3-4 Uson 628 Operator’s Manual
3.2.2 Power Supply
• The Uson 628 is powered by an external 24V DC power supply (2) supplied
with a mains cable (1) appropriate for the country of use.
• The PSU AC mains inlet connector must be connected to the AC supply using
an appropriate power lead.
• The nominal power supply requirement is 90 - 260V, 50/60Hz, 3.2A max.
• The power lead must be less than 3m (118")
• The PSU DC outlet connector (3) must be connected to connector C on the
Tester’s rear panel. See Figure 3–1 & See Figure 3–2.
Figure 3–2: Power Supply
WARNING: The tester operates on 24VDC from a power supply that must be
connected to an earthed (grounded) power supply of 100-240VAC 50/60Hz.
WARNING: Turn off the AC mains supply and the tester’s power switch (on
the rear panel) before connecting the power supply (PSU).
WARNING: The power lead plug is the disconnect device; it must be
accessible in an emergency.
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