Canon TX-20 Full Auto Tonometer User Manual
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4BasicOperation
8
Press the LIMITER button to set the position where the nozzle stops.
CAUTION
Be sure to set the position where the nozzle stops for each patient
Look from the side of the patient when setting the stop position to see that the patient’s forehead
and chin are firmly against the forehead rest and chin rest. If the stop position is not set correctly,
the nozzle may contact the patient’s eye and result in injury.
1) Check that the LIMITER OFF mark is displayed.
LIMITER
OFF mark
2) Slowly move the operation lever so the nozzle approaches the eye being examined.
Look at the patient from the side to make sure that the patient’s forehead and chin are in secure
contact with the forehead rest and chin rest.
3) Set the distance between the nozzle and the patient’s eye to approximately 8 to 10 mm, and
press the LIMITER button.
The LIMITER OFF mark disappears and the nozzle stop position mark is displayed.
Nozzle stop
position mark
StopdoingmeasurementsiftheLIMITEROFFmarkdoesnotdisappeareveniftheLIMITER
buttonispressed
Stop using the instrument, and contact your sales representative or local Canon dealer.
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