IFM SM0527 Liquid Flow Sensor with IP65 / IP67 protection rating

Description

The IFM SM0527 is an industrial liquid flow sensor designed to monitor and control flow in automation systems. It is commonly used in cooling circuits, water systems, and machine protection applications.

The sensor operates using thermal or vortex measuring principles (depending on variant) and provides reliable detection of flow rates along with switching outputs for PLC integration. It is built with robust stainless steel wetted parts, making it suitable for harsh industrial environments.

Key Features

• Accurate flow monitoring for liquids (water, cooling water, DI water)
• High-pressure capability for industrial use
• Switching output (PNP/NPN configurable)
• Optional IO-Link communication for smart integration
• LED / digital display for real-time status indication
• Adjustable switch point via potentiometer or software
• Compact threaded design for easy installation
• Reverse polarity & short-circuit protection
• Rugged housing with IP65 / IP67 protection rating

Technical Specifications:

 Measuring Range:

• Flow velocity: 3 … 300 cm/s (thermal type)
• Flow rate: 1 … 20 L/min (vortex type)

 Temperature Range:

• Medium temperature:
  • -25°C to +80°C (thermal version)
  • -10°C to +90°C (vortex version)
• Ambient temperature: up to 60–80°C

 Electrical Data:

• Supply voltage: 18–36 V DC
• Current consumption: < 30–45 mA
• Output type:
  • Digital switching output
  • Frequency / IO-Link (advanced models)
• Output current: up to 100–400 mA

 Mechanical Data:

• Process connection:
  • G1/4 thread (thermal type)
  • 1/2″ NPT thread (vortex type)
• Wetted materials: Stainless steel (316 / 316L)
• Protection rating: IP65 / IP67

 Pressure Rating:

• Up to 300 bar (thermal type)
• Around 12 bar (vortex type)

 Outputs & Interface:

• 1–2 digital outputs (configurable)
• PNP/NPN switching
• IO-Link (smart communication)
• Frequency output (selectable)

 Response Time:

• Approx. 1 to 10 seconds (thermal type)
• ~1 second (vortex type)

 Applications:

• Cooling water monitoring systems
• Pump dry-run protection
• Industrial automation & machine tools
• Water treatment & filtration systems
• Process industries

 Summary:

The IFM SM0527 flow sensor is a:

• Reliable and rugged industrial flow monitoring device
• Suitable for liquid applications under high pressure
• Easy to integrate with PLCs using switching outputs or IO-Link
• Ideal for automation, cooling systems, and process control