Brookfield DV-III Ultra Rheometer Uživatelský manuál Strana 98
- Strana / 133
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Brookeld Engineering Laboratories, Inc. Page 98 Manual No. M98-211-E0912
A.4 VERIFYING CALIBRATION
1. Determine the appropriate sample volume.
Cone Sample Volume
Par t No.
CPA-40 0.5 ml
CPA-41 2.0 ml
CPA-42 1.0 ml
CPA-51 0.5 ml
CPA-52 0.5 ml
Table A6
Table A-1
Refer to Table A-1 to determine the correct
sample volume required for the spindle to be
utilized.
2. Select a Brookeld 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; ranges listed apply to CPA cones.
Do not use a silicone viscosity standard uid with a viscosity value greater than 5000 cP with a
Cone/Plate. Brookeld offers a complete range of mineral oil viscosity standards suitable for
use with Cone/Plates for viscosities above 5,000 cP or shear rates above 500 sec
-1
; see Table E-2
in Appendix E for a list of available uids.
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 Ultra Viscometer, Cone Spindle CPE-42, Brookeld Silicone
Viscosity Standard having a viscosity of 9.7 cP at 25°C
At 60 RPM, the full scale viscosity range is 10.0 cP. Thus, the Viscometer reading should be
97% torque and 9.7 cP viscosity ± 0.197 cP. The allowable error (±0.197 cP) is a combination
of Viscometer accuracy and uid tolerance (refer to Interpretation of Calibration Test Results
at the end of Appendix E).
3. Set the gap as described in Section A.3.
4. With the motor off, remove the sample cup and place the viscosity standard uid into the cup.
5. Attach the sample cup to the Viscometer and allow sufcient time for the sample, cup and cone
to reach temperature equilibrium.
6. Turn the motor on. Set the desired speed(s). Measure the viscosity and record the reading in
both % torque and centipoise (cP).
Note: The cone spindle must rotate at least ve (5) times before a viscosity
reading is taken.
7. Verify that the viscosity reading is within the allowable 1% deviation, as explained earlier, for
the specic viscosity standard uid(s) that you are using.
* The CPE designation on the cone spindle indicates use with Electronic Gap Setting Cone/Plate
Viscometers/Rheometers only.
- 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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