Siemens ADVIA 1800, Operator'S Manual, Page: 173 / 222

Maintenance 173
Figure 5-37. ISE electrode plate thumbscrew
7. Remove the electrodes and replace it with the dummy electrode.
8. At the ISE Operation window, in the Bufferprime area, type
50
in the Times field.
9. Select
Execute
10. When prompted, select
Yes
to execute buffer prime.
Washing the lines
1. Remove the buffer bottle with the deionized water and replace it with a bottle filled
with a solution of 475 mL of deionized water and 25 mL probe wash 3 solution.
2. At the ISE Operation window, in the Bufferprime area, enter
50
in the Times field.
3. Select
Execute
.
4. When prompted, select
Yes
to execute the buffer prime.
Rinsing the lines
1. Replace the probe wash 3 solution bottle with a bottle of deionized water.
2. In the Bufferprime area, enter
50
in the Times field, then select
Execute
.
3. Remove the dummy electrode.
4. Reinstall the Na, K, and Cl electrodes.
5. In the Initialize area, select
Execute
.
6. Before reinstalling the buffer-solution bottle, thoroughly rinse the buffer bottle cap,
float switch, and tube with deionized water and dry completely.
7. Install the buffer bottle or replace it if the volume is low.