B&K Precision 1673 - Manual - Manual (Page 12)

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For example, if the load is such that the power supply is operating in the constant voltage
mode, a regulated output voltage is provided. The output voltage remains constant as the
load increases, up until the point where the preset current limit is reached. At that point,
the output current becomes constant and the output voltage drops in proportion to
further increases in load. The crossover point is indicated by the front panel LED
indicators. The crossover point is reached when the CV indicator goes off and the CC
indicator comes on. Similarly, crossover from the constant current to the constant voltage
mode automatically occurs from a decrease in load.
5.3 System Configuration
Models 1672 and 1673 have two variable outputs, which can work independently, in
series tracking mode, or parallel mode with pull and push switch arrangements provided
by the master voltage and current control knobs. Users can also connect multiple units in
series or parallel mode to increase their voltage or current.
5.3.1 Independent Mode
Ensure the master voltage and current control knobs are in the push condition to operate
the variable outputs independently. Connect the appropriate load between the positive
and negative terminal.
5.3.2 Series Tracking Mode
In this mode, the negative output terminal of the master gets connected internally to the
positive output terminal of the slave.
1. Pull the voltage adjustment knob of the master. The green LED will light up to indicate
series tracking mode.
2. Set output voltage with the voltage adjustment knob of the master. The display of the
master shows half the voltage of the actual output available across the positive output
terminal of the master and the negative output terminal of the slave.
The output is available across the positive output terminal of the master and the negative
output terminal of the slave.