Fluidics Failure, Insufficient 7.3/6.8/Wash - Siemens RAPIDLAB 248 Operator's Manual

Troubleshooting the System
Fluidics Failure - Insufficient 7.3/6.8/Wash
Run 7.3 or 6.8 buffer in the Measurement Block Routine, Page 4-10, to
help diagnose the fault.
Reagents
Buffer or Wash bottles are empty
Bottle tubes do not reach the solution
See Page 3-5.
System
Blockage in sample path
Leaks in sample path
Sucking in air on calibrant line
New/greasy probe
Damaged seal in probe sleeve caused by bent probe
Pump Tubing
Insufficient "pull" on calibrant line
Tubing is blocked
Mechanical
Pump rollers are dirty
Probe is misaligned
Solenoid(s) inoperative
Fluid Detector
Sample detector cover not fitted
Ambient light affecting fluid detector
Dirty tubing
Detector failure (confirm using Sample Flow Routine, Page 4-12)
Replace buffers or Wash.
Feed the tubes through the connector caps into the solutions.
Clear blockage, Page 3-31.
Cure leaks. Check sensor 'O' ring seals and make sure sensors are
seated correctly, Page 3-17.
Cure leak.
Raise probe lever and immerse tip of probe in a strong soap solution for
10 to 15 seconds. Lower the probe lever and Prime the 248, Page 3-9.
Replace probe and housing, Page 3-24.
Check reagent pump tubing is tensioned.
Check rubber connector is pushed firmly onto manifold.
Replace tubing, Page 3-13.
Clear blockage, Page 3-31. If fault persists replace tubing.
Remove pump rollers, clean, grease and re-assemble, Page 3-13.
Realign or replace probe.
Contact your Siemens Healthcare Diagnostics distributor.
Fit cover, Page 3-29.
Position 248 out of direct sunlight.
Replace probe tubing and measurement block tube, Page 3-24.
Replace detector. See instructions on detector packaging.
Page 4-5