Chapter 5 Maintenance
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C H A P T E R 5
Maintenance
Perform preventive maintenance to ensure that your OR 100/110 with inte-
grated degasser and pulse damper will perform consistently at an optimal
level. The following measures are recommended:
1. Use only high-purity solvents (preferably (HP)LC Grade) for mobile
phases. Water should be bottled (LC Grade), or ultra-pure (18
MOhm.cm). Filter all solvents to prevent particulate contamination
and plugged tubing.
2. Perform periodic leak checks on LC tubing and connections on the
degasser and pulse damper of the OR 100/110. Check if the drain
on the bottom of the mobile phase tray is not blocked or closed.
3. Do not allow flammable and/or toxic solvents to accumulate. Fol-
low a regulated, approved waste disposal program. Empty and
clean waste container regularly. Never dispose of such products
through the municipal sewage system.
4. Clean the OR 100/110 external surfaces on a regular basis. Use a
cloth wetted with water only to clean the detector.
Do not use any
organic solvents
to clean the exterior.
5. Use only high-purity gases when drying contact areas. Ensure that
all new tubing (stainless steel) is passivated and thoroughly
flushed before making pump connections.
6. Never allow large pressure drops in the system, because this can
damage the pulse damper membrane. To avoid such pressure
drops, remove fittings of high-pressure tubing only after the pump
