Filter
Top Products
Brookfield Engineering Labs., Inc. Page 32 M/02-212
VI.5 Menue entries (MAIN menue)
Menue entries (see Menue System in Chapter 6.2) may either contain submenues (e.g. “Utilities” or
“Configuration”) or directly executing of one of the Rheometer’s functions.
At Tree Chart in Chapter 6.2 all gray fields without further right branches serve to call functions. Those
ones with right branches are submenues.
Let us remind keyboard layout from Chapter 6.2. Using and keys we move cursor (black
rectangle) upwards and downwards, and with key we start (activate) function (if the current
selection is a submenue, we open it, otherwise the function of the Rheometer starts). Functions of R/S
Rheometer are described in detail elsewhere in this Chapter.
VI.5.1 MAIN-Menue → Run Single
This function carries out a measurement of shear stress or shear rate at constant preset values.
The physical units of preset values may be selected from:
- shear rate D [s
-1
]
- speed n [rpm]
- shear stress Tau [Pa]
- torque M[‰] [1000 ‰ correspond ca. 50 mNm]
Before you start the measurement itself you have to input the following values:
• Selection of the measuring system used at the instrument (selection from the list, operation -
see Chapter 6.3)
• Selection of physical units of preset value (see above, selection from the list, operation, see
Chapter 6.3). Here you have to decide, if you want to carry out a shear rate measurement
(shear rate, speed) or a shear stress measurement (shear stress, torque).
• Input of preset values (input of numbers, operation, see Chapter 6.4) D [s-1] The range of the
value depends on the measuring system
• n [rpm] 0.7... 800 rpm (U/min)
• Tau [Pa] The range of the value depends on the measuring system
• M[‰] 0 ... 999 ‰
• Input of desired number of measured points (input of numbers, operation, see Chapter 6.4)
Input of the measurement duration in seconds. Here it is necessary to take into account, that
minimal duration of the measurement depends on kind of the measurement and on number of
desirable measurement points. For minimal duration between 2 measurement points it is valid
• Shear stress measurement t
MP
>= 1 s
• Shear rate measurement t
MP
> =4 s
Note: The more is the time period between 2 measured values, the more is the precision of
physical values determined!
(input of numbers, operation, see Chapter 6.4)
• Input of ID (identification text of the measurement). Here you can input textual notes of the
measurement (max. 15 characters). (Alphanumeric input, operation - see Chapter 6.4)
If you have passed these points, before starting a measurement, the Rheometer will indicate, where the
measure points will be written to.
OK