Teaching equipment : Capillary viscometer

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Capillary viscometer

DESCRIPTION

The capillary viscometer is delivered complete with instrumentation and includes a technical and instruction manual.

The liquid to be studied is placed in a thermostatically controlled pressurized container which is connected to a capillary tube that is also found in a thermostatically controlled environment.

The liquid is continuously agitated to ensure that it remains homogeneous.

The unit can be dismantled.

Teaching equipment : Capillary viscometer - PBC 100

TECHNICAL SPECIFICATIONS

Characteristics
Capillary tubes : 0.2 mm and 0.4 mm - length 400 mm
Temperature scale : 90°C to ± 0,5°C
Pressure scale : 0 – 1 bar

Control and measurement appliances
The unit is manufactured with :
- A manometer – Tube of Bourdon Ø160
- A thermometer
- A stopwatch for level measurement
- Two graduated pipettes
- A heat regulated bath
- A magnetic agitator

PEDAGOGIC APPLICATIONS

From measurement of flow and loss of pressure in the capillary, the viscometer can be used :
• For a study of Poiseuille (laminar) flow of a known viscosity liquid
• To determine precisely the radius of the capillary tubes
• To measure the dynamic viscosity of a liquid and to study how this varies with temperature
• To study the shear force in viscous fluids and rubbing forces on the tubes during laminar flow.

Teaching equipment : Capillary viscometer - schema PBC 100

UTILITIES
Electricity : 230 V single phase - 50/60 Hz
Compressed air: 1 bar minimum

DIMENSIONS
Length : 760 mm
Width : 560 mm
Height : 600 mm
Weight : 60 kg

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Capillary viscometer

Didatec Technologie - ZA du Parc 42490 Fraisses - France - Tel : 33 (0)4 77 10 10 10 - Fax : 33 (0)4 77 61 56 49
E-Mail : didatec.technologie@wanadoo.fr