The SDI 852/1 GAPP flow rate sensor is engineered for accurate monitoring of conductive liquid media in industrial automation and process control systems. Using a magnetic-inductive measuring principle, this sensor provides reliable flow measurement for water, water/glycol mixtures, and other conductive liquids. Its compact inline design, digital display, and programmable switching outputs make it ideal for industrial machinery, cooling systems, fluid handling equipment, and automated process applications.
Built for demanding environments, the sensor combines precise measurement performance with user-friendly operation, helping industries improve operational efficiency, maintain process consistency, and reduce unexpected downtime.
Key Features
- Magnetic-inductive flow measurement technology
- Designed for conductive media applications
- Measuring range from 0 to 40 l/min
- Bright red 3-digit 7-segment flow indication display
- Programmable PNP switching output
- Analog 4–20 mA output for process integration
- Simple configuration through onboard buttons
- Compact industrial housing with IP65 protection
- Stainless steel wetted components for durability
- Reliable monitoring for water and glycol systems
Application
The SDI 852/1 GAPP sensor is widely used in industrial fluid management systems where accurate liquid flow monitoring is critical. Typical applications include:
- Cooling and lubrication systems
- Water circulation units
- Industrial process automation
- Chemical dosing equipment
- HVAC fluid control systems
- Pump protection systems
- Water treatment facilities
- Machine tool coolant monitoring
The sensor helps detect insufficient flow conditions, prevents dry-running damage, and ensures stable liquid circulation in automated production systems.
Design & Functionality
This flow monitoring device operates using a magnetic-inductive measuring method, enabling accurate detection of conductive liquid flow without mechanical moving parts. The absence of moving components minimizes wear and maintenance requirements while improving long-term operational reliability.
Its integrated red LED display provides clear real-time flow indication, allowing operators to monitor system conditions instantly. Programmable PNP normally open and normally closed switching functions support flexible automation integration, while the analog 4–20 mA output enables continuous process monitoring through PLC and control systems.
The durable housing construction and stainless steel media-contact materials ensure compatibility with industrial environments requiring chemical resistance and stable performance.
Total Crossed Beams
The SDI 852/1 GAPP sensor is optimized for precise conductive liquid flow measurement in compact industrial piping systems. Its advanced sensing technology ensures stable detection performance even under fluctuating operating conditions.
Beam Pitch Options
The sensor design supports compact installation in steel tube systems according to ISO 3304 and DIN 2391 standards, enabling efficient integration into industrial pipelines with limited installation space.
Intrinsic Synchronism
The magnetic-inductive sensing system delivers stable signal processing and consistent flow monitoring performance, helping industrial automation systems maintain synchronized fluid management operations.
Operational Advantages
- Reduces equipment damage caused by dry-running
- Improves process efficiency and flow consistency
- Enables accurate real-time flow monitoring
- Simplifies industrial automation integration
- Minimizes maintenance with non-mechanical sensing
- Supports stable operation in harsh industrial environments
- Enhances production reliability and operational safety
