Brookfield DV-III Ultra Rheometer Manual de usuario Pagina 114
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Brookeld Engineering Laboratories, Inc. Page 114 Manual No. M/98-211-B0104
Brookeld Engineering Laboratories, Inc. Page 114 Manual No. M98-211-E0912
APPENDIX E - Calibration Check Procedures
Brookeld’s accuracy statement for viscometers used with standard spindles is +/- 1% of full scale
range. When measuring viscosity with a specic spindle rotating at a dened speed, the maximum
viscosity that can be measured is dened as full scale range. For digital viscometers, this value is
easily determined by pressing the “AUTORANGE” key. The display will how the full scale range
viscosity in cP or mPa•s and the torque value will show “100%”. Multiply the full scale range vis-
cosity by 1% to determine the accuracy of any future measurement made with that spindle/speed
combination.
When using the following accessory devices with your viscometer, the accuracy is +/- 2%. Dimen-
sional tolerances in the accessory device allow for the increase from +/- 1% to +/-2%.
• Small Sample Adapter
• Thermosel
• Ul Adapter
• DIN Adapter
• Spiral Adapter
For more help you can go to the website,
www.brookeldengineering.com, and download the video.
The accuracy of the DV-III Ultra is veried using viscosity standard uids which are available from
Brookeld Engineering Laboratories or your local Brookeld agent. Viscosity standards are Newtonian,
and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards,
calibrated at 25
°C, are shown in Table E-1.
Container size: For Viscosity Standards < 30,000 cP, use a 600 ml Low Form Grifn Beaker
having a working volume of 500 ml.
For Viscosity Standards
≥ 30,000 cP, use the uid container.
Inside Diameter: 3.25" (8.25cm)
Height: 4.75" (12.1cm)
Note: Container may be larger, but may not be smaller.
Temperature: As stated on the uid standard label: (
+/-) 0.1°C
Conditions: The DV-III Ultra should be set according to the operating instructions. The water
bath should be stabilized at test temperature. Rheometers with the letters “LV”
or “RV” in the model designation should have the guard leg attached.
- 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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