Troubleshooting the 600E Pump 117
Figure 6-2 Low System Pressure Troubleshooting (Continued)
Figure 6-2
Continued from
Previous Page
Is Pump Flow Rate Set
too Low?
Set to Correct Flow Rate (See 600E Multisolvent
Delivery System User’s Guide).
Has Ambient
Temperature Changed?
Are There Any Visible
Leaks?
Is Correct Eluent Being
Used?
Instrument Problem. Call
Waters Technical Service.
Check Operating Temperature. If Temperature Is
too High, Stabilize Operating Environment.
Tighten Any Loose Fittings (Do Not Overtighten).
Verify Eluent Used. If Necessary, Change the
Eluent.
Yes
No
No
No
Yes
Yes
Yes
No
Is Autosampler Stuck in
Purge?
Is Correct Flow Rate
Being Delivered through
Fluid System?
Autosampler Problem. See Autosampler
Operator’s Manual.
Measure Flow at Detector Outlet with
a Graduated Cylinder and Stop
Watch. Is Flow Rate Much Different
than Pump Setting?
Pump Problem. See
Section 6.3.
Yes
No
No
Yes
Yes
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