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EE-SPW321(-A)/421(-A)
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Compact, Thin-profile
Photomicrosensor with Special
Amplifier
H Slim amplifier with NPN output for easy
handling and mounting
H Operation indicator allows monitoring from
the amplifier housing or sensor head
H Simple wiring with a 3-conductor cable
H Light modulation effectively reduces
external light interference
Ordering Information
J PHOTOMICROSENSORS
Sensing method
Sensing distance
Slot 30 cm
Sensing object
Opaque: 2 mm dia. min.
Output configuration Part number
Dark-ON
EE-SPW321
EE-SPW321-A
Light-ON
EE-SPW421
EE-SPW421-A
J SENSING DISTANCE WITH APERTURE*
Size of aperture
0.5 x 3 mm
1 x 3 mm
Sensing distance
10 cm
20 cm
*Four apertures comprised of 2 different widths are provided with sensor unit.
Sensing object
Opaque: 0.5 mm dia. min.
Opaque: 1 mm dia. min.
Specifications
J RATINGS
Supply voltage
12 VDC -10% to 24 VDC +10%
Current consumption
30 mA max.
Sensing distance*
30 cm
Standard reference object**
Opaque: 2 mm dia. min.
Directional angle
10° to 40°
Response time
1 ms max. for both detection and reset
Control output
Load current: 100 mA (residual voltage: 1 V max.)
Light source
GaAs infrared LED (pulse modulated) with a peak wavelength of 940 nm
Operation indicator
Light-ON (red LEDs on sensor and amplifier)
Connecting method
Pre--wired with 2 m cable
*Refer to Receiver Output vs. Sensing Distance Characteristics in Engineering Data.
**An object as minute as 0.5 mm dia. can be sensed when an aperture is attached to the sensor.