Why Choose the Carlo Gavazzi PMD8RI Diffuse-Reflective Photoelectric Sensor?
The Carlo Gavazzi PMD8RI is an industrial diffuse-reflective photoelectric sensor designed for reliable non-contact object detection across a wide range of automation and machine-control applications. Part of the Carlo Gavazzi PMD series, it combines adjustable optical sensing with a versatile relay output and wide-range AC/DC power supply.
The PMD8RI uses 880 nm modulated infrared light and detects light reflected directly from the target, eliminating the need for a separate reflector or receiver. Its rated operating distance is adjustable from 200–800 mm, allowing the sensor to be configured for different target positions and application requirements.
A major advantage of the PMD8RI is its broad electrical compatibility. It operates from 10.8–264 V DC or 21.6–264 V AC and provides an SPDT change-over relay output with NO+NC contacts. Screw-terminal connection, selectable light/dark switching, adjustable sensitivity and a robust IP67 rectangular plastic housing make it a versatile choice for industrial machinery and automation systems.
Key Advantages
- 200–800 mm adjustable sensing distance for flexible object detection.
- Diffuse-reflective sensing eliminates the need for a separate reflector or receiver.
- SPDT change-over relay output provides both normally open and normally closed contacts.
- Wide 10.8–264 V DC / 21.6–264 V AC power range supports diverse control systems.
- 880 nm modulated infrared light provides reliable industrial optical sensing.
- Selectable light-on or dark-on operation provides flexible machine-control logic.
- IP67 protection supports reliable operation in demanding industrial environments.
Key Features
- Carlo Gavazzi PMD photoelectric sensor series.
- Diffuse-reflective sensing principle.
- 200–800 mm rated operating distance.
- 880 nm modulated infrared light source.
- 10.8–264 V DC operating supply.
- 21.6–264 V AC operating supply.
- Relay contact output.
- SPDT change-over NO+NC contact configuration.
- Selectable light/dark switching.
- Adjustable sensing sensitivity.
- LED indication for target detection.
- Screw-terminal electrical connection.
- 1/2-inch NPT cable entry.
- Rectangular industrial plastic housing.
- IP67 degree of protection.
Versatile Relay-Based Object Detection for Industrial Automation
Diffuse-reflective sensors such as the Carlo Gavazzi PMD8RI transmit infrared light towards the target and monitor the light reflected directly back to the sensor. This enables objects to be detected from one side of a conveyor, machine or process without requiring a reflector or separate receiving sensor, simplifying installation where access to the opposite side is limited.
The PMD8RI is particularly versatile because its SPDT relay output and wide AC/DC supply range allow it to interface with many different industrial control circuits. Adjustable sensitivity and selectable light/dark switching further simplify application-specific configuration, making the sensor suitable for both legacy machinery and general-purpose automation installations.
Typical Applications
- Conveyor product and package detection.
- Packaging and processing machinery.
- Material handling systems.
- Presence and absence detection.
- Product counting applications.
- Industrial machine control systems.
- Warehouse and logistics automation.
- AC and DC relay-based control installations.
