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All Categories > Dew Point > FA 550 Dew Point Sensors > Item # 0699 0550  
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Item # 0699 0550, FA 550 Dew Point Sensor
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FA 550 dew point sensor - in robust die-cast aluminum housing
The FA 550 is ideal for outdoor dew point measurements or rougher industrial environment




Financing  · Specifications  · Applications  · Special Features  · Easy Operation Via Keys on Display

Financing

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Specifications

Measuring Range (Atmospheric Pressure)
-112 to 68 ºF
-4 to 122 ºF
-76 to 86 ºF

Relative Humidity
100 %

Accuracy (±) at 122 to -4 Degree Fahrenheit (ºF) Temperature
1.8 ºF

Accuracy (±) at -4 to -58 Degree Fahrenheit (ºF) Temperature (Atmospheric Pressure)
3.6 ºF

Accuracy (±) at -58 to -112 Degree Fahrenheit (ºF) Temperature (Atmospheric Pressure)
5.4 ºF

Pressure Range
-14.5 to 725 psi

Pressure Range (Special Version)
5076 psi
7251 psi

Direct Current (DC) Voltage
10 to 36 V
24 V

Protection Class
IP 67

Electromagnetic Compatibility (EMC)
In According with DIN EN 61326-1

Output
Standard: Modbus-RTU, 4…20 mA active (not electrically isolated), alarm relay (maximum 48 VDC, 0.5 A)

Burden
<500 Ω

Material
Die-Cast Aluminum Housing
Sensor Tube Stainless Steel 1.4571

Screw-In Thread
G 1/2 in.

Optional Screw-In Thread
1/2 in. National Pipe Thread (NPT)
5/8 in. Unified National Fine (UNF)


Applications
  • Dew point measurement in the compressed air after adsorption dryers/membrane dryers and refrigeration dryers
  • Residual moisture measurement / dew point measurement in gases such as: oxygen, nitrogen, argon, hydrogen, natural gas, biogas


Special Features
  • Robust, waterproof die-cast aluminum housing, IP 67
  • Alarm relay - limit value adjustable via buttons (max 60 VDC, 0.5 A)
  • 4...20 mA analog output
  • Optional: 2 pieces 4 ... 20 mA analog output e.g. for dew point and temperature
  • Extremely stable in the long term
  • Quick adaption time
  • Pressure-resistant up to 7251 psi (optional)
  • NEW: Modbus-RTU interface
  • NEW: Ethernet interface (optional)
  • NEW: Higher resolution of sensor signal due to the improved evaluation electronics
  • NEW: Sensor diagnosis on site with a portable device or CS Service Software
  • Readable via Modbus: pressure dew point [ºCtd.], temperature [ºC], rel. humidity [% RH], abs. humidity [g/m³], degree of humidity [g/kg], moisture content V/V [ppm- V/V], partial vapor pressure [hPa], atmospheric dew point [ºCtd.atm]


Easy Operation Via Keys on Display
The integrated display shows the dew point in big figures as well as further humidity parameters on two more display pages. The arrow key can be used to scroll between the display pages.

The alarm threshold value for the integrated relay can be freely entered via the keys. In addition to the alarm threshold, the hysteresis can also be freely entered.

The 4 to 20 mA analog output can be scaled freely or also allocated to one further parameter, e. g. g/m³.

After entering the system pressure of the compressed air system and the reference pressure (atmospheric pressure), the sensor can also calculate back to the atmospheric dew point from the measured pressure dew point if desired.


 DOWNLOADS 

Datasheet for FA 550 Dew Point Sensors
(PDF, 454KB)


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