Photoelectric Fork Sensor Panasonic PM-T65, T-type, 5–24 V DC, light-on and dark-on switching

The Panasonic PM-T65 is a T-type photoelectric fork sensor engineered for reliable presence and position detection in industrial automation. Operating on a 5–24 V DC supply, this fork sensor provides both light-on and dark-on switching modes, enabling flexible integration into conveyor systems, pick-and-place stations, label detection tasks and other applications requiring non-contact sensing of small parts, edges or markings. The fork form factor positions emitter and receiver in a compact U-shaped housing that simplifies alignment and reduces the influence of ambient light.

Advantages

The PM-T65 supports both light-on and dark-on logic, allowing selection of the switching behavior that best fits the control scheme. Its 5–24 V DC operating range ensures compatibility with common control systems and PLC inputs. The fork design permits precise non-contact detection of thin objects such as labels, films, or small components without requiring additional optical accessories. The sensor’s compact T-type housing facilitates installation in tight spaces and on automated lines where space is limited.

Suitable for

• Detection of small parts and components on conveyors and feeders
• Label, tag or edge detection on packaging and printing machines
• Presence sensing in assembly and pick-and-place equipment
• Non-contact inspection where precise alignment and fast response are needed

Key specifications

• Form factor: T-type fork sensor with emitter and receiver in opposing arms
• Supply voltage: 5–24 V DC compatible with common industrial controls
• Switching modes: selectable light-on and dark-on output behavior
• Output type: digital switching suitable for PLC or controller inputs
• Detection method: through-beam fork detection for small, thin targets
• Mounting: compact fork housing designed for in-line or perpendicular attachment

How to use

Mount the PM-T65 so that the target passes through the fork opening between the emitter and receiver. Connect the sensor to a suitable 5–24 V DC supply and wire the output to the control input according to the required light-on or dark-on logic. Adjust alignment by positioning the sensor housing to center the target within the fork gap and secure the unit using the recommended mounting points. Confirm correct switching behaviour by passing representative targets through the fork and observing the control input or indicator LEDs, then fine-tune alignment for repeatable detection.

Usage recommendations

For reliable operation, keep the fork opening free of dust and debris and avoid mounting in locations with direct exposure to intense ambient light sources. Use stable DC supply voltage and proper wiring practices to prevent false triggering. When detecting translucent or reflective materials, test both light-on and dark-on modes to determine the most consistent switching state for your application.