Peak Tailing; Instrument Fails To Zero; No Power - Agilent Technologies InfinityLab 1290 Infinity II User Manual

6 Troubleshooting and Diagnostics
General Problems

Peak tailing

Probable cause
1
2

Instrument Fails to zero

Probable cause
1

No power

Probable cause
1
2
3
Agilent InfinityLab ELSD User Manual
Eluent particles lingering in the optical
chamber
Poor chromatography
Offset too high or output unstable due to
impurity in mobile phase
Mains lead not connected
Fuse failure
Power supply failure
Suggested actions
Increase evaporator gas flow rate.
Optimize HPLC separation.
Suggested actions
• Stop pump flow and switch off unit. Restart
unit and A/Z without liquid flowing.
• Refer to local distributor or Agilent
Technologies.
• Optical section contaminated and requires
cleaning.
Suggested actions
Attach mains lead to socket and inlet on rear of
instrument.
Replace fuse.
Call Agilent Service representative.
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