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Fork sensors (slot sensors) are U and L shaped through-beam object detecting sensors that have the transmitter and receiver built into the opposing "fork" arms of the sensor housing.
Fork sensors offer advantages over standard through-beam sensors.- Rugged metal one-piece housing - always in alignment
- Food applications
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- Identical mechanical and optical axis
- Operational reliability and repeatability
- Transmitter / receiver built into the same housing
- Red, Infrared and Laser lighting
- Models available for transparent and liquid detection
- Ease of installation - one connection point
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- Rugged metal one-piece housing - always in alignment
- Glass optics
- High resolution
- Adjustable sensitivity
- Light / Dark operation (selectable)
- Short-circuit and reverse polarity protection
- 360º LED indication/switch status
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The Laser Classification Systems for the standards IEC (EN) 60825-1 defines the following safety classes:- Class 1 - This class is eye-safe under all operating conditions. (AutomationDirect fork sensors)
- Class 2 - These are visible lasers. This class is safe for accidental viewing under all operating conditions. However, it may not be safe for a person who deliberately stares into the laser beam for longer than 0.25 seconds, by overcoming their natural aversion response to the very bright light.
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