The **RTS-1DC-R** is a specific electronic component, typically categorized as a **Remote Temperature Sensor** designed for use with solar charge controllers (often compatible with EPEVER/EPSolar products). It plays a crucial role in battery management systems by providing real-time thermal data to the controller. --- ## 1. Technical Specifications The following table summarizes the core electronic and physical characteristics of the RTS-1DC-R: | Feature | Specification | | :--- | :--- | | **Component Type** | Thermistor-based Remote Temperature Sensor | | **Model** | RTS-1DC-R | | **Connector Type** | 3.81mm / 2-pin Terminal (or RJ11 depending on version) | | **Cable Length** | Usually 3 meters (approx. 9.8 ft) | | **Testing Resistance** | 10KΩ (at 25°C) | | **Accuracy** | ±1°C | | **Operating Temperature** | -55°C to +125°C | --- ## 2. Key Electronic Functions The RTS-1DC-R serves several vital electronic functions within a power system: ### A. Temperature Compensation Lead-acid batteries require different charging voltages based on their temperature. * **Cold environments:** The controller increases the charge voltage to ensure a full charge. * **Hot environments:** The controller decreases the charge voltage to prevent outgassing and "thermal runaway." ### B. Signal Transmission The part uses a **Negative Temperature Coefficient (NTC)** thermistor. As the temperature rises, the electrical resistance of the sensor decreases. The solar charge controller measures this resistance change and converts it into a digital temperature reading. ### C. Safety Cut-off If the battery reaches a dangerous temperature threshold, the sensor sends the data required for the controller to shut down the charging process entirely, protecting the battery from permanent damage or fire. --- ## 3. Installation & Connectivity To integrate this part into an electronic circuit: 1. **Placement:** The sensor probe must be attached directly to the battery casing (often secured with thermal tape or placed near the terminal). 2. **Wiring:** The two-wire lead is polarity-independent in most NTC applications, meaning the orientation in the terminal block usually does not matter. 3. **Controller Setup:** Once plugged in, most controllers automatically switch from "Internal Temp" to "Remote Temp" sensing. ---