Safety Photoelectric Beam Sensor / Tiny Retro Reflective Photoelectric Sensor
The W34 photoelectric sensor family features a durable plastic housing in ABS. All configuration components for the sensor are protected by a durable cover, allowing these sensors to be used in outdoor areas. The housing in die-cast zinc (W24-2) is recommended especially for tough and extreme ambient conditions.
A variety of other features are also available including, adjustable time delay, alarm output, test input, and DC voltage and universal AC/DC voltage. These provide additional flexibility and reduce the number of part numbers needed.
The W34 family includes background suppression proximity, retro-reflective and through-beam sensors. The background suppression proximity sensors are characterized by a long sensing range and immunity to ambient light.
- Durable plastic housing or zinc die-cast (W24-2)
- Protection cover for the configuration components
- Immune to ambient light and crosstalk from another sensor
- Switch selectable PNP or NPN output
- Switch selectable Light or Dark operating mode
- Versions with DC voltage (10…30V) or universal AC/DC voltage (12 … 240 V DC / 24 … 240 V AC)
- Optional test input, adjustable ON and OFF time delays, alarm output
- M12 or terminal chamber connection: 90° rotatable
- UL approval
- Excellent resistance to chemicals, which increases sensor life and reduces replacement costs
- The sensor cover protects configuration components against environmental hazards and reduces the variety of devices needed for stocking
- Immune to ambient light and crosstalk from another sensor, providing reliable operation and less downtime
- High operating reserve at a long sensing range of retro-reflective and through-beam sensors ensures reliable operation
- Variants with DC voltage and universal AC/DC voltage provide installation flexibility
| Sensor/ detection principle | Photoelectric retro-reflective sensor, Dual lens |
| Dimensions (W x H x D) | 27 mm x 92 mm x 70 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 0.03 m ... 22 m 1) |
| Sensing range | 0.03 m ... 22 m 1) |
| Type of light | Visible red light |
| Light source | LED 2) |
| Light spot size (distance) | Ø 250 mm (15 m) |
| Wave length | 660 nm |
| Adjustment | Potentiometer |
| Time type |
Off delay On delay Adjustable |
| Delay time | Adjustable via time delay selector switch, 0.5 s, 10 s |
| Alarm output | ✔ |
- 1) Reflector PL80A.
- 2) Average service life: 100,000 h at TU = +25 °C.
| Supply voltage | 10 V DC ... 30 V DC 1) |
| Ripple | < 5 Vpp 2) |
| Power consumption | ≤ 50 mA |
| Switching output |
NPN PNP |
| Switching mode |
Light switching Dark switching |
| Switching mode selector | Selectable via PNP/NPN selector, selectable via light/dark selector |
| Output current Imax. | 100 mA |
| Response time | ≤ 500 µs 3) |
| Switching frequency | 1,000 Hz 4) |
| Connection type | Terminal connection with M16 gland |
| Circuit protection |
A 5) C 6) D 7) |
| Protection class | II 8) |
| Weight | 140 g |
| Polarisation filter | ✔ |
| Housing material | Plastic, ABS |
| Enclosure rating | IP67 |
| Test input sender off | TE to 0 V |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient storage temperature | –40 °C ... +75 °C |
| UL File No. | NRKH.E181493 & NRKH7.E181493 |
- 1) Limit values.
- 2) May not exceed or fall below Uv tolerances.
- 3) Signal transit time with resistive load.
- 4) With light/dark ratio 1:1.
- 5) A = VS connections reverse-polarity protected.
- 6) C = interference suppression.
- 7) D = outputs overcurrent and short-circuit protected.
- 8) Reference voltage: 50 V DC.
Models of W34 Series Proximity Sensor Switch High-performance Photoelectric Sensors
WT34-B450
WT34-V240
WT34-V250
WT34-V540
WT34-R240
WT34-R250
WT34-B410
WT34-B420
WT34-V210
WT34-V220
WT34-V510
WT34-R210
WT34-R220
WL34-B430
WL34-B440
WL34-V230
WL34-V240
WL34-V530
WL34-V540
WL34-B430S03
WL34-R230
WL34-R240
WS/WE34-B430
WS/WE34-B440
wS/WE34-V230
WS/WE34-V240
WS/WE34-V530
WS/WE34-V540
WS/WE34-R230
WS/WE34-R240
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