
GASMAX CX Operation & Maintenance Manual, Revision 1.0
Page 30
Figure 7-1: GASMAX Sensor Replacement
Local
Smart
Sensors
are
automatically
recognized
by
the
GASMAX
CX
and
the
Smart
Sensor
identification
screen
should
appear
immediately
after
the
installation
of
a
local
Smart
Sensor.
If
the
sensor
is
the
same
gas
type
as
was
previously
installed,
the
sensor’s
calibration
data
will
be
uploaded
into
the
GASMAX
CX.
All
other
parameters
stored
in
the
GASMAX
CX
will
be
retained.
GASMAX
CX
units
can
be
reconfigured
for
different
sensors
by
simply
installing
a
different
type
compatible
sensor.
If
a
new
sensor
TYPE
is
installed,
the
Smart
Sensor
identification
screen
will
appear,
followed
by
the
ERROR
CODE
01
message
and
the
user
will
be
given
the
opportunity
to
confirm
the
new
sensor
type.
If
the
user
activates
the
EDIT
key,
all
data
stored
in
the
new
sensor’s
database
–
including
range,
tag
name,
cal
span
value,
engineering
units
and
alarm
levels
–
will
replace
the
current
settings.
SENSOR
REPLACEMENT
–
REMOTE
SENSORS
To
replace
a
GASMAX
remote
sensor:
1.
Declassify
the
area
or
remove
power
to
the
GASMAX
CX.
2.
Unscrew
the
sensor
head
cover.
If
unable
to
open
the
cover
by
hand,
use
a
Sensor
Head
Replacement
Tool
(p/n
10
‐
0187).
3.
Remove
the
old
sensor
by
pulling
straight
down.
NOTE:
DO
NOT
TRY
TO
UNSCREW
THE
SENSOR.
PULL
STRAIGHT
DOWN!