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Maintenance
5.9.1 Valve module replacement
Refer to Figure 50.
To replace the valve module:
1. Disconnect all tubing from the valve.
2. Lift the valve module from the channel and disconnect the 6-pin connector.
3. Lift the module free of the channel.
4. Connect the replacement valve module.
5. Snap the valve module back into place in the channel.
5.9.2 Valve module maintenance
Valve modules may be damaged by over-tightening of valve fittings or by liquid spills. To
avoid valve damage:
• Keep the instrument clean and dry at all times.
• Keep all surfaces clean. Use a damp cloth to clean the module surfaces. Dry all
surfaces thoroughly. If an acid spill occurs, neutralize the acid with baking soda and
then proceed to clean all the surfaces.
Figure 50 Valve module connection
1 Valve module (bottom view) 2 Plug 6-pin valve cable into the board
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