8
Probe connector
Connector CN2 (J1 on PCB):
U
o
= 5 V
I
o
= 352.8 mA
P
o
= 0.44 W
Special
Conditions
1.
Probe
dielectric
rating
<
500V
r.m.s.
Do
not
exceed.
2.
Do
not
install
the
probe
(exposed
portion
of
the
sensing
elements)
in
the
explosion
dust
atmosphere
(Group
III).
3.
Networked
(“daisy
‐
chained”)
arrangement
not
for
use
in
Group
IIC/IIIC
environment.
4.
Up
to
32
transmitters
are
allowed
in
the
daisy
‐
chain
arrangement.
5.
Only
Certified
cable
glands
and
blanking
plugs
of
protection
types
‘d’
and
‘tb’
should
be
used.
Protection
rating
of
IP66
should
be
maintained.
Whenever
an
electrically
driven
sensor
or
measuring
device
is
used
in
a
potentially
explosive
environment
the
measuring
system
must
be
installed
in
such
a
way
that
electrical
energy
is
either
effectively
isolated
from
the
explosive
environment
(via
explosive
‐
proof
containers,
cable
conduits,
etc.)
or
the
amount
of
electrical
energy
produced
in
the
hazardous
area
must
be
limited
to
an
intrinsically
safe
level.
Limiting
electrical
energy
is
the
most
practical
method
of
protecting
the
MS2701E
transmitter
when
it
is
installed
in
a
hazardous
area.
In
the
MS2701E
transmitter,
electrical
energy
limits
are
maintained
by
the
use
of
appropriate
safety
barriers
installed
in
the
power
and
data
wiring.
The
safety
barriers
must
be
located
in
the
safe
area
near
the
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
MS2701E
transmitter,
the
transmitter
wiring
connections
must
be
connected
to
the
safety
barrier’s
hazardous
area
terminals.
All
other
connections
must
be
made
to
the
barrier’s
safe
area
terminals.
The
type
of
repeater
safety
barriers
used
with
the
MS2701E
transmitter
depends
on
the
specific
classification
of
the
hazardous
environment
in
question.
However,
the
entity
parameters
must
match
those
of
the
MS2701E
transmitter.
CAUTION:
For
hazardous
area
installations,
the
maximum
inductance
and
capacitance
of
the
field
wiring
between
the
safety
barrier
and
the
transmitter
cannot
exceed
the
entity
parameters
of
the
selected
barrier.