Dionex ICS-3000, Руководство оператора

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9 • DC Service
Doc. 065031-04 1/08
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3. On the Wellness panel under External Conductivity Cell
Calibration , click Instructions for a summary of the procedure
(described in detail in this section).
4. Disconnect the pump output line from the injection valve.
5. Disconnect the line from the suppressor
ELUENT OUT
port to the cell
inlet and connect the pump output line directly to the cell inlet.
6. Verify that there is a minimum of 7 MPa (1000 psi) of backpressure.
7. Set the cell heater to 35 °C
.
Allow the cell to reach this temperature
and then wait an additional 5 minutes to let it stabilize.
8. Begin pumping 1.0 mM KCl through the cell at 1.0 mL/min.
9. Wait until the total conductivity reading stabilizes (in about
15 minutes). Open the Wellness panel again and click Calibrate .
After calibration, the conductivity reading should be 147.00 ± 2
μ
S. If
this is not the case, contact Dionex for help.
10. To record the new calibration value in the Audit Trail, click the Log
button for the cell that was calibrated.
11. Flush the KCl solution from the system by pumping ASTM Type I
(18 megohm-cm) filtered and deionized water through the cell. When
the conductivity drops to less than 1
μ
S/cm, stop the pump.
12. Reconnect the pump to the injection valve and reconnect the line
from the suppressor to the cell inlet.
9.23.2 Replacing a Suppressor
Refer to the suppressor manual for guidance about when to replace a
suppressor. Suppressor manuals are included on the Dionex Reference
Library CD-ROM (P/N 053891).
1. Refer to the suppressor quick start guide (shipped with the
suppressor) for instructions on preparing the suppressor before initial
use.
2. Press the
POWER
button on the front of the DP/SP to turn off the
pump.
3. Press the
POWER
button on the front of the DC to turn off the DC.