Brookfield DV2+Pro Viscometer Uživatelský manuál stáhnout pdf (Strana 95)

Brookeld Engineering Labs., Inc. Page 95 Manual No. M03-165-F0612

❏ 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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” of

numbers should ultimately stop at 0.0 (+/- 0.1).

If the digital display does not return to ZERO, the unit most likely is in need of service.

  • Performcalibrationcheck(SeeAppendixE)

 • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair(See

Appendix N).

* This procedure does not apply to instruments with ball bearing suspension. (See section I.3)

❏ Display Reading Will Not Stabilize

✓ Specialcharacteristicofsampleuid.Thereisnoproblemwiththeviscometer.

  • RefertoAppendixC

✓ Check for erratic spindle rotation.

  • Verifypowersupply

  • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair.

✓ Bent spindle or spindle coupling.

  • ContactBrookeldEngineeringLaboratories,Inc.oryourBrookelddealerforrepair.

✓ Temperatureuctuationinsampleuid.

  • Usetemperaturebathforcontrol

❏ No Recorder Response

✓ Be Sure the viscometer is not at ZERO reading.

✓ BesuretherecorderisONandnotonSTANDBY.

✓ Verify the range settings.

✓ Check cable leads for clean connection.

✓ Verify cable connections (see Appendix H).

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Brookfield DV2+Pro Viscometer Uživatelský manuál Strana 95