User manual

9
2 Getting Started
Before connecting and powering up the instrument, please review and
go through the instructions in this chapter.
2.1 Input Power and Fuse Requirements
Input Power
The supply has a universal AC input that accepts line voltage input
within:
AC Input: 170 V – 265 V (10% output de-rated when operating below
190 VAC)
Frequency: 47 Hz – 63 Hz
Before connecting to an AC outlet or external power source, be sure
that the power switch is in the OFF position and verify that the AC
power cord, including the extension line, is compatible with the rated
voltage/current and that there is sufficient circuit capacity for the power
supply. When the AC input voltage is lower than the full-load voltage,
which is 200VAC, the supplies will activate an inner over temperature
protector and cut off the output in response to the condition. To ensure
that the entire test process can be completed smoothly, confirm that
the input AC voltage is within the specified range. Once verified,
connect the cable firmly.