Troubleshooting Based On Instrument Signals; Troubleshooting Based On Instrument Signals; No Signal Is Observed - Agilent Technologies 1260 Infinity User Manual

Troubleshooting Based on Instrument Signals

In all cases of troubleshooting for the detector signal, noise tests as described
in
detector problems from application or system problems and in order to
acquire parameters under defined conditions.

No Signal is Observed

If no signal is observed:
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Agilent 1260 Infinity ELSD User Manual
"Perform the Noise Tests"
Make sure that the light source is on.
Run a stray light test and check, whether the stray light signal for gain 12 is
in the range of 100 mV to 150 mV.
Check that the gas valve is opened and the pressure regulator is opened (if
any). A pressure display that is greater than 0 indicates that there is gas
flow.
If the stray light test passes and the gas flow is on, the nebulizer is probably
blocked. Clean the nebulizer as described in
page 86.
If cleaning the nebulizer does not solve the problem, replace the nebulizer.
Troubleshooting and Diagnostics

Troubleshooting Based on Instrument Signals

on page 69 should be run in order to distinguish
"Cleaning the Nebulizer"
6
on
79