TU or TL ERRORS
Re-analyze sample (system cleans and rinses the
orifice automatically when error is generated)
DONE
Perform a Prime, then a
background count
TU/TL flag?
Re-analyze
sample
TU/TL flag?
DONE
DONE
1. Perform Valve Check
2. Contact Service Representative
and give Valve Check results
TU/TL flag?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
Perform [Orifice Clean]
in Maintenance menu
TU/TL flag?
Perform
background count
Run a Prime cycles
followed by a
background count
TU/TL flag?
YES
Is
liquid level above
orifice in measuring
chambers?
Check tubing to
measuring chambers,
re-attach if necessary.
Check tubing to
metering units,
re-attach if necessary.
DONE
All highlighted areas of flowchart
are to be performed by trained in-
house technician ONLY.
Remove right-side
cover.
Check tubing to air
membrane pump (SP1 &
SP2), re-attach if
necessary.
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