Photoelectric Sensors
SICK GTB2F-N1131 Photoelectric sensor
SICK GTB2F-N1131 miniature background suppression photoelectric sensor, part 1093725. Stable color-independent switching for compact machines and moving parts.
Overview
The SICK GTB2F-N1131 (part number 1093725) is a member of the G2 miniature sensor family providing background-suppression photoelectric detection. It is designed for presence detection in extremely compact machines, where the switching point must ignore the surfaces behind the target.
How It Works
The sensor combines a light emitter and a distance-sensitive receiver in one miniature housing. Returned light is evaluated by position on the receiver element: reflections from the target distance trigger the output, while reflections from farther surfaces are rejected. This distance-based evaluation makes detection independent of the object's color and surface finish.
Key Features
- Miniature housing for cramped machine layouts and moving carriers
- Background suppression keeps the switching point stable and color-independent
- Suitable for short-range detection inside assemblies and fixtures
- Lightweight construction for use on moving machine parts
- Simple sensitivity adjustment for commissioning
- Robust housing suitable for continuous industrial operation
Typical Applications
- Detection of small components in compact assembly modules
- Monitoring of slides, clamps and ejector positions
- Part presence checks on miniature conveyor and transfer systems
- Verification of consumable supply in dispensing equipment
- Position feedback in laboratory automation devices
Specifications
Attribute | Value |
|---|---|
Model | SICK GTB2F-N1131 |
Part number | 1093725 |
Detection principle | Diffuse photoelectric with background suppression |
Housing family | G2 miniature rectangular |
Installation and Setup Notes
On miniature sensors, the mounting bracket carries a large share of the alignment, so use a rigid bracket and secure screws with the recommended torque. Set the switching point using the actual production target. If the sensor is mounted on a moving slide, confirm that cable flexing does not disturb the optical alignment over time.
Frequently Asked Questions
Where is a background-suppression miniature sensor preferred over a standard diffuse sensor?
Wherever a reflective surface sits behind the target, for example a metal fixture wall close behind the part. Background suppression ignores that surface within its distance evaluation.
Can the GTB2F-N1131 be used on moving machine parts?
Yes, its small size and low weight make it suitable for moving carriers and slides, provided the cable is routed with adequate strain relief.
Does it require a reflector?
No. It works on the diffuse principle, detecting light reflected directly from the object.
Related Photoelectric Sensors
For a G2-family model with a 2 mm to 120 mm range, see the SICK GTB2S-N1451. For a compact G6 alternative, see the SICK GTB6-N1212.
