Omron E3X-NH51 | Omron Fiber Optic Amplifier 12–24VDC PNP Timer Function

Description The Omron E3X-NH51 is a fiber optic sensor amplifier with timer functionality designed for precision detection in industrial automation systems. It operates on 12 to 24 VDC and features a PNP open-collector output with fine sensitivity adjustment. The unit supports automatic and manual threshold tuning for stable sensing in variable environmental conditions. Technical Specifications Condition New/Never Used Surplus Brand Omron Category Sensors & Switches Part Number E3X-NH51 Subcategory Photoelectric Series E3X-NH Amplifier Type Timer Function Fiber Optic Amplifier Light Source Red LED (680 nm) Supply Voltage 12–24 VDC ±10% Current Consumption 75 mA max. Output Type PNP Open Collector Max Load Current 50 mA Sensitivity Adjustment Automatic Teaching / 13-Level Manual Fine Adjustment Indicators Operation (Orange), 8-Level Incident, 13-Level Threshold Protection Output Short-Circuit, Reverse Polarity Mounting Type DIN Rail Operating Temperature -25°C to 55°C Enclosure Rating IEC IP50 Weight 0.35 lbs Information About E3X-NH51 The E3X-NH51 is part of the Omron E3X-NH series of high-performance fiber optic amplifiers used with compatible fiber optic sensor heads. It incorporates a pulse-modulated red LED light source (680 nm) and a 16-bit processing architecture for enhanced detection stability. The amplifier includes timer functionality with selectable operation modes and supports automatic teaching as well as 13-level manual fine threshold adjustment. Designed for DIN rail mounting, it integrates output short-circuit and reverse polarity protection to ensure reliable operation in industrial control panels. Key Features: Fiber Optic Amplifier with Timer Function: Supports delayed output control for process applications. 12–24 VDC Supply: Compatible with standard industrial DC systems. PNP Open Collector Output: Provides solid-state switching up to 50 mA load current. 13-Level Fine Threshold Adjustment: Enables precise manual sensitivity control. Automatic Teaching Modes: Simplifies setup and adapts to changing sensing conditions. 8-Level Incident Light Indicator: Displays received light intensity for accurate alignment. Built-in Protection Circuits: Includes output short-circuit and reverse polarity protection. DIN Rail Mounting: Designed for compact control cabinet installation. The E3X-NH51 delivers the reliability and precision required for advanced fiber optic sensing and timer-based control applications.