Brookfield DV-II+ Digital Viscometer - Manual (Page 50)

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Inaccurate Readings
1. Incorrect spindle/speed selection
2. Incorrect spindle code entry
3. Non-standard test parameters
4. Temperature fluctuations
5. Incorrect equipment selection
6. Refer to:
• Appendix B - Viscosity Ranges
• Appendix C - Variables in Viscosity Measurement
Recorder Pen Moves in Wrong Direction
1. Output polarity reversed
• Reverse leads
No Recorder Response
1. Viscometer is at zero reading
2. Recorder is off
3. Output cable leads shorted
4. Recorder is in standby
5. Range setting is incorrect.