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Classic

US Eye General Purpose Photoelectric Sensor

U.S. EYE photoelectric sensors at "lower than limit switch" prices; it's the answer to the demand for economical, high-performance AC sensors. These self-contained, easy-to-use sensors are available in a wide variety of sensing models (thru-beam, retroreflective, proximity and fiber optic) to fit virtually any application. They are available with a unique contrast Indicator for setting up difficult sensing tasks and without the contrast Indicator for simple tasks at an even lower cost. We have a wide variety and are available as ac/dc sensors with timers, relay or triac output.

UNIVERSAL INPUT VOLTAGE
24-130 volt AC/DC input range. Input surge suppressed and fault protected.

OUTPUTS & STATUS INDICATORS
5 amp relay or 1 amp triac outputs.  Beam status and output indicators work in conjunction with timers.

CONTRAST INDICATOR MODELS
The Contrast Indicator displays a scaled reading of the level of light received by the sensor’s photo detector. The more light received, the higher the reading. The less light received, the lower the reading. Contrast is a comparison of the lightest state reading vs. the darkest state reading. The sensing task of any photoelectric sensor is to resolve the difference between these two light levels and switch the output accordingly. The U.S. EYE® switches its output when the light level passes the midscale reading of “5.” Refer to section 1 for details.

AJUSTABLE TIMERS
ON/OFF – output relay switches for duration of input.
Type T1, delay timer – offers two options using light/dark switch:
  a.) “ON” delay for product jam or backup detection.
  b.) “OFF” delay for product void detection.
Type T2, “one-shot” timer – may be used for short, momentary output pulse or in the “triggerable” mode for “stop motion” detection.
(See Timing Sequence Data Charts.)

FIBEROPTIC MODELS
Flexible fiberoptic light guides are available in sizes small enough to fit into your toughest job sensing sites, with models designed for inaccessible places, detection of extremely small parts, high temperature applications, corrosive environments, or high vibration locations, as well as straight light guides for Beam Break and bifurcated light guides for proximity sensing.

Details

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients

SUPPLY VOLTAGE:
24 to 130 VDC or VAC
Polarity Protected

Power Consumption:
45 milliamps (exclusive of load)

OUTPUT:
SPDT Relay Models: 5 amps @ 120 VAC
Normally de-energized before input occurs
Isolated Solid State Triac Models: 1 amp at 50C

RESPONSE TIME:
7 milliseconds light or dark

LED LIGHT SOURCE:
Options: Infrared= 880nm, Red= 660nm

AMBIENT TEMPERATURE:
-10ºC to 50ºC (-14ºF to 122ºF).

RUGGED CONSTRUCTION:
Chemical resistant housing, Dirt and Moisture Sealed

DIMENSIONS:
Width: 3.50 in (88.9mm), Height: 2.75 in (69.85mm), Depth: 1 in (25.4mm)

MAXIMUM SENSING RANGE:
Retroreflective: up to 15 ft.
Proximity: up to 3 ft.
Opposed: up to 75 ft.
Fiberoptic Proximity: up to 2.5 in.
w/o lens / 4 in. w/lens
Fiberoptic Opposed Mode: up to 2 ft.
w/o lens / 12 ft w/lens.

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients

Drawing

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients

Sensing Range Guidelines

With
Contrast
Indicator
Without
Contrast
Indicator
Light Source Max Range Speed of Response Output Information
Beam Break Mode Retroreflective (Models Include 78P Reflector)
UCR-A UR-A Infrared 15ft. 7ms. On/Off Relay
TUCR-A TUR-A Infrared 15ft. 8ms. On/Off Triac
UCR-AT1 UR-AT1 Infrared 15ft. 7ms. On or Off Delay
UCR-AT2 UR-AT2 Infrared 15ft. 7ms. One-Shot Motion
Beam Break Opposed Mode (Models Include Both Light Source and Receiver)
UCT-A UT-A Infrared 75ft. 7ms. On/Off Relay
UCT-AT1 UT-AT1 Infrared 75ft. 7ms. On or Off Delay
UCT-AT2 UT-AT2 Infrared 75ft. 7ms. One-Shot Motion
Receiver Replacements Light Source Replacements  
UCT-AR UT-AR UT order replacement separately
UCT-AT1R UT-AT1R UT order replacement separately
UCT-AT2R UT-AT2R UT order replacement separately
Beam Make Mode Proximity Diffused Beam
UCD-A UD-A Infrared 3ft. 7ms. On/Off Relay
TUCD-A TUD-A Infrared 3ft. 8ms. One-Shot Motion
UCD-AT1 UD-AT1 Infrared 3ft. 7ms. On or Off Delay
UCD-AT2 UD-AT2 Infrared 3ft. 7ms. On-Shot Motion
Fiberoptic Mode
With
Contrast
Indicator
Without
Contrast
Indicator
Light Source Opposed Range* Proximity Range* Speed of Response Output Information
With Lens W/O Lens With Lens W/O Lens
UCF-A UF-A Infrared 12ft. 2ft. 4in. 2.5in. 7ms. On/Off Relay
TUCF-A TUF-A Infrared 12ft. 2ft. 4in. 2.5in. 8ms. On/Off Triac
UCF-AT1 UF-AT1 Infrared 12ft. 2ft. 4in. 2.5in. 7ms. On or Off Delay
UCF-AT2 UF-AT2 Infrared 12ft. 2ft. 4in. 2.5in. 7ms. One-Shot Motion
UCFR-A UFR-A Red 6ft. 8in. 4in. 1in. 7ms. On/Off Relay
UCFR-AT1 UFR-AT1 Red 6ft. 8in. 4in. 1in. 7ms. On or Off Delay
UCFR-AT2 UFR-AT2 Red 6ft. 8in. 4in. 1in. 7ms. One-Shot Motion
NOTES:
FIBER OPTIC range tests utilized .125 in. diameter fiber bundles and UAC-15 lenses as indicated.
PROXIMITY tests utilized a 90% Reflective target. RETROREFLECTIVE tests utilized a 78P reflector.

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients

LIGHT SOURCE SELECTION

Infrared Light Source
Invisible light – recommended in opaque object sensing applications. Infrared LED light source provides long-range sensing in either Beam Make or Beam Break modes. Infrared light maximizes the sensor’s ability to penetrate contamination found in harsh environments.

 

Red (Visible) Light Source
Visible red LED light source recommended for sensing transparent/translucent objects. Outperforms infrared light in many moderate to low contrast applications. Also recommended for use with plastic fiberoptic light guides.

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients

Product Literature

Catalog Pages
Instructions

View FileEN
View FileEN

 
Details

Features and Options:

  • Easy installation – includes all accessories, mounting bracket, reflector, and hardware
  • Thru-beam models include both light source and receiver
  • All models operate on AC or DC from 24 to 130 volts; relay or triac outputs
  • Output relay contacts are rated at 5 amps
  • High-speed response – limited by the output relay itself. 7ms Beam Make or Beam Break
  • Fiberoptic models available with infrared or red LED light sources
  • All models equipped with sensitivity adjustments
  • All models have red LED indicator showing status of output relay
  • All models have green LED beam status indicator for easy alignment
  • Switching power supply eliminates failures often caused by power line transients