Brookfield DV-III Ultra Rheometer Manual de usuario descargar pdf (Pagina 129)

Brookeld Engineering Laboratories, Inc. Page 129 Manual No. M/98-211-B0104

Brookeld Engineering Laboratories, Inc. Page 129 Manual No. M98-211-E0912

❑ Viscometer Will Not Return To Zero

✓ Rheometer is not level

• Adjust the laboratory stand

✓ Pivot point or jewel bearing faulty

• Perform an Oscillation Check*

✓ Manually lift the spindle nut and rotate counter clockwise until the display shows

20% - 30% deection.

✓ Release the spindle nut.

✓ The % display should return to 0.0% ± 0.1%.

• Perform calibration check

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

* This procedure does not apply to instruments with ball bearing suspension (See Section I.7).

❑ Display Reading Will Not Stabilize

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

• 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 control.

❑ No Recorder Response

 ✓ Be sure the rheometer 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.

❑ Recorder Pen Moves In Wrong Direction

✓ Output polarity reversed

• Reverse leads

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Brookfield DV-III Ultra Rheometer Manual de usuario Pagina 129