9
2.3.3
(i)
Data Logging: Nozzle Measurements
1
Switch unit on.
2
Select ‘Log 1’ mode. This provides a quick, ‘screen print’ of results.
3
Connect the GFM2 to the welding torch using the correct size nozzle
adaptor.
4
Start the flow of gas and allow to stabilise.
5
Press the ‘Log’ button while gas is flowing to record the gas flow data.
6
Once the gas flow has been logged, the screen will display the gas
consumed and peak gas flow.
Connect the GFM2 into the gas line observing the correct gas flow
direction.
DO NOT OVER-TIGHTEN CONNECTIONS!
Use PTFE tape to
seal if required.
2.3.3
(ii)
Data Logging: Inline
NB: DO NOT EXCEED THE RATED MAXIMUM PRESSURE OF 8 BAR!
For long periods of gas flow monitoring, the mains power supply can be
connected to the GFM2. Use either ‘Log 2’ or ‘Log 3’ depending on the
type of logging required.
Log 2
The GFM2 will start logging as soon as it sees the gas flow
and will stop logging once the pre-set time has been reached.
Log 3
The GFM2 will start logging as soon as the ‘Log’ button is
pressed and continue to log at the set intervals until the ‘Log’
button is pressed again.
2.4
Data Viewing and Reporting
To view the recorded data to a PC, connect the GFM2 using the USB
cable provided and view using the software included with the unit.