuous printing will again be disabled and the user may print single strings (of the nal data point) at your option until you exit the timed mode. Upon returning to the default operation mode, continuous printing will again resume at the user selected time interval. In a similar manner, if you are in the once-per-PRINT -key-press mode, when you enter the timed mode of operation you will be able to print data strings at any time during the timed mode by pressing the PRINT key.

III.3.3 Print Time Interval

This option is used to set the print time interval to the selected printer. Scroll to Set Print Time, as shown in Figure III-28:

D TIMED TO TORQUE è SETPRINTTIME ê

Figure III-28

Press the ENTER/AUTORANGE key. On entry, Figure III-29 is displayed:

PRINT INTERVAL SET MIN’S: 00 èê

Figure III-29

Using the UP and DOWN ARROW keys, enter a value for the minutes between successive print strings. This value can be as high as fty-nine (59) minutes and as low as 00.

When satised, press the OPTIONS/TAB key to enter the seconds setting display:

PRINT INTERVAL SET SEC’S: 00 èê

Using the UP and DOWN ARROW keys, enter a value for the seconds portion of the print interval. This value can be between zero (0) and fty-nine (59 )seconds.

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Figure III-30

Page 35

Note: The value for minutes or seconds must be other than zero (0) or you will print

continuously when you exit this mode. A press of the MOTOR ON/OFF/ ESCAPE key would exit this option and take you back to the screen of Figure III-28.

Continued pressing of the OPTIONS/TAB key will toggle between the minutes and seconds input screens. Press the ENTER/AUTORANGE key to accept the new values for print interval in minutes and seconds. You will now be in the screen display of Figure III-28 where you may re-enter the print interval mode, or exit to the default screen (Figure II-5) by pressing the MOTOR ON/

OFF/ESCAPE key.

Activating print selections in the Print mode can only be done by exiting to the main menu and pressing the PRINT key for four (4) seconds. “P%” will ash in front of the torque reading, conrming that you are now in the Print Interval mode. Pressing PRINT for one (1) second thereafter will disable the Print mode and remove the “P%” from the display.

III.3.4 PC Program (On/O)

This option causes the serial port of the DV-II+Pro viscometer to go into a high speed output mode (approximately 3 print lines per second) for use with Brookeld WINGATHER® software program. When ON, you may enter the Options menu but will not be allowed to make any option selections until the PC PROG is turned OFF. All front panel keys will function normally when you turn the option ON and return to normal viscometer operation by pressing the MOTOR ON/OFF/ESCAPE key. When OFF, the DV-II+Pro will return to the last set print time interval when printing is resumed.

Note:

WINGATHER® software can be used for data acquisition and analysis. Rheocalc32 software can be used for complete external control of DV-

II+Pro.

From the Options menu, scroll to the screen shown in Figure III-31:

SET PRINT TIME è D PCPROGOFF ê

Figure III-31

Press the OPTIONS/TAB key to display Figure III-32:

SET PRINT TIME è D PCPROGON

Figure III-32

Pressing the OPTIONS/TAB key would return you to the screen display of Figure III-31. Repeated

pressing of the OPTIONS/TAB key would cause you to toggle back-and-forth between the displays of Figure III-31 and Figure III-32.

To turn high speed output ON, press the ENTER/AUTORANGE key when the appropriate screen is displayed. Then press the MOTOR ON/OFF/ESCAPE key to exit the Setup mode. This returns you

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to the default screen display and resumes normal viscometer operation with high speed output enabled and normal printer operation using the last entered print time interval.

Note: For access to B.E.V.I.S. option, PC PROG must be OFF.

III.3.5 Download a Program

Please refer to Section IV for details on how to create a program before proceeding with this section.

In the Options menu, scroll to the screen shown in Figure III-33:

D PC PROG OFF è DOWNLOADAPROG ê

Figure III-33

Refer to Section IV for information on how to create B.E.V.I.S. programs on a PC which can be downloaded to the DV-II+Pro Programmable Viscometer.

Press the ENTER/AUTORANGE key to download a B.E.V.I.S. program as shown in Figure III-34:

LOAD TO SLOT#1èê

PRESSENTERKEY

Figure III-34

Select a number from one (1) to four (4) using the UP/DOWN ARROW keys assign a storage location for the program to be downloaded.

Note: Remember to keep track of what program is in what slot. If you elect to

download a new program to an active slot, you will overwrite the program currently residing in that slot. The programs are saved automatically when the viscometer is turned off.

After selecting the slot number, press the ENTER/AUTORANGE key and the screen shown in Figure III-34 changes as follows: the top line ashes while the bottom line disappears. This ashing screen will be displayed for as long as it takes to download the program. At the end of the download, Figure III-35 is displayed:

DOWNLOAD DONE TO EXIT PRESS A KEY

If a PC is not attached, Figure III-36 will be displayed:

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Figure III-35

Page 37

B.E.V.I.S. ERROR NO PC ATTACHED

Figure III-36

A press of any key (except the MOTOR ON/OFF/ESCAPE key) will take the user back a level to Figure III-34 where you may elect to download another program or, with a press of the MOTOR

ON/OFF/ESCAPE key, return to the screen of Figure III-33.

III.3.6 Run a Program

In the Options menu, scroll to the screen shown in Figure III-37:

DOWNLOAD A PROG è RUNAPROG ê

Figure III-37

Press the ENTER/AUTORANGE key to run a B.E.V.I.S. program as shown in Figure III-38:

RUN PGM SLOT#1èê

PRESSENTER

Figure III-38

Using the UP/DOWN ARROW keys, select one of the four (4) stored programs. Press the ENTER/

AUTORANGE key. Any attempt to select a program slot that does not contain a program will

result in a double beep for each key press. When a valid program slot is selected, the screen in Figure III-39 is displayed:

PRINT KEY = LIST ENTER KEY = RUN

Figure III-39

At this point, you may elect to print the B.E.V.I.S. program by pressing the PRINT key or start the program immediately by pressing the ENTER/AUTORANGE key (remember: pressing the

MOTOR ON/OFF/ESCAPE key will stop the current operation and bring you back one menu level).

You may elect to print the program, to conrm the slot choice as correct or simply to have it available later when reviewing data. If you elect to print the program, you will return to the screen of Figure III-38 after the program is nished printing. Pressing the ENTER/AUTORANGE key exits the screen of Figure III-38 and the program will start running.

On program start, the screen could be any of the screens possible when running a B.E.V.I.S. program. A typical screen might be:

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USE SPINDLE 31 PRESS A KEY

Figure III-40

where the operator is instructed to mount a spindle 31 and then press a key to continue. Or you might see:

SET TEMP TO 100C PRESS A KEY

Figure III-41

followed by:

WAIT TEMP 100C P1 S00/12 00:14

Figure III-42

Here, the B.E.V.I.S. program is waiting for the temperature to reach one hundred (100) °C before it continues to the next program step. Also displayed is the program number (P1), the step number and the total program steps (S00/12) and the elapsed time since the program (or step) began (00:14). While in this “wait state” you can press the OPTIONS/TAB key to see the viscometer default screen in Figure III-43; the PGM will be ashing.

CP 123.4 55.1C 10 RPM PGM% 63.7

Figure III-43

The DVLOADER Software is used to create, save, print, and down load programs to the DVII+Pro Viscometer. The next section explains how to use the DVLOADER software.

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IV. DVLOADER SOFTWARE

The DVLOADER software is a WINDOWS-based program provided on a CD which comes with the Programmable DV-II+Pro Viscometer.

IV.1 B.E.V.I.S. Overview

DVLOADER utilizes B.E.V.I.S. (Brookeld Engineering Viscometer Instruction Set), a scripting language that allows for the creation of programs to control the Programmable DVII+Pro Viscometer. Programs are created on a PC, then loaded into the viscometer using the DVLoader software. Some testing capabilities that are possible include the following:

• Repeatedly run the same test program for quality control purposes.

• Wait for a specic condition before continuing with the test (i.e. a torque value, a temperature value, a key press, etc.).

• Run the viscometer at any of the speeds in the Custom Speed menu.

• Display messages to the screen or an attached printer to aid the operator.

• An internal clock that keeps time between each printed data line (this time is displayed as the last parameter on each printed line). This provides a consistent time base for the collected data.

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IV.2 Description of B.E.V.I.S. Commands

Command Code Required Parameter Command Description

WTI Time The program waits at this step until the specied time (MM:SS) elapses. WPT % Torque value The program waits at this step until the current % torque (%) equals the specied value. WTP Temperature value The program waits at this step until the current temperature (°C) equals the specied value. WKY 16 character (or less) The specied message is displayed on the top line of the DV text message II+ display while PRESS A KEY is displayed on the bottom line of the DV-II+Pro. The program waits at this step until a viscometer key is pressed. While waiting at this step, the viscometer produces a beep every few seconds to remind the operator that a keypress is required to continue. If a print interval was enabled (see SPI) at the time this command is executed, the data print timer continues to count up. If the print interval elapses and a key has not yet been pressed, a line of data displaying the time since the last data print is printed as soon as a key is pressed. SSN Speed value The DV-II+Pro begins rotating at the specied speed. This (RPM) can be any of the speeds listed in the Speed list of the DVLoader software. These speeds are the same as those listed in the Custom Speeds list in the viscometer’s Options menu. SPI Time The DV-II+Pro begins printing data to the selected printer (MM:SS) (serial or parallel; as selected in the DV-II+Pro menus) at the rate specied. MM:SS is minutes:seconds. SSP Two digit spindle code Calculations of viscosity, shear stress, and shear rate are performed based on the specied spindle code. This command overrides the spindle currently entered via the keypad on the DV-II+Pro. STZ N/A Sets the data print timer clock back to zero. PDN N/A The DV-II+Pro immediately prints a data string to the se- lected printer (serial or parallel; as selected in the DV-II+Pro menus). PLN 16 character (or less) The DV-II+Pro prints the specied message to the selected text message printer (serial or parallel; as selected in the DV-II+Pro menus).

By using various combinations of the above commands, programs are created that automatically control the viscometer and collect data (via an attached printer) from the Programmable DV-II+Pro Viscometer.

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IV.3 Creating a B.E.V.I.S. Program

Start the DVLOADER software by clicking on its associated icon. For Windows 95/98/ NT/2000, click the Start button; select Run; enter the name of the program to execute {dvloader.exe}; then click OK.

The B.E.V.I.S. commands are displayed in a list box on the main screen. This list box displays the commands available for creating programs. Clicking on the Insert button inserts the highlighted command (WTI, as shown in Figure IV-1) into the selected line in the program grid. Double-clicking on a line in this list box also inserts the command into the grid shown in Figure IV-2.

The icons to the left of the command descriptions indicate the type of command:

A command to wait for a condition.

Figure IV-1

A command to set a program parameter.

A command to send information to an attached

printer.

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1 SSN 50.0

2 WTI 00:30

3 SPI 00:05

4 WPT 75 .0

5 SSN 25.0

6 WTI 00:10

7 WPT 75 .0

8 SSN 0.0

Figure IV-2 shows the grid where the operator programs are created. It is used to view and edit the B.E.V.I.S. programs. When the software starts, an empty grid appears on the left of the screen. You can choose up to 25 commands for your program. Highlight each command in the list box to the right of this grid, then click on the Insert button to insert that same command into the highlighted line of the grid. This same insertion task can also be accomplished by double-clicking on the appropriate command in the list box to the

right.

In the case of a speed command (SSN), the Speeds list box becomes enabled when the cursor is placed in the parameter column for an SSN command. Click on the down arrow to display a list of available speeds. Click on the desired speed, and it will be inserted into the appropriate parameter column in the program grid. The same applies to the spindle command (SSP).

Figure IV-2

The buttons shown on the main screen are explained below.

Select the COM (RS-232) port the Programmable DV-II+Pro Viscometer is connected to from the COM Port drop down list.

Click the Open File button to load existing B.E.V.I.S. programs.

Click the Save File button to save the B.E.V.I.S. program displayed in the grid.

Click the Print button to print the B.E.V.I.S. program displayed in the grid.

Click the Insert button to insert the B.E.V.I.S. command selected in the Commands box into the selected row in the program grid.

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Click the Delete button to delete the B.E.V.I.S. command in the selected row of the program grid.

Click the Up button to move the B.E.V.I.S. command in the selected row of the program grid up one row.

Click the Down button to move the B.E.V.I.S. command in the selected row of the program grid down one row.

Click the Clear button to clear the grid of all B.E.V.I.S. commands. Once cleared, the commands cannot be retrieved.

Downloads a B.E.V.I.S. program from the PC to the DV-II+Pro

Exits the DVLOADER software program and returns the user to the WINDOWS Program Manager.

IV.4 Downloading a B.E.V.I.S. Program

Before down loading a B.E.V.I.S. program to the viscometer, ensure the following have been checked:

• The appropriate cable (BEL Part# DVP-80) is connected between the selected COM port of

the PC and the viscometer.

• The DV-II+Pro motor must be OFF.

• Set PC PROG to “OFF.”

• The Programmable DV-II+Pro is at the down load screen: OPTIONS|DOWNLOAD A

PROG|LOAD TO SLOT#x where x is slot 1,2,3, or 4. See Section III.6.

With the LOAD TO SLOT#x screen displayed, choose a storage slot using the DV-II+Pro

arrow keys then press the ENTER/AUTO RANGE key on the viscometer. If after 5 seconds, the viscometer cannot communicate with the DVLoader program, the B.E.V.I.S.

ERROR NO PC ATTACHED

message is displayed and a beeping sound is heard. If a connection is established, the Down Load button on the PC software becomes enabled , and the DV-II+Pro screen displays DOWNLOAD PROG TO STORAGE SLOT #1. Click on this button to down load the displayed program to the DV-II+Pro. When the down load is complete, the DV-II+Pro displays DOWNLOAD DONE TO EXIT PRESS A KEY.

At this point the program in the DV-II+Pro can be printed and/or run from the viscometer.

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Click on this button to exit the DVLOADER software.

Note: This is an important nal step because it allows the RS232 port to be used for

output from the DV-II+Pro to a serial printer or PC.

IV. 5 Example Programs

The following example programs can also be found on the DVLoader disk that was included with the DV-II+Pro Programmable Viscometer:

Program 1: Pre-Shear

Command Command Description Parameter Comments

PLN Print text now Preshearing now print user message SSN Set viscometer speed 50.0 run at 50 RPM

WPT Wait for % torque 90.0 wait until 90% torque is reached

PLN Print text now Collecting data print user message

SPI Set print interval 00:10 begin printing data at 10 second

intervals SSN Set viscometer speed 10.0 run at 10 RPM WTI Wait for time interval 01:40 wait at this step for 1 minute and

40 seconds, effectively printing 10

data lines

Program 2: For use with an external temperature controller

Command Command Description Parameter Comments

WTP Wait for temperature 40.0 wait until temperature = 40°C

(as an example, a Thermosel/Controller can be used for temperature control)

WTI Wait for time interval 05:00 soak time; allow temperature to

settle

SSN Set viscometer speed 25.0 run at 25 RPM

SPI Set print interval 00:30 begin printing data at 30 second

intervals

WTI Wait for time interval 06:00 wait at this step for 6 minutes,

effectively printing 12 data lines

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Program 3: Wait for cure (time to torque measurement)

Command Command Description Parameter Comments

SSP Set spindle 31 set to a number 31 spindle

SSN Set viscometer speed 100.0 run at 100 RPM

SPI Set print interval 00:05 begin printing data at 5 second

intervals

WPT

Wait for % torque 85.0

wait until % torque = 85; a curing cycle

Program 4: Spring relax

Command Command Description Parameter Comments

WKY Wait for a key press Wind to 100% tell operator to wind spindle

until 100% torque is reached

WPT

Wait for % torque 100.0

wait until 100% torque is reached

WKY Wait for a keypress Release spindle tell operator to release the spindle

SPI Set print interval 00:01 begin printing data at 1 second

intervals

WPT

Wait for % torque

0.0 wait for spindle to completely unwind to 0% torque

Program 5: Variable speed

Command Command Description Parameter Comments

SSN Set viscometer speed 5.0 run at 50 RPM WTI Wait for time interval 00:10 wait for 10 seconds

PDN Print data point now print one data point

SSN Set viscometer speed 10 run at 10 RPM WTI Wait for time interval 00:10 wait for 10 seconds

PDN Print data point now print one data point

SSN Set viscometer speed 20 run at 20 RPM WTI Wait for time interval 00:10 wait for 10 seconds

PDN Print data point now print one data point

SSN Set viscometer speed 5.0 run at 50 RPM WTI Wait for time interval 00:10 wait for 10 seconds

PDN Print data point now print one data point

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V. AUTOMATED DATA GATHERING & ANALYSIS

There are two choices of applications software that can be purchased from Brookeld or an authorized dealer for this purpose:

1. WINGATHER32 is a data gathering program which collects data output from the DV-II+Pro and provides the capability to perform graphical analysis and data le management.

2. RHEOCALC32 is a control program which operates the DV-II+Pro in external control via a PC as well as a data gathering program for the purpose stated above in the WINGATHER32 description.

V.1 WINGATHER32

Important features and benets in WINGATHER32 which enhance operator versatility in performing viscosity tests include the following:

• 32-bit operation for rapid performance

• Compatible with Windows 95, 98, ME, 2000 and NT operating systems for exible

operation.

• Brookeld’s DV Loader software (for setting up test programs) is integrated into

WINGATHER32. DV Loader is an easy-to-use, structured command language which makes detailed viscosity tests simple to program (see Section IV).

• Easy-to-use data gather modes including automatic follow up events (save data, analyze data,

print data)

• Manual scaling of plot axes

• Auto range feature which shows in screen display the complete viscosity range which can be

measured at any shear rate for a specic spindle geometry

• Concurrent plotting of six data sets on one graph

The following gures show the principal screens associated with WINGATHER32:

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Figure V-1: Dashboard Screen

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Figure V-2: Test Selection Screen

Figure V-3: Run/Data Screen

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Figure V-4: Analysis Screen

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V.2 RHEOCALC32

Important features and benets in Rheocalc32 which enhance operator versatility in performing viscosity tests include the following:

• Compatible with Windows 95, 98, ME, 2000 and NT operating systems for exible operation

• 32-bit operation for rapid performance

• Easy-to-use, structured command language to make viscosity tests easier to program

• Display of current temperature set point

• Concurrent plotting of four data sets on one graph

• Various mathematical models for data analysis

• Auto range feature which shows in screen display the complete viscosity range which can be

measured at any shear rate for a specic spindle geometry

The following gures show the principal screens associated with Rheocalc32

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Figure V-5: Dashboard Screen

Figure V-6: Test Program Setup Screen

Page 49

Figure V-7: Run Data Screen

Figure V-8: Analysis Screen

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Appendix A - Cone/Plate Viscometer Set-Up

Pilot Light

(red)

Toggle Swtich

Contact Light

(yellow)

Sliding Reference

Marker

Micrometer

Adjustment Ring

This Cone/Plate version of the DV-II+Pro uses the same operating instruction procedures as described in this manual. However, the “gap” between the cone and the plate must be veried/adjusted before measurements are made. This is done by moving the plate (built into the sample cup) up towards the cone until the pin in the center of the cone touches the surface of the plate, and then by separating (lowering) the plate 0.0005 inch (0.013mm).

When operating the Cone/Plate at elevated temperature, the gap must be set with the cup and spindle equilibrated at that temperature. Maximum temperature for Cone/Plate operation is 100ºC.

Programmable DV-II+Pro Cone/Plate Viscometers, S/N 50969 and higher, have an Electronic Gap Setting feature. This feature enables the user to easily nd the 0.0005 inch gap setting that was established at Brookeld prior to shipment.

The following information explains how to set the Electronic Gap and verify calibration of the DVII+Pro Viscometer.

A.1 ELECTRONIC GAP SETTING FEATURES

TOGGLE SWITCH allows you to enable/disable the

Electronic Gap Setting Feature: left position is OFF (disabled), right position is ON (enabled).

PILOT LIGHT is the red (LED) light; when illumi-

nated, it means the Electronic Setting Function is sensing (enabled).

CONTACT LIGHT is the yellow (LED) light; when it

rst turns on, the “hit point” has been found.

SLIDING REFERENCE MARKER is used after nding the

“hit point;” it is the reference for establishing the

0.0005 inch gap.

MICROMETER ADJUSTMENT RING is used to move the cup up or down in relation to the cone spindle.

Figure A1

Turning the ring left (clockwise) lowers the cup; turning it right (counterclockwise) raises the cup. Each line on the ring represents one scale division and is equivalent to 0.0005 inch movement of the plate relative to the cone.

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A.2 SETUP

Bath/Circulator

Bath

Inlet

Bath

Outlet

Sample

Cup

(CPE-44Y

CPE-44P)

Cup

Outlet

Cup Inlet

Spindle Wrench

(CPE) Cone

These surfaces

must be clean!

Coupling Nut

Micrometer Adjustment

Ring

Do Not hit the

CONE with the CUP!

1. Be sure that the Viscometer is securely mounted to the Laboratory Stand, leveled and zeroed with no cone or cup attached and 0% torque is displayed.

2. Figure A2 shows a typical water bath setup. Connect the sample cup inlet/outlet ports to the water bath inlet and outlet and set the bath to the desired test temperature. Allow sufcient time for the bath to reach the test temperature.

3. The Viscometer has been supplied with a special cone spindle(s) which contains the Electronic Gap Setting feature. The “CPE” part number designation on the cone veries the Electronic Gap Setting feature.

Figure A2

Note: The “CPE” cone or cup cannot be

used with earlier DV-II+ cone/plate Viscometers (below S/N50969) which do not have the electronic gap setting feature.

4. With the motor off, thread the cone spindle by using the spindle wrench to secure the viscometer coupling nut (see Figure A3); gently push up on the coupling nut and hold this securely with the wrench. Thread the cone spindle by hand.

Note: Left Hand Threads.

5. Attach the cup, taking care not to hit the cone with the cup (Figure A4).

Figure A3

Brookeld Engineering Labs., Inc. Page 51 Manual No. M/03-165-D0410

Figure A4

Page 52

A.3 SETTING THE GAP

Moves Away

from Hit Point

(clockwis e)

LEFTx

Moves Towards

Hit Point

(counter-clockwise)

RIGHT

Full Scale

Division Marks

Sliding

Reference

Marker

1. Move the toggle switch to the right; this will turn on (enable) the Gap Setting Feature. The Pilot (red) light will be illuminated.

2. If the contact light (yellow) is illuminated, turn the micrometer adjustment ring clockwise (as you look down on the instrument) until the light is no longer illuminated (see

Figure A5

3. If the yellow contact light is not illuminated, slowly turn the micrometer adjustment ring in small increments (one or two scale divisions) counter-clockwise.

Continue moving the micrometer adjust

ment ring slowly counter-clockwise until the contact light (yellow) rst turns on. THIS

IS THE “HIT POINT

.”

4. Adjust the sliding reference marker, right or left, to the closest full scale division mark

(see Figure A6)

5. Turn the micrometer adjustment ring one scale division to the left to meet the line on the sliding reference marker. THE YEL-

LOW CONTACT LIGHT SHOULD GO OFF.

6. You have established the gap space needed for measurement. Now turn the toggle switch OFF (left); the red pilot light should go off.

The viscosity of electrically conductive uids may be affected if readings are taken with the Electronic Gap Setting feature “on”. Be sure to shut the feature “off” before taking readings!

Figure A5

Figure A6

7. Carefully remove the sample cup.

Notes:

1. The cup may be removed and replaced without resetting the gap if the micrometer adjustment ring has not been moved.

2. Remove the spindle from the viscometer when

3. Re-establish the hit point every time the spindle is

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cleaning.

attached/detached.

Page 53

A.4 VERIFYING CALIBRATION

1. Determine the appropriate sample volume. Refer to Table A1 to determine the correct sample volume required for the spindle to be utilized.

2. Select a Brookeld Viscosity Standard uid that will give viscosity readings between 10% and 100% of full scale range. Refer to Appendix B for viscosity ranges of cone spindles; ranges listed apply to CPE cones.

Do not use a silicone viscosity standard uid with a viscosity value greater than 5000 cP with

a Cone/Plate. Brookeld offers a complete range of mineral oil viscosity standards suitable for use with Cone/Plates for viscosities above 5,000 cP or shear rates above 500 sec

-1

; see

Table E2 in Appendix E for a list of available uids.

It is best to use a viscosity standard uid that will be close to the maximum viscosity for a

given cone spindle/speed combination.

Example: LVDV-II+ Viscometer, Cone Spindle CPE-42, Brookeld Silicone Viscosity

Standard having a viscosity of 9.7 cP at 25°C

At 60 RPM, the full scale viscosity range is 10.0 cP. Thus, the Viscometer reading should be

97% torque and 9.7 cP viscosity ± 0.197 cP. The allowable error (±0.197 cP) is a combination of Viscometer accuracy and uid tolerance (refer to Interpretation of Calibration Test

Results

Appendix E).

3. With the motor off, remove the sample cup and place the viscosity standard uid into the cup.

Table A1

Cone Part No.

CPE-40 CPE-41 CPE-42 CPE-51 CPE-52

Sample Volume

0.5 ml

2.0 ml

1.0 ml

0.5 ml

4. Attach the sample cup to the Viscometer and allow sufcient time for the sample, cup and cone to reach temperature equilibrium.

5. Turn the motor on. Set the desired speed(s). Measure the viscosity and record the reading in both % torque and centipoise (cP).

Note: The cone spindle must rotate at least ve (5) times before a viscosity reading

is taken

6. Verify that the viscosity reading is within the allowable 1% deviation, as explained earlier, for the specic viscosity standard uid(s) that you are using.

* The CPE designation on the cone spindle indicates use with Electronic Gap Setting Cone/

Plate Viscometers/Rheometers only.

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A.5 VISCOSITIES OF DISTILLED WATER AND A 5 CPS STANDARD @ 25°C TESTED WITH

CONE SPINDLES #40 AND #41.

Distilled water and a 5 CPS Brookeld Viscosity Standard Fluid rated 4.7 cP and at 25°C were tested using a Brookeld LVDV-II+Pro C/P Viscometer with Cone Spindles CPE-40 and CPE-41. Temperature was maintained at 25°C by using a Brookeld TC-502P Programmable Temperature Bath. Samples were equilibrated at 25°C for 15 minutes prior to testing. Conditions were used such that results were between 10 and 100% of Full-Scale Range or “FSR”.

The attached graph shows that the viscosity of each material, when measured with the CPE40 Cone Spindle, is essentially constant over the range of speeds tested. However, viscosity increases with increasing speed for each material when using Cone Spindle CPE-41. This agrees with viscosity behavior discussed in the technical literature on the same subject. That is, the chance of secondary ows and therefore, erroneous readings, increases as:

1. the sample viscosity decreases,

2. the cone angle increases, and

3. the cone angular velocity (or testing speed) increases.

Figure A7 summarizes the results for viscosity vs. speed. Note that the 0.90 cP reading, for distilled water was made at 40 rpm (11.5% Torque) corresponding to 300 s-1. Liquids with higher viscosities may be measured with on-scale torques at lower speeds (and shear rates).

Therefore, if it is desired to test very-low-viscosity materials at very-low-shear rates, the tester should seriously consider using an air-bearing instrument with a low-angle cone.

Figure A-7: Distilled water and 5 CPS standard results at 25°C.

Brookeld Engineering Labs., Inc. Page 54 Manual No. M/03-165-D0410

Page 55

Appendix B - Viscosity Ranges

Viscosity Range Tables

Viscosity ranges shown are for operational speeds 0.1 through 200 rpm.

LV Viscometer with LV spindles #1-4 and RV/HA/HB Viscometers with spindles #1-7

Viscosity Range (cP)

Viscometer

LVDV-II+

RVDV-II+

HADV-II+ 200 80,000,000

HBDV-II+ 800

Minimum

15 6,000,000

100 40,000,000

Maximum

320,000,000

Small Sample Adapter and Thermosel

SSA and Thermosel

LVDV-II+ RVDV-II+

Spindle

SC4-14

SC4-15

SC4-16

58.6 - 1,171.00

23.4 - 468,650

60 - 1,199,700 640 - 12,800,000 1,280 - 25,600,000 5,120 - 102,400,000 .29N

625 - 12,500,000 1,250 - 25,000,000

250 - 5,000,000 500 - 10,000,000 2,000 - 40,000,000

SC4-18 1.5 - 30,000 16 - 320,000 32 - 640,000 128 - 2,560,000 1.32N

SC4-21 2.4 - 46,865 25 - 500,000 50 - 1,000,000 200 - 4,000,000 .93N

Viscosity (cP)

HADV-II+ HBDV-II+

Shear Rate sec-1Å

5,000 - 100,000,000 .40N

.48N

SC4-25 240 - 4,790,000 2,560 - 51,200,000 5,120 - 102,400,000 20,480 - 409,600,000 .22N

SC4-27 11.7 - 234,325 125 - 2,500,000 250 - 5,000,000 1,000 - 20,000.000 .34N

SC4-28 23.4 - 468,650 250 - 5,000,000 500 - 10,000,000 2,000 - 40,000,000 .28N

SC4-29 46.9 - 937,300 500 - 10,000,000 1,000 - 20,000,000 4,000 - 80,000,000 .25N

SC4-31 15 - 300,000 160 - 3,200,000 320 - 6,400,000 1,280 - 25,600,000 .34N

SC4-34 30 - 600,000 320 - 6,400,000 640 - 12,800,000 2,560 - 51,200,000 .28N

This spindle used with Small Sample Adapter only

Å N represents speed in RPM. For example, spindle SC4-14 operated at 5 rpm has a shear rate of

0.40 x 5 = 2.0 sec

-1

Range and spindle constant information for spindles 82 and 83 are listed on Brookeld Technical Sheet T95-954. Consult Brookeld or your Brookeld dealer for information on spindles

81 and 37.

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Page 56

UL Adapter

UL Spindle

YULA-15 or 15Z 1 - 2,000 3.2 - 2,000 6.4 - 2,000 25.6 - 2,000

LVDV-II+

RVDV-II+ HADV-II+

Viscosity (cP)

HBDV-II+

DIN Adapter Accessory

DAA Spindle

85 0.6 - 5,000 6.1 - 5,000 12.2 - 5,000 48.8 - 5,000

86 1.8 - 10,000 18.2 - 10,000 36.5 - 10,000 146 - 10,000

87 5.7 - 50,000 61 - 50,000 121 - 50,000 485 - 50,000

LVDV-II+ RVDV-II+

Viscosity (cP)

HADV-II+

HBDV-II+

Spiral Adapter

Spiral Spindle

SA-70 98 - 98,500 1,050 - 1,050,000 2,100 - 2,100,000 8,400 - 8,400,000

LVDV-II+ RVDV-II+ HADV-II+

Viscosity (cP)

HBDV-II+

Shear Rate sec-1

1.22N

Shear Rate sec-1

1.29N

Shear Rate sec-1

0.667N

Cone/Plate Viscometer

Cone Spindle

CPE-40 .15 - 3,065 1.7 - 32,700 3.3 - 65,400 13.1 - 261,000

CPE-41 .58 - 11,510 6.2 - 122,800 12.3 - 245,600 49.1 - 982,400

CPE-42 .3 - 6,000 3.2 - 64,000 6.4 - 128,000 25.6 - 512,000

CPE-51 2.4 - 47,990 25.6 - 512,000 51.7 - 1,024,000 205 - 4,096,000

CPE-52 4.6 - 92,130 49.2 - 983,000 99.2 - 1,966,000 393 - 7,864,000

LVDV-II+ RVDV-II+ HADV-II+

Viscosity (cP)

HBDV-II+

Shear Rate sec-1

7.5N

2.0N

3.84N

2.0N

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Helipath with T-Bar Spindle

T-Bar Spindle

LVDV-II+ RVDV-II+

Viscosity (cP)

HADV-II+ HBDV-II+

T-A 156 - 187,460 2,000 - 2,000,000 4,000 - 4,000,000 16,000 - 16,000,000

T-B 312 - 374,920 4,000 - 4,000,000 8,000 - 8,000,000 32,000 - 32,000,000

T-C 780 - 937,300 10,000 - 10,000,000 20,000 - 20,000,000 80,000 - 80,000,000

T-D 1,560 - 1,874,600 20,000 - 20,000,000 40,000 - 40,000,000 160,000 - 160,000,000

T-E 3,900 - 4,686,500 50,000 - 50,000,000 100,000 - 100,000,000 400,000 - 400,000,000

T-F 7,800 - 9,373,000 100,000 - 100,000000 200,000 - 200,000,000 800,000 - 800,000,000

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Page 58

Vane Spindles

Spindle Torque

Range

Shear Stress

Range (Pa)

Viscosity Range

cP (mPa·s)

V-71 NOT RECOMMENDED FOR USE ON LV TORQUE

V-72

V-73 LV

V-74

V-75

V-71 RV

V-72

V-73 RV

V-74

LV .188-1.88

.938-9.38 502-5.02K

LV 9.38-93.8

3.75-37.5 1.996K-19.96K

.5-5

RV 2-20

10-100 5.35K-53.5K

RV 100-1K

104.04-1.04K

5.09K-50.9K

262-2.62K

1.11K-11.1K

54.3K-543K

V-75 RV 40-400 21.3K-213K

V-71 HA 1-10 524-5.24K

V-72 HA 4-40 2.22K-22.2K

V-73 HA 20-200 10.7K-107K

V-74 HA 200-2K 108.6K-1.086M

V-75 HA 80-800 42.6K-426K

V-71 HB 4-40 2.096K-20.96K

V-72 HB 16-160 8.88K-88.8K

V-73 HB 80-800 42.8K-428K

V-74 HB 800-8K 434.4K-4.344M

V-75 HB 320-3.2K 170.4K-1.704M

V-71 5XHB 20-200 10.48K-104.8K

V-72 5xHB 80-800 44.4K-444K

V-73 5XHB 400-4000 214K-2.14M

V-74 5xHB 4K-40K 2.172M-21.72M

V-75 5xHB 1.6K-16K 852K-8.52M

Note: 1. 1 Pa = 10 dyne/cm2

2. Viscosity Range is given at rotational speed of 10 RPM

3. 5xHB is the highest torque range available

4. Not for use with DV-E Viscometers M = 1 million K - 1 thousand Pa = Pascal cP = Centipoise mPa•s = Millipascal•seconds

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Page 59

Special Considerations

In taking viscosity measurements with the DV-II+Pro Viscometer there are two considerations which pertain to the low viscosity limit of effective measurement.

1) Viscosity measurements should be accepted within the equivalent % Torque Range from 10% to 100% for any combination of spindle/speed rotation.

2) Viscosity measurements should be taken under laminar ow conditions, not under turbulent ow conditions.

The rst consideration has to do with the precision of the instrument. All DV-II+Pro Viscometers have an accuracy of +/- 1% of the range in use for any standard spindle or cone/ plate spindle. (Note that accuracy values may be higher than 1% when using accessory devices with the DV-II+Pro). We discourage taking readings below 10% of range because the potential viscosity error of +/- 1% is a relatively high number compared to the instrument reading.

The second consideration involves the mechanics of uid ow. All rheological measurements of uid ow properties should be made under laminar ow conditions. Laminar ow is ow wherein all particle movement is in layers directed by the shearing force. For rotational systems, this means all uid movement must be circumferential. When the inertial forces on the uid become too great, the uid can break into turbulent ow wherein the movement of uid particles becomes random and the ow can not be analyzed with standard math models. This turbulence creates a falsely high Viscometer reading with the degree of non-linear increase in reading being directly related to the degree of turbulence in the uid.

For the following geometries, we have found that an approximate transition point to turbulent ow occurs:

1) No. 1 LV Spindle: 15 cP at 60 RPM

2) No. 1 RV Spindle: 100 cP at 50 RPM

3) UL Adapter: 0.85 cP at 60 RPM

Turbulent conditions will exist in these situations whenever the RPM/cP ratio exceeds the values listed above.

Eect on accuracy when using accessory devices

The Brookeld viscometer has a stated accuracy of +/- 1% of the range in use. This stated accuracy applies when the viscometer is used in accordance with the operating instructions detailed in the instrument instruction manual and the calibration test uid is used in accordance with the instructions provided by the uid supplier (including the critical parameters of temperature control and stated uid accuracy). Brookeld’s accuracy statement of +/- 1% of the range in use applies to the Brookeld rotational viscometer when used with the standard spindles supplied with the instrument, including LV spindles 1 through 4 (supplied with LV series viscometers), RV spindles 2 through 7 (supplied with RV series viscometers), and HV series spindles 2 through 7 (supplied with HA series viscometers and HB series viscometers) in a 600 ML low form Grifn beaker.

Brookeld offers a range of accessories for use with the Brookeld viscometer to accommodate special measurement circumstances. These accessories, while offering added capability to the user, also contribute to an expanded measurement tolerance beyond the instrument accuracy of +/- 1% of the range in use. This expanded measurement tolerance is a function of many parameters including spindle geometry, accessory alignment accuracy, sample volume requirement, and sample introduction techniques. The effect of these

Brookeld Engineering Labs., Inc. Page 59 Manual No. M/03-165-D0410

Page 60

elements on measurement tolerance must be considered when verifying the calibration of your Brookeld viscometer. Sample temperature in all test circumstances is very important, and will also add an additional expanded tolerance depending on the temperature control system and the calibration verication tests begin with the standard viscometer spindles as detailed above. Once the calibration of the viscometer itself is conrmed, the expanded tolerance of the measurement system may be determined using accessory devices. In many cases this additional tolerance will be very minimal, but as a general statement, the addition of +/- 1% of the range in use is reasonable for accessories.

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Page 61

Appendix C - Variables in Viscosity Measurements

As with any instrument measurement, there are variables that can affect a Viscometer measurement. These variables may be related to the instrument (Viscometer), or the test uid. Variables related to the test uid deal with the rheological properties of the uid, while instrument variables would include the Viscometer design and the spindle geometry system utilized.

Rheological Properties

Fluids have different rheological characteristics that can be described by Viscometer measurements. We can then work with these uids to suit our lab or process conditions.

There are two categories of uids:

Newtonian - These uids have the same viscosity at different Shear Rates (different RPMs)

and are called Newtonian over the Shear Rate range they are measured.

Non-Newtonian - These uids have different viscosities at different shear rates (different

RPMs). They fall into two groups:

1) Time Independent non-Newtonian

2) Time Dependent non-Newtonian

The time dependency is the time they are held at a given Shear Rate (RPM). They are non-Newtonian, and when you change the Viscometer spindle speed, you get a different viscosity.

Time Independent

Pseudoplastic - A pseudoplastic material displays a decrease in viscosity with an increase

in shear rate, and is also known as “shear thinning”. If you take Viscometer readings from a low to a high RPM and then back to the low RPM, and the readings fall upon themselves, the material is time independent pseudoplastic and shear thinning.

Time Dependent

Thixotropic - A thixotropic material has decreasing viscosity under constant shear rate.

If you set a Viscometer at a constant speed recording cP values over time and nd that the cP values decrease with time, the material is thixotropic.

Brookeld publication, “More Solutions to Sticky Problems” includes a more detailed discussion of rheological properties and non-Newtonian behavior.

Viscometer Related Variables

Most uid viscosities are found to be non-Newtonian. They are dependent on Shear Rate and the spindle geometry conditions. The specications of the Viscometer spindle and chamber geometry will affect the viscosity readings. If one reading is taken at 2.5 rpm, and a second at 50 rpm, the two cP values produced will be different because the readings were made at different shear rates. The faster the spindle speed, the higher the shear rate.

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Page 62

The shear rate of a given measurement is determined by: the rotational speed of the spindle, the size and shape of the spindle, the size and shape of the container used and therefore the distance between the container wall and the spindle surface.

A repeatable viscosity test should control or specify the following:

1) Test temperature

2) Sample container size (or spindle/chamber geometry)

3) Sample volume

4) Viscometer model

5) Spindle used

6) Whether or not to attach the guard leg

7) Test speed or speeds (or the shear rate)

8) Length of time or number of spindle revolutions to record viscosity.

9) How sample was prepared and/or loaded into container.

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Page 63

Appendix D - Spindle and Model Codes

Each spindle has a two digit entry code which is entered via the keypad on the DV-II+Pro. The entry code allows the DV-II+Pro to calculate Viscosity, Shear Rate and Shear Stress values.

Each spindle has two constants which are used in these calculations. The Spindle Multiplier Constant (SMC) used for viscosity and shear stress calculations, and the Shear Rate Constant (SRC), used for shear rate and shear stress calculations. Note that where SRC = 0, no shear rate/ shear stress calculations are done and the data displayed is zero (0) for these functions.

Table D1

SPINDLE ENTRY CODE SMC SRC

RV1 01 1 0

RV2

RV3

RV4

RV5 05

RV6

RV7 07

HA1 01 1 0

HA2 02 4 0

HA3 03 10 0

HA4 04 20 0

HA5 05 40 0

HA6 06 100 0

HA7 07 400 0

HB1 01 1 0

HB2 02 4 0

HB3 03 10 0

HB4 04 20 0

HB5 05 40 0

HB6 06 100 0

HB7 07 400 0

LV1 61 6.4 0

LV2 62 32 0

LV3 63 128 0

LV4 or 4B2 64 640 0

LV5 65 1280 0

LV-2C 66 32 0.212

LV-3C 67 128 0.210

Spiral 70 105 0.677

T-A 91 20 0

T-B 92 40 0

T-C 93 100 0

03 10

06 100

4 0

20 0

400

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Page 64

SPINDLE ENTRY CODE SMC SRC

T-D 94 200 0

T-E 95 500 0

T-F 96 1000 0

ULA 00 0.64 1.223

DIN-81 81 3.7 1.29

DIN-82 82 3.75 1.29

DIN-83 83 12.09 1.29

DIN-85 85 1.22 1.29

DIN-86 86 3.65 1.29

DIN-87 87 12.13 1.29

SC4-14 14 125 0.4

SC4-15 15 50 0.48

SC4-16 16 128 0.29

SC4-18 18 3.2 1.32

SC4-21 21 5 0.93

SC4-25 25 512 0.22

SC4-27 27 25 0.34

SC4-28 28 50 0.28

SC4-29 29 100 0.25

SC4-31 31 32 0.34

SC4-34 34 64 0.28

CPE-40 40 0.327 7.5

CPE-41 41 1.228 2

CPE-42 42 0.64 3.8

CPE-51 51 5.178 3.84

CPE-52 52 9.922 2

V-71 71 2.62 0

V-72 72 11.1 0

V-73 73 53.5 0

V-74 74 543 0

V-75 75 213 0

Brookeld Engineering Labs., Inc. Page 64 Manual No. M/03-165-D0410

Table D1 Continued

Page 65

Table D2 lists the model codes and spring torque constants for each Viscometer model.

Table D2

MODEL TK

LVDV-II+ 0.09373 LV

2.5LVDV-II+ 0.2343 2.5 LV

5LVDV-II+ 0.4686 5 LV

1/4 RVDV-II+ 0.25 0.25 RV

1/2 RVDV-II+ 0.5 0.5 RV

RVDV-II+ 1 RV

HADV-II+ 2 HA

2HADV-II+ 4 2 HA

2.5HADV-II+ 5 2.5 HA

HBDV-II+ 8 HB

2HBDV-II+ 16 2 HB

2.5HBDV-II+ 20 2.5 HB

MODEL CODE ON DV-II+

SCREEN

The full scale viscosity range for any DV-II+Pro model and spindle may be calculated using the equation:

Full Scale Viscosity Range

[cP] = TK * SMC *

10,000

RPM

where:

TK = DV-II+Pro Torque Constant from Table D2 SMC = Spindle Multiplier Constant from Table D1

The Shear Rate calculation is:

Shear Rate (

) = SRC * RPM

Sec

where: SRC = Shear Rate Constant from Table D1

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Page 66

Appendix E - Calibration Procedures

The accuracy of the DV-II+Pro is veried using viscosity standard uids which are available from Brookeld Engineering Laboratories or your local Brookeld agent. Viscosity standards are Newtonian, and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards, calibrated at 25°C, are shown in Table E1 (Silicone Oils) and Table E2 (Mineral Oils).

For more help you can go to the website,

www.brookeldengineering.com, and download the video.

Container size: For Viscosity Standards < 30,000 cP, use a 600 ml Low Form Grifn Beaker

having a working volume of 500 ml.

For Viscosity Standards

≥ 30,000 cP, use the uid container.

Inside Diameter: 3.25”(8.25cm) Height: 4.75”(12.1cm)

Note: Container may be larger, but may not be smaller.

Temperature: As stated on the uid standard label: (+/-) 0.1°C

Conditions: The DV-II+Pro should be set according to the operating instructions. The water

bath must be stabilized at test temperature. Viscometers with the letters “LV” or “RV” in the model designation must have the guard leg attached (see page 65 for more information on the guard leg).

Normal 25ºC Standard Fluids

Viscosity (cP) Viscosity (cP)

5 5,000 HT-30,000

10 12,500 HT-60,000

50 30,000 HT-100,000

100 60,000

500 100,000 **25ºC, 93.3ºC, 149ºC

1,000 Refer to Brookeld catalog for more information

High Temperature Standard Fluids

Three Viscosity/Temperatures**

Table E-1

MINERAL OIL VISCOSITY STANDARD FLUIDS

BEL Part No. Viscosity (cP) 25ºC

B29 29

B200 200

B600 600

B1060 1,060

B2000 2,000

B10200 10,200

B21000 21,000

B73000

B200000 200,000

B360000 360,000

Brookeld Engineering Labs., Inc. Page 66 Manual No. M/03-165-D0410

73,000

Table E-2

Page 67

Brookeld Viscosity Standard Fluid General Information

We recommend that Brookeld Viscosity Standard Fluids be replaced on an annual basis, one year from date of initial use. These uids are pure silicone and are not subject to change over time. However, exposure to outside contaminants through normal use requires replacement on an annual basis. Contamination may occur by the introduction of solvent, standard of different viscosity or other foreign material.

Viscosity Standard Fluids may be stored under normal laboratory conditions. Disposal should be in accordance with state, local and federal regulations as specied on the material safety data sheet.

Brookeld Engineering Laboratories does not recertify Viscosity Standard Fluids. We will issue duplicate copies of the Certicate of Calibration for any uid within two years of the purchase date. Brookeld Viscosity Standard Fluids are reusable provided they are not contaminated. Normal practice for usage in a 600 ml beaker is to return the material from the beaker back into the bottle. When using smaller volumes in accessories such as Small Sample Adapter, UL Adapter or Thermosel, the uid is normally discarded.

Calibration Procedure for LV(#1-4) and RV,HA,HB(#1-7) Brookeld Spindles

1) Place the viscosity standard uid (in the proper container) into the water bath.

2) Lower the DV-II+Pro into measurement position (with guard leg if LV or RV series Viscometer is used).

3) Attach the spindle to the Viscometer. If you are using a disk-shaped spindle, avoid trapping air bubbles beneath the disk by rst immersing the spindle at an angle, and then connecting it to the Viscometer.

4) The viscosity standard uid, together with the spindle, should be immersed in the bath for a minimum of 1 hour, stirring the uid periodically, prior to taking measurements.

5) After 1 hour, check the temperature of the viscosity standard uid with an accurate thermometer.

6) If the uid is at test temperature (±0.1°

C of the specied temperature, normally 25°C), measure

the viscosity and record the Viscometer reading. Note: The spindle must rotate at least ve (5)

times before readings are taken.

7) The viscosity reading should equal the cP value on the uid standard to within the combined accuracies of the Viscometer and the viscosity standard (as discussed in the section entitled, Interpretation of Calibration Test Results) which appears later in this section.

Calibration Procedure for a Small Sample Adapter

Brookeld recommends a two step check. First verify the calibration of the viscometer using the standard viscometer spindles (LV1-4, RV2-7, HA2-7 and HB2-7 or cone/plate spindles) as detailed in this appendix. Second verify the calibration of the viscometer using the Small Sample Adapter. The use of an accessory device may increase the accuracy of measurement associated with the DV-II+Pro.

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When a Small Sample Adapter is used, the water jacket is connected to the water bath and the water is stabilized at the proper temperature:

1) Put the proper amount of viscosity standard uid into the sample chamber. The amount varies with each spindle/chamber combination. (Refer to the Small Sample Adapter instruction manual).

2) Place the sample chamber into the water jacket.

3) Put the spindle into the test uid and attach the extension link, coupling nut and free hanging spindle (or directly attach the solid shaft spindle) to the DV-II+Pro.

4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to reach test temperature.

5) Measure the viscosity and record the Viscometer reading.

least ve (5) times before readings are taken.

Note: The spindle must rotate at

Calibration Procedure for a Thermosel System

Brookeld recommends a two step check. First verify the calibration of the viscometer using the standard viscometer spindles (LV1-4, RV2-7, HA2-7 and HB2-7 or cone/plate spindles) as detailed in this appendix. Second verify the calibration of the viscometer using the Thermosel. The use of an accessory device may increase the accuracy of measurement associated with the DV-II+Pro.

When a Thermosel System is used, the controller stabilizes the Thermo Container at the test temperature.

1) Put the proper amount of HT viscosity standard uid into the HT-2 sample chamber. The amount varies with the spindle used. (Refer to the Thermosel instruction manual).

2) Place the sample chamber into the Thermo Container.

3) Put the spindle into the test uid and attach the extension link, coupling nut and free hanging spindle (or directly attach the solid shaft spindle) to the DV-II+Pro.

4) Allow 30 minutes for the viscosity standard, sample chamber and spindle to reach test temperature.

5) Measure the viscosity and record the Viscometer reading.

least ve (5) times before readings are taken.

Note: The spindle must rotate at

Calibration Procedure using UL or DIN UL Adapters

Brookeld recommends a two step check. First verify the calibration of the viscometer using the standard viscometer spindles (LV1-4, RV2-7, HA2-7 and HB2-7 or cone/plate spindles) as detailed in this appendix. Second verify the calibration of the viscometer using the UL or DIN Adapters. The use of an accessory device may increase the accuracy of measurement associated with the DV-II+Pro.

When a UL or DIN UL Adapter is used, the water bath is stabilized at the proper temperature:

1) Put the proper amount of viscosity standard uid into the UL Tube. (Refer to the UL Adapter instruction manual).

2) Attach the spindle (with extension link and coupling nut) onto the DV-II

3) Attach the tube to the mounting channel.

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+Pro.

Page 69

4) Lower the tube into the water bath reservoir, or if using the ULA-40Y water jacket, connect

the inlet/outlets to the bath external circulating pump.

5) Allow 30 minutes for the viscosity standard, sample chamber and spindle to reach test

temperature.

6) Measure the viscosity and record the Viscometer reading.

least ve (5) times before readings are taken.

Note: The spindle must rotate at

Calibration Procedure using a Helipath Stand and T-Bar Spindles

When a Helipath Stand and T-Bar spindles are used:

1) Remove the T-bar spindle and select a standard LV(#1-4) or RV,HA,HB(#1-7) spindle. Follow

the procedures for LV(#1-4) and RV,HA,HB(#1-7) Brookeld spindles outlined above.

2) T-Bar spindles should not be used for verifying calibration of the DV-II

Viscometer.

Calibration Procedure for Spiral Adapter

Brookeld recommends a two step check. First verify the calibration of the viscometer using the standard viscometer spindles (LV1-4, RV2-7, HA2-7 and HB2-7 or cone/plate spindles) as detailed in this appendix. Second verify the calibration of the viscometer using the Spiral Adapter. The use of an accessory device may increase the accuracy of measurement associated with the DV-II+Pro.

1) Place the viscosity standard uid (in the proper container) into the water bath.

2) Attach the spindle to the viscometer. Attach chamber (SA-1Y) and clamp to the viscometer.

3) Lower the DV-II

+Pro into measurement position. Operate the viscometer at 50 or 60 RPM

until the chamber is fully ooded.

4) The viscosity standard uid, together with the spindle, should be immersed in the bath for a

minimum of 1 hour, stirring the uid periodically (operate at 50 or 60 RPM periodically), prior to taking measurements.

5) After 1 hour, check the temperature of the viscosity standard uid with an accurate

thermometer.

6) If the uid is at test temperature (

+/- 0.1°C of the specied temperature, normally 25°C),

measure the viscosity and record the viscometer reading. Note: The spindle must rotate at least

ve (5) times for one minute, whichever is greater before readings are taken.

7) The viscosity reading should equal the cP value on the viscosity uid standard to within the

combined accuracies of the viscometer and the standard (as discussed in the section entitled, Interpretation of Calibration Test Results). However, instrument accuracy is ±2% of the maximum viscosity range and not the standard 1%.

+Pro

Calibration Procedure for Cone/Plate Viscometers:

1) Follow the above procedures for mechanically adjusting the setting of the cone spindle to the

plate.

2) Refer to Appendix A, Table A1, and determine the correct sample volume required for the

selected spindle.

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3) Select a viscosity standard uid that will give viscosity readings between 10% and 100% of full scale range. Refer to Appendix B for viscosity ranges of cone spindles. Consult with Brookeld or an authorized dealer to determine which uid is appropriate.

It is best to use a viscosity standard uid that will be close to the maximum viscosity for a

given cone spindle/speed combination.

Example: LVDV-II+Pro Viscometer, Cone CP-42, Fluid 10

Having a viscosity of 9.7 cP at 25°C

At 60 RPM, the full scale viscosity range is 10.0 cP. Thus, the Viscometer reading should be

97% torque and 9.7 cP viscosity ± 0.197 cP (0.1 cP for the viscometer plus 0.097 cP for the uid). The accuracy is a combination of Viscometer and uid tolerance (refer to Interpretation of Calibration Test Results).

4) With the viscometer stopped, remove the sample cup and place the viscosity standard uid into the cup, waiting 10 minutes for temperature equilibrium.

5) Connect the sample cup to the Viscometer. Allow sufcient time for temperature to reach equilibrium. Typically 15 minutes is the maximum time that you must wait. Less time is required if spindle and cup are already at test temperature.

6) Measure the viscosity and record the Viscometer reading in both % torque and centipoise (cP).

Notes: 1) The spindle must rotate at least ve (5) times before a viscosity reading is

taken.

2) The use of Brookeld Viscosity Standard uids in the range of 5 cP to 5000 cP is

recommended for cone/plate instruments. Please contact Brookeld Engineering Laboratories or an authorized dealer if your calibration procedure requires more viscous standards.

3) Select a viscosity standard uid that will give viscosity readings between 10%

and 100% of full scale range. Refer to Appendix B for viscosity ranges of cone spindles. Do not use a silicone viscosity standard uid with a viscosity value greater than 5000 cP with a Cone/Plate Viscometer. Brookeld offers a complete range of mineral oil viscosity standards suitable for use with Cone/Plate Viscometers as shown in Table E2. Consult with Brookeld or an authorized

dealer to determine which uid is appropriate.

Interpretation of Calibration Test Results:

When verifying the calibration of the DV-II+Pro, the instrument and viscosity standard uid error must be combined to calculate the total allowable error.

The DV-II+Pro is accurate to (+/-) 1% of the range in use when using spindles LV1-4, RV2-7, HA2-7 and HB2-7. When using an accessory device with the DV-II+Pro such as Small Sample Adapter, UL Adapter, Thermosel, Spiral Adapter, and DIN Adapter the accuracy value may be increased. In general the increase in accuracy will be minimal, however, it could be as much as 1% for a total accuracy of +/- 2% of the range in use.

Brookeld Viscosity Standards Fluids are accurate to (+/-) 1% of their stated value.

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Example: Calculate the acceptable range of viscosity using RVDV-II+Pro with RV-3 Spindle

at 2 RPM; Brookeld Standard Fluid 12,500 with a viscosity of 12,257 cP at 25°C:

1) Calculate full scale viscosity range using the equation:

Full Scale Viscosity Range [cP] = TK * SMC *

10,000

RPM

Where:

TK - 1.0 from Table D2 SMC = 10 from Table D1

Full Scale Viscosity Range

10 * 10,000

50,000 cP

The viscosity is accurate to (+/-) 500 cP (which is 1% of 50,000)

2) The viscosity standard uid is 12,257 cP. Its accuracy is (+/-)1% of 12,257 or (+/-)122.57 cP.

3) Total allowable error is (122.57 + 500) cP = (+/-) 622.57 cP.

4) Therefore, any viscosity reading between 11,634.4 and 12,879.6 cP indicates that the Viscometer

is operating correctly. Any reading outside these limits may indicate a Viscometer problem. Contact the Brookeld technical sales department or your local Brookeld dealer/distributor with test results to determine the nature of the problem.

Example: Calculate the acceptable accuracy for viscosity measurement using LVDV-II+ Pro

with SC4-21 spindle in Small Sample Adapter at 6, 12, and 30 RPM. Brookeld viscosity standard uid 100 cPs has an actual value of 101.5 cP at 25ºC.

1) Calculate the full scale viscosity range either by using the Spindle Range Coefcient in

Appendix B of More Solutions to Sticky Problems or by using the Auto Range button on your viscometer.

The Spindle Range Coefcient for the 21 spindle on an LV Torque instrument is 4,688.

At 6 RPM, the Full Scale Range (FSR) viscosity is 781 cP. Allow +/- 1% for the viscometer

and +/- 1% for the Small Sample Adapter. Total allowable accuracy is:

+/- 2% x 781 cP = +/- 15.6 cP

A similar calculation at 12 RPM gives FSR = 391 cP: +/- 2% x 391 cP = +/- 7.8 cP

A similar calculation at 30 RPM gives FSR = 156 cP: +/- 2% x 156 cP = +/- 3.1 cP

2) The Viscosity Standard Fluid is 101.5 cP. Its accuracy is:

+/- 1% x 101.5 cP = +/- 1.015 cP or roughly +/- 1.0 cP for further calculations.

3) Total accuracy is the sum of the values n (1) and (2):

At 6 RPM, accuracy is: 15.6 cP + 1.0 cP = +/- 16.6 cP At 12 RPM, accuracy is: 7.8 cP + 1.0 cP = +/- 9.8 cP At 30 RPM, accuracy is: 3.1 cP = 1.0 cP = +/- 4.1 cP

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4) Therefore, at each speed, the acceptable windows within which the measured viscosity value

must lie is calculated relative to the viscosity value of the standard:

At 6 RPM: 84.9 cP to 118.1 cP At 12 RPM: 91.7 cP to 111.3 cP At 30 RPM: 97.4 cP to 105.6 cP

If your measured values fall outside of these windows, contact Brookeld or your authorized dealer to discuss your results and determine whether your instrument is out of calibration.

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Appendix F - The Brookeld Guardleg

The guard leg was originally designed to protect the spindle during use. The rst applications of the Brookeld Viscometer included hand held operation while measuring uids in a 55-gallon drum. It is clear that under those conditions the potential for damage to the spindle was great. Original construction included a sleeve that protected the spindle from side impact. Early RV guard legs attached to the dial housing and LV guard legs attached to the bottom of the pivot cup with a twist and lock mechanism.

The current guard leg is a band of metal in the shape of the letter U with a bracket at the top that attaches to the pivot cup of a Brookeld Viscometer/Rheometer. Because it must attach to the pivot cup, the guard leg cannot be used with a Cone/Plate instrument. A guard leg is supplied with all LV and RV series instruments, but not with the HA or HB series. It’s shape (shown in Figure F-1) is designed to accommodate the spindles of the appropriate spindle set; therefore, the RV guard leg is wider than the LV due to the large diameter of the RV #1 spindle. They are not interchangeable.

The calibration of the Brookeld Viscometer/Rheometer is determined using a 600 mL Low Form Grifn Beaker. The calibration of LV and RV series instruments includes the guard leg. The beaker wall (for HA/HB instruments) or the guard leg (for LV/RV instruments) dene what is called the “outer boundary” of the measurement. The spindle factors for the LV, RV, and HA/HB spindles were developed with the above boundary conditions. The spindle factors are used to convert the instrument torque (expressed as the dial reading or %Torque value) into centipoise. Theoretically, if measurements are made with different boundary conditions, e.g., without the guard leg or in a container other than 600 ml beaker, then the spindle factors found on the Factor Finder cannot be used to accurately calculate an absolute viscosity. Changing the boundary conditions does not change the viscosity of the uid, but it does change how the instrument torque is converted to centipoise. Without changing the spindle factor to suit the new boundary conditions, the calculation from instrument torque to viscosity will be incorrect.

Practically speaking, the guard leg has the greatest effect when used with the #1 & #2 spindles of the LV and RV spindle sets (Note: RV/HA/HB #1 spindle is not included in standard spindle set). Any other LV (#3 & #4) or RV (#3 - #7) spindle can be used in a 600 mL beaker with or without the guard leg to produce correct results. The HA and HB series Viscometers/Rheometers are not supplied with guard legs in order to reduce the potential problems when measuring high viscosity materials. HA/HB spindles #3 through #7 are identical to those spindle numbers in the RV spindle set. The HA/HB #1 & #2 have slightly different dimensions than the corresponding RV spindles. This dimensional difference allows the factors between the RV and HA/HB #1 spindles to follow the same ratios as the instrument torque even though the boundary conditions are different.

The recommended procedures of using a 600 mL beaker and the guard leg are difcult for some customers to follow. The guard leg is one more item to clean. In some applications the 500 ml of test uid required to immerse the spindles in a 600 mL beaker is not available. In practice, a smaller vessel may be used and the guard leg is removed. The Brookeld Viscometer/Rheometer will produce an accurate and repeatable torque reading under any measurement circumstance. However, the conversion of this torque reading to centipoise will only be correct if the factor used was developed for those specic conditions. Brookeld has outlined a method for recalibrating a Brookeld Viscometer/Rheometer to any measurement circumstance in More Solutions to Sticky Problems. It is important to note that for many viscometer users the true viscosity is not

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Page 74

as important as a repeatable day to day value. This repeatable value can be obtained without any

B-21KY

Guard Leg

B-20KY

Guard Leg

5 7/8

5 5/32

For RV Torque

For LV Torque

3 3/16

1 7/16

special effort for any measurement circumstance. But, it should be known that this type of torque reading will not convert into a correct centipoise value when using a Brookeld factor if the boundary conditions are not those specied by Brookeld.

The guard leg is a part of the calibration check of the Brookeld LV and RV series Viscometer/ Rheometer. Our customers should be aware of its existence, its purpose and the effect that it may have on data. With this knowledge, the viscometer user may make modications to the recommended method of operation to suit their needs.

Figure F-1

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Appendix G - Speed Sets

The following speed sets and custom speeds are selectable from the SETUP menu option. All speeds are in units of RPM.

Interleave

Speed From

0.0

0.3 LVT

0.5 RVT

0.6 LVT

1.0 RVT

1.5 LVT

2.0 RVF

2.5 RVT

3.0 LVT

4.0 RVF

5.0 RVT

6.0 LVT

10.0 RVT

12.0 LVT

20.0 RVT

30.0 LVT

50.0 TVT

60.0 LVT

100.0 RVT

Speed From

100.0 RVT

Sequential

0.0

0.3 LVT

0.6 LVT

1.5 LVT

3.0 LVT

6.0 LVT

12.0 LVT

30.0 LVT

60.0 LVT

0.0

0.5 RVT

1.0 RVT

2.0 RVF

2.5 RVT

4.0 RVF

5.0 RVT

10.0 RVT

20.0 RVT

50.0 RVT

Custom

Speed Speed Speed

0.0 3.0 100.0

0.01 4.0 105.0

0.03 5.0 120.0

0.05 6.0 135.0

0.07 7.5 140.0

0.09 8.0 150.0

0.1 10.0 160.0

0.2 12.0 180.0

0.3 15.0 200.0

0.4 17.0

0.5 20.0

0.6 22.0

0.7 25.0

0.8 30.0

0.9 35.0

1.0 40.0

1.1 45.0

1.2 50.0

1.4 60.0

1.5 70.0

1.8 75.0

2.0 80.0

2.5 90.0

The DV-II+Pro has the sequential speed set installed at Brookeld prior to shipment.

Note: Additional speeds are available when using Rheocalc32 Software (DV-II+Pro

in external mode - see section II.9).

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The DV-II+Pro can be programmed to select up to 18 of the above speeds for use at any one time. Speed 0.0 is automatically included as the 19th speed.

Page 76

Appendix H - Communications

When using the Brookeld Computer Cable (Brookeld part # DVP-80), the DV-II+Pro will output a data string at a rate of approximately 3 times per second. When using the Brookeld Printer Cable (Brookeld Part No. DVP-81), the output rate is 1.0 times per second. The DVII+Pro uses the following RS-232 parameters to output these strings:

Baud Rate 9600 Data Bits 8 Stop Bits 1 Parity None Handshake None

The following formulas should be used to calculate and display the Viscometer data after each packet of data is obtained from the DV-II+Pro.

Viscosity (cP) = 100 * TK * SMC * Torque

RPM

Shear Rate (

Shear Stress (

) = RPM * SRC

Sec

Dynes

) = TK * SMC * SRC * Torque

Where: RPM = Current Viscometer spindle speed in RPM TK = Viscometer torque constant from Appendix D, Table D2. SMC = Current spindle multiplier constant from Appendix D, Table D1. SRC = Current spindle shear rate constant from Appendix D, Table D1. Torque = Current Viscometer torque (%) expressed as a number between 0 and 100.

As an example, consider an LV Viscometer using an SC4-31 spindle, running at 30 RPM and currently displaying a Torque of 62.3 (%). First we list all of the given data and include model and spindle constants from Appendix D, Tables D1 and D2:

RPM = 30 from the example statement. TK = 0.09373 from Appendix D for an LV Viscometer. SMC = 32.0 from Appendix D for a type SC4-31 spindle. SRC = 0.34 from Appendix D for a type SC4-31 spindle. Torque = 62.3 from the example statement.

Applying this data to the above equations yields:

Viscosity (cP) = 100 * TK * SMC * Torque

RPM

= 100 * 0.09373 * 32.0 * 62.3 30

= 622.9 cP

Shear Rate (1/

) = RPM * SRC

Sec

= 30 * 0.34

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10.2

Sec

Page 77

Shear Stress (

Dynes

) = TK * SMC * SRC * Torque

= 0.09373 * 32.0 * 0.34 * 62.3

= 63.5

Dynes

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No Connection

Transmit Data (TxD)

No Connection

High Speed Print (Note 1)

Serial Ground

Analog Ground

Analog % Torque (Note 2)

Analog Temperature (Note 3)

DV-II+

Serial and Analog Outputs

Notes:

1. Placing a jumper across pins 4 and 9 causes the DV- II+ to output printer data at a 3 line-per

-second rate. No jumper across pins 4 and 9 retains the

once-per

-second printer output rate.

2. This is a 0-1 volt d.c. output where 0 volts corresponds to 0% torque and 1 volt corresponds to 100 % torque with a resolution of 1 millivolt (0.1%).

3. This is a 0-3.75 volt d.c. output where 0 volts corresponds to -100

C and

3.75 volts corresponds to +275 C with a resolution of 1 millivolt (0.1°C).

Analog Output:

Figure H1

The analog outputs for temperature and % torque are accessed from the 9-pin connector located on the rear panel of the DV-II+Pro. The pin connections are shown in Figure G1.

The output cable (Part No. DVP-96Y) connections are:

Red Wire: Temperature Output Black Wire: Temperature Ground White Wire: % Torque Output Green Wire: % Torque Ground

Note: Please contact Brookeld Engineering Laboratories or your local dealer/

distributor for purchase of the DVP-96Y analog output cable.

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Appendix I - Model S Laboratory Stand

CLAMP ASSEMBLY NOTE: “FRONT” FACES TOWARD YOU.

BROOKFIELD LABORATORY VISCOMETER

TENSION SCREW

ITEM PART # DESCRIPTION QTY.

1 VS-CRA-14S 14” UPRIGHT ROD AND CLAMP ASSEMBLY 1 VS-CRA-18S 18” UPRIGHT ROD AND CLAMP ASSEMBLY Optional 2 VS-2Y BASE, includes 2 VS-3 leveling screws 1 3 VS-3 LEVELING SCREW available separately or in assembly above 2 4 50S311832S01B SCREW 5/16 X 1” Hex Head 1 5 502028071S33B FLAT WASHER 5/16 X 7/8 X .071 1

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Unpacking

Check carefully to see that all the components are received with no concealed damage.

1 Base, VS-2, with 2 Leveling Screws, VS-3, packed in a cardboard carton 1 Upright Rod with attached Clamp Assembly

Assembly (Refer to Figure H1)

1. Remove the base assembly from the carton.

2. Remove the screw and washer from the upright rod. Place the rod and clamp assembly into the hole in the top of the base.

Note: The “Front” designation on the clamp assembly should face

toward you.

3. Rotate the rod/clamp assembly slightly until the slot on the bottom of the rod intersects the pin located in the base.

4. While holding the rod and base together, insert the slotted screw and washer as shown and tighten securely.

Viscometer Mounting

Insert the Viscometer mounting rod into the hole (with the cut-away slot) in the clamp assembly. Adjust the instrument level until the bubble is centered from right to left and tighten the clamp knob (clockwise). Use the leveling screws to “ne” adjust the viscometer level.

Note: If the Digital Viscometer cannot be leveled, check to insure that the rod is

installed with the gear rack facing forward.

Caution: Do not tighten the clamp knob unless the viscometer mounting rod is

inserted in the clamp assembly.

Operation

Rotate the UP/DOWN knob to raise or lower the viscometer. Adjust the tension screw if the UP/ DOWN movement of the viscometer head is not acceptable, i.e. too lose or too difcult.

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Appendix J - DVE-50A Probe Clip

RTD Probe

Hole

Squeeze Here when

installing RTD

Temperature probe

0 ml

500

400

300

200

100

USA

No. 14000

600 ml Low Form

Griffin Beaker

DVE–50 Probe Clip

RTD Temperature Probe

LV Guard Leg Assembly B-20KY

Probe Clip DVE-50

R TD Temperature Probe

Probe Clip DVE-50A is supplied with all model DV-II+Pro Viscometers, DV-III Rheometers, and Digital Temperature Indicators. It is used to attach the RTD temperature probe to the LV Guard Leg (Part No. B-20Y) or 600 ml low form Grifn beaker. Figure J1 is a view of the Probe Clip, showing the hole into which the RTD probe is inserted, and the slot which ts onto the LV guard leg. When inserting the RTD probe into the Probe Clip, the upper part of the Clip is compressed by squeezing the points shown in Figure J1.

Note: All Viscometer/Rheometer models — except LV — use the Probe Clip as

shown in Figure J3.

Figure J1

Figure J2 shows the Probe Clip (with RTD temperature probe installed) mounted on the LV guard leg.

Figure J3 shows the Probe Clip mounted in a 600 ml low form Grifn beaker. This mounting may be used with LV, RV, HA and HB series instruments.

Note: The RTD probe must be parallel to the beaker wall so as not to interfere with the

viscosity measurement.

Figure J2

Figure J3

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Appendix K - Fault Diagnosis and Troubleshooting

Listed are some of the more common problems that you may encounter while using your Viscometer.

❏ Spindle Does Not Rotate

✓ Make sure the viscometer is plugged in.

✓ Check the voltage rating on your viscometer (115, 220V); it must match the wall voltage.

✓ Make sure the motor is ON and the desired rpm is selected.

❏ Spindle Wobbles When Rotating or Looks Bent

✓ Make sure the spindle is tightened securely to the viscometer coupling.

✓ Check the straightness of all other spindles; replace if bent.

✓ Inspect viscometer coupling and spindle coupling mating areas and threads for dirt; clean

threads on spindle coupling with a 3/56 left-hand tap.

✓ Inspect threads for wear; if the threads are worn, the unit needs service (see Appendix M).

Check to see if spindles rotate eccentrically or wobble. There is an allowable runout of 1/32inch in each direction (1/16-inch total) when measured from the bottom of the spindle rotating

in air.

✓ Check to see if the viscometer coupling appears bent; if so, the unit is in need of service (see

Appendix M, “How to Return Your Viscometer”).

If you continue to experience problems with your viscometer, follow this troubleshooting section to help isolate potential problems.

❏ Perform an Oscillation Check*

✓ Remove the spindle and turn the motor OFF; select display to % torque mode.

✓ Gently push up on the viscometer coupling.

✓ Turn the coupling until the digital display reads 10-15 on the % display.

✓ Gently let go of the coupling.

✓ Watch the digital display; you should see a “run” of numbers next to the %; the “run” of

numbers should ultimately stop at 0.0 (+/- 0.1).

If the digital display does not return to ZERO, the unit is in need of service (see Appendix M, “How to Return Your Viscometer”).

* This procedure does not apply to instruments with ball bearing suspension.

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❏ Inaccurate Readings

✓ Verify spindle, speed and model selection.

✓ If % readings are under-range (less than 10%), the display will ash; change spindle and/or

speed.

✓ “EEE” on the digital display means the unit is over-range (greater than 100%); reduce speed

and/or change spindle.

✓ Verify test parameters: temperature, container, volume, method. Refer to:

• “More Solutions to Sticky Problems”, Section III

• “DV-II+Pro Viscometer Operating Instructions, Appendix C, “Variables in Viscosity Measurements.

✓ Perform a calibration check; follow the instructions in Appendix E.

✓ Verify tolerances are calculated correctly.

✓ Verify the calibration check procedures were followed exactly.

If the unit is found to be out of tolerance, the unit may be in need of service. See Appendix M for details on “How to Return Your Viscometer”.

❏ Viscometer Will Not Return to Zero

✓ Viscometer is not level

• Check with spindle out of the sample

• Adjust the laboratory stand

✓ Pivot point or jewel bearing faulty

• Perform calibration check

• Contact Brookeld Engineering Laboratories, Inc. or your Brookeld dealer for repair

❏ Display Reading Will Not Stabilize

✓ Special characteristic of sample uid. There is no problem with the viscometer.

• Refer to Appendix C

✓ Check for erratic spindle rotation.

• Verify power supply

• Contact Brookeld Engineering Laboratories, Inc. or your Brookeld dealer for repair

✓ Bent spindle or spindle coupling.

• Contact Brookeld Engineering Laboratories, Inc. or your Brookeld dealer for repair

✓ Temperature uctuation in sample uid

• Use temperature bath control.

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Page 84

❏ No Recorder Response

✓ Be Sure the viscometer is not at ZERO reading.

✓ Be sure the recorder is ON and not on STANDBY.

✓ Verify the range settings.

✓ Check cable leads for clean connection.

❏ Recorder Pen Moves in Wrong Direction

✓ Output polarity reversed

• Reverse leads

❏ Viscometer Will Not Communicate with PC

✓ Check the comm port and make sure the correct port is being utilized.

✓ Check the interconnecting cable for proper installation

✓ Check the Options menu and make sure the PC PROG is set to either “ON” or “OFF” in

accordance with the operating instructions for the program/procedure in use.

If the above do not rectify the problem, do the following:

✓ Shut off viscometer

✓ Attach printer.

✓ Press and hold the MOTOR ON/OFF and ENTER/AUTORANGE keys simulanteously while

turning the viscometer power on. Figure K1 appears on the viscometer display.

VISCOMETER SETUP ENTER TO START

Figure K1

✓ Press ENTER/AUTORANGE key and Figure J2 appears.

PRINT PARAM RAM?

NO#$ THEN ENTER

PRINT PARAM RAM? YES#$ THEN ENTER

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Figure K2

Page 85

✓ Scroll to YES and press the ENTER/AUTORANGE key. Figure K3 appears.

READY PRINTER ENTER TO START

Figure K3

✓ Press ENTER/AUTORANGE. Information similar to Figure K4 will appear on your

printer output.

Timed Stop Minutes 01 Seconds 30 RPM 50 Time to Torque Torque % 60 RPM 50 Print Interval Minutes 00 Seconds 05 Printer Port Parallel or Serial Parallel Last Spindle used 05 Special Spindle AA SMC 0000.000 Special Spindle AA SRC 00.000 Special Spindle BB SMC 0000.000 Special Spindle BB SRC 00.000 Special Spindle CC SMC 0000.000 Special Spindle CC SRC 00.000 Special Spindle DD SMC 0000.000 Special Spindle DD SRC 00.000 Display Units CGS Temperature Scale C Speed Set INTERLEAVE Viscometer Model RV Last BEVIS Program 1 Raw Temps 2E0C 00FE Torque Scale E19F

✓ Call Brookeld to review the information on your printer output.

✓ Figure K5 next appears on the viscometer display. Turn the viscometer power off.

Brookeld Engineering Labs., Inc. Page 85 Manual No. M/03-165-D0410

Figure K4

SETUP COMPLETE TURN POWER OFF

Figure K5

Page 86

Appendix L - Instrument Dimensions

13 21/64” [33.9 cm]

7 15/16” [20.2 cm]

4 9/64”

[10.5 cm]

3 3/16”

[8.1 cm]

6 63/64”

[17.7 cm]

15 41/64” [39.7 cm]

7 63/64”

[20.3 cm]

16 31/64” [41.9 cm]

11 3/16”

[28.4 cm]

VS-2Y

LAB STAND BASE ASSEMBLY

B-21Y

RV GUARD LEG

ASSEMBLY

DV-II+ PRO VISCOMETER

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Page 87

Appendix M - Warranty Repair and Service

Warranty

Brookeld Viscometers are guaranteed for one year from date of purchase against defects in materials and workmanship. They are certied against primary viscosity standards traceable to the National Institute of Standards and Technology (NIST). The Viscometer must be returned to Brookeld Engineering Laboratories, Inc. or the Brookeld dealer from whom it was purchased for no charge warranty service. Transportation is at the purchaser’s expense. The Viscometer should be shipped in its carrying case together with all spindles originally provided with the instrument. If returning to Brookeld please contact us for a return authorization number prior to shipping.

For a copy of the Repair Return Form, go to the Brookeld website,

www.brookeldengineering.com

For repair or service in the United States return to:

Brookeld Engineering Laboratories, Inc.

11 Commerce Boulevard

Middleboro, MA 02346 U.S.A.

Telephone: (508) 946-6200 FAX: (508) 923-5009

www.brookeldengineering.com

For repair or service outside the United States consult Brookeld Engineering Laboratories, Inc. or the dealer from whom you purchased the instrument.

For repair or service in the United Kingdom return to:

Brookeld Viscometers Limited

Brookeld Technical Centre

Stadium Way

Harlow, Essex CM19 5GX, England

Telephone: (44) 1279/451774 FAX: (44) 1279/451775

www.brookeld.co.uk

For repair or service in Germany return to:

Brookeld Engineering Laboratories Vertriebs GmbH

Hauptstrasse 18

D-73547 Lorch, Germany

Telephone: (49) 7172/927100 FAX: (49) 7172/927105

www.brookeld-gmbh.de

For repair or service in China return to:

Guangzhou Brookeld Viscometers and Texture Instruments Service Company Ltd.

Suite 905, South Tower, Xindacheng Plaza

193 Guangzhou Da Dao Bei, Yuexiu District

Guangzhou, 510075 P. R. China

Telephone: (86) 20/3760-0548 FAX: (86) 20/3760-0548

On-site service at your facility is also available from Brookeld. Please contact our Service

Department in the United States, United Kingdom, Germany or China for details.

Brookeld Engineering Labs., Inc. Page 87 Manual No. M/03-165-D0410

www.brookeld.com.cn

Page 88

BROOKFIELD ENGINEERING LABORATORIES, INC. • 11 Commerce Blvd. • Middleboro, MA 02346 • TEL: 508-946-6200 or 800-628-8139 FAX: 508-946-6262 • www.brook eldengineering.com • VTR1207

VISCOSITY TEST REPORT

DATE: FOR:

BY:

TEST INFORMATION:

SAMPLE MODEL SPINDLE RP

DIAL READING

% TORQUE

FACTOR

VISCOSITY

SHEAR

RATE

TEMP °C TIME NOTES

NCL

USIONS:

This tear-o sheet is a typical example of recorded test data. Please photocopy and retain this template so that additional copies may be made as needed.

Brookeld Engineering Labs., Inc. Page 88 Manual No. M/03-165-D0410