1100 Series Nano Pump Service Manual 83
Troubleshooting and Test Functions 2
Fourth plateau negative or unstable and at least one other plateau positive
Potential Cause Corrective Action
Air in pump chamber of channel B or seals not
yet seated.
Flush channel B thoroughly with isopropanol
under pressure (restriction capillary).
Loose active inlet valve in channel B. Tighten the active inlet valve in channel B
(14mm wrench). Do not overtighten!
Loose pump head screws in channel B. Ensure the pump head screws in channel B are
tight.
Loose outlet valve in channel B. Ensure the sieve in the outlet valve is installed
correctly. Tighten the outlet valve.
Leaking seal or scratched plunger in channel B1. Exchange the pump seals in channel B. Check
the plungers for scratches. Exchange if
scratched.
Defective active inlet valve in channel B. Exchange the active inlet valve in channel B.
To Next Page
Loading...
Need help?
General
