Getting Started
PS280 & PS283 User Manual 7
17.Output Terminals. These terminals for the right, variable power
supply allow you to plug in the test leads as follows:
H The red terminal on the right is the positive polarity output
terminal. It is indicated by a plus (+) sign above it.
HThe black terminal on the left is the negative polarity output
terminal. It is indicated by a minus (–) sign above it.
HThe green terminal in the middle is the earth and chassis
ground.
18.C.C. Indicator. If this is lighted, the power supply is producing a
constant current. See Figure 3 on page 10 for an illustration of the
constant voltage/constant current crossover point.
19.C.V. Indicator. If this is lighted, the power supply is producing a
constant voltage. See Figure 3 on page 10 for an illustration of
the constant voltage/constant current crossover point.
20.VOLTAGE Knob. Allows you to set the output voltage for the
right variable power supply. If the instrument is in a tracking
mode, the right power supply is the master and the VOLTAGE
knob affects both variable power supplies.
21.Output Terminals. These terminals for the 5 V FIXED power
supply allow you to plug in the test leads as follows:
HThe red terminal on the right is the positive polarity output
terminal.
HThe black terminal on the left is the negative polarity output
terminal.
22.The overload indicator lights when the current on the 5 V FIXED
power supply becomes too large.