Falling-Ball Viscometer / Hoeppler manual
The classic falling-ball viscometer works according to the Hoeppler principle. It measures the time a ball takes to move through the sample liquid. To obtain viscosity values, a calibration with a viscosity reference standard and the sample's density are required. The Hoeppler principle defines a falling angle of 80°. A liquid bath thermostat is responsible for temperature control. The reading is done manually by the operator.
- Measured quantity: Time
- Calculated quantity (sample density required): Dynamic viscosity
Learn more about the Falling Ball Principle.
The measuring range of the falling-ball viscometer depends on the ball used. With all available balls a wide measuring range can be covered. The precision also depends on the ball used.
- Viscosity measuring range - with 6 different balls: 0.5 mPa.s to 70,000 mPa.s
- Accuracy: 0.5 % to 2.0 % depending on the ball used
- Temperature measuring range: -60°C (-76°F) to 150°C (302°F)
Temperature control is done with a liquid bath thermostat.
- Typical sample volume: 40 mL
- Suitable for transparent samples.
Standards and Norms
DIN 53015, ISO 12058
|Viscometer type||Hoeppler Viscometer|
|Measuring principle||Falling-Ball Viscometer|
|Calculated quantity||dynamic viscosity (density required)|
|Viscosity range - min||0.5 mPa.s|
|Viscosity range - max||70,000 mPa.s|
|Temperature - min||-60°C|
|Temperature - max||+150°C|
|Liquid bath thermostat required||yes|
|Temperature change with same filling||no|
|Sample volume - typical||40 mL|
|Solvent volume - typical||---|
|Sample throughput - max / h||2|
|Measuring accuracy||< 1 %|
|Shear rate control||no|
|Shear rate calculation||no|
|Lab space||< 0.25 m²|
|Standards and norms||DIN 53015, ISO 12058|
We offer typical values which are based on the values in brochures and standards but are not related to specific instruments.