
GASMAX CX Operation & Maintenance Manual, Revision 1.0
Page 37
CHANNEL
SETTINGS
MENU
The
Channel
Settings
Menu
allows
the
user
to
adjust
individual
channel
or
sensor
‐
specific
features.
Data
in
the
Channel
Settings
Menu
is
uploaded
from
Smart
Sensors,
and
written
back
to
any
local
Smart
Sensor
if
changed
in
the
menu.
Figure 10-3: Channel Settings Menu Tree (1)
Channel x
Alarm 1
→
Alarm 2
→
Alarm 3
→
Fault Alarm
→
Data From
→
Temp. Comp.
→
Configure
→
Calibrate
→
Channel Settings
Channel 1
→
Channel 2
→
Alarm x
Setpoint 20.00
Latching No
Trip
On
High
Fault Off
On Delay(sec) 0
Off Delay(min) 0
Dead Band % 1
Fault Alarm
Setpoint -10.00
Data From
EC Sensor
Remote Sensor No
Min Raw 800
Max Raw 4000
Filter Samples 20
Polarity POS
PGA Gain
→
Heater Enabled No
Heat(degC) 10.0
All
three
relay
outputs
are
identical
and
can
be
set
to
respond
to
channel
1
or
channel
2
events.
The
fault
relay
is
always
dedicated
to
fault
events.
Both
channel
setup
menus
are
identical
so
only
one
is
shown.
Alarm
X
menu
(all
three
alarm
setting
menus
are
identical)
Set
Point
is
the
engineering
unit
value
where
the
alarm
trips.
It
may
be
negative
or
positive.
Latching
YES
causes
the
alarm
to
remain
active
even
after
the
event
clears.
NO
clears
the
alarm
automatically.
Trip
On
HIGH
causes
the
alarm
to
activate
if
the
value
goes
above
the
setpoint.
Trip
On
LOW
activates
the
alarm
if
the
value
goes
below
the
setpoint.
On
/
Off
Delay
adjusts
the
time
delay
between
the
time
when
the
event
occurs
and
when
the
alarm
is
activated.
Deadband
prevents
alarm
cycling
when
the
value
is
close
to
the
alarm
level.
Fault
Alarm
setpoint
is
typically
set
at
‐
10%
of
full
scale.
Data
From
Menu
Data
From
determines
the
source
of
the
data
for
this
channel.
Min
Raw
/
Max
Raw
–
Set
the
range
of
the
input
A/D
converter.
Normally
set
to
800
(min)
and
4000
(max).
Useful
if
a
sensor’s
output
does
not
provide
a
full
range
signal.
Filter
Samples
–
Number
of
samples
used
by
the
smoothing
filter.
PGA
Gain
–
sets
the
analog
amplification
level
in
the
smart
sensor
interface
circuit.
WARNING:
Changing
PGA
gain
resets
calibration
data.
Heater
Enabled
–
Determines
if
the
internal
sensor
heater
is
ON
or
OFF.
Heat(degC)
–
Heater
thermostat
setting.