Brookfield CAP1000 Viscometer Manual do Utilizador descarregar pdf (Página 16)

Brookeld Engineering Labs., Inc. Page 14 Manual No. M02-312A0607

III. OPERATION

The CAP 1000+ Viscometer is delivered from the factory with two available speeds for opera-

tion at 750 rpm or 900 rpm. Information on how to access these speeds is detailed in section

II.3 “Speed Setting”. Your viscometer may operate at a different rotational speed based on what

was specied at the time of order. To determine what speed your viscometer has been set to,

power on the viscometer and note the operating speed on the main screen display.

III.1 Full Scale Range and Accuracy of Measurement

Full Scale Range (FSR) viscosity is the maximum viscosity that can be measured and occurs

when the % torque is 100. Brookeld recommends that viscosity measurements be made be-

tween 10 and 100% torque.

There are two tables to consult for viscosity range information, depending on which torque

model viscometer you purchased. To determine which torque model you have, consult the se-

rial tag of your viscometer or the certicate of calibration that accompanied the instrument or

the display on power up.

23CAP 1000+ = Low Torque CAP 1000+ = High Torque

Full Scale Range (FSR) is based on the cone spindle your are using, the torque model of your

viscometer, and the speed of spindle rotation. The tables below provide information on FSR

by torque model for the most common factory set speeds:

Table III-1: Full Scale Range Viscosity for Low Torque CAP 1000+

Cone

Number

Cone

Range

Constant

Shear Rate

Constant

FSR Poise

at 100

RPM

FSR

Poise at

750 RPM

FSR Poise

at 900

RPM

FSR Poise at any

RPM

01 1875 13.33N 0.83 0.11 .0597 1875/(22.7*N)

02 3750 13.33N 1.65 0.22 .165 3750/(22.7*N)

03 7500 13.33N 3.30 0.44 .330 7500/(22.7*N)

15000 3.33N

6.61

0.88 0.73 15000/(22.7*N)

05 30000 3.33N 13.22 1.76 1.47 30000/(22.*N)

06 75000 3.33N 33.04 4.41 3.67 75000/(22.7*N)

07 3150 2N 1.39 * * 3150/(22.7*N)

08 12500 2N 5.51 * * 12500/(22.7*N)

09 50000 2N 22.3 * * 50000/(22.7*N)

10 5000 5N 2.20 0.29 2.20 5000/(22.7*N)

N= RPM

Poise x 100 = centiPoise

*use of this cone at these RPM is not recommended

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 29 30

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