Inductive Proximity Sensor

 

Part Number: NBN3-F25-E8-5M-Y126746 Marking: Dansk Ventil Center (likely a custom part for them)

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1. General Description

 

This sensor is an inductive proximity switch, likely manufactured by Pepperl+Fuchs (indicated by the “NBN” type code, which is standard for P+F sensors). The marking “Dansk Ventil Center” suggests it is a customized version made specifically for valve applications.

It features a flat, rectangular F25 housing, designed for direct mounting onto pneumatic actuators or valves to monitor valve position (open/closed). The “NBN” designation indicates it is non-flush mountable. The “E8” output code typically signifies a dual PNP NO output, ideal for detecting two positions with a single sensor.

Key Features 🎯

 

• Valve Position Feedback: specifically designed for mounting on valve actuators (VDI/VDE 3845 standard).

• Dual Sensor: Contains two sensing faces in one housing to detect both open and closed positions.

• Non-Flush (NBN): Sensing range is not flush with the mounting surface.

• Housing Style: F25 – Flat, rectangular housing for direct actuator mounting.

• Output: PNP, Dual Normally Open (NO).

• Cable: Pre-cabled with a 5-meter length (indicated by “-5M”).

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2. Technical Specifications

 

Sensing Data

 

Electrical Data

 

Mechanical & Environmental Data

 

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3. Application

 

This sensor is used to provide electrical feedback for the position of a pneumatic quarter-turn actuator. It is mounted directly on top of the actuator, and a “puck” with metal targets is mounted on the actuator shaft.

• Sensor 1: Detects the “Open” position target.

• Sensor 2: Detects the “Closed” position target.

4. Wiring (Typical for Dual PNP E8)

 

• Brown (BN): L+ (10-30V DC)

• Blue (BU): L- (0V / GND)

• Black (BK): Output 1 (Signal for Position 1 / Open)

• White (WH): Output 2 (Signal for Position 2 / Closed)