Robust IP67 Industrial Housing
The waterproof die-cast aluminum housing ensures reliable operation even in demanding industrial and outdoor environments.
CS Instruments - FA 550
Robust dew point sensor for compressed air and industrial gases, suitable for demanding environments, high pressures, and outdoor installation.
| Dew Point Measuring Range: Up to −80 … +50 °Ctd (depending on version) |
| Accuracy: ±1 … ±3 °C (depending on range) |
| Outputs: 4–20 mA, alarm relay, Modbus RTU |
| Communication (Optional): Ethernet / Modbus TCP, PoE |
| Maximum Pressure: Up to 500 bar (optional) |
| Protection: IP67, aluminum housing |
| Dew Point Measuring Range: Up to −80 … +50 °Ctd (depending on version) |
| Accuracy: ±1 … ±3 °C (depending on range) |
| Outputs: 4–20 mA, alarm relay, Modbus RTU |
| Communication (Optional): Ethernet / Modbus TCP, PoE |
| Maximum Pressure: Up to 500 bar (optional) |
| Protection: IP67, aluminum housing |
- Standard FA 550 VersionIndustrial dew point sensor housed in a robust die-cast aluminum IP67 enclosure, featuring an integrated display, 4–20 mA analog output, alarm relay, and Modbus RTU communication.
| Parameter | FA 550 |
|---|---|
| Device | Dew point / humidity sensor |
| Measuring Range | −80…+20 °Ctd, −60…+30 °Ctd, −20…+50 °Ctd, or 0…100 %RH |
| Accuracy | ±1 °C (+50…−20 °Ctd); ±2 °C (−20…−50 °Ctd); ±3 °C (−50…−80 °Ctd) |
| Pressure Range [bar] | −1…50; special versions up to 350 or 500 |
| Power Supply [VDC] | 24 (10…36) |
| Protection Class | IP67 |
| EMC | According to DIN EN 61326-1 |
| Operating Temperature [°C] | −20…+50 |
| Outputs (Standard) | Modbus RTU (RS-485), active 4–20 mA output (non-isolated), alarm relay (max. 48 VDC, 0.5 A) |
| Output / Bus Options | 2× 4–20 mA (galvanically isolated), Ethernet (Modbus TCP), Ethernet PoE, M-Bus; optional 2–10 V |
| Load (Burden) | < 500 Ω |
| Housing Material | Die-cast aluminum |
| Process Thread | Stainless steel 1.4404; G 1/2", optional UNF 5/8" or 1/2" NPT |
| Display | B1: with integrated display; B2: without display |
| Sensor Protection Cap | F1: sintered stainless-steel cap (~50 μm); F2: perforated stainless-steel cap |
| Surface Finish / Cleaning | Standard; optional oil- and grease-free cleaning (e.g. for oxygen service) or silicone-free version |
| Parameters Available via Modbus | Pressure dew point, temperature, RH, absolute humidity (g/m³), moisture content (g/kg), ppmV/V, water vapor partial pressure (hPa), atmospheric dew point |
Why Choose the FA 550?
Accurate Dew Point and Humidity Measurement
Measures pressure dew point, temperature, relative humidity, absolute humidity, and moisture content in ppm – all in one device.
Fast Response and Long-Term Stability
A very fast sensor response combined with excellent long-term stability ensures reliable monitoring of compressed air and gas quality.
Industrial Outputs and Alarms
Standard 4–20 mA analog output and alarm relay with configurable threshold and hysteresis for direct integration into control systems.
Modbus and Ethernet Communication
Support for Modbus RTU and optional Modbus TCP / Ethernet enables seamless integration into SCADA, PLC, and energy monitoring systems.
Suitable for High-Pressure Applications
Versions are available for pressure systems up to 350 bar or even 500 bar, making it ideal for industrial gases and demanding applications.
Clear Display and Easy Operation
The integrated display shows dew point in large digits and additional parameters across multiple display pages, with operation via push buttons.
Wide Range of Applications
Suitable for dew point monitoring downstream of dryers as well as for gases such as nitrogen, oxygen, hydrogen, argon, natural gas, and biogas.
General Industry
Compressed AirContinuous dew point monitoring for stable dryer operation and prevention of condensation within the compressed air network.
Plastics / PET
Air QualityMonitoring compressed air dryness for reliable pneumatic operation and stable processes in plastics and PET production.
Food Industry
Process SafetyDew point monitoring to reduce moisture-related risks in processes and support quality requirements in food production.
Pharmaceutical Industry
Validation / MonitoringAccurate dew point monitoring for dry, repeatable conditions and improved traceability in critical production environments.
Medical Industry
System ReliabilityMonitoring compressed air dryness to ensure reliable operation of systems where air quality is critical.
Energy Industry
OperationsDew point monitoring to prevent moisture in instrument air systems and improve equipment reliability.
Measuring devices
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Where to find us
DirectionsPod lipami 4 · 1370 Logatec, Slovenija
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Choose the right dew point sensor or meter for monitoring residual moisture in compressed air and technical gases. The portfolio includes fixed-installation probes, ATEX versions, and portable service instruments.
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FA 550
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FA 515 Ex
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FA 505
OEMNew-generation dew point sensor for measuring residual moisture in compressed air and gases.
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DP 500
Portable MeterPortable dew point meter with integrated data logger for precise service measurements of dryers down to −80 °Ctd.
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DP 510
Additional InputAll DP 500 functions with an additional free sensor input.
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DP 400 mobile
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