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