GX-6000 Operator’s Manual
Chapter 4: Calibration Mode • 75
6 . To check or update the gas concentrations, use the
▲
AIR and SHIFT
▼
(PANIC)
buttons to put the cursor next to
CONCENTRATION
and press and release the
POWER/ENTER button to display the Calibration Gas Values Screen.
The gas concentrations displayed in the Calibration Gas Values Screen must match
the gas concentrations listed on the 5-gas cylinder or the 4-gas calibration cylinder
and the PID cylinder.
If
all
concentrations match, go to Step 12.
If
one or more
concentrations
do not
match, continue with Step 7.
If you do not want to continue with the concentration adjustment, press and release
the DISP/LOCK button to return to the Auto Cal Menu.
NOTE:
The RKI 4-gas cylinder typically contains 12% O
2
by volume. When using the
auto calibration method, be sure to set the “O2” auto calibration value to agree
with the concentration listed on the cylinder’s label, not zero.
7 . Use the
▲
AIR and SHIFT
▼
(PANIC) buttons to place the cursor next to the channel
whose gas value you want to change.
8 . Press and release the POWER/ENTER button. The auto cal value will begin to flash.
9 . Use the
▲
AIR and SHIFT
▼
(PANIC) buttons to adjust the calibration gas setting to
the desired value.
NOTE:
The calibration gas value cannot be set lower than the low alarm setting. If the
calibration gas value listed on the calibration cylinder is lower than the current
low alarm setting, enter Maintenance Mode and change the low alarm setting.
See “Updating the Alarm Point Settings (ALARM POINTS)” on page 145 for
instructions. If you need to change the alarm point setting only to perform a
calibration, make sure that you change the alarm point setting back to its
original value once the calibration has been performed.
10 . Press and release the POWER/ENTER button to save the change. The calibration gas
value stops flashing.
11 . Repeat Step 7 through Step 10 for any other channels that need to be changed.
AUTO
CONCENTRATION
CH4 50 %LEL
O2 12.0 %
H2S 25.0 ppm
CO 50 ppm
VOC 100 ppm
ESCAPE