indicated
as
the
sum
of
both
amperemeters.
Notes:
Other types
of
regulated
DC
power supply can
not
be
connected for
parallel operation. The maximum
number
of
units for
parallel operation
is
2 units.
7. NOTES
ON
ENVIRONMENTAL CONDITION
7.1 Avoid
to
use
the
unit
in
such a place where
the
ambient tempe-
rature exceeds
40°C
or
under
the
direct sun shines. Limit
the
maximum
output
current,
when
the
unit
is
used
in
such a place
where ventilation
is
interrupted
or
where a radiation exists from
other
equipments.
7.2
Use
the
instrument within ±10% of
the
specified voltage
of
the
power source.
8.
CURRENT LIMITING CIRCUIT
When
the
output
terminals are short-circuited by mistake,
the
current
limiting circuit
is
activated
to
limit
the
flow
of
the
current
in excess
of
the
rating
output
current,
so
that
the
control elements and
the
amperemeter connected
in
series
in
the
instrument are protected from
the sudden damage.
The
output
limit
current
can be set
in
a range
of
10
to
100%
of
the
rating
current,
and when the
output
current
reaches
the
set value,
the
instrument operates
in
the
constant
current
condition.
As
the
output
current
comes down below the set value,
the
constant
voltage condition
is
automatically resumed.
-16-
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