Tono-Pen use

CALIBRATION

  • The Pen should be calibrated if the batteries have been changed or if the LCD reads “CAL” followed by
  • “- - - -”.
  • Remember, calibration involves depressing the Operator Button TWICE and getting ONE
  • line (- - - -). To take a reading requires depressing the Operator Button ONCE and getting
  • TWO lines (====).
  • 1. Point the transducer end straight down towards the floor.
  • 2. Press the Operator Button “distinctly, two times, within 1.5 seconds.”
  • 3. Initially “CAL” appears on the LCD, followed by “UP” (after about 15 - 30 seconds!)
  • 4. Invert the transducer end to point straight up toward the sky.
  • 5. A properly functioning Pen will display “”Good”.
  • If “bAd”, repeat the calibration again.
  • If this is all unsuccessful, options include
  • cleaning the tip (compressed air is recommended)
  • change the batteries. Use the little probe that came with the Pen to open the
  • battery compartment.
  • Tech Support
  • www.reichert.com
  • www.tonopen.us
  • 1-888-849-8955