Falling Ball Viscometer
The Hoppler principle is used to measure the viscosity of Newtonian liquid by measuring the time required for a ball to fall under gravity through a sample-filled tube that is inclined at an angle.
The average time of three tests is taken; the result is converted into a viscosity value using a simple formula.
Two models are available:
KF30 has a fixed angle of 80° and complies with DIN 53015
KF40 can be angled at 50°, 60°, 70° and 80°.
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Features And Benifites:
- Pivot bearing allows for quick and easy tube rotation – ideal for repeat tests
- Connection to circulating bath for temperature control of sample
- Set of six balls to test a wide variety of samples
- Complete with temperature probe
- Accuracy 0.5% to 2.0% depending on ball being used
Falling Ball Specifications
|Viscosity Range :||o.5 mPa.s(cP)to 70,000 mPa.s(cP)|
|Accuracy :||0.5 %-2.0% depending on choice of ball|
|Bell Set Material Of Construction :||Balls 1 and 2 : Baron Silicate Glass Balls 3 and 4 : Nickel-Iron Balls 5 and 6 Steel|
|Ball Diameter||11.0mm to 15.81mm|
|Fall Time Of Ball In Measurement||30 to 300 Seconds**|
|Length of Measurement Zone in the Tube||100mm|
|Operating Temperature Range :||-60°C to +150°C|
|Sample Tube Volume :||40mL|
|Viscometer Dimensions||180 X 220 X 330 m|