| Type |
Thrubeam | Retro-reflective | Diffuse-reflective |
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| Type | Thrubeam | Polarised | Long-range | Short-range |
| NPN | PZ2-51 | PZ2-61 | PZ2-41 | PZ2-42 |
| PNP | PZ2-51P | PZ2-61P | PZ2-41P | PZ2-42P |
| Detecting distance | 7,000 mm | 2,500 mm (with R-2) | 600 mm (200 x 200 mm white mat paper) | 100 mm (100 x 100 mm white mat paper) |
| Detectable object | Opaque materials (8 x 8 mm min.) | Opaque materials (30 x 30 mm min.) | Transparent and opaque materials |
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| Hysteresis | — | 20% max. of detecting distance |
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| Response time | 1.5 ms max. | 1 ms max. (2 ms in alternate frequency mode 1.) |
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| Light source | Visible red LED |
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| Sensitivity adjustment | 1-turn trimmer (240°) |
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| Operation mode | LIGHT-ON/DARK-ON (switch-selectable) |
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| Indicators | Output and power 2.: Red LED, Stable operation: Green LED |
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| Control output | NPN or PNP: 100 mA (40 V) max., Residual voltage: 1 V max. |
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| Protection circuit | Reversed polarity, overcurrent protection, surge absorber |
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| Power supply | 12 to 24 VDC ±10% |
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| Current consumption | T: 20 mA max. R: 25 mA max. | 35 mA max. |
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| Enclosure rating | IP67 |
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| Ambient light | Incandescent lamp: 5,000 lux max., Sunlight: 20,000 lux max. |
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| Ambient temperature | -20 to +55°C, No freezing |
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| Relative humidity | 35 to 85%, No condensation |
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| Housing | Glass-fibre reinforced plastic |
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| Weight (including 2-m connector cable) | Transmitter/receiver: Approx. 50 g each | Approx. 50 g |
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