Brookfield R/S CPS Rheometer - Manual (Page 35)

Brookfield Engineering Labs., Inc. Page 35 Manual No. M08-218-B0212
Available Measurement Types User Defined Range
Shear Rate D{s -1 ] Depends on the measuring system
Speed n[rpm] 0.1 - 1,000 rpm
Shear Stress Tau [Pa] Depends on the measuring system
Torque M[ ‰ ] 0 - 999 promille (= 0 to 50 mNm)
Select the type of measurement and press the
OK
key (in our example “D[1/s]”). Now enter
the user defined values for each step one after the other.
The following inputs have to be made for each step:
Input Step #1
Start[1/s]:0010.00
End[1/s]: 0100.00
Nr of MP: 010
End Value
Start Value
Number of Measuring
Points
(data points)
Minimum and maximum start and end values depend on the selected measuring system for
shear rate (D[s -1 ]) and shear stress (Tau [Pa]). At input, the rheometer checks the start and
end values and indicates the message “Range error” if out of range:
Range error
Start value:
Min: 0.00
Max: 2400.00
Allowed minimum
value
Name of value out of
range
Allowed maximum
value
For example, a range error message would be displayed if a start value for D[s -1 ] is not
within the range of 0 - 2400.00 s -1 when using measuring cone C50-2.
If the start value, end value and number of measuring points are acceptable, the user will
be prompted for Step Duration:
Input Step Nr. 1
Time[s]: 0060
Number of steps
being edited
Step duration
Minimum step duration:
Available Measurement Types User Defined Range
Shear Rate D{s -1 ] tmin = number of measuring points * 4 s
Speed n[rpm] tmin = number of measuring points * 4 s
Shear Stress Tau [Pa] tmin = number of measuring points * 1 s
Torque M[ ‰ ] tmin = number of measuring points * 1 s