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Home  >>  Products  >>  Viscosity  >>  Cone/Plate Viscometers
Cone/Plate Viscometers

Wells-Brookfield Digital Display Model

Cone/Plate Viscometers

 

The Wells-Brookfield Cone/Plate Viscometer gives researchers a sophisticated instrument for routinely determining absolute viscosity of fluids in small sample volumes. Its cone and plate geometry provides the precision necessary for development of complete rheological data.

 

Cone/Plate Diagram



FEATURES TECHNICAL DATA MORE INFO VIDEO PRICE LIST
 

 

Features

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  • Cone/plate geometry generates defined shear rates
  • Indicates absolute viscosity in centipoise (mPa•s)
  • Small sample volume (0.5 to 2ml)
  • Sample temperature precisely measured and controlled
  • Wide selection of shear rates

 

Technical Data

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LV Series Viscometers & Rheometers Cone/Plate Ranges - Centipoise (mPa•s)
Cone Spindle* LVDV-1M LVDV2T** LVDV3T Shear Rate*** (sec-1) Sample Volume (mL)
CPA-40Z CP-40 0.3 - 1,023 0.2 - 3,070 0.1 - 3,070 7.50N 0.5
CPA-41Z CP-41 1.2 - 3,837 0.6 - 11,510

0.5 - 11,510

2.00N 2.0
CPA-42Z CP-42 0.6 - 2,000 0.3 - 6,000 0.2 - 6,000 3.84N 1.0
CPA-51Z CP-51 4.9 - 16,000 2.4 - 48,000 1.9 - 48,000 3.84N 0.5
CPA-52Z CP-52 9.3 - 30,720 4.6 - 92,160 3.7 - 92,160 2.00N 0.5
RV Series Viscometers & Rheometers Cone/Plate Ranges - Centipoise (mPa•s)
Cone Spindle* RVDV-1M RVDV2T** RVDV3T Shear Rate*** (sec-1) Sample Volume (mL)
CPA-40Z CP-40 3.3 - 10,900 1.6 - 32,700 1.3 - 32,700 7.50N 0.5
CPA-41Z CP-41 12.3 - 40,933 6.1 - 122,800

4.9 - 122,800

2.00N 2.0
CPA-42Z CP-42 6.4 - 21,300 3.2 - 64,000 2.6 - 64,000 3.84N 1.0
CPA-51Z CP-51 51.2 - 170,666 25.6 - 512,000 20.5 - 512,000 3.84N 0.5
CPA-52Z CP-52 98.3 - 327,666 49.2 - 983,000 39.3 - 983,000 2.00N 0.5
HA Series Viscometers & Rheometers Cone/Plate Ranges - Centipoise (mPa•s)
Cone Spindle* HADV-1M HADV2T** HADV3T Shear Rate*** (sec-1) Sample Volume (mL)
CPA-40Z CP-40 6.6 - 21,800 3.3 - 65,400 2.6 - 65,400 7.50N 0.5
CPA-41Z CP-41 24.6 - 81,866 12.3 - 245,600

9.8 - 245,600

2.00N 2.0
CPA-42Z CP-42 12.8 - 42,600 6.4 - 128,000 5.1 - 128,000 3.84N 1.0
CPA-51Z CP-51 102.4 - 341,333 51.2 - 1,024,000 41.0 - 1,024,000 3.84N 0.5
CPA-52Z CP-52 196.6 - 655,333 98.3 - 1,966,000 78.6 - 1,966,000 2.00N 0.5
HB Series Viscometers & Rheometers Cone/Plate Ranges - Centipoise (mPa•s)
Cone Spindle* HBDV-1M HBDV2T** HBDV3T Shear Rate*** (sec-1) Sample Volume (mL)
CPA-40Z CP-40 26.2 - 87,200 13.1 - 261,600 10.5 - 261,600 7.50N 0.5
CPA-41Z CP-41 98.3 - 327,466 49.1 - 982,400

39.3 - 982,400

2.00N 2.0
CPA-42Z CP-42 51.2 - 170,666 25.6 - 512,000 20.5 - 512,000 3.84N 1.0
CPA-51Z CP-51 409.6 - 1,365,333 204.8 - 4,096,000 163.8 - 4,096,000 3.84N 0.5
CPA-52Z CP-52 786.4 - 2,621,333 393.2 - 7,864,000 314.6 - 7,864,000 2.00N 0.5
*CPA- refers to electronic gap adjustment, while CP- refers to manual gap adjustment
** Maximum viscosity range shown is at 0.1rpm
***N=rpm Example: RV Viscometer with CPA-42 spindle at 10rpm has shear rate 3.84 x 10=38.4 sec1

 

Principle of Operation

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The Wells-Brookfield Cone/Plate Viscometer is a precise torque meter which is driven at discrete rotational speeds. The torque measuring system, which consists of a calibrated beryllium-copper spring connecting the drive mechanism to a rotating cone, senses the resistance to rotation caused by the presence of sample fluid between the cone and a stationary flat plate.

The resistance to the rotation of the cone produces a torque that is proportional to the shear stress in the fluid. The amount of torque is indicated either on a dial or digital display, depending on model. This reading is easily converted to absolute centipoise units (mPa.s) from precalculated range charts. Alternatively, viscosity can be calculated from the known geometric constants of the cone, the rate of rotation, and the stress related torque.

Cone/Plate Viscometer

 

Wells-Brookfield Cone/Plate Viscometers

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Gap Setting Technology

Electronic Gap Setting Technology allows fast set-up time and minimizes the possibility of "gap" adjustment errors. A bright LED lights up when a "hit point" is achieved. A simple turn of the micrometer adjustment ring and the "gap" is set, reducing the time required associated with manual detection methods. The Electronic Gap Setting Technology is a standard feature on all of the Wells-Brookfield Cone/Plate Digital Viscometers/Rheometers.

The stationary plate forms the bottom of a sample cup which can be removed, filled with .5 mL to 2.0 mL of sample fluid (depending on cone in use), and remounted without disturbing the calibration. The sample cup is jacketed and has fittings for connection to a constant temperature circulating bath.

The system is accurate to within ±1.0% of the viscosity range. Repeatability is to within ±0.2%. Working temperature range is from 0°C to 100°C.

 

Options

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Embedded Temperature Probe can be installed in sample cup for precise temperature measurement. REQUIRES TECHNICAL ASSISTANCE AS TO SPECIFIC APPLICATION.

Purge Fittings can be installed to maintain a controlled atmosphere in the sample cup. Luer Fittings can be installed to allow sample material to be introduced without having to remove sample cup.

Luer Fittings can be installed to allow sample material to be introduced without having to remove the sample cup.

Embedded Temperature Probe in cup for Cone/Plate Viscometer provides accurate temperature measurement of sample during test. Also shown are standard hose connections to constant temperature circulating fluid bath.

Temperature Probe

 

Cone Spindles

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Various cone spindles are available for use with Wells-Brookfield Cone/Plate instruments. One cone spindle is provided with the instrument & is calibrated for use with the same cup. Additional cone spindles may be purchased and will be calibrated for use with the sample cup

Note: Cones ordered after purchase require cups to be returned for calibration to new cone.


Technical Data
Cone Spindle Angle (deg.) Radius (cm)
CP-40 or CPA-40Z 0.80 2.4
CP-41 or CPA-41Z 3.0 2.4
CP-42 or CPA-42Z 1.565 2.4
CP-51 or CPA-51Z 1.565 1.2
CP-52 or CPA-52Z 3.0 1.2
Temperature Probe

Optional embedded temperature probe
(shown with Luer and Purge fittings.)

 

Video

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Prices

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Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices

Instrument, Lab Stand, choice of one Cone Spindle and Sample Cup
Wells-Brookfield Cone & Plate (C/P) Viscometers
Programmable Rheometer (1, 3) DV3TCP LV/RV/HA/HB (8) $6,552.00
Programmable Viscometer (1, 3) DV2TCP LV/RV/HA/HB 5,405.00
Digital Viscometer (2, 3, 4) DV1MCP LV/RV/HA/HB 4,463.00
Options
(1) Optional RheocalcT Software with cable add 960.00
(2) Optional Wingather SQ Software with cable add 600.00
(3) With Temperature Probe in Sample Cup add 257.00
(4) With optional RTD Temperature Probe add 187.00
(8) Ball bearing suspension also available (not available in LV models) - please call for pricing
For Information on Brookfield Accessories Click Here



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