81233-4r1
Page 9 of 9
8 Set Up & Adjustments
8.1
Connect 24V power to the unit, +24V (pin 1), 0V (pin 2), do not Enable the unit.
8.2
Connect a multi-meter to pin 15 with return to pin 14.
8.3
Turn Filament Current Limit adjustment potentiometer on the case side to set a safe value
for the maximum filament current. 0
→
10V corresponds to 0
→
5Amp filament current.
8.4
Connect the multi-meter to pin 3 with return to pin 14.
8.5
Turn the Pre heat adjustment potentiometer on the case side to obtain the required filament
pre heat current 0
→
5V corresponds to 0.5A
→
2.5A filament current.
8.6
If external HV control is required connect the control signal to pin 8 with return to pin 14. 0
→
10V corresponds to 0
→
+10kV
8.7
If internal HV control is required link pins 7 and 8 then turn the HV preset adjustment on the
case front whilst monitoring the voltage at pin 8 (return to pin 14). Set for the HV potential
required.
8.8
If external emission control is required connect the control signal to pin 12 with return to pin
14. 0
→
10V corresponds to 0
→
1mA emission current.
8.9
If internal emission control is required link pins 12 and 13. Turn the Emission adjustment
potentiometer on the case side to set the emission current for the value required.
