Technical Datasheet: wenglor OHD202A0103

Part Number / Type: OHD202A0103

Product Category: Photoelectric Reflex Sensor with Background Suppression (Reflexsensor mit Hintergrundausblendung)

1. Product Characteristics & Application

• Sensor Type: Photoelectric Reflex Sensor (Diffuse Reflection Sensor)

• Sensing Principle: Background Suppression (BGS). This advanced optical technology allows the sensor to reliably detect objects of varying colors, shapes, or reflective surfaces while completely ignoring shiny background elements beyond the set range.

• Housing Design: Cylindrical threaded barrel type (M18 standard size).

• Light Type: Visible red light, providing a clear, precise light spot for effortless installation and target alignment.

• Special Features: Equipped with a rugged nickel-plated brass or stainless steel metallic housing and an adjustable potentiometer at the rear for tuning the sensing range. Ideal for automated conveyor sorting lines, part-presence validation loops, packaging machines, and materials handling systems where background interference is a challenge.

2. Electrical Data

• Operating Voltage ($U_B$): 10…30 V DC

• Electrical Design: DC PNP

• Output Function: Light-ON / Dark-ON selectable (configurable depending on pin out wiring layout).

• Current Carrying Capacity: High responsive output switching rating typical of the wenglor industrial line.

• Approvals: CE Certified, Protection Class III.

3. Performance & Protection Data

• Short-Circuit Protection: Yes (Cyclic)

• Reverse Polarity Protection: Yes

• Overload Protection: Yes

• Switching Frequency: High responsive cyclic speed optimized for rapid part sorting, counting, and real-time synchronization circuits.

4. Mechanical & Environmental Data

• Dimensions: M18 × 1 mm standard industrial metric threads with a durable front optical lens window.

• Housing Material: Rugged metal housing with high mechanical wear and chemical resistance.

• Ingress Protection Rating: IP67 ruggedized sealing against water, dust, and common manufacturing fluids.

• Ambient Operating Temperature: Standard automated factory thermal resilience range.

• Manufacturer: wenglor sensoric GmbH, Germany.

5. Electrical Connection & Wiring Layout

The sensor features an integrated standard rear-facing male circular plug connector hub (M12 × 1, 4-pin configuration).

Standard Pinout Mapping (wenglor Reflex line standard):

• Pin 1 (Brown): + Supply Voltage Input (10…30 V DC)

• Pin 2 (White): Control Input or Complementary Output Channel

• Pin 3 (Blue): 0V Ground / Common Reference Line

• Pin 4 (Black): Primary Output Switching Signal (PNP Load Connection)

Wiring Diagram:

       [ Pin 1 / BN ] ───────────────────────── ( + 10...30 V DC )
              │
          ┌───┴───┐
          │wenglor│───────── [ Pin 4 / BK ] ──── [ PNP Output Load ] ───┐
          │  BGS  │───────── [ Pin 2 / WH ] ──── [ Complementary/Ctrl ] ──┤
          └───┬───┘                                                   │
              │                                                       │
       [ Pin 3 / BU ] ────────────────────────────────────────────────┴─── ( 0V ) DATA SHEET