User manual

OPERATION
27
CH1/CH2 Tracking Series Mode Background
Tracking series operation doubles the Voltage capacity of the GPD-3303 series by internally connecting CH1 (Master) and CH2 (Slave) in serial and combining the output to a single channel. CH1 (Master) controls the combined Voltage output level. The following describes two type of configurations depending on the common ground usage.
Tracking series without common terminal Connection Output rating
0 ~ 60V/0 ~ 3A 1. Press the SER/INDEP key
to activate the tracking series mode. The key LED turns on.
GPD-3303 Series User Manual
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2. Connect the load to the front panel terminals,
CH1+ & CH2− (Single supply).
Note: this diagram shows non-European terminals.
3. Press the CH2 key (LED
turns on) and then use the Current knob to set the CH2 output current to the maximum level (3.0A). By default, the Voltage and Current knob work in the coarse mode. To activate the fine mode, press the knob to turn the FINE LED on.
(Fine control)
• Coarse: 0.1V or 0.1A @ rotation click • Fine: the smallest digit @ rotation click
4. Press the CH1 key (LED
turns on) and then use the Voltage and Current knob to set the output voltage and current level.
5. To turn on the output, press
the output key. The key LED turns on.
6. Refer to the CH1 (Master) meter and indicator
for the output setting level and CV/CC status.