Veeco MPS-3000 CE, Technical Manual

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4. Select the discharge current limit. For initial start-up and training pur-
poses, select 1.00A.
Refer to
“Recommended Discharge Current Limits” on page 83 for
suggested discharge current limits for different source sizes.
a. Select the Discharge power supply with the MODULE switch. The
letters DISCHARG appear above the switch.
b. Select Limit with the FUNCTION switch. The word LIMIT appears
above the switch.
c. Adjust the current limit up or down as needed. The value appears
on the Discharge Current display.
Unless the source size is known, discharge current limit will be factory-set at
2.00A.
d. The final selected value is stored automatically in the memory, as
indicated above the MEMORY switch.
5. Select the discharge current. For initial start-up and training purposes,
select 1.00A.
a. Select the discharge supply with the MODULE switch and current
with the FUNCTION switch. The words DISCHARG and CURRENT
appear above the appropriate switches.
b. Enter the chosen value by turning the Adjust knob. The pro-
grammed value appears on the Discharge Current display.
c. As the Adjust knob is turned, the discharge current is entered auto-
matically into the selected memory.
6. Select the hollow cathode keeper voltage limit.
The recommended and factory-set keeper voltage limit is 25V.
a. Select the Hollow Cathode power supply with the MODULE switch.
The letters HC appear above the switch.
•
Limit will be selected automatically and the word LIMIT
appears above the FUNCTION switch.
b. Adjust the keeper voltage limit up or down as needed. The value
will appear on the Hollow Cathode Keeper Voltage display.
c. The final selected value is stored automatically in the memory, as
indicated above the MEMORY switch.
7. Select the hollow cathode neutralizer keeper voltage limit.
The recommended and factory-set keeper voltage limit is 25V.
a. Select the Hollow Cathode Neutralizer power supply with the
MODULE switch. The letters HCN appear above the switch.
NOTE
NOTE
NOTE