Brookfield DV-E Viscometer User Manual
BROOKFIELD DIGITAL VISCOMETER
MODEL DV-E
Operating Instructions
Manual No. M98-350-J0912
SPECIALISTS IN THE
MEASUREMENT AND
CONTROL OF VISCOSITY
with offices in
Boston • Chicago • London • Stuttgart • Guangzhou
:
BROOKFIELD ENGINEERING LABORATORIES, INC.
11 Commerce Boulevard, Middleboro, MA 02346 USA
TEL 508-946-6200
F
AX 508-946-6262
or 800-628-8139 (USA excluding MA)
I
NTERNET
http://www.brookfieldengineering.com
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Table of Contents
I. INTRODUCTION .......................................................................................... 5
I.1 Components ............................................................................................................. 5
I.2 Instrument Dimensions ........................................................................................... 7
I.3 Utilities ...................................................................................................................... 8
I.4 Specications ........................................................................................................... 8
I.5 Set-Up ........................................................................................................................ 9
I.6 Safety Symbols and Precautions ........................................................................... 9
I.7 Instrument Controls ............................................................................................... 10
I.8 Cleaning .................................................................................................................. 11
II. GETTING STARTED ................................................................................. 12
II.1 Power Up................................................................................................................ 12
II.2 Spindle Selection .................................................................................................. 12
II.3 Speed Selection & Setting.................................................................................... 13
II.4 Autorange and CGS or SI Units Selection .......................................................... 14
II.5 Out of Range .......................................................................................................... 15
II.6 Operation ............................................................................................................... 16
Appendix A - Viscosity Ranges ..........................................................................................17
Appendix B - Variables in Viscosity Measurement .............................................................20
Appendix C - Spindle and Model Codes ............................................................................22
Appendix D - Calibration Check Procedures......................................................................24
Appendix E - Model A Laboratory Stand ............................................................................30
Appendix F - The Brookeld Guardleg ...............................................................................32
Appendix G - Fault Diagnosis and Troubeshooting............................................................ 34
Appendix H - Online Help and Other Resources ...............................................................35
Appendix I - Warranty Repair and Service ........................................................................36
Viscosity Test Report ...................................................................................37 (Tear out page)
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I. INTRODUCTION
I. INTRODUCTION
The Brookeld DV-E 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 mathematics
of viscosity in the Brookeld publication “More Solutions to Sticky Problems”, a copy of which
was included with your DV-E and can be downloaded in pdf form from the Brookeld website,
www.brookeldengineering.com.
The principle of operation of the DV-E is to rotate 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 deection. Spring deection is measured with a rotary transducer which provides a torque
signal. The measurement range of a DV-E (in centipoise or milliPascal seconds) is determined
by the rotational speed of the spindle, the size and shape of the spindle, the container in which the
spindle is rotating, and the full scale torque of the calibrated spring.
There are four basic spring torque series offered by Brookeld:
Spring Torque
Model dyne-cm milli Newton-m
LVDV-E 673.7 0.0673
RVDV-E 7,187.0 0.7187
HADV-E 14,374.0 1.4374
HBDV-E 57,496.0 5.7496
The higher the spring torque, the higher the measurement range. The viscosity measurement range
for each spring torque may be found in Appendix A.
All units of measurement are displayed according to either the CGS (cP) system or the SI
(mPa•s) system.
1. Viscosity appears in units of centipoise (shown as “cP”) or milliPascal-seconds (shown
as “mPa•s”) on the DV-E display.
2. Torque appears in units of dyne-centimeters or Newton-meters (shown as percent “%”
in both cases) on the DV-E display.
The equivalent units of measurement in the SI system are calculated using the following conversions:
SI CGS
Viscosity: 1 mPa•s = 1 cP
Torque: 1 Newton-m = 10
7
dyne-cm
References to viscosity throughout this manual are made in CGS units. The DV-E Viscometer
provides equivalent information in SI units (see Section II.4 AUTORANGE).
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 Brookeld Engineering or your local Brookeld agent
immediately. Any shipping damage must be reported to the carrier.
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Component Part Number Quantity
DV-E Viscometer varies 1
Model A laboratory stand Model AK 1
Spindle Set with Case:
LVDV-E set of four spindles SSL 1 or
RVDV-E set of six spindles (#2-#7) SSR 1 or
HA/HBDV-E set of six spindles (#2-#7) SSH 1
Power Cord:
for 115 VAC DVP-65 1 or
for 230 VAC DVP-66 1
Guard Leg:
LVDV-E B-20Y 1 or
RVDV-E B-21Y 1
Carrying Case 001Y 1
Shipping Cap B-30-3 1
DV-E
Viscometer
Shipping
Cap
Guard Leg
Model A
Laboratory Stand
Figure I-1
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I.2 Instrument Dimensions
11 47/64”
[29.8 cm]
4 5/64”
[10.4 cm]
DV-E VISCOMETER
6”
[15.3 cm]
B-20Y
LV GUARD LEG
ASSEMBLY
1 7/16”
[3.7 cm]
10 7/8”
[27.6 cm]
14 41/64”
[37.2 cm]
LAB STAND BASE ASSEMBLY
Figure I-2
7 13/32”
[18.8 cm]
16 23/64”
[41.5 cm]
VS-1Y
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I.3 Utilities
Input Voltage: 115 VAC or 230 VAC
Input Frequency: 50/60 Hz
Power Consumption: Less than 20 WATTS
Power Cord Color Code:
United States
Outside United States
Hot (live) Black Brown
Neutral White Blue
Ground (earth) Green Green/Yellow
Input voltage can only be internally selected by a qualied technician from
Brookeld or an authorized Brookeld dealer.
I.4 Specications
Speeds: 0.3, 0.5, 0.6, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 10, 12, 20, 30, 50, 60, 100 RPM
Weight: Gross Weight 20 lb 9 kg
Net Weight 17 lb 7.7 kg
Carton Volume 1.65 cu ft 0.05 m
3
Carton Dimension 19 x 10 x 15 in 48 x 25 x 38 cm
Operating Environment: 0°C to 40°C Temperature Range (32°F to 104°F)
20% - 80% R.H.: non-condensing atmosphere
Accuracy: ±1.0% Full Scale Range in Use (See Appendix D for details)
Reproducibility: 0.2% of Full Scale Range
Electrical Certications:
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 Brookeld ofces and our network of representatives
and dealers can be found on our website: www.brookeldengineering.com.
Users outside of the European Union:
Please dispose of this product according to your local laws.
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I.5 Set-Up
Note: “IQOQPQ”, a guideline document for installation, operation and
performance validation for your DV-E Viscometer, can be downloaded
from our website: www.brookeldengineering.com.
1. To assemble the Model A Laboratory Stand, place the upright rod into the base (refer to
assembly instructions in Appendix E).
2. Insert the mounting rod on the back of the DV-E Viscometer into the hole on the clamp
assembly. (Refer to Appendix E).
3. The Viscometer must be leveled. The level is adjusted using the three leveling screws on
the base. Adjust so that the bubble level on top of the DV-E is centered within the circle.
Note: Check level peroiodically during use.
4. Remove the Viscometer shipping cap from the pivot cup. This cap is designed to protect the
Viscometer spindle coupling nut during shipment. Do not attempt to operate the Viscometer
with the shipping cap in place! Save this cap for future use.
5. Make sure that the power switch at the rear of the DV-E is in the OFF (0) position. Connect
the power cord to the socket on the back panel of the instrument and plug it into the appropriate
AC power line.
The AC input voltage and frequency must be within the appropriate range as shown on
the name plate of the viscometer.
The DV-E must be earth grounded via its power mains cable plug/socket for electrical
safety and to ensure against electronic failure!!
I.6 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 specic warning or caution information to avoid personal injury
or damage to the instrument.
Precautions
If this instrument is used in a manner not specied 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 cord from
the wall outlet.
The safety of any system, incorporating this instrument, is the responsibility of the
assembler of the system.
The user should ensure that the substances placed under test do not release poisonous,
toxic or ammable gases at the temperatures to which they are subjected to during the
testing.
I.7 Instrument Controls
The following describes each switch’s function:
MOTOR ON
Turns the motor ON or OFF.
AUTO RANGE
Presents the maximum (100% torque) viscosity
attainable using the selected spindle at the
selected speed. This value is referred to as full
scale range. The allowable error for the viscosity
measurement is ± 1% of full scale range.
Note: Pressing and holding the AUTO
RANGE key during power on
will enable the viscosity display
to be read in either CGS (cP) or
SI (mPa•s) units.
SPEED/SPINDLE SWITCH
Sets the viscometer in either speed select or spindle
select (see Table C-1 in Appendix C) mode. When
set in the left position, the operator may select
speed of rotation. When set in the right position,
the operator may select spindle.
Note: This is a three (3) position switch. We recommend that the switch be set to the
middle position when nished with spindle or speed adjustment. This will prevent
Figure I-2
an accidental change of parameters during a test.
SELECT KNOB
This knob is used to scroll through the available speed or spindle selections (see Table C-1 in
Appendix C). This knob is active when the switch is set to the left (speed) or right (spindle) position.
Rotate the knob clockwise to increase value and counter-clockwise to decrease value.
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I.8 Cleaning
Instrument and Keypad: Clean with dry, non-abrasive cloth. Do not use solvents
Immersed Components (spindles): Spindles are made of stainless steel. Clean with non-
Make sure the instrument is in a decent working environment (dust-fr ee, moderate
temperature, low humidity, etc.).
Make sure the instrument is on a level surface.
Hands/ngers must be clean and free of residual sample. Not doing so may result
in deposit build up on the upper part of the shaft and caue interference between
the shaft and the pivot cup.
Be sure to remove the spindle from the instrument prior to cleaning. Note lefthand thread. Severe instrument damage may result if cleaned in place.
or cleaners.
abrasive cloth and solvent appropriate for sample material
that is not aggressive to immersed components.
When cleaning, do not apply excessive force which may result in bending spindles.
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II. GETTING STARTED
II.1 Power Up
Turn the power switch (located on the rear panel) to the ON (I) position. This will result in the
following screen display:
BROOKFIELD DV-E
RV VISCOMETER
Figure II-1
After a few seconds, the following screen appears:
BROOKFIELD DV-E
VERSION: 1.00
Figure II-2
After a short time, the display will clear and the default screen is displayed:
cP
10OFF % S02
Figure II-3
II.2 Spindle Selection
LVDV-E Viscometers are provided with a set of four spindles
and a narrow guardleg; RVDV-E Viscometers come with a set
of six spindles and a “wider” guardleg; HADV-E and HBDV-E
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 to
the male coupling nut (see Figure II-4). Note that the spindles
and coupling have a left-hand thr ead. The lower shaft should
be held in one hand (lifted slightly), and the spindle screwed to
the left. The face of the spindle nut and the matching surface
on the coupling nut shaft should be smooth and clean to prevent
eccentric rotation of the spindle. Spindles can be identied by
the number on the side of the spindle coupling nut.
The DV-E must have a Spindle Entry Code number to calculate
viscosity values. The DV-E memory contains parameters for
all standard Brookeld spindles and the two digit entry code
for each spindle (the complete list of spindle entry codes may
be found in Appendix C).
Note: The DV-E will display the Spindle Entry Code
which was in use when the power was turned off.
Figure II-4
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