TT100 In-Line Viscometer Installation, Operation, Maintenance and Service Instructions
P/N M/97-520 7-5
Table 7-4: Correlation/Application
Problem Possible Cause Corrective Action
Viscometer ranging is too
high. Reading is consis-
tently less than 10% of
scale.
1. Viscometer is empty, partially
empty, or contains trapped air.
2. No turnover of fluid in
measurement zone or
viscometer.
3. Improper calibration.
4. Wrong operating range selected
or viscometer is not calibrated
for dual range operation.
5. Fouling of torsion element and
inner cylinder by solids.
1. Refer to Section 2 and
make sure viscometer is
installed properly.
2. Refer to Section 2 and
make sure viscometer is
installed properly.
2. Refer to Figure 3-1 in
Section 3.
3. Refer to Appendix A
and call customer
support for assistance.
4. Refer to Section 5 and
clean the viscometer.
Viscometer ranging is too
low. Reading is consistently
greater than 90% of scale.
1. Possible torsion element
damage.
2. Improper calibration.
3. Wrong operating range selected
or viscometer is not calibrated
for dual range operation.
1. Refer to Sensing End
Cap Service in
Section 6.
2. Refer to Figure 3-1 in
Section 3.
3. Refer to Appendix A
and call customer
support for assistance.
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