Biuged BGD 151 Buku Petunjuk - Halaman 3

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5.0 Selection of Spindles and speed:
The principle of viscosity measurement not only takes into consideration of the viscometer rotation,
but also depends on the correct spindle to be used. The table as below give the correct use of spindle to
the viscosity measurement.
Rotation Speed →
Spindle Setting↓
1
2
3
4
First, operator should estimate approximately the value of viscosity of their tested sample and select
appropriate spindle and rotation speed.
The Viscosity Correction Factor is described as follow:
Where
The K is decided by rotation speed and spindle jointly:
Rotation Speed →
Spindle Setting↓
6.0 Cautions:
6.1 The Machine must be used with prescriptive frequency and voltage. Otherwise the testing result will
be incorrect.
6.2 Change the rotation speed when the machine is working.
6.3 If you have installed the spindle, do not turn on the machine when no any fluid .
6.4 Do not disassembly the machine ad arboretum and do not add any lube on the gear wheel of
machine.
6.5 Install the yellow protecting sheath when conveying the machine.
6.6 Clean and dry the spindle carefully after every testing
7.0 Others
For more information regarding this product, spares, accessories etc. or if you would like a
catalogue listing our full range of products, please contact your local agent or Biuged Instruments at the
address on the following page.
60
100
500
2,000
10,000
η=K.a
η= Viscosity in mPa.s
K= Constant Factor
a= Reading at Viscometer
60
1
1
2
5
3
20
4
100
30
12
Viscosity Reading in mPa.s
200
500
1,000
2,500
4,000
10,000
20,000
50,000
30
12
6
K
2
5
10
10
25
50
40
100
200
200
500
1,000
6
1,000
5,000
20,000
100,000