Regular retroreflective sensors can detect almost all objects. But they have trouble detecting shiny objects like polished surfaces or mirrors. A standard retro-reflective sensor cannot detect such objects as they can be ‘fooled’ by the shiny object by reflecting the emitted beam back to the sensor. But a polarized retro-reflective sensor can realize normal detection about transparent objects, shiny or highly reflective objects accurately. i.e., clear glass, PET and transparent films.
| Polarized retro reflection | ||
| PTL-PM12SK-D | PTL-PM12DNR-D | |
| Technical specifications | ||
| Detection type | Polarized retro reflection | |
| Rated distance [Sn] | 12m (non-adjustable) | |
| Standard target | TD-05 reflector | |
| Light source | Red LED (650nm) | |
| Dimensions | 88 mm *65 mm *25 mm | |
| Output | Relay | NPN or PNP NO+NC | 
| Supply voltage | 24…240VAC/12…240VDC | 10…30 VDC | 
| Repeat accuracy [R] | ≤5% | |
| Load current | ≤3A (receiver) | ≤200mA (receiver) | 
| Residual voltage | ≤2.5V (receiver) | |
| Consumption current | ≤35mA | ≤25mA | 
| Circuit protection | Short-circuit and reverse polarity | |
| Response time | <30ms | <8.2ms | 
| Output indicator | Yellow LED | |
| Ambient temperature | -15℃…+55℃ | |
| Ambient humidity | 35-85%RH (non-condensing) | |
| Voltage withstand | 2000V/AC 50/60Hz 60s | 1000V/AC 50/60Hz 60s | 
| Insulation resistance | ≥50MΩ(500VDC) | |
| Vibration resistance | 10…50Hz (0.5mm) | |
| Degree of protection | IP67 | |
| Housing material | PC/ABS | |
| Connection | Terminal | |
 
               
               
               
               By Lee from Rome - 2018.06.28 19:27
 By Lee from Rome - 2018.06.28 19:27
               By Leona from Lithuania - 2018.11.28 16:25
 By Leona from Lithuania - 2018.11.28 16:25