To verify that all glass hard disks are removed from the holding rack after the disks are rinsed.
After disks of clear glass are rinsed in a rinsing machine, the U-GAGE T18 ultrasonic sensor pair in opposed mode reliably senses whether any disks remain in the rack.
Photoelectric clear object detection sensors are not recommended for this application because of the spray rinse.
U-GAGE T18U Ultrasonic Sensors
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