Meter Description; Operation - Extech Instruments 382203 User Manual

Meter Description

1. Voltage and Current LCD displays
2. Current limit status LED
3. Power switch with status LED
4. 5V & 12V fixed output terminals
5. Output terminals for variable supply
6. Variable voltage and current adjustment knobs
Note: The Model 382213 (LCD metering) is shown above. The Model 382203 (shown on
the cover page) uses analog metering.

Operation

1. The Power Supply must be powered using the rated line voltage (110V or 220V) within
+ 5%.
2. Before turning the power supply ON, remove all connected loads and set the Voltage
Adjustment Knob to the full counter-clockwise position (0V DC output).
3. To operate the power supply as a constant current supply, the current output should be
set between 10% and 100% of the rated value (3A). The Current Limiting Indicator will
light when the current limiting circuit is activated.
4. Use the Current and Voltage Adjustment knobs for setting variable Current and Voltage
output signals respectively. Use Variable Output Terminals for connections.
5. For 5VDC and 12VDC outputs, use the Fixed Output Terminals.
6. The analog or digital displays will indicate actual current and voltage outputs.
7. Keep the meter's cooling vents (top and sides) clear of obstacles to prevent
overheating.
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