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Product Detail
SF82 Dew-Point Transmitter

SF82 Dew-Point Transmitter

Product Detail
Dew-Point Transmitter for Compressed Air Dryers - SF82Fast Response Moisture Meter with Multiple Process Connections.


Features

  • Dew point or ppmV moisture content output

  • Accuracy ±2 °C (±3.6 °F) dew point

  • MiniDIN 43650 C, M12 electrical connectors

  • Traceable 9-point calibration certificate

  • Modbus RTU over RS485 digital communication

  • 4...20 mA 2 wire

  • Power supply 5...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

  • KF40 Glove Box flange

The SF82 is a fast-responding moisture sensor for control of dew-point and moisture content in compressed air dryers to maximize energy efficiency. Compressor rooms are often hot with temperatures reaching +50 °C (+122 °F). The SF82 is capable of reliably providing fast, accurate dew-point measurements down to -60 °C (-76 °F) dew point even in these challenging conditions.

The SF82 industrial transmitter incorporates the latest Process Sensing Technologies advanced thick-film polymer moisture sensing technology to provide fast, stable and repeatable humidity measurements for all dew-point dryer applications.

It is available with a range of process connections and electrical connectors for easy installation. SF82 dew-point transmitters are included in our service exchange program which reduces both downtime and the cost of maintenance.


Suitable Applications

  • Dew-point measurements for:

  • Refrigeration dryers

  • Membrane dryers

  • Adsorption dryers

  • Medical and surgical air

  • Breathing air

  • Additive manufacturing

  • Plastic injection moulding

Specification

SF82 MiniDIN 43650 CSF82 M12
Performance Specifications
Measurement Range-60 °C...+60 °C (-76 °F...+140 °F) dew point
Accuracy±2 °C (±3.6 °F) dew point*
Response Time63% at room temperature at 1 bara (14.5 psia)
-60 °C...-20 °C (-76 °F...-4 °F) dew point: 6 s
-20 °C...-60 °C (-4 °F...-76 °F) dew point: 40 s
Repeatability0.5°C (32.9 °F) 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...+60 °C (-76 °F...+140 °F) dew point
-50 °C...+50 °C (-58 °F...+122 °F) dew point
-50 °C...+30 °C (-58 °F...+86 °F) dew point
-80 °C...+20 °C (-112 °F...+68 °F) dew point
-20 °C...+50 °C (-4 °F...+122 °F) dew point
(Non standard ranges available on request)
Analog Output Scaled Range
4...20 mA (moisture content in gas)
0...24000 ppmv
(Non standard ranges available on request)
Supply Voltage6.5...28 V DC5...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
EN50121-3-2:2016 Rail EMC/RFI
Operating Specifications
Operating Temperature-20 °C...+60 °C (-4 °F...+140 °F)
Compensated Temperature Range-20 °C...+50 °C (-4 °F...+122 °F)
Storage Temperature-40 °C...+60 °C (-40 °F...+140 °F)
Maximum Operating Pressure10 MPag (100 barg/1450.38 psig) maximum
Pressure Safety Rating45 MPag (450 barg/6526.7 psig) maximum
Flow Rate1...5 Nl/min mounted in standard sampling block; 0...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 (5.24” x ø1.77”) (with connector cable)L = 156 mm x ø45 mm (6.14” x ø1.77”) (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
KF40 Flange AccessoriesFlange for 5/8” 18 UNF & 3/4” 16 UNF process connections
Weight150 g (5.29 oz) (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 (2.62, 6.56, 16.4, 32.81 foot) 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