Version 2.0
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6_26931B ELS2100_2100 Ice Se rvice Manual_vsn2.0_maste r.doc
Installing the Detector
Connect the power cord to the IEC inlet at the rear of the unit.
Check the operating voltage of your instrument, 110V 2A or 230V 2A, on the IEC inlet
fuse-holder on rear of unit.
Attach the gas inlet tube to the gas inlet at the back of the instrument.
The gas connection is a 4mm OD push- in fitting. The nitrogen gas should be dry, filtered
and have a minimum inlet pressure of 60psi, 60-100psi is required to achieve the maximum
operating instrument gas flow rate of 3.25 SLM throughout the temperature range.
Connect the waste tube to the waste outlet at the front of the detector and position the
other end in a waste collection bottle.
The solvent waste container supplied with the detector can be sited on the bench in front
of the instrument. Alternative waste collection vessels can be used if required but the bottom
of the waste tube must be below the height of the waste outlet from the instrument. The
waste tube must NOT be submerged in the liquid.
Connect the exhaust hose between the exhaust outlet and a fume hood.
Connect the instrument to the data recorder (computer, chart recorder, etc.) using the
cable provided. One output socket is provided giving a signal in the 0-1V range.
Connect the column outlet to the eluent inlet at the front of the unit) using a short length
(10cm) of tubing (1/16” OD, 0.010” ID) and a 1/16” Valco fitting.
Turn on the source gas to a pressure of about 60-100 psi. The gas will not flow though
the detector until the instrument in set to RUN mode.
Switch on the PL-ELS 2100/2100 Ice, and select a suitable method.
Start heating by selecting RUN mode using the arrow keys on the front keypad.
When the unit has equilibrated, the baseline should be checked to ensure that it is
acceptable for the experiment. At this point, with no liquid flowing into the instrument, the
noise should be no more than 0.2mV peak-peak. This verifies that the gas supply is clean
and dry. Any spikes in the baseline are usually indicative of particulate matter or water in
the gas supply.
Turn on the eluent flow and allow the system to stabilize for approximately 15 minutes.
THE ELUEN T FLOW CAN BE TURNED ON BEFOR E THE
INSTRUMENT HAS REACHED EQUILIBRIUM. IF THE ELUEN T
IS NOT EFFICIENTLY NEBULISED IT WILL EXIT THE
INSTRUMENT FROM THE NEBULISER DRAIN TUBE.
Again check the baseline noise as it should not have increased significantly. and should
be
1mV. Typically the baseline noise is 0.3mV peak-peak.
If the baseline noise is excessive, then one of the following may be taking place: -