


| Parameter | Value |
|---|---|
| Item | Specifications |
| Cable | 0.1 mm2 3-core cabtyre cable, 2 m 6.562 ft long |
| Output | 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) |
| Weight | Net weight: 20 g approxGross weight: 45 g approx |
| Details | Narrow-view reflective(Long distance spot beam type)[Side sensing] |
| Product | Ultra-compact Photoelectric Sensor |
| Material | Enclosure: Polyethylene terephthalateLens: Polyalylate |
| Accessory | Adjusting screwdriver: 1 pc. |
| Hysteresis | 15 % or less of operation distance [100 x 100 mm 3.937 x 3.937 in with white non-glossy paper] |
| Protection | IP67 (IEC) |
| Part Number | EX-28B |
| Product name | Ultra-compact Photoelectric Sensor EX-20 Ver.2 |
| Response time | 0.5 ms or less |
| Sensing range | 45 to 115 mm 1.772 to 4.528 in with white non-glossy paper (100 x 100 mm 3.937 x 3.937 in), spot diameter dia. 5 mm dia. 0.197 in with setting distance 80 mm 3.150 in |
| Product Number | EX-28B |
| Sensing object | Opaque, translucent or transparent object (Note) (Min. dia. 1 mm dia. 0.039 in copper wire at setting distance 80 mm 3.150 in)(Note) Make sure to confirm detection with an actual sensor before use. |
| Supply voltage | 12 to 24 V DC plus or minus 10 % Ripple P-P 10 % or less |
| Cable extension | Extension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable. |
| Ambient humidity | 35 to 85 % RH, Storage: 35 to 85 % RH |
| Emitting element | Red LED (modulated) |
| Shock resistance | 500 m/s2acceleration (50 G approx.) in X, Y and Z directions three times each |
| Ambient illuminance | Incandescent light: 3,000 lx or less at the light-receiving face |
| Ambient temperature | -25 to +55 degrees -13 to +131 degrees Fahrenheit (No dew condensation or icing allowed), Storage: -30 to +70 degrees -22 to +158 degrees Fahrenheit |
| Current consumption | 15 mA or less |
| Operation indicator | Orange LED (lights up when the output is ON) |
| Stability indicator | Green LED (lights up under stable light received condition or stable dark condition) |
| Sensitivity adjuster | Continuously variable adjuster |
| Vibration resistance | 10 to 500 Hz frequency, 3 mm0.118 indouble amplitude (20 G max.) in X, Y and Z directions for two hours each |
| Insulation resistance | 20 MOhm , or more, with 250 V DC megger between all supply terminals connected together and enclosure |
| Operation mode switch | - |
| Voltage withstandability | 1,000 V AC for one min. between all supply terminals connected together and enclosure |
| Output:Utilization category | DC-12 or DC-13 |
| CE marking directive compliance | EMC Directive, RoHS Directive |
| Output:Short-circuit protection | Incorporated |
| Emitting element:Peak emission wavelength | 650 nm 0.026 mil |
| Repeatability(perpendicular to sensing axis) | 0.3 mm 0.012 in or less |
Technical specifications and performance data
Installation and operation guide