The **GTB10-R3822** is a high-performance photoelectric proximity sensor from SICK’s G10 product family. It is specifically a "Background Suppression" sensor, meaning it can detect objects regardless of their color or texture while ignoring objects in the background. --- ### 1. Key Technical Specifications Below are the primary electronic and operational parameters for this model: | Feature | Specification | | :--- | :--- | | **Sensor Principle** | Photoelectric proximity sensor (Background Suppression) | | **Sensing Range** | 20 mm ... 950 mm | | **Supply Voltage** | 24 V AC/DC ... 240 V AC/DC | | **Switching Output** | Relay, SPDT (Single Pole Double Throw) | | **Switching Mode** | Light/dark switching (selectable via switch) | | **Max. Switching Current** | 0.11 A @ 250 V AC / 0.11 A @ 30 V DC | | **Response Time** | ≤ 20 ms | | **Connection Type** | Cable, 5-wire, 2 m (PVC) | --- ### 2. Internal Electronic Components The GTB10-R3822 utilizes several critical electronic systems to function: * **PinPoint LED:** Unlike standard LEDs, this uses SICK's PinPoint technology, which creates a precise, small, and intense light spot. This makes alignment easier and improves detection accuracy on dark objects. * **Relay Output:** Because this model is "Universal Voltage" (AC/DC), it uses a mechanical relay for the output. This provides potential-free (dry contact) switching, allowing it to interface with many different types of industrial controllers (PLCs) or direct loads. * **Potentiometer:** A manual analog adjustment screw on the housing allows for fine-tuning the sensing distance. * **ASIC Technology:** SICK uses specialized integrated circuits to ensure high immunity to ambient light (optical noise) and electromagnetic interference (EMI). --- ### 3. Wiring Diagram (5-Wire Configuration) The sensor uses a 5-color coded cable. The wiring logic for the relay output is typically as follows: | Wire Color | Function | Description | | :--- | :--- | :--- | | **Brown** | L1 / + | Supply Voltage (AC/DC) | | **Blue** | N / - | Supply Voltage (AC/DC) | | **White** | Relay Common | Common contact for the relay | | **Black** | Relay NO | Normally Open contact | | **Gray** | Relay NC | Normally Closed contact | --- ### 4. Protection and Durability The electronics are housed in a rugged casing designed for industrial environments: * **Enclosure Rating:** IP67 (dust-tight and water immersion resistant). * **Protection Class:** II (Reinforced insulation). * **Circuit Protection:** Overvoltage and reverse polarity protection on the power input.