SF82 Dew-Point Transmitter for Compressed Air

SF82 Dew-Point Transmitter for Compressed Air

Simple to install and maintain, the SF82 is a fast response moisture meter measuring dew point and moisture content and is available with a range of process connections and electrical connectors. All SF82 dew-point transmitters are available with a service exchange program which reduces the cost of maintenance. Michell’s Advanced Thick Film Moisture Sensor technology based Hygrometers are calibrated to international standards and are delivered with a traceable calibration certificate.

Product Features

• Dew point or ppmV moisture content output
• Accuracy ±2 °C dew point
• Modbus RTU over RS485 digital communication 4 to 20 mA 2 wire
• Traceable 9 point calibration certificate
• Power supply 5 to 28 V DC
• Ultra fast response to moisture change
• Low cost of ownership and easy maintenance with
• sensor exchange program
• 316 stainless steel sensor and sample blocks
• 5/8” UNF, 3/4” UNF, G 1/2” process connections
• MiniDIN 43650 C, M12 electrical connectors

Applications

• Refrigeration dryers
• Membrane dryers
• Adsorption dryers
• Medical and surgical air
• Breathing air
• Additive manufacturing
• Plastic injection moulding
  
  

3D CAD files

• SF82 5/8 UNF
• SF82 3/4 UNF
• SF82 5/8 UNF
• SF82 3/4 UNF
• SF82 G1/2
  
  

  Technical Specifications

  
  

  	SF82 MiniDIN 43650 C	SF82 M12
  Performance Specifications
  Measurement Range	-60 °C to +60 °C dew point
  Accuracy	±2 °C dew point*
  Response Time	63% at room temperature at 1 bara -60 °C to -20 °C dew point: 6 s -20 °C to -60 °C dew point: 40 s
  Repeatability	0.5°C dew point
  Calibration	9 point calibration certificate traceable to national standards
  Electrical Specifications
  Output Signal	User configurable over range; 4-20 mA (2 wire connection, current source)	User configurable over range; 4-20 mA (2 wire connection, current source) Modbus RTU over RS485 digital communications
  Moisture Output	Dew point or moisture content
  Temperature Output	Not available	Data via Modbus RTU
  Analog Output Scaled Range 4-20 mA (Dew point)	-60 °C to +60 °C dew point -50 °C to +50 °C dew point -50 °C to +30 °C dew point -80 °C to +20 °C dew point -20 °C to +50 °C dew point (Non standard ranges available on request)
  Analog Output Scaled Range 4-20 mA (moisture content in gas)	0 to 24000 ppmv (Non standard ranges available on request)
  Supply Voltage	6.5 to 28 V DC	5 to 28 V DC
  Load Resistance	Max 250 Ω @ 12 V (500 Ω @ 24 V)
  Current Consumption	23 mA max	Analog only 23 mA max, Digital only 6 mA max
  Electrical Safety	IEC61010-1, UL61010-1 & CAN/CSA C22.2 No. 61010	IEC61010-1, UL61010-1 & CAN/CSA C22.2 No. 61010 EN61373 Rail Rolling Stock EN50121-3-2 Rail EMC/RFI
  Operating Specifications
  Operating Temperature	-20 °C to +60 °C
  Compensated Temperature Range	-20 °C to +50 °C
  Storage Temperature	-40 °C to +60 °C
  Maximum Operating Pressure	10 MPag (100 barg) maximum
  Pressure Safety Rating	45 MPag (450 barg) maximum
  Flow Rate	1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
  Mechanical Specifications
  Ingress Protection	IP66 in accordance with BS EN 60529 (current version); NEMA 4 ingress protection in accordance with NEMA 250 (current version)	IP65
  Housing Material	316 stainless steel
  Dimensions	L = 133 mm x ø45 mm (with connector cable)	L = 156 mm x ø45 mm (with connector cable)L = 133 mm x ø45 mm (with connector cable)
  Filter (Sensor Protection)	Standard: HMWPE <10 μm Optional: 316 stainless steel sintered guard <80 μm
  Process Connection	5/8” 18 UNF 3/4” 16 UNF G1/2” BSP
  Weight	150 g (excluding connector cable)
  Electrical Connections	MiniDIN 43650 form C	M12 5 pin (A coded)
  Mating Electrical Connections	Mating connector supplied as standard Optional 0.8, 2, 5, 10 metre MiniDIN connector/cable available	Optional 0.8 , 2, 5, 10 meter M12 A coded connector/cable available
  Analog Output Diagnostic Conditions (factory programmed)	Sensor fault: 23 mA Under-range dew point: mA Over-range dew point: mA
  NOTES * Over Compensated Temperature Range