| Type | Thru-beam | Retroreflective | Diffuse reflective |
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| Type | Front sensing | Side sensing | Side sensing | Side sensing |
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Light-ON | EX-21A
(-PN) | EX-23
(-PN)
(Note 3) | EX-29A
(-PN) | EX-22A
(-PN) |
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| Dark-ON | EX-21B
(-PN) | EX-29B
(-PN) | EX-22B
(-PN) |
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| CE marking directive compliance | EMC Directive, RoHS Directive |
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| Sensing range | 1 m
3.281 ft | 2 m
6.562 ft | 30 to 200 mm
1.181 to 7.874 in
(Note 4) | 5 to 160 mm 0.197
to 6.299 in (Note 5)
with white non-glossy paper (200 x 200 mm)
(7.874 x 7.874 in) |
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| Sensing object | Min. ø2.6 mm ø0.102 in
opaque object
(Setting distance
between emitter and
receiver: 1 m 3.281 ft) | Min. ø3 mm ø0.118 in
opaque object
(Setting distance
between emitter and
receiver: 2 m 6.562 ft) | ø15 mm ø0.591 in or
more opaque or translucent object
(Note 4, 6) | Opaque,
translucent or
transparent
object
(Note 6) |
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| Hysteresis | – | 15 % or less of operation distance [200 x 200 mm 7.874 x 7.874 in (with white non-glossy paper)] |
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Repeatability
(perpendicular to sensing axis) | 0.05 mm 0.002 in or less | 0.5 mm
0.020 in or less | 0.3 mm
0.012 in or less |
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| Supply voltage | 12 to 24 V DC ± 10 % Ripple P-P 10 % or less |
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| Current consumption | Emitter: 10 mA or less, Receiver: 10 mA or less | 13 mA or less |
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| Output | <NPN output type>
NPN open-collector transistor
・Maximum sink current: 50 mA
・Applied voltage: 30 V DC or less (between output and 0 V)
・Residual voltage: 2 V or less (at 50 mA sink current)
1 V or less (at 16 mA sink current)<PNP output type>
PNP open-collector transistor
・Maximum source current: 50 mA
・Applied voltage: 30 V DC or less (between output and +V)
・Residual voltage: 2 V or less (at 50 mA source current)
1 V or less (at 16 mA source current) |
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Utilization category | DC-12 or DC-13 |
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| Short-circuit protection | Incorporated |
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| Response time | 0.5 ms or less |
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| Operation indicator | Orange LED
(lights up when the output is ON) (thru-beam type: located on the receiver) |
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| Stability indicator | Green LED (lights up under stable light received condition
or stable dark condition), located on the receiver | Green LED (lights up under stable light received condition or stable dark condition) |
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| Sensitivity adjuster | – | Continuously variable adjuster,
located on the emitter | Continuously variable adjuster |
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| Operation mode switch | – | Located on the receiver | – |
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| Pollution degree | 3 (Industrial environment) |
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| Protection | IP67 (IEC) |
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| Ambient temperature | -25 to +55 ℃ -13 to +131 ℉
(No dew condensation or icing allowed),
Storage: -30 to +70 ℃ -22 to +158 ℉ |
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| Ambient humidity | 35 to 85 % RH, Storage: 35 to 85 % RH |
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| Ambient illuminance | Incandescent light: 3,000 lx or less at the light-receiving face |
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| Voltage withstandability | 1,000 V AC for one min. between all supply terminals connected together and enclosure |
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| Insulation resistance | 20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure |
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| Vibration resistance | 10 to 500 Hz frequency, 3 mm 0.118 in double amplitude (20 G max.) in X, Y and Z directions for two hours each |
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| Shock resistance | 500 m/s2 acceleration (50 G approx.) in X, Y and Z directions three times each |
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| Emitting element | Red LED (modulated) |
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| Peak emission wavelength | 640 nm
0.025 mil | 650 nm
0.026 mil | 680 nm
0.027 mil | 680 nm
0.027 mil |
| Material | Enclosure: Polyarylate, Lens: Polyarylate |
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| Cable | 0.1 mm2 3-core (thru-beam type sensor emitter: 2-core) cabtyre cable, 2 m 6.562 ft long |
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| Cable extension | Extension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable (thru-beam type: both emitter and receiver). |
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| Weight | Net weight (each emitter and receiver): 20 g approx.
Gross weight: 60 g approx. | Net weight: 20 g approx., Gross weight: 45 g approx. |
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| Accessories | – | Adjusting screwdriver:
1 pc. | RF-200 (Reflector): 1 pc.
Adjusting screwdriver: 1 pc. | Adjusting screwdriver:
1 pc. |
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