Checking Operation Of The Els Detector - Agilent Technologies 1290 Infinity II User Manual

Checking Operation of the ELS Detector

1 Switch on the ELS Detector. If using OpenLAB CDS ChemStation or
2 In OpenLAB CDS ChemStation or EZChrom, set operational parameters
For control outside of OpenLAB CDS ChemStation or EZChrom, use the front panel to
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change the ELS detector settings. Initiate heating by selecting RUN mode using the arrow
keys on the front keypad.
When the unit has reached temperature, the baseline noise should be checked to ensure
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that it is < 0.2 mV peak-peak. This verifies that the gas supply is clean and dry.
3 If the baseline noise is within the limits, autozero the detector.
Baseline noise should not have increased significantly and should be ≤0.5 mV. Typically
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pure water should give no more than 0.4 mV peak-peak, whilst pure organic solvents
should be less than 0.3 mV.
4 Turn on the eluent flow and allow the system to stabilize.
5 Again check the baseline noise.
Where noise and all other conditions are acceptable, the instrument is
ready to begin work.
Some volatile buffers can generate considerable offsets and increased noise levels.
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Agilent 1290 Infinity II ELSD User Manual
EZChrom, the front panel keypad will become locked when launching
the software.
(i.e. nebuliser and evaporator temperature), and download them to the
instrument. Then turn the ELS detector status to On.
However, if the baseline noise is outside the limits, refer to the
Troubleshooting section for steps to rectify this.
Installing the Module
Installing the Module
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