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Sensors / Encoders > Photoelectric Sensors > Fork Sensors

Fork Sensors

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.

General Purpose Photoelectric Sensors

Clear Object Detection Sensors

Distance Measuring Sensors

Discrete Distance Sensors

Dark & Shiny Object Detection

Reflectors and Lens Adapters

Mounting Brackets and Rods

Sensor Tester and Spare Parts

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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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