‘Suspect Results’
Capillary Samples
Small bubbles which are not detected
Take care when aspirating capillary samples.
Sample Not Detected or Sampling Fault
Pump Tubing
No “pull” on sample line
Check pump tubing is tensioned.
Check measurement block tube is connected to the pump tubing.
Replace pump tubing.
See Page 3-13.
System
No sample in measurement block
Repeat sample measurement.
Blockage in sample path
Clear blockage, Page 3-31.
Segments of Wash solution in sample path causing false ‘sampling
complete’ or ‘bubble in sample’ indications
Clear blockages in drip tray/manifold/pump tubing, Page 3-31.
Leaks in sample path
Check sensor ‘O’ rings and replace if necessary, Pages 3-17 and 3-19.
Check sensors are seated correctly, and the sensor tensioner is
pushed firmly home, Page 3-17.
Check probe connector ‘O’ rings and replace if necessary, Page 3-24.
Sucking in air on sample line
Cure leak.
Fluid Detector
Sample detector cover not fitted
Fit cover, Page 3-29.
Ambient light affecting fluid detector
Position 248 out of direct sunlight.
Detector failure - confirm by Sample Flow Routine, Page 4-12.
Replace detector. See instructions on detector packaging.
Dirty tube
Replace probe tubing and measurement block tube.
Troubleshooting the System Page 4-7
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