User guide

6
Reverse polarity protection prevents accidental damage to the power supply
from improper connection to an external device, and current limiting protects
the equipment being powered, as well as the power supply.
The output is isolated from chassis and earth ground, which permits full flexibility
of connections. When needed, the (+) or (-) polarity may be strapped to ground,
or either polarity may be floated to an external voltage. Two supplies may be
connected in series as a 0-to-60 V power source, or two supplies may be
connected in parallel for up to twice the output current.
This power supply is well suited for a wide variety of electrical and electronics
applications in service shops, engineering labs, production testing, school
laboratories, and home use by hobbyists, where precise levels of low current are
required, including 4-20 mA loop testing and calibration or simple IC testing.
Features
• Low 1 mA settable current limit with 0.1 mA resolution
• Output on/off button
• Low ripple and noise
• Excellent regulation
• Constant voltage (CV) and constant current (CC) operation
• Two large, easy-to-read LED displays provide good visibility in bright or low
light
• LED indication for CV and CC modes
• Saved programmed values upon power-up
• RS-232 interface
• Pre-regulator for limiting internal dissipation for higher reliability
• Isolated output
• Overload protection
• Reverse polarity protection
• Power-on self test
• Modern functional configuration conserves bench space and aids
portability