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Product Detail
Michell SF82 Online

Michell SF82 Online

Product Detail

Fast-Response Dew-Point Hygrometer - Michell SF82 Online

Quick to Install Hygrometer System

Features

  • Measurement range -60 to +60 °C dew point

  • Accuracy ±2 °C dew point

  • 4 to 20 mA output

  • Modbus RTU over RS485 output

  • Dual configurable alarm outputs

  • Sample block and cable included

  • Traceable 9-point calibration certificate

  • Ultra-fast response to moisture change

The SF82 Online has been developed as a fast-response, quick-to-install hygrometer system for the complete dew-point measurement range of -60 up to +60 °C dew point, which covers many moisture measurement applications.



  • Membrane dryers

  • Adsorption dryers

  • Medical and surgical air

  • Breathing air

  • Additive manufacturing

  • Glove boxes

  • Plastic injection moulding

Performance Specifications
Measurement Range-60 to +60°C dew point; -50 to +50°C dew point; -50 to +30°C dew point;
non-standard dp ranges and ppm
V ranges available on request
Accuracy±2°C dew point*
Response TimeT95 to -60°C dew point in <3 minutes
Repeatability0.5°C dew point
Sensor CalibrationTraceable 9-point calibration certificate
Electrical Specifications
Online Output Signals
4-20 or 0-20 mA, Modbus RTU over RS485; dual programmable relay alarms
Online OutputDew point
Maximum Analog Output Scaled RangeDew point: -80 to +20°C
Online Supply VoltageAC: 85 to 264V AC
Online Current Consumption60 mA maximum
Electrical SafetyEN61010-1
Operating Specifications
Operating TemperatureSensor: -20 to +60°C; Monitor: 0 to 50°C
Compensated Temperature RangeSensor: -20 to +50°C; Monitor: not applicable
Storage TemperatureSensor: -40 to +60°C; Monitor: -10 to 60°C
Operating Pressure10 MPa (100 barg) maximum
Sensor Flow Rate1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress ProtectionSensor MiniDIN: IP66 in accordance with standard BS EN 60529:1992+A2:2013;
NEMA 4 protection in accordance with standard NEMA 250–2014
Sensor M12: IP65
Monitor: IP65 (NEMA 4X) front panel only
Sensor Housing Material316 stainless steel
DimensionsSensor: L=132mm x ø45mm (with connector cable)
Sensor M12: L=156mm x ø45mm (with connector cable)
Monitor: 1/8 DIN Case, 96 x 48 x 85mm (w x h x d)
Filter (Sensor Protection)Standard: HDPE <10μm
Sensor Process Connection5/8” - 18 UNF, 3/4” - 16 UNF, G1/2” BSP
KF40 Flange AccessoriesFlange for 5/8” 18 UNF and 3/4” 16 UNF process connections
Sensor Weight150g
Sensor Electrical ConnectionsMiniDIN 43650 form C, M12 5 pin (A coded)
Online Sensor Cable0.8, 2, 5, 10 metre connector/cable available
Sensor Diagnostic Conditions (factory programed)Sensor fault: 23 mA
Under-range dew point: 4 mA
Over-range dew point: 20 mA
NOTES * Over Compensated Temperature Range