| Ordering Code - NPN Light | D31C-18DRFO-50-NL-2S |
| Ordering Code - PNP Light | D31C-18DRFO-50-PL-2S |
| Ordering Code - NPN Dark | D31C-18DRFO-50-ND-2S |
| Ordering Code - PNP Dark | D31C-18DRFO-50-PD-2S |
| Nominal Sensing Distance, Sn | 50mm + 10% |
| Minimum Target Size | 50 x 50mm, white paper of minimum 90% reflectance |
| Hysteresis | < 20% of Sn |
| Ambient Temperature Range | 0 to 500C |
| Ambient Light safety Level | 10,000 lux |
| Function Display | Red LED indicates output status |
| Supply Voltage | 10-30VDC |
| Supply Voltage Ripple | < 10% peak-to-peak |
| No-load current | < 30mA |
| Rated Operational Current, Ie | <200mA resistive |
| Voltage Drop at Ie | < 1.5V |
| Distance Adjustment | Via single-turn potentiometer |
| Maximum Switching Frequency | 250 Hz |
| Protections | Reverse polarity, Short circuit |
| Housing Material | Nickel-plated Brass |
| Housing Size | M18 x 1 x 105mm |
| Type of Fibre Optic Cable | Polymer Fibre, Polyethylene Sheated |
| Least bending radius of fibre optic cable | 22 mm |
| Sensing Head Size | M6 x 1 x 18mm |
| Grade of Protection | IP63 |
| Cable - Electrical | 3 x 0.22mm2, 2m long, PVC |
| Cable - Fibre Optic | 2 x 2.2mm sheath diameter, 1m long end-to-end |
