
GX-3R Pro Operator’s Manual
Chapter 5: User Mode and Calibration
•
82
Option A from Flow Chart
Option B from Flow Chart
•
Calibration passed
•
Multiple cylinders assigned
•
Calibration passed
•
One cylinder assigned
•
Auto Start After Successful Cal set to ON (factory setting)
1.
The instrument indicates that all channels passed the
calibration.
2.
The instrument shows the current gas readings.
3.
If DISP MAX SPAN is set to ON (default is OFF, see page
196), the response reading’s maximum adjustment displays.
A maximum span of 100% LEL on the combustible channel
indicates that the reading could have been adjusted up to
100% LEL. If the maximum span value is close to the
calibration gas value, the sensor should be replaced soon.
The maximum adjustment is either twice the calibration
value or full scale, whichever is lower. The maximum
adjustment for the oxygen channel is 25.0% volume.
4.
If the combustible gas sensor is nearing the end of its useful
life, the reading conversions that can be made in Display
Mode’s HC GAS LIST item become limited. Press and
release POWER MODE. See page 48 for the limited
conversion list. Replace the combustible sensor as soon as
possible.
5.
Close the regulator.
6.
The instrument continues to the AUTO CAL CYL X screen.
7.
Unscrew the regulator from the first cylinder and screw it
into the next cylinder.
8.
Press and release POWER MODE to start the next cylinder’s
calibration.
9.
Repeat Step 9 through Step 12.
10.
After the last cylinder is calibrated, the instrument continues
to the START MEASURE item in the AUTO CAL menu.
11.
Remove the calibration cup.
12.
Press and release POWER MODE to enter Measuring Mode.
1.
The instrument indicates that all channels passed the
calibration.
2.
The instrument shows the current gas readings.
3.
If DISP MAX SPAN is set to ON (default is OFF, see page
196), the response reading’s maximum adjustment displays.
A maximum span of 100% LEL on the combustible channel
indicates that the reading could have been adjusted up to
100% LEL. If the maximum span value is close to the
calibration gas value, the sensor should be replaced soon.
The maximum adjustment is either twice the calibration
value or full scale, whichever is lower. The maximum
adjustment for the oxygen channel is 25.0% volume.
4.
If the combustible gas sensor is nearing the end of its useful
life, the reading conversions that can be made in Display
Mode’s HC GAS LIST item become limited. Press and
release POWER MODE. See page 48 for the limited
conversion list. Replace the combustible sensor as soon as
possible.
5.
Close the regulator.
6.
Unscrew the regulator.
7.
Remove the calibration cup.
8.
The instrument automatically begins its warmup sequence
and enters Measuring Mode.
7:49
PASS
AUTO CAL
MAINTE
7:49
11.9
O2 %
47 47 23.3
CH4 %LEL CO ppm H2S ppm
AUTO CAL
MAINTE
7:49
25.0
O2 %
100 70 48.5
CH4 %LEL CO ppm H2S ppm
MAX SPAN
7:49
LIMITED
HC GAS LIST
7:49
PASS
AUTO CAL
MAINTE
7:49
11.9
O2 %
47 47 23.3
CH4 %LEL CO ppm H2S ppm
AUTO CAL
MAINTE
7:49
25.0
O2 %
100 70 48.5
CH4 %LEL CO ppm H2S ppm
MAX SPAN
7:49
LIMITED
HC GAS LIST