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K7L-UD Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The Omron K7L-UD is an ultra-compact, long-distance wiring liquid leakage sensor amplifier from the K7L-U series. It is designed for non-contact detection of a wide variety of liquids, ranging from water to low-conductivity chemical liquids, in industrial automation applications.

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Key Specifications Parameter Value / Description Manufacturer Omron Automation and Safety Series K7L-U Product Type Liquid Leakage Sensor Amplifier (Long-distance Wiring) Disconnection Detection Supported (wire break detection) Output Type NPN open-collector transistor Output Capacity 100 mA at 30 VDC max. Supply Voltage (Rated) 12 to 24 VDC Supply Voltage (Allowable) 10 to 30 VDC Operate Resistance 0 to 1 MΩ variable (adjustable via potentiometer) Release Resistance 105% min. of operate resistance Response Time (Operate/Release) 800 ms max. Response Time (Power ON) 2 s max. Total Wiring Distance 400 m max. (connecting cable + sensing band) Detection Signal (Disconnection) 10 VDC max., 200 ms pulse Disconnection Detection Time 10 s max. Disconnection Recovery Operation is recovered by resetting the power supply Power Consumption 1 W max. Ambient Temperature (Operating) -10°C to 55°C Ambient Humidity (Operating) 45% to 85% Insulation Resistance 10 MΩ at 100 VDC (between case and current-carrying parts) Dielectric Strength 1,000 VAC at 50/60 Hz for 1 min (between case and current-carrying parts) Vibration Resistance 10 to 150 Hz, 0.1-mm single amplitude with 50 m/s² acceleration Shock Resistance 150 m/s², 3 times each in 6 directions on 3 axes Mounting Method Plug-in / Socket mounting (8-pin) Applicable Socket P2RF-08 / P2RF-08-E (Screw terminal block) Dimensions (W x H x D) 28.2 × 12.8 × 46 mm Weight Approx. 14 g