The **E5GN-R2BTD** is a compact, digital temperature controller manufactured by Omron. It belongs to the E5GN series, which is known for its space-saving 1/32 DIN size. Below is a detailed breakdown of its electronic specifications and technical features. ### 1. Key Technical Specifications | Feature | Specification Details | | :--- | :--- | | **Size / Form Factor** | 1/32 DIN (48 x 24 mm) | | **Power Supply Voltage** | 24 VAC (50/60 Hz) / 24 VDC | | **Input Type** | Multi-input (Thermocouples, RTDs, Non-contact temp sensors) | | **Control Output** | **Relay Output** (SPST-NO, 250 VAC, 2 A) | | **Auxiliary Outputs** | 2 Alarm Outputs (Relays) | | **Control Method** | ON/OFF or 2-PID control (with auto-tuning) | | **Terminal Type** | Screw terminals (Rear mounted) | --- ### 2. Breakdown of the Model Code To understand the electronic capabilities, we can decode the part number **E5GN-R2BTD**: * **E5GN:** The series designation (1/32 DIN size). * **R:** Indicates a **Relay Output**. This is used for switching the load (heater/cooler) directly or through a larger contactor. * **2:** Indicates **2 Auxiliary Outputs**. These are typically used for high/low temperature alarms. * **B:** Indicates **Event Inputs**. This allows the controller to trigger internal functions (like changing setpoints) based on external electrical signals. * **T:** Indicates the presence of a **Transfer Output** or specific internal configuration (depending on the revision). * **D:** Indicates **24 VAC/VDC** power supply (Low voltage). *Note: Models without 'D' usually run on 100-240 VAC.* --- ### 3. Electronic Input & Output Details #### **Sensor Inputs** The E5GN is versatile and supports various electronic sensors: * **Thermocouples:** K, J, T, E, L, U, N, R, S, B, W, or PL II. * **Platinum Resistance Thermometers (RTD):** Pt100 or JPt100. * **Infrared Sensors:** ES1B (10 to 70°C, 60 to 120°C, 115 to 165°C, 140 to 260°C). #### **Control Output (Relay)** * **Contact Type:** SPST-NO (Single Pole Single Throw, Normally Open). * **Capacity:** 250 VAC, 2 A (resistive load). * **Electrical Life:** 100,000 operations minimum. #### **Advanced Electronic Features** * **PID Control:** Uses a sophisticated Proportional-Integral-Derivative algorithm to minimize overshoot and stabilize temperature. * **High-Intensity Display:** Uses an 11-segment LCD display that is easy to read even in low-light industrial environments. * **IP66 Rating:** The front panel is electronically sealed against dust and water splashes. --- ### 4. Wiring Diagram Overview (Logic) When wiring the E5GN-R2BTD, the electronic terminals are generally assigned as follows: ```text Terminals 1-2: Power Input (24V AC/DC) Terminals 3-5: Control Output (Relay) Terminals 7-9: Input Sensor (Thermocouple/RTD) Terminals 10-12: Auxiliary Outputs (Alarms) ```