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:
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Fiber Optic Amplifier with Timer Function: Supports delayed output control for process applications.
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12–24 VDC Supply: Compatible with standard industrial DC systems.
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PNP Open Collector Output: Provides solid-state switching up to 50 mA load current.
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13-Level Fine Threshold Adjustment: Enables precise manual sensitivity control.
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Automatic Teaching Modes: Simplifies setup and adapts to changing sensing conditions.
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8-Level Incident Light Indicator: Displays received light intensity for accurate alignment.
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Built-in Protection Circuits: Includes output short-circuit and reverse polarity protection.
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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.
