Cone and Plate Viscometer

This standard test for dynamic viscosity measurements is now faster and more accurate by use of new high precision microprocessor controls. As non-Newtonian fluids exhibit different viscosities relative to the shear rate applied, the cone and plate viscometer tightly controls it to 10,000S-1 (B.S. requirements) or to 12,000S-1 (ASTM). These are generally accepted to be representative of paint application via a roller or brush and so reflect ‘real world’ application. As most viscosity measurements are highly temperature sensitive the samples are placed on a temperature controlled plate which can be set from 5 to 65°C.

Complies to BS 3900;A7, ASTM D 4287, ISO 2884
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Digital Rotothinner™

The Rotothinner instrument uses a disc or ball shaped rotor to determine the viscosity of the sample under test. The results are displayed on the LCD screen in POISE units.

Rotothinners allow the operator to continuously monitor the sample’s viscosity whilst a solvent or thinner is added. This allows quick correction factors for use in the production batch when carried out quantitatively.

The viscosity is measured using a high quality microprocessor controlled d.c. motor . The robust construction of the Rotothinners means that they are suitable for use as both production and laboratory instruments. Supplied with a 250 ml sample tin.
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Krebs Viscometer

This traditional KREBS instrument uses a rotating paddle driven by falling weights to determine the paint viscosity. The viscosity value in Krebs units can be easily converted using the table supplied or by calculation by formula from the resultant value of total weight required to reach 200 rpm.
The robust and simple construction of this viscometer allows it to be used in various environments.
2 versions available: with tachometer or with stroboscope.

Features
Range: 54-140 KU (75-1000 g.)
Sturdy mechanical assembly & easy maintenance
Easy to read speed indication
Good value for money
Standard package: Viscometer, paddle rotor,
1 pint (500 ml) / Ø85 mm can,
Set of 7 weights (2 x 5g, 1 x 10g, 1 x 25g, 1 x 50g, 2 x 100g,
1 x 200g, 1 x 500g), AC/DC 12V adapter (for digital version)
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Digital Krebs Viscometer

Based on the popular traditional KREBS method, using a weight-driven rotating paddle to sense the paint viscosity at a constant 200 rpm, this modern digital instrument provides automated motor operation, without weights & pulley, allowing accurate direct reading in KU (Krebs units), mPa.s (cP) or g (gram). The conversion between these units is automatically calculated by the microprocessor and displayed on request. Sturdy construction allows for use either in a production environment or in the laboratory.
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Höppler Viscometer

An accurate and versatile instrument, suitable for absolute viscosity measurement of various transparent fluids such as lacquers, resins, oils, foods, cosmetics, chemicals etc. as well as gas products. The test method consists of timing the travel of a ball in a tube filled with the product
sample. The integrated water jacket, when connected to external circulating bath (optional, see p.15), allows temperature control from -20° to +120°C for high accuracy determinations.
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Spindle Viscometer

The VM range of spindle viscometers from Sheen Instruments, are the ideal solution for performing precise viscosity measurements quickly and efficiently. Ease of use and versatility enable them to be used in many industrial applications where the determination of fluid properties and behaviour is essential. The principle of measurement is simple, but reliable, based on the well-established method of measuring the resistance of a spindle rotating in the sample under test. The resultant torque measurement, rotational speed and spindle properties are then combined to automatically calculate the resultant viscosity value.
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Gel Strength Tester

Based on the Rotothinner design, this instrument is specially suited to assess the yield strength and consistency of thick paints and other materials such as gels and putties etc. A 250 ml can containing the sample is magnetically fastened onto a turntable, which is loaded with a calibrated spring
displaying an engraved scale of 0-450 gm/cm. When immersed into the sample, the flat 4 x 2 cm paddle spindle rotates automatically at 2 rpm, and drives the whole can & turntable.
After a peak reading followed by a short time of stabilisation, a steady torque value is indicated on the scale. Other paddle sizes are available on request.
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Penetrometer

An efficient & cost effective instrument, for consistency determinations of semi-solid to solid materials such as greases, waxes, cosmetics etc. The test method is based on measuring the depth of penetration of a standardised cone or needle into the material over a given time. 2 models available: automatic or manual, both compatible with penetration accessories, to be ordered separately according to the specific application.

Automatic Penetrometer
A programmable and motorised unit, for high accuracy consistency evaluations of various materials whilst simplifying testing procedures and minimizing set up time.
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Temperature Circulating Baths

Accurate temperature control during viscosity measurements is essential for reliable and repeatable results. It also allows the determination of product behaviour to be evaluated. All Sheen water baths are fitted with an insulated stainless steel tank for sample heating or cooling and a circulation pump with adjustable flow rate to suit a variety of external temperature control applications, e.g. connection to Autovisc or similar water jacket.

3 models available:
Tempmaster 100: from ambient + 5° to 100°C
Tempmaster 200: from ambient + 5° to 200°C
Tempmaster -10: from -10° to 100°C
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Flow Cups

These flow cups cover most of the standards specified in Britain, France, Germany, USA and by ISO.

With the exception of Zahn and Parlin (Brass) type all flowcups are precision machined from high quality aluminium and feature stainless steel nozzle inserts (depending upon the standard specification).
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Autovisc Flow Cup Timer

The Flow cup timer allows the user to standardise calibration and use of most flow cups, eliminating human error. An integral water jacket is provided for connection to an external waterbath, thus enabling close temperature control to be obtained.

The timer is activated automatically as the sample flows past an optical sensor. As soon as a break in the flow occurs the elapsed flow time is shown on the display.

Accuracy and repeatability within 0.5%. Suitable for use with all International specification flow cups other than Zahn and Frikmar cups.

Includes Flow Cup Timer Stand.
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Calibration Oils

Two formats of calibrated Viscosity Oils are available, Sheen Viscosity Oils and Cannon Viscosity Oils, both of which have been selected to cover a wide range of applications. Sheen Viscosity Oils are specifically formulated to meet all calibration requirements and offer high quality at an affordable price. They are UKAS certified & traceable conforming to BS, DIN , ISO, IE C. Their 100% hydrocarbon based composition makes them suitable for verification and calibration of all flow cups and rotational viscometers, from low to high shear applications. Supplied in 500 ml (1.06 pint) bottle. Precision: ± 0.3%, for dynamic & kinematic viscosity.
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Flow cup stands

Features
Holds all cups ( except 405, 420 range ) level for optimum results.
Supplied with bubble level.
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