current position:home page>Products>Analysis Instrument>PST>

Fast-Response Dew-Point Hygrometer - Michell SF82 Online Quick to Install Hygrometer System

Updated:2025-03-13

Brand: PST/Michell
Model: SF82 Online
Description: 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 measure
Data download

Feedback
WeChat

QQ

Online Service

Product Details

Fast-Response Dew-Point Hygrometer - Michell SF82 Online Description：

Product Manual

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.

Specification

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 Time	T95 to -60°C dew point in <3 minutes
Repeatability	0.5°C dew point
Sensor Calibration	Traceable 9-point calibration certificate
Electrical Specifications
Online Output Signals	4-20 or 0-20 mA, Modbus RTU over RS485; dual programmable relay alarms
Online Output	Dew point
Maximum Analog Output Scaled Range	Dew point: -80 to +20°C
Online Supply Voltage	AC: 85 to 264V AC
Online Current Consumption	60 mA maximum
Electrical Safety	EN61010-1
Operating Specifications
Operating Temperature	Sensor: -20 to +60°C; Monitor: 0 to 50°C
Compensated Temperature Range	Sensor: -20 to +50°C; Monitor: not applicable
Storage Temperature	Sensor: -40 to +60°C; Monitor: -10 to 60°C
Operating Pressure	10 MPa (100 barg) maximum
Sensor Flow Rate	1 to 5 Nl/min mounted in standard sampling block; 0 to 10 m/sec direct insertion
Mechanical Specifications
Ingress Protection	Sensor 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 Material	316 stainless steel
Dimensions	Sensor: L=132mm x ?45mm (with connector cable) Sensor M12: L=156mm x ?45mm (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 Connection	5/8” - 18 UNF, 3/4” - 16 UNF, G1/2” BSP
KF40 Flange Accessories	Flange for 5/8” 18 UNF and 3/4” 16 UNF process connections
Sensor Weight	150g
Sensor Electrical Connections	MiniDIN 43650 form C, M12 5 pin (A coded)
Online Sensor Cable	0.8, 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**