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Summary of Contents for TVC HPM-01
- Page 1 Hand-held Purge Monitor HPM-01 / HPM-02 Instruction Manual V1.5 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
Contents Description Items supplied Controls and connectors Operational instructions Operational warnings Turning the unit on Buttons Sampling 2.4.1 Inline magnetic filter connection 2.4.2 Gas sampling 2.4.3 Dew Point / Moisture Option Data Logging 2.5.1 Log 1 2.5.2 Log 2 2.5.3 Log 3 Limits Data viewing and reporting Viewing logged files... -
Page 3: Description
The Handheld Purge Monitor (HPM) is available in two editions: the HPM- 01 and HPM-02. Measurement range and resolution separates the two models as follows: HPM-01 HPM-02 � General purpose / wide range � High precision / wide range � Measuring range of 0 – 21% �... -
Page 4: Controls And Connectors
Sampling tube USB connection cable Battery charger Rugged carry case Magnetic filter Controls and connectors Quick-fit flow inlet (magnetic filter and sampling tube connection) Exhaust outlet Sampling tube ‘Reset’ button ‘Log’ button ‘Up’ button ‘Down’ button... -
Page 5: Operational Instructions
USB connector On / Off Switch Charger input Operational instructions Operational warnings The following MUST be read before attempting to use the HPM: 1 For use on Inert Arc Welding Shielding and Back Purging gases ONLY. For use with Inert Welding gases. NEVER attempt to monitor Fuel gases or Oxygen >... -
Page 6: Buttons
Buttons Use the ‘Down’ button to start sampling of the purge gas. The screen will - - . - - change from ‘ ’ to the O2 concentration in either percentage (>= 1% O2) and PPM (< 1% O2). Pressing the ‘Down’ button again will stop the sampling and the HPM returns to standby mode. -
Page 7: Sampling
Sampling 2.4.1 Inline magnetic filter connection If the HPM unit is to be used on pipework where a lot of grinding takes place, e.g. grinding out bullets, it is advised that the inline magnetic filter is fitted to stop any grinding dust getting on to the sensor. The inline magnetic filter connects between the HPM and the sampling tube hose. -
Page 8: Gas Sampling
When purchased, an additional sensor for the inline measurement of the Purging Gas Dew Point and moisture volume is fitted in the HPM sensor block, this can be fitted to either the HPM-01 or HPM-02 base units. On initial switch on the fitment of the Dew Point/Moisture option is identified by the ‘-H’... - Page 9 The Dew Point is on the right-hand side and will display from -8°C to -60°C in 1°C steps. The moisture value is on the left-hand side and will read from 3000ppm down to 0ppm, from 3000 to 100ppm it will read in 100ppm steps, from 100 to 0 it will read in 25ppm steps.
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Page 10: Data Logging
Data Logging Measured Oxygen Values can be logged to the HPM units’ internal memory using the logging facility. Recorded data can be downloaded from the unit using the USB connection. Data can be directly imported into the data viewing and reporting software included with the HPM. -
Page 11: Log
For long periods of purge monitoring, the HPM battery charger can be connected. Depending on the type of logging required, use ‘Log 2’ or ‘Log 3’. 2.5.2 Log 2 The HPM will start logging when the ‘Log’ button is pressed and will stop logging once the pre-set time has been reached, or ‘Reset’... -
Page 12: Data Viewing And Reporting
Use the ‘Up’ and Down’ buttons to set the limit values; press and hold the selected button to increase the speed of change. Press the ‘Log’ button to toggle between the ‘High’ limit and ‘Low’ limit. Once the Limits have been set to the required levels press the ‘Reset’ button to Exit the Setup screen and save the limit levels. -
Page 13: Viewing Logged Files
‘.TXT’ file is labelled using the time the log was started – hours (hh), minutes (mm) and seconds (ss). Transferring logged files TVC provide MS-Excel templates which are used to open the HPM files and display the logged gas in an MS-Excel report. 2.10 Removing logged files Files on the HPM are like any normal PC files;... -
Page 14: Changing Measured Units Or Date And Time
Windows ‘My Computer’ page. Double-click the drive icon to open the drive and find the HPM files. Double-click on the file ‘TVC-Handheld-Date-Setter.exe’. The following software window will open on your PC. Follow the instructions and ensure that the correct measurement units’... -
Page 15: Battery Charging
After the purging gas has been run for five minutes, while the gas is still running, press and hold the ‘Up’ button until the screen shows ‘Zero Complete’. Release the ‘Up’ button. The field calibration is now complete, and the purge gas can be removed. NB: Running a field calibration on a gas mix containing O2 and/or CO2 will cause the measured gases to be inaccurate! If this occurs, the field calibration should be run again on the appropriate gas. -
Page 16: Additional Information
Mode Battery not connected. Flashing Battery charging. Battery charged. A problem has occurred with the battery of charger; consult TVC or your agent for assistance. Additional information Specification O2 measurement range: 0.01% - 20.9% (HPM-01) 0 ppm – 1200ppm / 0.0005% - 20.9% (HPM-02) As with any measurement equipment, the analysis pod requires time to achieve an accurate measurement. -
Page 17: Calibration
Calibration All HPM meters are supplied with valid and traceable 12-month calibration certification. TVC recommend that the HPM unit is returned to TVC, or a TVC- approved agent, for recalibration and service annually. Disposal To meet our obligations under the WEEE directive, we have a collection point for the recycling of this product once it has reached the end of its normal working life.
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