FA 500 - Dew Point Sensor with Display and Alarm Relay

FA 500 - Dew Point Sensor with Display and Alarm Relay

The FA 500 is the ideal dew point sensor for refrigeration, membrane, and absorption dryers. It also features alarm relays.

Special features: 

• NEW: Modbus RTU Interface 
• NEW: Higher sensor signal resolution due to improved evaluation electronics 
• NEW: In-field sensor self-diagnosis with a portable device or service software 
• Integrated display 
• Adjustable threshold value for the alarm relay via keypad (max. 60 V DC, 0.5 A) 
• Maximum pressure up to 350 bar (special version)
• Extremely long-term stability 
• Fast response time Analog output 4...20 mA 
• Two versions available: for Refrigeration dryers and desiccant dryers

FA 500 - Dew Point Sensor with Display and Alarm Relay 

Easy operation via keypad and display 

• The integrated display shows the dew point in large numbers visible from a distance, and alternately displays other humidity parameters. The keys allow navigation between the display pages. 
• The alarm threshold value for the built-in relay can be input via the keys. Besides the alarm, the hysteresis can also be configured freely. 
• The 4...20 mA analog output is freely scalable. An additional parameter, such as g/m³, can also be assigned. 
• If specified in the order, the sensor can count down from the measured dew point to the atmospheric dew point. 

Read via Modbus: 

• Pressure dew point [°Ctd] 
• Temperature [°C] 
• Relative humidity [%RH] 
• Absolute humidity [g/m³] 
• Humidity ratio [g/m³] 
• Volume/volume humidity [%V/V] 
• Water vapor particle pressure [hPa] 
• Atmospheric dew point [°Ctd.atm]