Shimadzu PDA-7000, Instruction Manual

Page: 81 / 108

5 Maintenance
5-17
28 In order to even out the tip of the electrode that has been sharpened, recondition the tip
using discharge by following the procedure below. With this setting, discharge lasts for
approximately two minutes.
(i) Place a sample on the spark stand, select Preparation - Waste Discharge in the
menu to open the Waste Discharge screen, and set the condition below on
Condition 2 tab.
No. of emission 1 time
Purge time 3 sec.
Discharge condition SEQ1 Cleaning
SEQ2 Cleaning
SEQ3 Cleaning
cleaning Cleaning
Discharge time SEQ1 9999
SEQ2 9999
SEQ3 9999
cleaning 9999
(ii) Start the discharge by pressing 1:Start and wait until it is finished.
29 After reconditioning of the tip of the electrode, the total length of the electrode becomes
approximately 0.6mm shorter.
Adjust the position of the electrode again following steps 1, 2, 20 to 27.
Note
Be sure to readjust the analysis gap after reconditioning the tip of the
electrode.