Model 2231A-30-3 Triple-channel DC Power Supply Reference Manual Section 2:Quick reference
077100401/September 2014 2-9
Make sure the voltage selector switch is set according to the present line voltage (110 VAC or
220 VAC) when the power supply is shipped from the factory. Change the voltage setting if it is
incorrect.
3. Verify the correct power-line fuse is installed.
If the fuse is damaged, please see the table below to replace the fuse for your power supply.
Model Fuse Specifications
2231A-30-3
3.15 A (220V AC)
6.30 A (110V AC)
4. If you need more help, contact Keithley.