Check the listing for details. 28" Keyence GL-R71F Finger Safety Curtain Main Unit Transmitter & Receiver Set. Condition: Used. Listed at 879.99 USD. 28" Keyence GL-R71F Finger Safety Curtain Main Unit Transmitter & Receiver Set Keyence GL-R71F-R Safety Curtain Main Unit Finger Protection 71 Optical Axes Length: 28" Includes the transmitter and the receiver curtain. ModelGL-R71FDetection capabilityø0.55" ø14 mmBeam axis spacing/Lens diameter10 mm 0.39" / ø4 ø0.16"Detecting distance0.66 to 32.81' 0.2 to 10 m*1Effective aperture angleMax. ±2.5° (When operating distance is 9.84' 3 m or more)Light sourceInfrared LED (870 nm)Response time (OSSD) (ms)Wire synchronization, One-line or Optical synchronization system (Channel 0)ON→OFF12.1OFF→ON56.9*2All blocked→ON85.2*3Optical synchronization system (Channel A or B)ON→OFF17.6OFF→ON65.3*2All blocked→ON107.4*3Detection modeTurns on when no interruptions are present in the detection zoneSynchronization between the transmitter and receiverOptical synchronization or Wire synchronization (Determined by wiring)Light interference prevention functionPrevents mutual interference in up to two GL-R systems. Optical synchronization: prevented by Channel A and B with setting switch Wire synchronization: prevented automaticallyControl output (OSSD output)Output2 transistor outputs. (PNP or NPN is determined by the cable type)Max. load current500 mA*4Residual voltage (during ON)Max. 2.5 V (with a cable length of 16.40' 5 m)OFF state voltageMax. 2.0 V (with a cable length of 16.40' 5 m)Leakage currentMax. 200 µAMax. capacitive load2.2 µFLoad wiring resistanceMax. 2.5 ΩSupplemental output (Non-safety-related output)AUXtransistor outputs. (PNP or NPN is determined by the cable type) Load current: Max. 50 mA, Residual voltage: Max. 2.5 V (with a cable length of 16.40' 5 m)Error outputMuting lamp outputIncandescent lamp (24 VDC, 1 to 5.5 W) LED lamp (load current: 10 to 230 mA) can be connected.External inputWhen using a PNP output cableEDM input Wait input Reset input Muting input 1, 2 Override inputON voltage: 10 to 30 V OFF voltage: Open or 0 to 3 V Short circuit current: Approx. 2.5 mA (Approx. 10 mA with EDM input only)When using an NPN output cableON voltage: 0 to 3 V OFF voltage: Open or 10 V or more Up to the power voltage Short circuit current: Approx. 2.5 mA (Approx. 10 mA with EDM input only)RatingPower voltage24 VDC ±20%, ripple (P-P) 10% or less, Class 2Power supplyCurrent consumption (Max.) (mA)Transmitter66Receiver78Protection circuitReverse current protection, short-circuit protection for each output, surge protection for each outputApproved standardsEMCEMSIEC61496-1, EN61496-1, UL61496-1EMIEN55011 ClassA, FCC Part15B ClassA, ICES-003 ClassASafetyIEC61496-1, EN61496-1, UL61496-1 (Type 4 ESPE) IEC61496-2, EN61496-2, UL61496-2 (Type 4 AOPD) IEC61508, EN61508 (SIL3), IEC62061, EN62061 (SIL CL3) EN ISO13849-1:2015 (Category 4, PLe) UL508 UL1998Environmental resistanceEnclosure ratingIP65/IP67 (IEC60529)Overvoltage categoryIIAmbient lightIncandescent lamp: 3,000 lux or less., Sunlight: 20,000 lux or lessOperating ambient temperature-10 to +55 °C 14 to 131 °F (No freezing)Storage temperature-25 to +60 °C -13 to 140 °F (No freezing)Operating relative humidity15 to 85 % RH (No condensation)Storage relative humidity15 to 95 % RHVibration resistance10 to 55 Hz, Double amplitude 0.7 mm 0.03", 20 sweeps in each of the X, Y, and Z directionsShock resistance100 m/s2 (Approx. 10 G), 16 ms pulse, 1,000 times in each of the X, Y, and Z directionsMaterialMain unit caseAluminumUpper case/lower caseNylon (GF 30%)Front coverPolycarbonate, SUS304WeightTransmitter1000 gReceiver1010 g If there's something you're not sure about or have a question about anything, just send us a message by clicking "Ask a question" below the listing. Free Shipping is only for the inner 48 states (Large Freight Shipments Do Not Apply). ,