Brookfield DV-III Ultra Rheometer Manual de usuario Pagina 118
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Brookeld Engineering Laboratories, Inc. Page 118 Manual No. M/98-211-B0104
Brookeld Engineering Laboratories, Inc. Page 118 Manual No. M98-211-E0912
Calibration Procedure using a Helipath Stand and T-Bar Spindles
When a Helipath Stand and T-Bar spindles are used:
Remove the T-bar spindle and select a standard LV(#1-3) or RV,HA,HB (#2-6) spindle. Follow the
procedures for LV(#1-3) and RV,HA,HB (#2-6) Brookeld spindles outlined above.
T-Bar spindles should not be used for verifying calibration of the DV-III Ultra Rheometer.
Calibration Procedure for Spiral Adapter
1) Place the viscosity standard uid (in the proper container) into the water bath.
2) Attach the spindle to the viscometer. Attach chamber (SA-1Y) and clamp to the viscometer.
3) Lower the DV-III Ultra into measurement position. Operate the viscometer at 50 or 60 RPM
until the chamber is fully ooded.
4) The viscosity standard uid, together with the spindle, should be immersed in the bath for a
minimum of 1 hour, stirring the uid periodically (operate at 50 or 60 RPM periodically), prior
to taking measurements.
5) After 1 hour, check the temperature of the viscosity standard uid with an accurate
thermometer.
6) If the uid is at test temperature (+/- 0.1°C of the specied temperature, normally 25°C),
measure the viscosity and record the viscometer reading.
Note: The spindle must rotate at least ve (5) times for one minute, whichever
is greater before readings are taken.
7) The viscosity reading should equal the cP value on the viscosity uid standard to within the
combined accuracies of the viscometer and the standard (as discussed in the section entitled,
Interpretation of Calibration Test Results).
Calibration Procedure for Cone/Plate Viscometers:
1) Follow the gap setting procedures in Appendix A for mechanically adjusting the setting of the
cone spindle to the plate.
2) Refer to Appendix A, Table A-1, and determine the correct sample volume required for the
selected spindle.
3) Select a viscosity standard uid that will give viscosity readings between 10% and 100% of full
scale range. Refer to Appendix B for viscosity ranges of cone spindles. Consult with Brookeld
or an authorized dealer to determine which uid is appropriate.
It is best to use a viscosity standard uid that will be close to the maximum viscosity for a given
cone spindle/speed combination.
Example: LVDV-III Viscometer, Cone CP-42, Fluid 10
Having a viscosity of 9.7 cP at 25°C
At 60 RPM, the full scale viscosity range is 10.0 cP. Thus, the Rheometer reading should
be 97% torque and 9.7 cP viscosity ± 0.197 cP (0.1 cP for the rheometer plus 0.97 cP for the
uid). The accuracy is a combination of Rheometer and uid tolerance (refer to Interpretation
of Calibration Test Results).
4) With the viscometer stopped, remove the sample cup and place the viscosity standard uid into
the cup, waiting 10 minutes for temperature equilibrium.
- 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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