Photoelectric Sensors
SICK WTB140-P132 Photoelectric sensor
SICK WTB140-P132 compact diffuse photoelectric switch with PNP output. Straightforward one-sided object detection for conveyors and packaging lines.
Overview
The SICK WTB140-P132 is a compact diffuse photoelectric switch for general object detection. It combines straightforward one-sided mounting with energetic diffuse evaluation, covering the everyday presence-detection tasks on conveyor and packaging equipment.
How It Works
Light emitted by the sensor is reflected by the target back to the receiver. Once the received intensity passes the adjusted threshold, the output switches. The design follows the energetic diffuse principle, so the effective range depends on the size, color and surface of the object.
Key Features
- Compact housing for confined mounting situations
- Diffuse detection without reflector or second unit
- PNP switching output (P order code)
- Simple sensitivity adjustment
- Reliable presence switching for routine automation tasks
- Industrial-grade housing for continuous operation
Typical Applications
- Carton and product detection on conveyors
- Presence checks at packaging stations
- Object detection on assembly transfer systems
- Monitoring of part flow between machine modules
- General sensing tasks in intralogistics equipment
Specifications
Attribute | Value |
|---|---|
Model | SICK WTB140-P132 |
Detection principle | Diffuse (energetic) photoelectric |
Output type | PNP switching output |
Housing family | Compact rectangular photoelectric switch |
Installation and Setup Notes
Commission the sensor with the darkest target that must be detected and leave sensitivity margin for production variations. Avoid positions where strongly reflective surfaces sit behind dark targets; if that cannot be avoided, move to a background-suppression model. Keep the lens area serviceable for periodic cleaning.
Frequently Asked Questions
Does the WTB140 detect transparent film?
Standard diffuse sensors have difficulty with fully transparent targets; the WTV4 family with V-optics is designed for transparent object detection.
Is a reflector required?
No, the object reflects the light directly.
What output is provided?
A PNP switching output, compatible with common PLC input modules.
Related Photoelectric Sensors
For transparent-object detection, see the SICK WTV4FE-8416A120A00. For a W12-class diffuse sensor, see the SICK WS12-3D2430.
