Field Instruments

Product Overview

The Festo SFAH-0.1U-G18FS-PNLK-PNVBA-M8 is a compact, high-accuracy flow sensor designed for precise monitoring of ultra-low air and nitrogen flow rates in pneumatic and automation systems. Using thermal mass flow technology, this bidirectional sensor provides stable and reliable flow measurements for applications requiring sensitivity, efficiency, and diagnostic capability.

Equipped with a two-colour illuminated display, dual switch outputs, analogue output, and IO-Link® communication, this sensor offers flexible integration into both conventional and smart industrial networks. Its lightweight and durable design makes it ideal for machine panels, leak testing, and energy management systems.

Key Features

• Ultra-Low Flow Measurement: Measures from 0.002 L/min to 0.1 L/min, ideal for micro-flow and precision pneumatic applications.
• Bidirectional Flow Detection: Monitors flow in both directions for flexible system layouts.
• Dual Output Configuration:
  • Two switch outputs (PNP/NPN)
  • One analogue output (0–10 V, 4–20 mA, or 1–5 V selectable)
• IO-Link® Communication (V1.1): Enables remote parameterization, condition monitoring, and digital diagnostics.
• High Accuracy & Repeatability: ±(2 % of measured value + 1 % FS) accuracy with <0.8 % FS repeatability.
• Two-Colour LCD Display: Clear visibility of flow readings, units, and alarm status.
• Compact & Lightweight: Only 90 g with G1/8 female connection — ideal for panel mounting or machine integration.
• Robust Construction: Reinforced PA housing, stainless-steel internal parts, and silicone seals ensure durability.
• IO-Link Smart Sensor Profile: Provides extended diagnostic and data communication capabilities.
• Cleanroom Suitable: Meets ISO 14644-1 Class 4 standards for contamination-sensitive environments.

Technical Specifications

• Manufacturer: Festo SE & Co. KG
• Model: SFAH-0.1U-G18FS-PNLK-PNVBA-M8
• Part Number: 8158411
• Measured Variable: Mass / Volumetric flow rate
• Measuring Principle: Thermal (heat transfer)
• Flow Range: 0.002 L/min to 0.1 L/min
• Flow Direction: Bidirectional
• Operating Pressure: –0.9 bar to 10 bar
• Media: Compressed air (ISO 8573-1 [6:4:4]) / Nitrogen
• Media Temperature: 0 °C to 50 °C
• Ambient Temperature: 0 °C to 50 °C
• Accuracy: ± (2 % of measured value + 1 % FS)
• Repeatability: ± 0.2 % FS (zero), ± 0.8 % FS (span)
• Temperature Coefficient: 0.15 % FS/K
• Pressure Influence: 1 % FS/bar
• Outputs:
  • 2 × Switching outputs (PNP/NPN selectable)
  • 1 × Analogue output (0–10 V / 4–20 mA / 1–5 V)
• Communication: IO-Link® V1.1 / COM2 (38.4 kBd)
• Electrical Connection: M8×1 A-coded plug (4-pin)
• Operating Voltage: 22–26 V DC
• Current Consumption: ≤ 25 mA
• Display: Two-colour illuminated LCD (red/green)
• Pneumatic Connection: G1/8 female thread (straight outlet)
• Housing Material: Reinforced PA (Polyamide)
• Wetted Materials: Silicone, Silicon Nitride, Stainless Steel (1.4301)
• Protection Class: IP40
• Corrosion Resistance Class (CRC): 2 (Moderate)
• Pressure Drop: < 5 mbar
• Cleanroom Suitability: Class 4 (ISO 14644-1)
• Weight: Approx. 90 g
• Approvals: CE, UKCA, UL Listed, RCM, RoHS compliant

Applications

• Leak detection in compressed-air or nitrogen systems.
• Micro-flow monitoring in laboratory and semiconductor processes.
• Pneumatic circuit diagnostics for industrial automation.
• Air consumption measurement for energy-saving programs.
• Predictive maintenance in production systems.
• Cleanroom process monitoring and controlled environments.

Why Buy from FieldInstruments.lk?

At FieldInstruments.lk, Sri Lanka’s trusted provider of Festo industrial sensors and automation components, we ensure genuine products, expert support, and reliable after-sales service.

Our Advantages:

• 100% genuine Festo components with manufacturer warranty
• Competitive pricing and fast delivery throughout Sri Lanka
• Local engineering support and integration assistance
• Professional after-sales service and calibration support

The Festo SFAH-0.1U-G18FS-PNLK-PNVBA-M8 delivers exceptional precision, durability, and connectivity — the perfect solution for modern pneumatic systems requiring reliable low-flow measurement and smart data communication.

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Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk