Table of Contents
Chapter 4. Error Codes and Troubleshooting
4.1.2c
E3: Velocity Range
Problem:
The velocity exceeds the limits programmed in the menu Program Advanced Error Limits
Low/High;
Cause:
When the measured velocity is out of the limit of velocity, it will cause this error. The error may be caused
by improper programming data, poor flow conditions and/or excessive turbulence;
Action:
Make sure the actual flow rate is within the programmed limits. Also, check the entered value in the menu
Program Advanced Error Limits
and/or transducer problems.
4.1.2d
E4: Signal Quality
Problem:
The signal quality is outside the limits programmed in the menu Program Advanced Error Limits
Correlation Peak.
Cause:
The peak of the upstream or downstream correlation signals has fallen below the correlation peak limit, as
set in the menu Program Advanced Error Limits
flowcell or electrical problem.
Action:
Check for sources of electrical interference and verify the integrity of the electronics console by
temporarily substituting a test flowcell that is known to be good. Check the transducers and relocate them,
if necessary. See Diagnostics, for instructions.
4.1.2e
E5: Amplitude Error
Problem:
The signal amplitude exceeds the limits programmed in the menu Program Advanced Error
Limits
Amp Disc Min/Max;.
Cause:
Solid or liquid particulates may be present in the flowcell. Poor coupling for the clamp-on transducers.
Action:
Refer to Diagnostics, to correct any flowcell problems.
4.1.2f
E6: Cycle Skip
Problem:
The acceleration exceeds the limits programmed in the menu Program Advanced Error
Limits
Acceleration.
Cause:
This condition is usually caused by poor flow conditions or improper transducer alignment.
Action:
Refer to Diagnostics, to correct any flowcell and/or transducer problems.
74
Velocity Low/High. Refer to Diagnostics, to correct the flowcell
Correlation Peak. This may be caused by a
Velocity
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