The **M2AC-A30-R/Q** is a high-performance, industrial-grade inductive proximity sensor manufactured by **Contrinex**. It belongs to the "Full Inox" (Full Stainless Steel) family, known for extreme durability in harsh environments. --- ### 1. Technical Specifications The following table summarizes the core electronic and mechanical parameters of the M2AC-A30-R/Q: | Feature | Specification | | :--- | :--- | | **Housing Size** | M12 (12mm Diameter) | | **Sensing Distance ($S_n$)** | 3.0 mm | | **Output Type** | PNP (Normally Open) | | **Connection Type** | M12 4-pin Connector | | **Operating Voltage** | 10 ... 30 VDC | | **Switching Frequency** | ≤ 2,500 Hz | | **Housing Material** | Stainless steel V2A / AISI 303 | | **Enclosure Rating** | IP68 / IP69K | --- ### 2. Electronic Component Breakdown The internal electronics of this sensor are designed to handle industrial noise and physical stress: * **ASIC Technology:** It utilizes a custom Application-Specific Integrated Circuit (ASIC) that ensures high precision, temperature stability, and repeatability. * **Protection Circuits:** * **Short-circuit Protection:** Protects the internal components if the output is accidentally grounded. * **Reverse Polarity Protection:** Prevents damage if the power supply wires are connected backwards. * **Inductive Protection:** Absorbs voltage spikes caused by switching inductive loads. * **Full Inox Construction:** Unlike standard sensors with plastic faces, the electronic coil is encased behind a solid piece of stainless steel. It uses the **Factor 1** principle, allowing it to detect both ferrous (iron) and non-ferrous (aluminum, copper) metals at the same distance. --- ### 3. Wiring Diagram (M12 Connector) The device typically follows the standard industrial color coding for 4-pin M12 connectors: ```text Pin 1: Brown (+) -> 10 to 30 VDC Pin 2: White -> Not Connected (usually) Pin 3: Blue (-) -> 0V (Ground) Pin 4: Black (OUT) -> PNP Output Signal ``` --- ### 4. Key Applications Due to its **IP69K** rating and stainless steel body, the M2AC-A30-R/Q is electronically and mechanically suited for: 1. **Food & Beverage:** Resistant to high-pressure washdowns and chemicals. 2. **Machine Tools:** Resistant to metal chips, oils, and coolants. 3. **Marine/Offshore:** High resistance to saltwater corrosion.