Extech Instruments 382275 User Manual page 2

Introduction
Congratulations on your purchase of the Extech 382275 Single Output Laboratory Grade
DC Power Supply.
The dual action (coarse/fine tune) rotary encoder makes setting the voltage and current
levels ever so smooth, precise and fast. Setting, changing, and checking the current limit
level can be done easily without sparking the output poles.
The remote control functionality allows the output power on/off, voltage & current to be
adjusted without touching the front panel of the power supply.
It is suitable for a wide range of applications including laboratory, telecommunication,
production testing, field test of voltage critical distant load, powering of dc network etc.,
The three user defined presets facilitate quick access to frequently used voltage and
current settings.
This power supply is shipped fully tested and calibrated and, with proper use, will provide
years of reliable service.
Safety
WARNING
• Do not use this power supply near water.
• Do not operate or touch this power supply with wet hands.
• Do not open the casing of the power supply when it is connected to AC power.
• Refer all servicing to qualified service personnel only.
• Before replacing the fuse, identify and fix any problems.
• Replace the AC fuse with the same type and rating as the original fuse.
CAUTION
• Use a grounded 3 pin AC source.
• This unit is for indoor use only.
• Do not operate or place this unit in direct sunlight or in a humid or dusty location.
• Do not place near any heat source.
• Before plugging into local AC mains, check the rating label at the back of the unit.
• Do not block the ventilation openings of the unit.
• This unit must be used within the specified rating, regular excessive continuous
loading may cause damage to the power supply.
• The gauge size of the input power cable must be at least 3 "(0.75mm) and the total
length of power cable must not exceed 118" (3m)
2 382275/6 V1.0 08/09