Sensors feature new certifications and modes
Jeff Allison, product manager of photoelectric sensing at Pepperl and Fuchs, remarks that the ML7 units now feature a clear-object sensing mode. This mode detects slight fluctuations in reflected light. "The sensing hysteresis is more sensitive to clear objects and plastics than a regular retroreflective would be," Allison explains. Operators adjust the devices' potentiometer to control the units' contrast levels.The sensors also operate in diffuse mode with background suppression, which inherently has low color sensitivity, Allison explains. This mode reduces the sensing-range difference between colors to less than 10%.
Technology provides secure authentication
The product's software converts this information into a digital signature to which only 1 in 1027 products have identical configurations. The technology can create digital signatures in forms such as 2D barcodes or radio-frequency identification. These signatures store data such as packaging-material characteristics, lot number, and date codes.
Portable TOC sensor provides flexibility
The sensor also can be used on line, he adds. The unit provides 4 h of continuous, on-line use without requiring AC power. The instrument includes brackets that allow easy mounting and dismounting.
The CheckPoint device provides test results in 15 s. Users can easily program the unit to display results in various formats at intervals as great as 8 h.
Yourkin adds that the sensor's pump head is its only moving part. The machine's key components can be removed quickly for easy maintenance.
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