Dionex ICS-3000 - Peak Retention Times Are too Early; Peak Retention Times Are too Late; No Peaks

8 • Troubleshooting
Doc. 065031-04 1/08 183
8.4 Peak Retention Times Are Too Early
• Eluent concentration setting is too high
The correct eluent concentration setting depends on several factors (the flow
rate, EluGen cartridge type, etc.). Refer to Section 4.7
for a list of valid
concentration ranges for the cartridges, and then edit the program as required.
• DP/SP flow rate is too low
Increase the DP/SP flow rate.
• Inoperative eluent proportioning valve (gradient pump only)
The proportioning valve assembly should be replaced. Contact Dionex for
assistance.
8.5 Peak Retention Times Are Too Late
• Eluent concentration setting is too low
The correct eluent concentration setting depends on several factors (the flow
rate, EluGen cartridge type, etc.). Refer to Section 4.7
for a list of valid
concentration ranges for the cartridges, and then edit the program as required.
• DP/SP flow rate is too high
Decrease the DP/SP flow rate.
• Inoperative eluent proportioning valve (gradient pump only)
The proportioning valve assembly should be replaced. Contact Dionex for
assistance.
8.6 No Peaks
• EG power is not turned on
1. Check that the
POWER button on the front of the EG is turned on.
2. Check that the EG main power switch (on the rear panel) is turned on.
3. Check that the main power cord is plugged into both the EG rear panel
connector and the power source. Check that the wall outlet has power.