FA 500 - Dew point sensor with integrated display and alarm relay

The FA 500 is the right choice for maximum precision in Dew point measurements. Our sensor offers a wide range of Measuring ranges that are perfectly matched to the needs of different compressed air dryers. Rely on us for accurate results in every situation.

Monitoring a compressed air dryer is crucial to increase Energy efficiency, ensure product quality, prevent damage to machines, identify maintenance needs and realise cost savings. This contributes to the smooth functioning of compressed air systems in various Industrial applications.

  • Multiple display pages to show the Dew point and other measured variables such as relative Humidity and Temperature
  • Set alarm limit values for the relay, set the hysteresis
  • Scaling of the Analogue output 04...20 mA, switching to other measured variables
  • Input of the system pressure and the reference pressure for Calculation of reference dew points, e.g. Atmospheric dew point
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Details

  • Ideal for all types of compressed air dryers with different Measuring ranges such as -80...+20°Ctd; -60...+30°Ctd; -20...+50°Ctd
  • Condensation-resistant sensor element
  • Pressure resistant up to 500 bar (special version)
  • Long-term stability and drift-resistant, therefore optimised calibration intervals
  • Measuring independent of gases, also suitable for other, non-corrosive gases
  • Fast adjustment time, especially in the event of moisture ingress
  • BSP or NPT thread
  • Protection class IP 65
  • Analogue output 4...20 mA and Modbus RTU (RS 485) interface, contact relay with limit value adjustable via buttons (max. 60 VDC, 0.5A)
  • Optional: Modbus TCP (Ethernet), Modbus TCP PoE (Ethernet) or M-Bus interface
  • Measured values available in various units, Pressure dew point [°Ctd], Temperature [°C], Rel. humidity [%rh], Abs. humidity [g/m³], Degree of humidity [g/kg], Humidity fraction V/V [ppmV/V], Water vapour partial pressure [hPa], Atmospheric dew point [°Ctd.atm]
  • Sensor diagnostics on site with Handheld device or CS Service Software

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Accessories

Standard measuring chamber

For compressed air up to 16 bar

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High-pressure measuring chamber up to 350 bar

Measuring the Dew point in high-pressure systems such as diving applications, breathing protection for fire brigades, etc.

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Control and calibration set for dew point sensors

is screwed onto the Dew point sensor and thus provides a simple and inexpensive control and adjustment option.

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Stainless steel Bypass measuring chamber up to 500 bar

For Dew point monitoring in Gases and Compressed air (Stainless steel: 1.4305)

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