
GASMAX CX Operation & Maintenance Manual, Revision 1.0
Page 28
complete
the
SPAN
GAS
calibration.
If
the
SPAN
calibration
is
successful,
the
display
flashes
REMOVE
CAL
GAS
and
starts
the
CAL
PURGE
delay.
5.
Immediately
shut
off
the
regulator
and
remove
the
calibration
cup.
At
the
end
of
the
CAL
PURGE
delay,
the
GASMAX
EC
output
is
re
‐
enabled
and
the
unit
is
fully
operational.
The
flow
chart
shown
in
Figure
5
‐
2
illustrates
the
above
procedure.
UP,
CAL,
NEXT
&
EDIT
labels
indicate
keystrokes
using
the
magnetic
wand.
ZERO
or
SPAN
calibration
will
fail
if
the
readings
exceed
built
‐
in
limits
for
maximum
allowable
zero
or
minimum
allowable
span.
NOTE
:
A
CAL
MODE
INFO
SCREEN
IS
AVAILABLE
TO
VIEW
CERTAIN
CAL
MODE
PARAMETERS
DURING
CALIBRATION.
HOLD
THE
UP
KEY
FOR
5
SECONDS
DURING
CAL
MODE
TO
DISPLAY
THIS
SCREEN.
Figure 6-1: Calibration Flowchart