Electrical requirements 2-5
Electrical requirements
This section describes the Prep system’s electrical configurations.
Electrical conditions
The system requires these electrical conditions:
• Grounded AC source, 100/120 or 220/240 voltage, 50/60 Hz, 500 VA
• No nearby source of electronic noise such as that cause by electric
motors or arcing relay contacts
• No abrupt load fluctuations
• Proper fuses installed
Voltage selections
You can adapt the system to operate at the nominal voltages shown in the
table below.
Changing the voltage
The system is preset for 120-VAC operation.
To change the voltage:
1. Ensure the front panel switch is to set to Off and the instrument
disconnected from the electrical source.
Warning: To avoid electric shock, make sure the power cord is
disconnected from the rear panel of the instrument before performing
this section’s procedures.
Operating voltage ranges
Nominal voltage Voltage range Fuse (Amps) Power (VA)
100 ±10% 4 400
120 ±10% 4 400
220 ±10% 2 400
240 ±10% 2 400
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