Wenglor LK89PA7 Universal Retro-Reflex Sensor Overview
The Wenglor LK89PA7 is an ultra-compact universal retro-reflex sensor built to maximize spatial efficiency in heavy-duty industrial environments. Featuring a high-performance miniature design with an integrated metal plug, this optoelectronic sensor requires a matching reflector to establish a reliable sensing path. With an ample functional reserve, the LK89PA7 is engineered to operate seamlessly across high-demand production lines, ensuring consistent and stable detection profiles.
Technical and Optical Specifications
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Operating Range: Up to 4,500 mm when configured with the RQ100BA reference reflector or reflex foil.
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Light Source & Optics: Standard red light system utilizing an integrated two-lens optic assembly.
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Polarization Filter: Built-in polarization filter to ensure the absolute rejection of false signals from shiny, glossy, or metallic targets.
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Angular Characteristics: Focused 5° opening angle for structured alignment.
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Sensing Hysteresis: Optimized switching hysteresis maintained under 15%.
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Service Life: Long-term operational reliability rated at 100,000 hours under constant ambient conditions of +25 °C.
Electrical Data and Interface Properties
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Supply Voltage: Wide 10 to 30 V DC operational threshold.
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Current Consumption: High efficiency with a current draw of less than 30 mA at a nominal 24 V supply.
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Performance Speed: 1 kHz switching frequency paired with a fast 500 µs response time.
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Switching Output: PNP NO/NC antivalent configuration delivering up to 100 mA switching current.
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Output Voltage Drop: Low voltage drop profile of less than 2.5 V.
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Circuit Safeguards: Fully integrated short circuit protection, reverse polarity protection, and overload protection mechanisms.
Calibration, Mechanical, and Environmental Safety
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Adjustment Method: Manual calibration via an onboard analog potentiometer.
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Control Features: Dedicated control panel equipped with a switching distance adjuster alongside status and contamination warning indicators.
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Enclosure Integrity: Full internal encapsulation housed within a rugged plastic shell, yielding an IP67 degree of protection.
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Connection Profile: Industry-standard M8 × 1, 4-pin connection matrix.
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Thermal Endurance: Engineered for extreme factory conditions with an operational range spanning from -25 °C to +60 °C.
