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Matheson 8068 Instrument User Manual

Gas leak detector
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Model 8068
Gas Leak Detector
Instrument User Manual
INT-0368 rev A

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Summary of Contents for Matheson 8068

  • Page 1 Model 8068 Gas Leak Detector Instrument User Manual INT-0368 rev A...

  • Page 3: Table Of Contents

    SAFETY QUALITY ASSURANCE RESPONSIBILITY OF USE DISPOSAL CALIBRATION FACILITY LEGAL NOTICE INSTRUMENT DESCRIPTION PACKING LIST HOW 8068 WORKS GETTING STARTED INSTRUMENT MAIN SCREEN USING THE 8068 HOW TO CONDUCT A CALIBRATION CHECK INSTRUMENT MAIN SCREEN EXPLAINED SENSITIVITY READING DISPLAY MEASUREMENT UNITS...

  • Page 4: Statements

    The 8068 can detect a large range of gases but some gases are more difficult to detect. It is the responsibility of the user to ensure the 8068 instrument has the sensitivity to detect the required gas before reaching potentially dangerous levels.

  • Page 5: Instrument Description

    This is a measure of the percentage of the target gas in the environment. IMPORTANT NOTES: • The 8068 is NOT intrinsically safe, so it should not be using in a potentially explosive environment. Intrinsically safe instruments are available. Please contact MATHESON for more information.

  • Page 6: Packing List

    Please remove all packing material and then check the content of the carry case against the list below before use. Should the instrument or any accessory appear damaged or missing then contact the instrument supplier for advice before use. Model 8068: • 8068 Instrument • Box Spanner • USB Cable • USB Mains Adaptor •...

  • Page 7: How 8068 Works

    6 times faster. The 8068 contains a heated thermistor bead that transmits heat into the sensing chamber. On the other side of the sensing chamber there is a block of material that remains at a constant temperature helping to stabilize the signal.

  • Page 8: Getting Started

    Getting Started Charging Your 8068 Instrument To charge your 8068 instrument, use a USB A to Type C Charger Cable and connect it to the back of the 8068 device. The 8068 instrument will indicate it's charging by showing the following symbol at the top right of the home screen.

  • Page 9: Instrument Main Screen

    Instrument Main Screen Once the instrument has run through its 'Start up' routine it will display its normal 'Instrument Main Screen' used when locating gas leaks. Before using the instrument, the various settings should be set and adjusted to suit the application.

  • Page 10: Using The 8068

    Zero routine it will enter the main screen. Gas leaks tend to occur at pneumatic joints or welded seams, hold the 8068 at a 45° angle to the object being tested and drag the probe along the seam or joint at a rate of approximately 25mm per second.

  • Page 11: Instrument Main Screen Explained

    Selected Sensitivity The 8068 has three (3) sensitivity levels, high, medium, and low. You can adjust the sensitivity by using the ‘UP’ and ‘DOWN’ arrow while on the instrument main screen. When the instru- ment is set to low, it will increase in steps of 1000+. When set to medium, it will increase in steps of 100.

  • Page 12: Main Menu

    Main Menu To access the main menu, click the ‘MENU/SELECT’ button while on the main screen. Current Calibration: The current calibration button provides you with information on when the instrument was last calibrated, what gas was used, what the concentration was and what the mV response was.
  • Page 13 Main Menu (Continued) The Target Gas: This is where you can choose the desired gas you are looking to detect. This will take you to a page with a drop down for the first letter of the target gas and the name of the target gas.

  • Page 14: Calibration Management

    Calibration Management To access the Calibration Management on your 8068 instrument, click the ‘MENU/SELECT’ button while on the main screen to access the Main menu. Once you are in the Main menu, use the ‘DOWN’ button and click on ‘Calibration Management’ by pressing the ‘MENU/SELECT’...
  • Page 15 Calibration Management (Continued) Once the pump calibration has finished, it will ask you to connect span gas. Connect the in- strument to your span gas and press ok. You have the option to abort at this time if needed. Once the instrument has stabilized, the calibration will finish. To confirm calibration, press ok, again, you can abort at this stage if required.

  • Page 16: System Settings

    Systems Settings To access system settings, press the ‘MENU/SELECT’ button while on the instrument main screen. The use the ‘DOWN’ arrow until you reach ‘System Settings’. Within the system settings, you can view/adjust the following: Peak Hold: When the peak hold is turned on the highest peak detected will be held on the main screen.
  • Page 17 Systems Settings (Continued) Data Format (Decimals or Exponents): This is where you choose the instruments display reading format, either decimals or exponents. Readings Display: This is selected in the System Settings. It can be one of three possibilities. Standard readings display will not register any readings below zero.

  • Page 18: Probe Options

    Probe Options In some applications, the probe cover might restrict access to the area that requires testing. You can remove the probe cover by twisting it off from the instrument body (anti-clockwise). Once the probe cover is removed, take care when using the instrument as the instrument probe is delicate.
  • Page 19 Probe Options (Continued) To refit the short or the long probe follow the steps above but in reverse order. When using the box spanner to tighten the probe nut, ensure the nut is firmly tightened however do not use additional tools as the tread may become damaged. Should a probe become blocked, use dry, clean compressed air to blow out the blockage from the instrument end of the probe.

  • Page 20: Detecting Leaks

    Detecting Leaks Hold the 8068 in one hand and draw the instrument probe along the area that requires testing at approximately 25mm per second. When a leak is detected, retrace the route at a slower rate until the leak is located. Once the leak is located, hold the instrument over the leak until the measurement stabilizes.

  • Page 21: Instrument Specifications

    Instrument Specifications Detector Micro thermal conductivity detector (MTCD) Battery Type Rechargeable Li-ion Battery Battery Life 20 hours Audible Alarm ≥ 90 dBa at 10 cm Factory Calibration At 50 % relative humidity (room temperature): 5000 ppm Helium (± 5%) Leak: 0.0005 cc/sec (± 5%) Data Logging 10 days continuous Sensitivity...

  • Page 22: Instrument Warranty And Service

    Standard Warranty is one year from date of purchase. Service At MATHESON we recommend that all of our gas detection instruments be returned for ser- vice and factory calibration once every 12 months. Contact MATHESON or your local distributor for service options in your area.
  • Page 24 All names, products, and services mentioned herein are the trademarks or registered trademarks of their respective organiza-tions and are the sole property of their respective owners. MATHESON and the MATHESON logo are registered trademarks of Matheson Tri-Gas, Inc.

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