8
boundary
between
the
safe
and
hazardous
areas.
The
safety
barrier
will
repeat
the
signal
current
generated
by
the
Transmitter
and
will
relay
the
signal
to
the
data
receiving
station.
Caution:
When
a
safety
barrier
is
used
with
the
MS2600E
system,
the
current
loop
cable
must
be
connected
to
the
barrier’s
hazardous
area
terminals.
All
other
connections
must
be
made
to
the
barrier’s
safe
area
terminals.
The
type
of
repeater
safety
barrier
employed
in
the
MS2600E
system
depends
on
the
specific
classification
of
the
hazardous
environment
in
question.
Metal
Samples
will
provide,
upon
request,
assistance
and
technical
advice
in
the
selection
of
a
repeater
safety
barrier
or
its
equivalent.
For
most
installations,
Metal
Samples
recommends
the
intrinsically
safe
MTL
5441
Repeater
Power
Supply.
The
maximum
length
of
the
current
loop
cable
that
connects
the
MS2600E
Transmitter
to
the
repeater
safety
barrier
is
as
follows:
Example:
17.5
Volts
22
AWG
Cable
=
5,434
feet
maximum
16
AWG
Cable
=
21,788
feet
maximum
CAUTION:
For
hazardous
area
installations,
the
maximum
inductance
and
capacitance
of
the
loop
wiring
between
the
safety
barrier
and
the
transmitter
cannot
exceed
the
entity
parameters
of
the
selected
barrier.
