GASMAX CX Operation & Maintenance Manual, Revision 1.0
Page 38
Figure 10-4: Channel Settings Menu Tree (2)
Configure
Hydrogen Sulfide
E. Units ppmH2S
Zero 0.00
Span 100.0
Decimal Points 0
Channel On? Yes
Deadband (%) 0.00
Backup/Restore
→
Calibrate
Offset 1.73
Gain 1.00
Cal Zero 0.00
Cal Span 100.0
Set Unity Gain
→
Temp. Comp.
Temp Gain Offset
-40 1.00 +0.00
-30 1.00 +0.00
-20 1.00 +0.00
-10 1.00 +0.00
0 1.00 +0.00
+10 1.00 +0.00
+20 1.00 +0.00
+30 1.00 +0.00
+40 1.00 +0.00
+50 1.00 +0.00
Configure
Menu
Measurement
Name
–
User
‐
programmable
character
string
to
describe
the
channel.
Otherwise
called
“tag
name”.
E.
Units
–
User
‐
programmable
character
string
that
describes
the
engineering
units
value.
Zero
–
Channel
zero
value,
typically
“0”.
Span
–
Channel
full
scale
value.
Max
value
is
“9999”.
Decimal
Points
–
Determines
the
number
of
displayed
digits
to
the
right
of
the
decimal
point.
Channel
On?
–
Channel
ON
or
OFF
setting.
An
“OFF”
channel
will
have
no
effect
on
any
alarm
or
output
value.
Deadband
(%)
–
The
value,
around
zero,
for
which
the
screen
will
show
“0.0”.
Eliminates
display
of
small
values
around
zero
due
to
sensor
drift.
Temperature
Compensation
compensates
for
changes
in
sensor
output
(gain)
and
zero
value
(offset)
as
sensor
temperature
changes.
Individual
values
for
gain
and
offset
can
be
entered
for
eleven
points
ranging
from
minus
40C
to
+60C.
Gain
and
offset
values
are
linearly
interpolated
between
points
by
the
internal
microprocessor.
NOTE:
These
values
are
typically
set
by
the
sensor
manufacturer
and
should
not
be
changed.
Calibrate
Menu
Offset
–
Shows
the
computed
offset
value
based
on
the
latest
calibration.
Gain
–
Shows
the
computed
gain
value
based
on
the
latest
calibration.
Cal
Zero
–
The
value
for
the
zero
point
calibration
Cal
Span
–
The
value
for
span
calibration,
typically
50%
of
full
scale.
Set
Unity
Gain
–
Clears
gain
and
offset
to
“1.00”
and
“0.00”
respectively.
WARNING:
Set
Unity
Gain
resets
calibration
data.