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8
3. Troubleshooting
SYMPTOM
PROBABLE CAUSE
SOLUTION
Module not displayed on the
Envision Operation Page.
Data Cable not attached.
Ensure that the Data Cable is
properly seated on both the
Module’s and the Envision’s Data
Port.
Bad Data Cable.
Connect the Data Cable to a
different port on the Envision
and see if communication can be
established. Replace Cable if
necessary.
Connect the Data Cable to a
different extractor
Prewet solvent does not
dispense.
Unfamiliar method.
Confirm method steps to ensure
that the prewet is scheduled.
Confirm that the method has
been loaded onto the extractor
in use.
Low/No pressure.
Verify that nitrogen source is set
correctly.
Verify that the Solvent Bottle
Pressure is set correctly.
Verify that all nitrogen lines are
free from kinks.
Verify that the bottle cap is tight
and that both gaskets are
present and undamaged.
Low/No solvent in connected
bottle.
Verify that enough solvent is
contained within the solvent
bottle to cover the bottom of the
solvent filter.
Solvent Sip Tube not attached to
cap.
Ensure that the sip tube is
tightened into the cap.
Clogged Solvent Filter
Cut or pull Solvent Filter off and
verify that solvent is able to be
dispensed. Replace if needed.
Kinked Solvent Delivery line
Inspect all Solvent Delivery lines,
replace if needed.
Valve not actuating.
Ensure that the valve pins are
properly seated within the
Molex Connector.
Other valves not actuating;
replace the fuse on Control
Circuit Board
Fault 80: Extractor Fault: Prewet
Solvent Delivery Fault: Check
Extractor
Solvent does not reach the top
thermistor in under 1 min.
Refer to "Prewet solvent does
not dispense."
Summary of Contents for SPE-DEX 4790
Page 1: ...SPE DEX 4790 Solid Phase Extraction System Service Manual ...
Page 6: ...5 Notes ...
Page 39: ...38 ...
Page 47: ...46 ...
Page 59: ...58 8 Schematics 8 1 Nitrogen and Solvent Delivery System ...