SF82 Dew-Point Transmitter for Compressed Air



Dew-Point Accessories

Compressed Air Related Products
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.
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

    Dew-point measurements for:
  • Refrigeration dryers
  • Membrane dryers
  • Adsorption dryers
  • Medical and surgical air
  • Breathing air
  • Additive manufacturing
  • Plastic injection moulding




3D CAD files (Step)

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

  • Download now




Easidew Transmitter Series

Technical Specifications

SF82 MiniDIN 43650 CSF82 M12
Performance Specifications
Measurement Range-60 °C to +60 °C dew point
Accuracy±2 °C dew point*
Response Time63% at room temperature at 1 bara
-60 °C to -20 °C dew point: 6 s
-20 °C to -60 °C dew point: 40 s
Repeatability0.5°C dew point
Calibration9 point calibration certificate traceable to national standards
Electrical Specifications
Output SignalUser 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 OutputDew point or moisture content
Temperature OutputNot availableData 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 Voltage6.5 to 28 V DC5 to 28 V DC
Load ResistanceMax 250 Ω @ 12 V (500 Ω @ 24 V)
Current Consumption23 mA maxAnalog only 23 mA max, Digital only 6 mA max
Electrical SafetyIEC61010-1, UL61010-1 & CAN/CSA C22.2 No. 61010IEC61010-1, 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 Pressure10 MPag (100 barg) maximum
Pressure Safety Rating45 MPag (450 barg) maximum
Flow Rate1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress ProtectionIP66 in accordance with BS EN 60529
(current version);
NEMA 4 ingress protection in accordance with
NEMA 250 (current version)
IP65
Housing Material316 stainless steel
DimensionsL = 133 mm x ø45 mm (with connector cable)L = 156 mm x ø45 mm (with connector cable)
Filter (Sensor Protection)Standard: HMWPE <10 μm Optional: 316 stainless steel sintered guard <80 μm
Process Connection5/8” 18 UNF
3/4” 16 UNF
G1/2” BSP
Weight150 g (excluding connector cable)
Electrical ConnectionsMiniDIN 43650 form CM12 5 pin (A coded)
Mating Electrical ConnectionsMating 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

Applications

Compressed Gas 

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