16
D.
Troubleshooting
If
the
MS2700E
transmitter
does
not
seem
to
perform
as
expected,
check
the
following
items:
CAUTION:
Before
performing
any
tests
or
maintenance
on
the
MS2700E
transmitter,
ensure
that
all
hazardous
area
requirements
are
met.
1.
Ensure
that
the
probe
is
operational
and
is
not
completely
corroded.
This
can
be
done
in
two
ways.
a.
Test
the
probe
with
a
portable
ER
meter
if
available.
b.
Test
the
probe
with
a
portable
resistance
or
continuity
meter
as
follows:
i.
Connect
one
test
lead
to
pin
‘A’
of
the
probes
6
‐
pin
connector.
ii.
Measure
continuity
to
each
of
the
other
pins.
There
should
be
continuity
(low
resistance)
to
each
pin.
NOTE:
Continuity
on
each
pin
does
not
ensure
that
the
probe
is
good.
However,
if
you
find
an
open
circuit
on
any
pins
then
it
is
almost
certain
that
the
probe
is
bad
and
should
be
replaced.
2.
Ensure
that
the
Probe
Selection
Switches
are
set
correctly
for
the
probe
being
used.
Confirm
the
probe
type
and
refer
to
Table
2
on
page
9
to
verify
the
appropriate
switch
settings.
3.
Perform
a
visual
inspection
of
the
circuit
boards
to
look
for
any
signs
of
mechanical
or
electrical
damage.
4.
Ensure
that
all
electrical
cables
and
wiring
are
in
good
condition.
5.
Ensure
that
all
electrical
contacts
are
secure
and
free
of
corrosion.
6.
Ensure
that
there
is
adequate
supply
voltage
at
the
power
connector.
7.
Verify
that
the
supply
voltage
polarity
is
correct.
8.
If
there
is
insufficient
supply
voltage
on
the
power
connector,
check
the
safety
barrier
(if
applicable)
for
a
blown
fuse
or
any
other
failure.
9.
Test
the
MS2700E
transmitter
using
the
supplied
Meter
Prover
(see
page
12.)
These
basic
checks
should
indicate
the
source
of
any
problem
(probe,
power
supply,
wiring,
etc.).
If
it
is
determined
that
the
MS2700E
transmitter
is
malfunctioning,
or
if
you
need
further
assistance
in
troubleshooting,
contact
Metal
Samples
Technical
Support.
CAUTION:
If
the
MS2700E
transmitter
shows
any
signs
of
damage,
remove
it
from
service
immediately
and
consult
the
factory.
