Thermo Scientific Dionex AutoTrace 280, Operator'S Manual

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Dionex AutoTrace 280 Operator’s Manual
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Doc. 065330-05 03/2020
3. Reconnect the wiring connector to the Valve Distribution PC board (see
Figure 5-16 ).
4. Reattach the white compression fittings to the valve:
a. Valve port NO connects to the air inlet (no tubing).
b. Valve port COMM connects to the air push syringe tubing.
c. Valve port NC connects to the liquid syringe tubing.
5. Reinstall the Dionex AutoTrace 280 rear panel with the six screws previously
removed.
6. Reconnect the power cord and turn on the power.
7. Place solvent lines in the solvent reservoirs.
8. Run the Prime Solvents diagnostic method (#29).
Complete the Procedure
Run the Benchmark Test diagnostic method (#30) (see Section 5.17 ) to verify that
the new valve works properly.
5.16 Replacing the Switching Valve
If the switching valve leaks, replace the valve.
Parts and Tools Needed
•
#2 Phillips screwdriver
•
Switching valve (P/N 070273)
Remove the Defective Valve
1. Turn off the Dionex AutoTrace 280 power switch and disconnect the power
cord from both its source and from the Dionex AutoTrace 280 right-side
panel.
HIGH VOLTAGE—Disconnect the main power cord from its source, as
well as from the right-side panel of the Dionex AutoTrace 280.