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Related Manuals for TVC NFM3
Summary of Contents for TVC NFM3
- Page 1 NFM3 Nozzle Flow Meter 3 including Dual Nozzle Model Instruction Manual V1.2 The Validation Centre (TVC) Limited Unit 15, Brinell Way, Harfreys Industrial Estate, Great Yarmouth, Norfolk, NR31 0LU, UK. +44 (0)1493 443800 sales@tvcalx.co.uk www.tvcalx.co.uk...
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Page 2: Table Of Contents
Surge file example 2.8.3 Removing logged files Operational flow charts 2.9.1 Flow chart 1: NFM3 Standard 2.9.2 Flow chart 2: NFM3 Advanced ‘Mode 1’ 2.9.3 Flow chart 3: NFM3 Advanced ‘Mode 2’ Dual Nozzle Model Battery charging Additional information Specification... -
Page 3: Description
The NFM3 is supplied with the following: 3, 4 & 5 NFM3 Battery charger 16mm nozzle 19mm nozzle 22mm nozzle Nozzle extension hose NFM3 to TVC Welding Data Logger interface lead (optional) NFM3 to PC USB interface lead (NFM3 Advanced model only) -
Page 4: Connectors And Controls
Connectors and controls Quick-fit flow inlet Display screen ‘Reset’ button (reset peak gas flow value) ‘Log’ button (for use with TVC weld monitors) ‘Up’ button ‘Down’ button USB / Welding Data Logger output connector Charger input On / Off Switch... -
Page 5: Operational Instructions
Operational warnings The following MUST be read before attempting to use the NFM3: 1 The NFM3 is designed for use on Inert Arc Welding Shielding and Back Purging gases only. Always ensure that the wire feed drive wheels are slackened off so that welding wire cannot be fed through the NFM3. -
Page 6: Gas Selection
NFM3 Advanced: NFM3 Advanced: Start Up screen Main screen Gas selection The NFM3 has been programmed with nine gas mix selections, these are: • Argon (Ar) • Carbon Dioxide (CO2) • Argon/CO2 Mixes (Ar-CO2) • Nitrogen (N2) • Argon/Helium Mixes 0 to 10% (Ar-He 10%) •... -
Page 7: Flow Measurement
If required, use the extension hose. Insert the arc welding torch nozzle 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. -
Page 8: Selecting Measurement Units (Nfm3 Advanced Only)
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. -
Page 9: Peak Reset
The optional data logging facility records flow results and 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’... - Page 10 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’.
- Page 11 Press the ‘Log’ button to set the NFM3 ready to record. A green bar will appear at the top of the screen to show the unit is ready to log. The NFM3 will only start logging when a gas flow has begun. The progress bar at the top of the screen will turn black.
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Page 12: Viewing Logged Files (Nfm3 Advanced Only)
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: Transferring Logged Files Into Ms-Excel Report
When the NFM3 is connected to a laptop or PC, it will appear as a removable drive in the MS-Windows ‘My Computer’ page. Open the drive by double-clicking on it and find the NFM3 files. All logged gasses are stored under folders labelled by the date (Day, Month, Year, e.g. -
Page 14: Surge File Example
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 remove or delete them as you normally would. -
Page 15: Operational Flow Charts
Select gas by using 'Up' and 'Down' Power On buttons. 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: Flow Chart 2: Nfm3 Advanced 'Mode 1
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. -
Page 17: Flow Chart 3: Nfm3 Advanced 'Mode 2
Select gas by using 'Up'/'Down' buttons. Press 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. -
Page 18: Dual Nozzle Model
Dual Nozzle Model 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. -
Page 19: Additional Information
NB: Only use the battery charger supplied by TVC for charging the NFM3! Insert the battery charger plug into the charging input socket. Connect 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.
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