Brookfield YR-1 Rheometer Manual do Utilizador descarregar pdf (Página 59)

Brookeld Engineering Labs., Inc. Page 59 Manual No. M02-215-B0412

If the digital display does not return to ZERO, the unit is in need of service (see Appendix I,

“How to Return Your Rheometer”).

❏ Inaccurate Readings:

✓ Verify spindle, speed and model selection.

✓ Verify that %-Torque readings are greater than or equal to 10%.

✓ Verify test parameters: Yield Test Parameters, container, volume and method.

✓ Perform a calibration check; follow the instructions in Appendix B, “Calibration Pro-

cedures”.

✓ Verify that tolerances are calculated correctly.

If the unit is found to be out of tolerance, the unit may be in need of service. See Appendix I

for details on “How to Return Your Rheometer”.

❏ Rheometer Will Not Return to Zero:

✓ Rheometer is not level.

  • Checkwiththespindleoutofthesample.

  • Adjustthelaboratorystand.

✓ Pivot point or jewel bearing faulty:

  • Performacalibrationcheck.SeeAppendixC,“CalibrationProcedures”.

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

repair

❏ Display Reading Will Not Stabilize:

✓ Rheometer is not level

  • Checkwiththespindleoutofthesample.

  • Adjustthelaboratorystand.

✓ Specialcharacteristicofsampleuid.Thereisnoproblemwiththerheometer.

✓ Check for erratic spindle rotation.

  • Verifythe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control.

❏ No Recorder Response:

✓ Verify the rheometer is not reading ZERO.

✓ Verify the recorder is ON and not on STANDBY.

✓ Verify the range settings.

✓ Check cable leads for clean connection.

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Brookfield YR-1 Rheometer Manual do Utilizador Página 59