Specifications table for model EX-28B
ItemPerformance characteristics
CE Marking Directive ComplianceEMC Directive, RoHS Directive
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
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.
Hysteresis15 % or less of operation distance [100 x 100 mm 3.937 x 3.937 in with white non-glossy paper]
Repeatability (Perpendicular to Sensing Axis) 0.3 mm 0.012 in or less
Supply Voltage 12 to 24 V DC plus or minus 10 % Ripple P-P 10 % or less
Current Consumption15 mA or less
OutputNPN 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)
Output: Utilization Category DC-12 or DC-13
Output: Short-Circuit ProtectionIncorporated
Response Time0.5 ms or less
Operation Indicator Orange LED (lights up when the output is ON)
Stability IndicatorGreen LED (lights up under stable light received condition or stable dark condition)
ProtectionIP67 (IEC)
Operation Mode Switch -
Sensitivity AdjusterContinuously variable adjuster
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
Ambient Humidity35 to 85 % RH, Storage: 35 to 85 % RH
Ambient IlluminanceIncandescent light: 3,000 lx or less at the light-receiving face
Voltage Withstandability1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation Resistance20 MOhm , or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration Resistance10 to 500 Hz frequency, 3 mm 0.118 in double amplitude (20 G max.) in X, Y and Z directions for two hours each
Shock Resistance500 m/s2 acceleration (50 G approx.) in X, Y and Z directions three times each
Emitting ElementRed LED (modulated)
Emitting Element: Peak Emission Wavelength650 nm 0.026 mil
MaterialEnclosure: Polyethylene terephthalate
Lens: Polyalylate
Cable0.1 mm2 3-core cabtyre cable, 2 m 6.562 ft long
Cable ExtensionExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable.
Weight (Typ.)Net weight: 20 g approx
Gross weight: 45 g approx
AccessoryAdjusting screwdriver: 1 pc.

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