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2.7.2

Mode 2

To set up the data logging function over a specific period, press the ‘Reset’
button until the setup screen is displayed.

Using the ‘Up’ and ‘Down’ buttons, set the data logging duration.

Press ‘Reset’ to return to the main screen. The unit will now be in ‘Mode
2’.

Summary of Contents for NFM3

Page 1: ...tvcalx co uk The Validation Centre TVC Limited Unit 15 Brinell Way Harfreys Industrial Estate Great Yarmouth Norfolk NR31 0LU UK sales tvcalx co uk NFM3 Nozzle Flow Meter 3 including Dual Nozzle Model Instruction Manual V1 2 ...

Page 2: ...3 Advanced only 9 2 7 1 Mode 1 9 2 7 2 Mode 2 10 2 8 Viewing logged files NFM3 Advanced only 12 2 8 1 Transferring logged files into MS Excel report 13 2 8 2 Surge file example 14 2 8 3 Removing logged files 14 2 9 Operational flow charts 15 2 9 1 Flow chart 1 NFM3 Standard 15 2 9 2 Flow chart 2 NFM3 Advanced Mode 1 16 2 9 3 Flow chart 3 NFM3 Advanced Mode 2 17 3 0 Dual Nozzle Model 18 4 0 Battery...

Page 3: ...3 16mm nozzle 4 19mm nozzle 5 22mm nozzle 6 Nozzle extension hose 7 NFM3 to TVC Welding Data Logger interface lead optional 8 NFM3 to PC USB interface lead NFM3 Advanced model only 3 1 1 Items supplied The NFM3 is supplied with the following 3 4 5 7 8 ...

Page 4: ...nd controls 1 Quick fit flow inlet 2 Display screen 3 Reset button reset peak gas flow value 4 Log button for use with TVC weld monitors 5 Up button 6 Down button 7 USB Welding Data Logger output connector 8 Charger input 9 On Off Switch ...

Page 5: ... wire cannot be fed through the NFM3 3 When using on equipment with High Frequency Arc Starting always ensure that the HF is turned off 2 1 Operational warnings 2 2 Powering up the unit Switch the On Off switch to the On position The LCD will illuminate and the software version number together with the model type will be displayed for a few seconds the screen will then revert to the standard displ...

Page 6: ...Mixes 50 to 70 Ar He 70 Argon Helium Mixes 0 to 100 Ar He 100 NFM3 Advanced Start Up screen NFM3 Advanced Main screen The NFM3 has a button lock feature to prevent accidental button presses which may change the gas selection To access the gas selection area press and hold the Up button for 3 seconds Once the buttons are unlocked and functioning use the Up and Down buttons to scroll between the ava...

Page 7: ... into the NFM3 nozzle ensuring a good fit Make sure the NFM3 is unit switched On and the correct gas type is selected Press the Gas Purge button on the arc welding set Once the flow has stabilised read the flow in Litres per minute on the NFM3 screen Once the gas stops flowing the NFM3 screen will revert to the small screen and display the peak flow this is indicated with a PK next to the flow rea...

Page 8: ...l units however should this need to be adjusted this can be done via a computer When the NFM3 is connected to your computer it will appear as a removable drive in the Windows My Computer page Double click the drive icon to open the drive and find the NFM3 files Double click on the file TVC Handheld Date Setter exe The following software window will open on your PC ...

Page 9: ... surge data on the NFM3 s internal memory Recorded data is downloaded from the NFM3 via USB connection for direct import into the included data viewing and reporting software There are two modes for data logging Mode 1 Quick screen print of results Mode 2 Logs gas over a set time taking a gas reading every 20 milliseconds 2 7 1 Mode 1 1 Switch on the NFM3 Advanced unit 2 By default the NFM3 is alr...

Page 10: ...ta logging function over a specific period press the Reset button until the setup screen is displayed Using the Up and Down buttons set the data logging duration Press Reset to return to the main screen The unit will now be in Mode 2 ...

Page 11: ... The NFM3 will only start logging when a gas flow has begun The progress bar at the top of the screen will turn black This bar will indicate how much time is remaining to log the gas filling with blue as it logs When the bar is fully blue the logging has finished When the logging is complete the progress bar will flash red then disappear ...

Page 12: ...en will display the average gas flow peak and gas consumption 2 8 Viewing logged files NFM3 Advanced only To view the recorded data on a laptop or PC connect the NFM3 using the USB cable provided The NFM3 will display the following screen whilst it is connected ...

Page 13: ... prints taken whilst in Mode 1 TXT contain logged gasses while in Mode 2 Each TXT file is labelled using the time the gas was logged Hour Minute Seconds e g 123846 2 8 1 Transferring logged files into MS Excel report TVC provide two MS Excel templates which can be used to open files and display the logged gas in a report Both templates operate in the same manner making them easier to use The Log F...

Page 14: ... can be adjusted from the second sheet Gas Costs found on the sheet tabs at the bottom of the MS Excel document Click the Open button The template will now open the file and display the gas data it has found To keep the information as a MS Excel document re save the document under a different name 2 8 3 Removing logged files Files on the NFM3 are like normal MS Windows files This means you can rem...

Page 15: ...using Up and Down buttons To reset the peak flow press the Reset button Insert welding torch nozzle in to the NFM3 nozzle and purge gas NFM3 will display the gas flow in LPM whilst gas is flowing The unit will display the peak flow achieved when the gas stops flowing and the gas consumed ...

Page 16: ...e Up Down buttons to set the log duration to 000s To exit the setup screen press the Reset button Insert welding torch nozzle in to the NFM3 nozzle and purge gas Gas flow will display in LPM whilst gas is flowing The unit will display the peak flow achieved when the gas stops flowing and the gas consumed To save the displayed data press the Log button Reset the displayed data by pressing the Reset...

Page 17: ...ess the Log button A green bar will appear at the top of the screen The NFM3 is now ready to record the gas surge Insert welding torch nozzle in to the NFM3 nozzle and purge gas Gas flow is displayed in LPM whilst gas is flowing The unit will display the peak flow achieved when the gas stops flowing and the gas consumed When the gas flows the green bar will change to blue and move across the scree...

Page 18: ... The NFM3 Dual Nozzle Model features an additional argon only nozzle The NFM3 Dual Nozzle Model has a gas lock feature To stop the gas being accidentally changed the Up Down buttons are disabled To enable the buttons press the Up button for 3 seconds A red arrow will appear on the display and enables the gas to be changed After a few seconds of no further button presses the arrow will disappear an...

Page 19: ...nect the battery charger to a suitable mains supply The battery will take between 1 5 to 2 hours to fully recharge The unit should be disconnected from the battery charger once fully charged The charge cycle and LED indications for the battery charger are listed below TVC recommend that the unit is returned to TVC or a TVC approved distributor for recalibration and service at least once every 12 m...

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