Extech 380820 Operating Manual

User's Guide

Universal AC Power Source + AC Power Analyzer

Model 380820

Introduction

Congratulations on your purchase of the Extech Model 380820. This Universal AC Power Source and AC Power Analyzer can be used to test products in the range of 85 to 250VAC with a frequency range of 45 to 65Hz. This unit also features a Standby Power

Measurement feature (10mW to 100W) for testing desktop and notebook PCs, LCD TVs, AC adaptor/chargers, and other products that continue to use power when connected to AC even though they are not in use. The Power Quality Measurement function can monitor Watts, Power Factor, Voltage, Current and Harmonics and includes a Cost Function Calculation mode for finding a product’s cost per day, month or year. This meter is shipped

fully tested and calibrated and, with proper use, will provide years of reliable service.

Safety

To ensure safe operation of the equipment and to eliminate the danger of serious injury from short-circuits (arcing), the following safety precautions must be observed:

• Prior to connection of the equipment to the mains outlet, check that the available mains voltage corresponds to the voltage setting of the equipment.

• Connect the mains plug of the equipment only to a mains outlet with an earth ground connection.

• Do not place the equipment on damp or wet surfaces.

• Do not subject the equipment to direct sunlight or extreme temperatures.

• Do not subject the equipment to extreme humidity or dampness.

• Replace a defective fuse only with a fuse of the original rating. Never short circuit

the fuse or the fuse housing.

• Do not exceed the maximum permissible input rating.

• Comply with the warning labels and other information printed on the equipment.

• Do not insert metal objects into the equipment by way of the ventilation slots.

• Do not place water-filled containers on the equipment.

• Do not operate the equipment near strong magnetic fields (motors, transformers,

etc.).

• Do not subject the equipment to shock or strong vibration.

• Keep hot soldering irons away from the equipment.

• Allow the equipment to stabilize at room temperature before use.

• Do not modify or customize the equipment.

• Do not place the equipment face-down on a work surface, table or work bench.

• All service and repair must be performed by qualified service personal.

• Do not block the ventilation openings of the unit.

• This unit must be used within the specified ratings, regular excessive continuous

loading may cause damage to the power supply.

• The gauge size of the input power cable must be at least 3” (75mm) and the total length of power cable must not exceed 118” (3m)

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Safety Symbols

Please read the statement thoroughly to prevent injury or loss of life, and prevent damage to this product.

Earth/Ground Terminal

AC (Alternating Current)

This unit has been tested and meets or exceeds the following standards:

1. EN61326-1: 2006: (CISPR11, IEC/EN 61000-3-2:2006, IEC/EN

61000-3-3: 1995+A1: 2001+A2: 2005 IEC/EN 61000-4-2/-3/-4/-5/-6/-

11)

2. EN61010-1: 2001

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Front Panel Description

1. Front Output Socket: Use the following formula to determine the continuous use capability of the output: Time (t) = 100 / Watt (w). For example, 100W power can be continuously output for 1 minute and 50W could be continuously output for 2 minutes. Switch off the tester for 20 minutes (for ventilation) between output sessions.

2. OPER/STBY: Press to enable/disable the output. When the unit is in STBY mode, the output is 0 volts. When the unit is in OPER mode, the power will not output until the voltage level is stable; this is to prevent damage to connected devices from unstable voltage.

3. Å Backspace: If a typing error is made, use the Å button to clear the digit to the left.

4. LCD: Liquid Crystal Display

5. RECALL: Recalls stored voltage and frequency values (there are 99 sets of preset values in the memory). The currently selected voltage and frequency values will clear when the RECALL button is pressed. Type a memory location number (1 to 99) and then press the V.ENTER button to confirm. If no data is stored in a particular location, the LCD will display “BLANK number” (e.g. “BLANK 33”). Use the STORE button to save a voltage/frequency value to a memory location.

6. Numeric Keypad: The numeric keypad is a user programming interface.

7. : Moves the cursor to the next digit.

8. OUTPUT FRONT/REAR: Selects the output. Press downward to display the Rear Output status. Press upward to display the Front Output status.

9. : Increases a value.

10. : Decrease a value.

11. POWER ON/OFF: Press to switch the supply ON or OFF.

12. V.ENTER: Press to confirm a program entry.

13. $: Calculates the power rate. Type the power rate first, then press $ to confirm. When

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