Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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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 ppmV 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 | |
Suitable Applications
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