Instruction Manual

6
4. PRECAUTIONS FOR USE
4.1 . CONFIRMING THE SUPPLY RANGE
The unit must be used within its specified range. The rated input
voltage can be found on the rating table under the unit. Before
plugging into the AC supply outlet, check if the input rating conforms
to your local supply. For certain models, a voltage selector is
available, switch the voltage selector to the correct position before
use. Also, please check that you have the correct fuse inserted in the
fuse box below the AC input receptacle.
4.2. PRECAUTIONS FOR CONNECTION OF
OUTPUT TERMINALS
These units are a floating type power supply. For ordinary use, be
sure that the MASTER/SLAVE switch on the rear panel is set to
MASTER position and either the (+) output terminal or the (−)
terminal is connected to the GND terminal (chassis GND) via the
shorting bar.
Warning: For model 1622A and 1623A, the maximum output
voltage is up to 60Vdc. Touching the live metal part of output terminals
may be hazardous. User must avoid touching the live metal part of output
terminals.
4.3. OPERATING ENVIROMENT
 Be sure to use this unit within the specified ambient
temperature range listed in the specification table.
 Because the unit is cooled by natural convection, do
not place objects on top to block the convection. Also
user must avoid placing the unit on or near any heat
emitting devices or use multiple units in stacked
configuration. For best results, use the unit in an
environment that has good cross-ventilation.
 Altitude up to 2000M
 Installation category: CAT II
 Pollution degree: 2
 Indoor use only