The SD 504 S flow rate sensor is a compact industrial monitoring solution engineered for accurate low-flow water detection in cooling circuits, melting furnaces, and precision fluid management systems. Designed for reliable operation in demanding industrial environments, this sensor delivers stable monitoring performance without obstructing the flow path. Its compact G1/4 threaded design makes it suitable for installations with limited space and small pipe diameters.
Built with a stainless steel AISI 316 Ti sensing surface and a durable glass fibre reinforced PBT housing, the SD 504 S offers long-term resistance to pressure, moisture, and industrial operating conditions. The sensor is optimized for use with amplifier series SKM and SKZ, enabling efficient integration into automated process systems.
Key Features
- Precise flow monitoring from 1 to 1000 ml/min
- Reliable operation in industrial cooling circuits
- Compact sensor design for small pipe installations
- Stainless steel sensing surface for corrosion resistance
- Robust PBT housing for demanding environments
- No protruding internal parts to reduce contamination risk
- Fast response and startup performance
- IP67 protection for industrial reliability
- Compatible with SKM and SKZ amplifier systems
Application
The SD 504 S is widely used in industrial cooling applications where accurate low-flow monitoring is critical for equipment protection and process stability. Common applications include:
- Cooling circuits with small pipe diameters
- Melting furnace cooling systems
- Water circulation monitoring
- Industrial process cooling
- Automated machinery fluid management
- Compact industrial liquid handling systems
The sensor helps prevent overheating, improves process reliability, and ensures continuous coolant circulation in sensitive industrial equipment.
Design & Functionality
The sensor features a streamlined internal structure with no components protruding into the flow path. This design minimizes pressure loss and reduces the risk of contamination buildup inside the pipeline. Its compact 67 mm body length allows easy integration into confined industrial installations.
The SD 504 S supports precise flow detection with a working range from 0.01 to 0.8 l/min and offers rapid reaction times for efficient monitoring performance. The M12 electrical connector enables straightforward industrial integration, while the 20 bar pressure resistance supports demanding operating conditions.
Total Crossed Beams
The optimized sensing structure delivers stable signal transmission for precise low-flow detection in compact cooling systems and industrial liquid circulation processes.
Beam Pitch Options
The SD 504 S is engineered for consistent monitoring accuracy across varying flow conditions, supporting stable operation in small-diameter industrial pipelines.
Intrinsic Synchronism
Designed for synchronized performance with SKM and SKZ amplifier systems, the sensor ensures dependable flow monitoring and rapid signal response in automated industrial environments.
Operational Advantages
- Enhances cooling system reliability
- Protects industrial equipment from insufficient coolant flow
- Reduces downtime caused by overheating
- Supports compact machine integration
- Improves process control efficiency
- Delivers long operational lifespan in industrial environments
