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Cleaning the TQ600
1.Cleaning the Keypad and Display
Use a soft damp cloth to remove dirt. Wipe dry.
2.Cleaning the Optical Sensor Clean the optical sensor as follows:
(1)Use a can of compressed air to blow off any loose dust or dirt particles on the sensor.
(2)Lightly press a small strip of adhesive tape to the sensor surface and slowly peel if off to remove dust & dirt particles.
(3)Use a soft,
Caution:
Do not use any cleaners on the sensor or it could be damaged. Cleaning products that contain alcohol or other strong chemicals may discolor or crack the terminal housing.
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