The Brookfield Falling Ball Viscometer measures viscosity in accordance with the test method defined in DIN 53015 (Höppler principle) to measure the viscosity of Newtonian liquid by measuring the time required for a ball to fall under gravity through a sample-filled tube. The tube is mounted on a pivot bearing which quickly allows rotation of the tube 180 degrees, thereby allowing a repeat test to run immediately. Three measurements are taken and the average time it takes for the ball to fall is the result used. A conversion formula turns the time reading into a final viscosity value.
The Falling Ball Viscometer is used for quality control in various industries as well as in academic institutions to illustrate scientific method. The ease of use and straightforward method for recording time measurements ensures meaningful test results.
There are two models available:
Model KF10 which has the fixed angle of 80 degrees in accordance with the DIN 53015.
Model KF20 which has variable angle settings of 80, 70, 60 and 50 degrees for greater flexibility in testing a broader range of materials. Both models are provided with a set of 6 balls, each with a separate viscosity measurement range. Also included is a temperature probe which can be inserted into the enclosure around the sample tube. The operator manual explains how to convert the time measurement into a viscosity value.
Technical Data
Viscosity Range:
0.5 mPa•s (cP) to 70,000 mPa•s (cP)
Accuracy:
0.5% - 2.0% depending on choice of ball
Ball Set Material of Construction:
Balls 1 and 2:
Boron Silicate Glass
Balls 3 and 4:
Nickel-iron
Balls 5 and 6:
Steel
Ball Diameter:
11.0 mm to 15.81 mm
Fall Time of Ball in Measurement:
30 to 300 seconds**
Length of Measurement Zone in the Tube:
100 mm
Operating Temperature Range:
-60°C to +150°C
Sample Tube Volume:
40 mL
Viscometer Dimensions:
180 x 220 x 330 mm
** Falling times greater than 300 seconds allow measurement of liquids above 70,000 mPa*s (cP)
Ball Set with Case The Falling Ball Viscometer comes complete with a set of six balls.
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
VI-090010
Model KF10 Falling Ball Viscometer, complies with DIN specification 50135 (with 80° angle)
$2,555.00
VI-090020
Model KF20 Falling Ball Viscometer, similar to KF10 but with additional working angles of 50°, 60° and 70°
2,730.00
Calibrated Balls
VI-090031
Ball No. 1 (glass) 15.8 mm diameter
155.00
VI-090032
Ball No. 2 (glass) 15.59 mm diameter
155.00
VI-090033
Ball No. 3 (Ni-Fe) 15.56 mm diameter
150.00
VI-090034
Ball No. 4 (Ni-Fe) 15.20 mm diameter
150.00
VI-090035
Ball No. 5 (steel) 14.00 mm diameter
175.00
VI-090036
Ball No. 6 (steel) 10.99 mm diameter
175.00
Additional Parts and Accessories available. Please call for further information.
Temperature Measurement - Thermometers
VI-090051
TM1 Thermometer 0°C to +100°C (scale interval 0.5°C)
58.00
VI-090053
TM3 Thermometer +19°C to +41°C (scale interval 0.1°C)
58.00
VI-090054
TM4 Thermometer +39°C to +61°C (scale interval 0.1°C)
73.00
VI-090055
TM5 Thermometer +59°C to +81°C (scale interval 0.1°C)
58.00
VI-090056
TM6 Thermometer +70°C to +101°C (scale interval 0.2°C)
65.00
VI-090057
TM7 Thermometer +99°C to +126°C (scale interval 0.2°C)
65.00
VI-090058
TM8 Thermometer +124°C to +151°C (scale interval 0.2°C)
65.00
VI-090059
TM9 Thermometer -1°C to +21°C (scale interval 0.1°C)
58.00
VI-090060
TM10 Thermometer -21°C to +1°C (scale interval 0.1°C)
65.00
VI-090061
TM11 Thermometer -61°C to -19°C (scale interval 0.5°C)
73.00
VI-090070
TM20 Set of Thermometers (TM1 through TM11) w/case
Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only 