Siemens ADVIA 2400 - Priming the Ises

168 ADVIA 2400 Operator’s Guide
4. Insert the electrode connectors.
CAUTION
If a space exists between the electrode connections, the plate retaining the electrodes
cannot close. If you cannot close it, move each electrode left and right little-by-little.
Do not force the electrode. Fasten the thumbscrew tightly. If the retaining plate
loosens during measurement, liquid could leak, causing a problem with the
instrument.
Priming the ISEs
1. At the ISE Operation window, select Execute to the right of the word Initialize.
2. Select
Yes when prompted to execute.
3. In the Bufferprime area, enter
3 into the Times field.
4. Select
Execute, then select Yes when prompted to execute buffer prime.
5. Verify the liquid is discharged smoothly from the dilution bowl during priming.
6. If the liquid is increasing without being discharged, a leak exists, an electrode is
incorrectly positioned, or a clog is in the drain system. If the liquid increases,
immediately stop the instrument.
IMPORTANT
If clogging occurs, the most probable cause is that the flow path is clogged inside the
electrode. Remove the Na and K electrodes, and check them by transmitted light to
see whether the flow path is clogged or not. You cannot do this for the Cl electrode
because of its construction. When in doubt, even if you cannot find a problem, try
replacing the electrode.
7. Mount the stainless steel cover on the top of the ISE unit by sliding it inside and
fasten the screw retaining the cover.
NOTE
When sliding it, be careful not to scratch the tubes or dilution bowl. When fastening
the screw, verify that the cover is not caught in the groove and is not loose.
8. Reinstall the cover and tighten the screws.
9. Replace the DPP shield and secure it in place with the Phillips screw.
10. At the ISE Operation window, in the Initialize area, select
Execute, then select Yes.
NOTE
The ISE wash is automatically turned on.
11. After initialization is complete, select
Exit, then select Yes.
Calibrating the ISEs
1. At the Operation Panel, select Initialize.
2. At the Menu Panel, select
Maint., then select ISE Operation.
3. At the ISE Operation window, in the Calibration area, select
Execute.
4. When prompted, select
Yes to execute calibration.