Specification

Specifications table for model EX-31B
ItemPerformance characteristics
CE Marking Directive ComplianceEMC Directive, RoHS Directive
Sensing Range 500 mm 19.685 in
Sensing Object dia. 2 mm dia. 0.079 in or more opaque object (Completely beam interrupted objects)
Hysteresis-
Repeatability (Perpendicular to Sensing Axis) 0.05 mm 0.002 in or less
Supply Voltage 12 to 24 V DC plus or minus 10 % Ripple P-P 10 % or less
Current ConsumptionEmitter: 10 mA or less
Receiver: 10 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: Output Operation Dark-ON
Output: Short-Circuit ProtectionIncorporated
Response Time0.5 ms or less
Operation Indicator Orange LED (lights up when the output is ON)
(incorporated on the receiver)
Stability IndicatorGreen LED (lights up under stable light received condition orstable dark condition, incorporated on the receiver)
Sensitivity Adjuster-
Pollution Degree 3 (Industrial environment)
ProtectionIP67 (IEC)
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)
MaterialEnclosure: Die-cast zinc (Nickel plated)
Lens: Polycarbonate
Enclosure cover: Polycarbonate
Cable0.1 mm2 3-core (emitter: 2-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 (both emitter and receiver).
Weight (Typ.)Net weight (each emitter and receiver): 20 g approx
Gross weight: 50 g approx
AccessoryNut: 2 pcs
Toothed lock washer: 2 pcs

Stock Check

Stock check for product EX-31B
DistributorQuantityInventory Date
Digi-Key Electronics
United States
Tel. 1-800-344-4539
16410/17/2021
Onlinecomponents.com
United States
Tel. 1-702-462-7300
510/17/2021
Ramco Innovations - National
United States
Tel. 1-800-280-6933
510/15/2021
Master Electronics
United States
Tel. 1-888-473-5297
510/17/2021

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