Brookfield R/S CPS Rheometer Uživatelský manuál Strana 35

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BrookeldEngineeringLabs.,Inc. Page35 ManualNo.M08-218-B0212
AvailableMeasurementTypes UserDened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 dened 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DenedRange
Shear Rate D{s
-1
]
t
min
= number of measuring points * 4 s
Speed n[rpm] t
min
= number of measuring points * 4 s
Shear Stress Tau [Pa] t
min
= number of measuring points * 1 s
Torque M[
]
t
min
= number of measuring points * 1 s
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