CS Instruments FA 550 Dew Point Sensor - Robust Die-Cast Aluminum Housing

Description

The CS Instruments FA 550 sets a new benchmark for reliability in challenging conditions. Unlike standard sensors that require protective covers or indoor environments, the FA 550 is built into a robust die-cast aluminum housing that effectively shields the electronics from dust, moisture, and mechanical impact. This makes it the ideal choice for outdoor installation or industrial plants with high humidity and wash-down requirements.

Beyond its rugged exterior, the FA 550 is a powerhouse of connectivity and precision. It features an integrated display for on-site monitoring and configuration, allowing users to set alarm limits directly via buttons. The sensor supports modern industrial communication standards, offering a 4…20 mA analogue output alongside a Modbus-RTU interface (RS 485), with an optional Ethernet interface for seamless integration into IIoT systems.

Whether you are monitoring the efficiency of adsorption dryers or ensuring the purity of technical gases like Oxygen and Nitrogen, the FA 550 delivers consistent accuracy. Its sensor element is condensation-insensitive and provides fast adaptation times, ensuring you catch moisture spikes before they damage your equipment or compromise product quality.

Brand

CS Instruments

CS Instruments GmbH & Co. KG with locations in 24955 Harrislee and 78052 Villingen-Schwenningen/ Tannheim, is managed by Dipl. Eng. (FH) Wolfgang Blessing as sole Managing Director.

CS Instruments GmbH was established in the year 2002 by Christian Schuldt and Wolfgang Blessing as equal shareholders/Managing Directors.

Wolfgang Blessing already was sound a specialist on the sector of compressed air technology resp. industrial measurement technology long before the establishment of CS Instruments GmbH in the year 2002. Prior to the foundation of CS Instruments GmbH Dipl. Ing. (FH) Wolfgang Blessing acted for more than 10 years as primarily responsible product manager for industrial measurement technology at a worldwide known manufacturer of measuring instruments for compressed air and gases in the Black Forest. The technical knowledge and experience matched with the long-term practical knowledge was the corner stone for the success of CS Instruments.

Specifications

Measuring range: -80…20 °Ctd, -60…30 °Ctd,
-20…50 °Ctd, or
0…100% RH
Accuracy: ± 1 °C at +50…-20 °Ctd
± 2 °C at -20…-50 °Ctd
± 3 °C at -50…-80 °Ctd
Pressure range: -1…50 bar,
Special version up to
350 bar or 500 bar
Power supply: 24 VDC (10…36 VDC)
Protection class: IP 67
EMC: In acc. with DIN EN 61326-1
Operating temperature:
-20…50 °C
Outputs: Standard:
Modbus-RTU, 4…20 mA
active (not electrically
isolated),
alarm relay (max. 48 VDC,
0.5 A)
Options: See order code
Burden: < 500 Ω
Material: Die-cast aluminum housing,
sensor tube stainless steel
1.4571
Screw-in thread: G 1/2”, optional 5/8″ UNF

Features

Robust Die-Cast Aluminum Housing: IP 67 rated for waterproof protection and outdoor durability.
Integrated Display: clear visualization of dew point, temperature, and alarm status directly on the unit.
Flexible Signal Outputs: Standard 4…20 mA and Modbus-RTU (RS 485), with optional Ethernet.
Configurable Alarm Relay: Integrated relay (max 60 VDC, 0.5 A) with limit values adjustable via buttons.
High Pressure Resistance: Standard version up to 50 bar, with special versions available up to 500 bar.
Long-Term Stability: Precision sensor technology that remains accurate over time, reducing calibration frequency.
Sensor Diagnosis: On-site diagnostics possible via handheld devices or service software.

Applications

The CS Instrument FA 550 is engineered for versatility across a wide range of industries and media:
Compressed Air Treatment: Monitoring downstream of adsorption, membrane, and refrigeration dryers.
Technical Gases: Residual moisture measurement in Oxygen (), Nitrogen (), Argon (), and Hydrogen ().
Energy Sector: Dew point monitoring in Natural Gas and Biogas pipelines.
Outdoor Installations: Reliable performance in exposed environments subject to weather and temperature fluctuations.
High-Pressure Systems: Suitable for breathing air and plastic injection molding applications (up to 500 bar).