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the main menu. If the calibration is unsuccessful, this menu will show
ADJUST ERR. If this occurs the loop needs to be checked to determine
if there is a leak or standard gas has run out (the pressure indicator of gas
bottle shows 0). The Calibration menu will remain if the calibration is
unsuccessful.
If you require to exit this menu during the calibration press the MENU button
or highlight CANCEL and press the ENTER button.
Note: Remember to close the valve of the standard gas to prevent wastage.