Brookfield DV-III Ultra Rheometer Manual do Utilizador Página 28
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Brookeld Engineering Laboratories, Inc. Page 28 Manual No. M98-211-E0912
H) Press the ENTER button on the rheometer to run the test. The screen will then show “USE
SPINDLE #__”. Conrm that the correct spindle is attached to the rheometer and that the
sample is properly prepared and in position to begin the test. Press the ENTER button to start
the test.
I) After a few seconds, your PC will automatically show the Graphs page in the EZ-Yield software
program, indicating that the test has begun. The DV-III Ultra will send data to the PC and the
graph of the yield stress ow behavior will be captured. The Data page in the software will
record the actual numerical values for shear stress.
J) When the test is complete, a dialog box appears asking you to save the data that was just
acquired.
K) Subsequent tests can be started by either pushing the ENTER button on the DV-III Ultra or
by clicking the RUN button in the EZ-Yield software.
III.2 Preparations for Making Measurements
A) RHEOMETER: The DV-III Ultra should be turned on, leveled and auto zeroed. The level is
adjusted using the three feet on the bottom of the base and conrmed using the bubble on the
top of the head. Adjust the feet until bubble is inside the center target. Set the level prior to
autozero and check the level prior to each measurement.
Proper level is essential for correct operation of the DV-III Ultra.
B) SAMPLE: The uid to be measured (sample) must be in a container. The standard spindles
supplied with the DV-III Ultra (LV (1-4), RV (2-7), or HA/HB (2-7)) are designed to be used
with a 600 ml low form Grifn beaker (or equivalent container with a diameter of 8.25cm).
The same applies to the optional RV1, HA/HB1, and Vane spindles. Many other spindle
systems are supplied from Brookeld with specic sample chambers such as the Small Sample
Adapter, UL Adapter and Thermosel.
Brookeld recommends that you use the appropriate container for the selected spindle. You
may choose to use an alternate container for convenience, however, this may have an effect
on the measured viscosity. The DV-III Ultra is calibrated considering the specied container.
Alternate containers will provide results that are repeatable but not "true."
The LV (1-4) and RV (1-7) are designed to be used with the guardleg attached (see Appendix
F). Measurements made without the guardleg will provide repeatable results but may not
provide "true" results.
When comparing data with others, be sure to specify the sample container and presence/
absence of the guardleg.
Many samples must be controlled to a specic temperature for viscosity measurement. When
conditioning a sample for temperature, be sure to temperature control the container and spindle
as well as the sample.
Please see our publication, "More Solutions to Sticky Problems", for more detail relating to
sample preparation.
C) SPINDLE ATTACHMENT: The method of spindle connection to the DV-III Ultra is specied
at the time of order as either Standard Threaded Shaft or EZ-Lock. The spindle connection
method may be changed by sending the DV-III Ultra to Brookeld or our authorized agents.
There is an adapter available to convert Standard Threaded Spindles to EZ-Lock Spindles. It
is not possible to use EZ-Lock Spindles on a Standard Threaded Unit.
- BROOKFIELD DV-III ULTRA 1
- Table of Contents 3
- I. INTRODUCTION 5
- Maximum Torque Value 6
- Component Part Number 7
- Ball Bearing Option: 10
- Electrical Certication: 10
- CLAMP ASSEMBLY 12
- DV-III Ultra 12
- HEAD UNIT 12
- TENSION SCREW 12
- Connector 14
- RS-232 Serial 14
- Printer/Computer 14
- STRIP CHART RECORDER 16
- II. GETTING STARTED 18
- “REMOVE SPINDLE, LEVEL 18
- KEY.” Press a key 18
- TORQUE LESS THAN 0% 21
- SELECT SPDL key. The DV-III 21
- MOTOR ON/OFF/ESCAPE key 21
- one minute. 150 seconds 32
- USE SET:_ 33
- STEP TIME = 00:05 33
- USING PREPROGRAMMED SPEEDS 37
- OPTION/TAB key 38
- LOCKOUT OPTIONS 38
- PROG RUN key is pressed 40
- PROG RUN 40
- ENTER key. Assume that the 41
- ENTER key, our display will 41
- PROGRAMMED SPEED STOP 41
- PROGRAMMED SPEED HOLD 42
- SINGLE SPEED 49
- DVIII SPEED/TIME PAIRS 50
- B.E.V.I.S. PROGRAMS 50
- STANDARD CASSON PRINTOUT 51
- 1. Casson (Standard) 52
- 3. Bingham Plastic 52
- 4. Power Law 53
- 5. IPC Paste Analysis 53
- Figure IV-44: Test Screen 55
- Figure IV-45: Run/Data Screen 55
- Figure IV-46: Setup Screen 56
- Figure IV-47: Analysis Screen 56
- Figure IV-48 57
- = shear stress 58
- Figure IV-65 79
- V. OPTIONS 89
- ENTER key 89
- V.4 Set Temperature 91
- V.6 Timed Data Collection 93
- Do Not hit the 96
- CONE with the CUP! 96
- A.3 SETTING THE GAP 97
- Universal Spindle Ranges 99
- Rheometer at 45 RPM 100
- Spindle Speed = 45 RPM 100
- RHEOLOGICAL PROPERTIES 105
- Table D-1 (continued) 108
- (S x T) 112
- +/-) 0.1°C 114
- °C, are shown in Table E-1 114
- Table E-1 115
- °C, 93.3°C, 149°C 115
- Table E-2 115
- + 500) cP = (+/-) 622.57 cP 119
- Figure F-1 121
- DV-III Ultra Stand Assembly 122
- Item Part # Description Qty 122
- 4 hex digits. Calculate the 125
- Zero offset = tval/100 125
- VISCOSITY TEST REPORT 133
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