Gas Detection (Australia) Pty Ltd Page 29 of 44
M-GDA-3000 Rev 1
When [YES] is shown by touch
ing “↑” or “↓” switch, touching
FUNC switch makes the detector’s mode change to Span
Calibration Mode.
This mode enables the user to set standard gas value. The value
can be adjusted by touching “↑” or “↓” switch. And then, the
value will be set by touc
hing “FUNC” switch. (1-Full scale)
For doing span calibration, insert standard gas for about 90
seconds at the rate of 1000mL/min into sensors with calibration
tool. Once it has stabilized, span calibration can be performed
automatically by touching FUNC switch.
During performing span calibration, the progress will be
displayed.
If span calibration is completed to be successful, a message
“SPAN PROCESSING SUCCESS” will be displayed for two seconds
and then the mode will transit to CALIBRATION DATA mode.
If it fails, “SPAN PROCESSING FAIL” will be displayed for two
seconds and then the mode will change to CALIBRATION DATA
mode.
This mode is to display measured value after completing
calibration. This mode also enables the user to check if the
detector was calibrated properly.
After the detector enters submenu, it displays “WAIT” for two
seconds and then indicates current measurement state.
If RESET or FUNC switch is touched, the detector will return
back to CALIBRATION MODE.
