Extech 382202 – Power Supply 18V/3A Single Output DC

• Constant voltage or current
• Dual backlit LCD displays for voltage and current
• Short circuit protection
• Current limiting
• High load/line regulation

The Extech 382202 is a solid-state, compact, regulated power supply suitable for many applications including bench testing, field service, hobby and telecommunication equipment use. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

1. Voltage display

2. Current display

3. Negative (-) output terminal

4. Positive (+) output terminal

5. Illuminated On/Off switch

6. Current adjustment

7. Voltage adjustment

To avoid having the load draw too much current, a current limit can be set as follows:

• With the voltage and current output adjustments set fully off, carefully short the positive and negative output terminals together.
• Turn the Output Voltage knob clockwise to the 25% position (approx).
• Adjust the Output Current knob clockwise until the desired current level is displayed.
• Turn the Output Voltage knob counter-clockwise (current display will go to 0.00).
• Connect a load to the output terminals and adjust the voltage to the desired level.