150 • Calibrating the GX-2012
GX-2012 Operator’s Manual
7. Fill the gas collection bag by screwing the fixed flow regulator onto the calibration
cylinder or by screwing the dispensing valve onto the calibration cylinder and turning
the knob counterclockwise.
NOTE:
If the regulator has no on/off knob, then gas will begin to flow at 0.5 LPM as
soon as the regulator is connected to the cylinder.
8. Allow the gas to dispense until the gas collection bag is a little over half full.
9. If a fixed flow regulator without a knob is used, disconnect it from the cylinder and
immediately clamp down the hose clamp to prevent the release of gas from the gas
collection bag.
If a fixed flow regulator with a knob or a dispensing valve is used, turn the knob
clockwise to stop the gas flow, clamp down the hose clamp and remove the regulator
or dispensing valve from the cylinder.
10. Disconnect the tubing from the regulator or dispensing valve.
Calibrating the GX-2012
From Measuring Mode, enter Calibration Mode by pressing and holding the (SHIFT)
button, then pressing the DISPLAY(ADJ) button and releasing both. If the unit prompts
you for the password, enter it by using the AIR
and (SHIFT)
buttons to select each
password number and then pressing and releasing POWER ENTER to confirm it and
move on to the next number. To go back a number, press and release the RESET
SILENCE button. The factory set password is the same as the factory set password for
Maintenance Mode: 2102. You can change the password by entering the
PASSWORD
menu item in Maintenance Mode. See “Turning the Password Function On or Off” on
page 128. If you enter an incorrect password, an error screen will display.
To return to normal operation, press and release the RESET SILENCE button. You may
then try to reenter Calibration Mode.
MAINTENANCE will appear along the top of the screen once you have entered
Calibration Mode. The first item in the calibration menu, AIR CAL, displays.
Err
PASSWORD
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