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Manually Calibrate G7 Using a Calibration Cap and Tube

  1. Attach the tube and calibration cap, ensuring the tube is securely attached to the fixed flow regulator and calibration cap.
    Important:

    Do not turn on the gas cylinder until G7 indicates you should do so.

  2. From the Home screen, press the OK button to open G7's Main menu.
  3. Using the up and down arrow buttons, scroll through the menu, then select Gas Options by pressing the OK button.
    Main menu: Gas options example
    The Gas info menu opens.
  4. Using the up and down arrow buttons, scroll through the menu and select Calibration by pressing the OK button.
    Gas options menu: Calibration option example
  5. Select Yes by pressing the up arrow button to continue. To exit the workflow, select No by pressing the down arrow button.
    Continue with calibration message example

    G7 performs an automatic audio and visual assessment to test vibration and lights.

    Alarm test result example
  6. Select Start zeroing by pressing the OK button.
    Important:

    Do not clear any checkboxes before zeroing. If you are not calibrating all sensors at the same time (i.e., you are only calibrating specific sensors or you are using multiple gas cylinders), you must wait for zeroing to complete before selecting which sensors to calibrate.

    Select sensors screen example

    G7 zeros the sensors before the calibration starts.

    Fresh air zero message example
  7. Select the sensors you want to calibrate. By default, G7 calibrates all sensors.
    Select gas mix screen example

    If you do not want to calibrate all the sensors, are calibrating in a specific order, or are using multiple gas cylinders, use the up and down arrow buttons to scroll through the sensors, then press the OK button to select or clear the checkbox for each sensor.

  8. Use the up and down arrow buttons to select Start span, then press the OK button to start the calibration.
  9. G7 starts to count down from 60. Attach the calibration cap to your device and apply the gas within this time window.
    Apply calibration gas now message example
  10. Turn off the gas when prompted on your G7 screen. Press the OK button to complete the calibration.
    Turn gas off message example
  11. Allow the residual gas to clear, and then disconnect the cap from your G7.

    G7 displays if the calibration has passed or failed, and when your next calibration is due.

    Calibration results message example

If you see a calibration fail message on your LCD screen, try the calibration again. If the error persists, please contact Technical Support.

Calibration failed message example