B&K Precision 1671A - Manual - Manual (Page 13)

7
OPERATING INSTRUCTIONS
SAFETY PRECAUTIONS
Use only a polarized 3-wire outlet. This
assure s that the poser supply chassis and
case are connected to a good earth ground
and reduces danger of electrical shock
There is little danger of electric shock from the power supply output,
which produces a maximum of 30 volts dc. However, there may the great
danger of electrical shock if the power supply output is connected to an
external high voltage. Some equipment being powered may contain high
voltage and present a shock hazard. Observe caution. If the power supply
output is floated (referenced to a voltage rather than earth ground) turn off
the power supply and the equipment under test when making connections.
Never float the power supply to a potential greater than 100 volts peak
with respect to earth ground.
Observe all TEST INSTRUMENT SAFETY precautions listed in the
front of this manual.
EQUIPMENT PROTECTION PRECAUTIONS
Avoid using the power supply in ambient temperatures above +40°C
(104°F). Always allow sufficient air space around the opening at the rear
of the power supply and the top and side vent openings for effective air
flow to prevent internal heat build-up. Typically, a two inch space at the
sides, as well as a six inch space at the top and rear of the power supply is
adequate. DO NOT block the fan opening at the rear of the power supply
or
the vent on top of the power supply. DO NOT place objects on top of the
power supply.
Protection provided by the equipment may be impaired if the
equipment is used in a manner not specified by the manufacturer
Don't put this product to a position so that it is difficult to unplug the
device from the appliance inlet
Unplug this product from the wall outlet before cleaning. Do not use
liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
Although the power supply is protected against overload and short
circuits, avoiding these conditions in regular use results in maximum
stability and reliability.
Make certain that hook-up is as intended before turning power supply
on. Incorrect polarity may damage the equipment being powered.
For indoor use only.
POWER SUPPLY HOOK-UP and OPERATION
Variable Voltage Output
1. Turn off the power supply and equipment being powered.
NOTE
Use solid copper hook-up wire of at least 18 gauge. Using smaller wire
may increase the source resistance "seen" by the load, thereby derating the
regulation capabilities of the poser supply. Tighten connections snugly to
assure low resistance.
CAUTION