Chapter 4. Error Codes and Troubleshooting
74 AT600 User’s Manual
4.1.2c E3: Velocity Range
Problem: The velocity exceeds the limits programmed in the menu Program Advanced Error Limits
Velocity
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
Velocity Low/High. Refer to Diagnostics, to correct the flowcell
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
Correlation Peak. This may be caused by a
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.
To Next Page
Loading...
Need help?
General
