BROOKFIELD DV-II+ PROGRAMMABLE VISCOMETER Operating ...

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Appendix E - Calibration ProceduresThe accuracy of the DV-II+ is verified using viscosity standard fluids which are available fromBrookfield Engineering Laboratories or your local Brookfield 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 E1 (Silicone Oils) and Table E2 (Mineral Oils).Container size:Temperature:Conditions:For Viscosity Standards < 30,000 cP, use a 600 ml Low Form Griffin Beakerhaving a working volume of 500 ml.For Viscosity Standards ≥ 30,000 cP, use the fluid container.Inside Diameter: 3.25"(8.25cm)Height: 4.75"(12.1cm)Note: Container may be larger, but may not be smaller.As stated on the fluid standard label: (+/-) 0.1°CThe DV-I+ should be set according to the operating instructions. The water bathmust be stabilized at test temperature. Viscometers with the letters “LV” or“RV” in the model designation must have the guard leg attached (see page 34 formore information on the guard leg).Normal 25°C Standard Fluids High Temperature Standard FluidsViscosity (cP) Viscosity (cP) Three Viscosity/Temperatures**5 5,000 HT-30,00010 12,500 HT-60,00050 30,000 HT-100,000100 60,000500 100,000 **25°C, 93.3°C, 149°C1,000 Refer to Brookfield catalog formore information.Table E1MINERAL OIL VISCOSITY STANDARD FLUIDSBEL Part No. Viscosity (cP) 25°CB31 31B210 210B750 750B1400 1,400B2000 2,000B11000 11,000B20000 20,000B80000 80,000B200000 200,000B420000 420,000Table E2Brookfield Engineering Labs., Inc. Page 54 Manual No. M/97-164-F1102
Brookfield Viscosity Standard Fluid General InformationWe recommend that Brookfield Viscosity Standard Fluids be replaced on an annual basis, one yearfrom date of initial use. These fluids are pure silicone and are not subject to change over time.However, exposure to outside contaminants through normal use requires replacement on an annualbasis. Contamination may occur by the introduction of solvent, standard of different viscosity orother foreign material.Viscosity Standard Fluids may be stored under normal laboratory conditions. Disposal should be inaccordance with state, local and federal regulations as specified on the material safety data sheet.Brookfield Engineering Laboratories does not recertify Viscosity Standard Fluids. We will issueduplicate copies of the Certificate of Calibration for any fluid within two years of the purchasedate.Brookfield Viscosity Standard Fluids are reusable provided they are not contaminated. Normalpractice for usage in a 600 ml beaker is to return the material from the beaker back into the bottle.When using smaller volumes in accessories such as Small Sample Adapter, UL Adapter orThermosel, the fluid is normally discarded.Calibration Procedure for LV(#1-4) and RV,HA,HB(#1-7) Brookfield Spindles1) Place the viscosity standard fluid (in the proper container) into the water bath.2) Lower the DV-II+ into measurement position (with guard leg if LV or RV series Viscometer isused).3) Attach the spindle to the Viscometer. If you are using a disk-shaped spindle, avoid trapping airbubbles beneath the disk by first immersing the spindle at an angle, and then connecting it to theViscometer.4) The viscosity standard fluid, together with the spindle, should be immersed in the bath for aminimum of 1 hour, stirring the fluid periodically, prior to taking measurements.5) After 1 hour, check the temperature of the viscosity standard fluid with an accurate thermometer.6) If the fluid is at test temperature (±0.1°C of the specified temperature, normally 25°C), measurethe viscosity and record the Viscometer reading. Note: The spindle must rotate at least five(5) times before readings are taken.7) The viscosity reading should equal the cP value on the fluid standard to within the combinedaccuracies of the Viscometer and the viscosity standard (as discussed in the section entitled,Interpretation of Calibration Test Results) which appears later in this section.Calibration Procedure for a Small Sample AdapterWhen a Small Sample Adapter is used, the water jacket is connected to the water bath and the water isstabilized at the proper temperature:1) Put the proper amount of viscosity standard fluid into the sample chamber. The amount varieswith each spindle/chamber combination. (Refer to the Small Sample Adapter instructionmanual).2) Place the sample chamber into the water jacket.3) Put the spindle into the test fluid and attach the extension link, coupling nut and free hangingspindle (or directly attach the solid shaft spindle) to the DV-II+.Brookfield Engineering Labs., Inc. Page 55 Manual No. M/97-164-F1 102
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BROOKFIELD DV-II+PROGRAMMABLE VISCO
Page 4 and 5: I.1 ComponentsComponent Part Number
Page 6 and 7: I.4 InstallationNote: “IQ, OQ, PQ
Page 8 and 9: SELECTDISPLAYSELECT DISPLAYSelects
Page 10 and 11: II.GETTING STARTEDII.1AutozeroBefor
Page 12 and 13: II.3SETSPEED Speed Selection, Setti
Page 14 and 15: SR 40.0 20.1C6.0RPM % 15.6Figure 13
Page 16 and 17: II.7 Temperature DisplayThe DV-II+
Page 18 and 19: Non-Newtonian fluid behavior can re
Page 20 and 21: OPTIONSTABOPTIONS/TAB - Toggles bet
Page 22 and 23: L°F(FAHRENHEIT)CGS UNITSL°C(CENTI
Page 24 and 25: III.2.3.2 Custom SpeedsPressing the
Page 26 and 27: III.3.1 Time to StopOn entry, the u
Page 28 and 29: standard print string to the attach
Page 30 and 31: However, upon starting the timed op
Page 32 and 33: Refer to Section IV for information
Page 34 and 35: CP 123.4 55.1C10 RPM PGM% 63.7Figur
Page 36 and 37: IV.2 Description of B.E.V.I.S. Comm
Page 38 and 39: Figure 67 shows the grid where the
Page 40 and 41: IV. 5 Example ProgramsThe following
Page 42 and 43: Appendix A - Cone/Plate Viscometer
Page 44 and 45: A.3 SETTING THE GAP1. Move the togg
Page 46 and 47: Appendix B - Viscosity RangesViscos
Page 48 and 49: The second consideration involves t
Page 50 and 51: container wall and the spindle surf
Page 52 and 53: Table D1 (continued)SC4-14 14 125 0
Page 56 and 57: 4) Allow 30 minutes for the viscosi
Page 58 and 59: Interpretation of Calibration Test
Page 60 and 61: many viscometer users the true visc
Page 62 and 63: Appendix G - CommunicationsWhen usi
Page 64 and 65: DV-II+Serial and Analog OutputsNo C
Page 66 and 67: UnpackingCheck carefully to see tha
Page 68 and 69: Appendix J - Fault Diagnosis and Tr
Page 70 and 71: ❏ No Recorder Response✓ Be Sure
Page 72 and 73: Appendix K - Warranty Repair and Se
Page 74 and 75: Providing us with the following inf
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BROOKFIELD DV-II+ PROGRAMMABLE VISCOMETER Operating ...

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