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Fork sensors (also called slot sensors) use through-beam photoelectric technology to detect objects passing through the slot. The rugged one-piece housing keeps the emitter and receiver in alignment and a convenient, single-cable connection is provided. A variety of light sources are available for specialty sensing applications, with sensing distances up to 220mm.
Fork Sensors
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 in certain applications.
Advantages
- Identical mechanical and optical axis
- Operational reliability and repeatability
- Transmitter / receiver built into the same housing
- Models available for transparent and liquid detection
- Ease of installation - one connection point
General Features
- Rugged metal one-piece housing - always in alignment
- U-Frame standard or harsh-duty, and L-frame configurations
- Glass optics
- Red, Infrared and Laser light emission models
- High resolution
- Adjustable sensitivity
- 10 to 30 VDC operating voltage
- Light / Dark operation (selectable)
- PNP and NPN logic versions
- Short-circuit and reverse polarity protection
- 360° LED indication / switch status
- M8 connector
- IEC IP67 rated
- Agency approvals: UL E328811- CE
For part listings and specifications, go to Shop Now
U-Frame
- Visible Red Light and Infrared Light models are available in certain fixed sensing ranges from 5 to 220 mm
- Laser Light models are available in certain fixed sensing ranges from 30mm to 120mm
- Transparent Object and Liquid Detection models offer sensing range of 80mm (PSTI series)
- U-Frame harsh duty sensors (stainless steel) offer sensing distances of 50mm or 80mm
Starting at
$128.00
(PSUR-0P-1F)
L-Frame
- Visible Red Light and Infrared Light models are available in certain fixed sensing ranges from 60 to 160mm
- More open configuration for applications requiring object position flexibility
Starting at
$146.00
(PSWR-0N-4F)
* 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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