BROOKFIELD DV-II+ PROGRAMMABLE VISCOMETER Operating ...

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Appendix J - Fault Diagnosis and TroubleshootingListed are some of the more common problems that you may encounter while using your Viscometer.❏ Spindle Does Not Rotate✓ Make sure the viscometer is plugged in.✓ Check the voltage rating on your viscometer (115, 220V); it must match the wall voltage.✓ Make sure the motor is ON and the desired rpm is selected.❏ Spindle Wobbles When Rotating or Looks Bent✓ Make sure the spindle is tightened securely to the viscometer coupling.✓ Check the straightness of all other spindles; replace if bent.✓ Inspect viscometer coupling and spindle coupling mating areas and threads for dirt; cleanthreads on spindle coupling with a 3/56 left-hand tap.✓ Inspect threads for wear; if the threads are worn, the unit needs service (see Appendex K).Check to see if spindles rotate eccentrically or wobble. There is an allowable runout of 1/32-inch in each direction (1/16-inch total) when measured from the bottom of the spindle rotatingin air.✓ Check to see if the viscometer coupling appears bent; if so, the unit is in need of service (seeAppendix K, “How to Return Your Viscometer”).If you continue to experience problems with your viscometer, follow this troubleshooting section tohelp isolate potential problems.❏ Perform an Oscillation Check✓ Remove the spindle and turn the motor OFF; select display to % torque mode.✓ Gently push up on the viscometer coupling.✓ Turn the coupling until the digital display reads 10-15 on the % display.✓ Gently let go of the coupling.✓ Watch the digital display; you should see a “run” of numbers next to the %; the “run” ofnumbers should ultimately stop at 0.0 (+/- 0.1).If the digital display does not return to ZERO, the unit is in need of service (see Appendix K, “Howto Return Your Viscometer”).Brookfield Engineering Labs., Inc. Page 68 Manual No. M/97-164-F1102
❏ Inaccurate Readings✓ Verify spindle, speed and model selection.✓ If % readings are under-range (less than 10%), the display will flash; change spindle and/orspeed.✓ “EEE” on the digital display means the unit is over-range (greater than 100%); reduce speedand/or change spindle.✓ Verify test parameters: temperature, container, volume, method. Refer to:• “More Solutions to Sticky Problems”, Section III• “DV-II+ Programmable Viscometer Operating Instructions, Appendix C, “Variables inViscosity Measurements.✓ Perform a calibration check; follow the instructions in Appendix E.✓ Verify tolerances are calculated correctly.✓ Verify the calibration check procedures were followed exactly.If the unit is found to be out of tolerance, the unit may be in need of service. See Appendix K fordetails on “How to Return Your Viscometer”.❏ Viscometer Will Not Return to Zero✓ Viscometer is not level• Check with spindle out of the sample• Adjust the laboratory stand✓ Pivot point or jewel bearing faulty• Perform calibration check• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair❏ Display Reading Will Not Stabilize✓ Special characteristic of sample fluid. There is no problem with the viscometer.• Refer to Appendix C✓ Check for erratic spindle rotation.• Verify power supply• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair✓ Bent spindle or spindle coupling.• Contact Brookfield Engineering Laboratories, Inc. or your Brookfield dealer for repair✓ Temperature fluctuation in sample fluid• Use temperature bath control.Brookfield Engineering Labs., Inc. Page 69 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
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II.GETTING STARTEDII.1AutozeroBefor
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II.3SETSPEED Speed Selection, Setti
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SR 40.0 20.1C6.0RPM % 15.6Figure 13
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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 54 and 55: Appendix E - Calibration Procedures
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 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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