TURCK sensors and peripheral devices DO NOT include the self-checking redundant circuitry required to permit their use in personnel safety applications. A device failure or malfunction can result in either an energized or a de-energized output condition.
Never use these products as sensing devices for personnel protection. Their use as safety devices may create unsafe conditions that could lead to serious bodily injury or death.
Selection Guide - Section M
How does Proximity Sensing compare to conventional methods?
TURCK proximity sensors are entirely solid state electronic controls that contain no moving parts to wear out as do mechanical switches. They require no physical contact for actuation, no cams or linkages, have no contacts to bounce or arc and are completely encapsulated, making them impervious to most liquids, chemicals and corrosive agents. In addition, TURCK has a line of sensors that can be used in hazardous explosive environments without any special enclosures.
If any of the following conditions exists, a Proximity Sensor should be used:
• The object being detected is too small, too lightweight, or too soft to operate a mechanical switch.
• Rapid response and high switching rates are required, as in counting or ejection control applications.
• Object has to be sensed through non-metallic barriers such as glass, plastic, or paper carton.
• Hostile environments demand improved sealing properties, preventing proper operation of mechanical switches.
• Long life and reliable service are required.
• Fast electronic control system requires bounce-free input signal.
Proximity Sensors are being used today in all industries:
Mining and Metallurgy
Automatic Assembly and Robotics
Conveyor Systems in Airports and Factories
Chemical Plants and Oil Refineries
Sheet Metal Fabrication
Automotive and Appliance Plants
Can Plants, Food Processing and Breweries
Shipyards, Docks, and Off-shore Drilling Rigs
PC-board Handling Machinery
Motion and Speed Control
Bottle Cap or Can Lid Detection
Punch Press Feed and Ejection Control
Broken or Damaged Tool Detection
Void or Jam Control
Liquid Level Control
Valve Position Indication
Missing Parts Control
Coin Counting and Sorting
Edge Guide Control
Robotics and Conveyors