Oritron Dionex Ion Chromatography System ICS-2100 User Manual

Page 140

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ICS-2100 Ion Chromatography System

128

Doc. 065291-01 3/09

5. Slide the new cell assembly straight into the opening in the component panel

until it stops and the cell cover is flush against the component panel. The
cell’s electronic connector automatically plugs into a connector inside the
ICS-2100 when you push the assembly into the opening.

6. Tighten the screws on the cell front cover fingertight.

7. Close the side panel door and tighten the two mounting screws.

8. Reconnect the inlet and outlet lines.

9. Turn on the ICS-2100 power.

10. Calibrate the new cell in Chromeleon or on the ICS-2100 touch screen

DIAGNOSTIC

page. Calibration of a new cell consists of three parts:

Running the offset calibration, which measures the output of the cell
electronics alone and determines an offset value to be applied to raw
conductivity readings.

Running the slope calibration, which measures the output of the cell
electronics when a built-in dummy cell, which provides a constant
conductivity reading of 21

μ

S, is automatically enabled. The slope value

is applied to raw conductivity readings.

Entering the cell constant measured at the factory. The ICS-2100 uses the
cell constant to determine the measured conductivity.

To calibrate the cell in Chromeleon:

a.

Open the Wellness Panel (see

Section 5.1.1

)

b. Under Electric Conductivity Cell Calibration, click Offset Cal.

c.

When the offset calibration is complete, click Slope Cal.

d. Click Calibration Details. Under Conductivity Cell Cal Details, enter

the Cell Constant value printed on the front of the cell.

e.

In the field next to the Download button, verify that Current is selected
and then click Download to download the new value to the ICS-2100.

f.

To ensure that the new values are recorded in the ICS-2100 memory, do
not turn off the ICS-2100 power for at least 1 minute after downloading.

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