Renke RS-SJ-N01-2 Industrial Water Leak Sensor - RS485 Modbus & Relay Output
The Renke RS-SJ-N01-2 is an industrial-grade water leak sensor featuring AC detection technology to prevent electrode oxidation. It provides dual RS485 Modbus-RTU and relay dry contact outputs for direct integration with PLCs, DCS systems, and industrial control panels.
Features
- Dual Output Interfaces: RS485 Modbus-RTU protocol and normally-open relay dry contact.
- Advanced AC Detection: Unique technology prevents sensitivity loss due to electrode oxidation.
- Extended Detection Range: Supports external leak electrodes or sensing ropes up to 30 meters.
- Wide Power Input: Operates from 10-30V DC, suitable for industrial 12V/24V power rails.
- Robust Environmental Rating: Operates from -20°C to +60°C at 0-80% RH (non-condensing).
Out of stock
The Renke RS-SJ-N01-2 Industrial Water Leak Sensor employs a specialized AC excitation detection principle. This method continuously alternates the polarity on the sensing electrodes, effectively preventing galvanic corrosion and oxide buildup that plagues traditional DC-based water detection probes. This ensures long-term, stable sensitivity to conductive liquids like tap water and purified water.
Designed for harsh industrial environments, the sensor outputs both a digital Modbus-RTU signal over an isolated RS485 bus and a physical relay contact. This dual-output architecture allows for seamless integration into modern SCADA systems via Modbus while providing a fail-safe, hard-wired alarm signal. The unit’s wide operating voltage and temperature range make it suitable for installation in control cabinets, underfloor spaces, and near machinery in manufacturing plants, data centers, and commercial facilities.
Additional Information
| Weight | 0.255 kg |
|---|---|
| Dimensions | 16 × 16 × 7 cm |
