Extech Instruments 382260 User Manual page 2

Introduction
Congratulations on your purchase of the Extech 80W 3-in-1 Switching DC Power Supply.
The Model 382260 has three output ranges that perform like 3 power supplies in one. It
can be used for many applications including bench testing, field service, hobby and
telecommunication equipment use. This power supply is shipped fully tested and calibrated
and, with proper use, will provide years of reliable service.
Safety
This manual contains important safety and operation instructions for correct use of the
power supply. Read through the manual and pay special attention to the markings and
labels of this unit and equipment to be connected.
Pay special attention to these two types of notices used in this manual
WARNING : Failure to observe this warning may cause injury to persons and
damage to power supply or connected equipment.
CAUTION : Failure to observe this warning may result in damage to equipment and
Improper functioning of the power supply.
WARNING :
1. Do not use this power supply near water.
2. Do not operate or touch this power supply with wet hands.
3. Do not open the casing of the power supply when it is connected to ac
mains.
4. Refer all servicing to qualified service personnel only.
5. Before replacing the AC fuse find out and clear up the cause first.
6. Replace the AC fuse with the same type and rating as the original fuse.
CAUTION :
1. Use a grounded 3 pin AC source .
2. This unit is for indoor use only .
3. Do not operate or place this unit in a humid, dusty, in direct sunlight
location or near any heat source.
4. Before plugging into local AC mains, check with the rating label at the back
of the unit.
5. Do not block any ventilation openings of the unit.
6. This unit must be used within the specified rating, regular excessive
continuous loading may cause damage to the power supply.
7. The gauge size of input power cable must be at least 0.75mmsq and the
total length of power cable must not exceed 3m.
8. Input Fuse Recommended: T3AL250V (3A Time-Lag)
2 382260 V1.3 10/08