S8000 RS High Precision Chilled Mirror Hygrometer

The S8000 RS chilled mirror sensor directly measures the formation of condensation, giving long-term and unmatched, drift-free readings of dew-point and relative humidity. It offers a wide measurement range from -90 to +20°C dew point. Fully automated control of the auxiliary cooling system means that no operator intervention is required even if the measured dew point changes from one end of the range to the other.

Product Features

  • Accuracy of ±0.1°C
  • Precision measurement to -90°Cdp (100 ppb) with no need for additional cooling
  • Simple configuration and operation via touch screen interface
  • Sensor head optimised for fast response to low moisture levels
  • Compact 19" x 4U package
  • Lightweight at 22.4kg
  • Ethernet or USB connections
  • SD card datalogging
S8000 RS

Technical Specification

Dew-Point Sensor Performance
Measurement Accuracy* ±0.1°C
Reproducibility ±0.05°C
Measurement Technology Chilled Mirror
Measurement Range RS80: -80 to +20°Cdp
RS90: -90 to +20°Cdp
Mirror Gold plated copper
Temperature Measurement 4 wire Pt100, 1/10 DIN class B
Sample Flow Rate 500 to 1000 ml/min
Sample Gas Pressure 1 MPa (10 barg) max
Remote PRT
Temperature Measurement 4 wire Pt100, 1/10 DIN class B
Measurement Accuracy ±0.1°C
Cable Length 2 metres (250 metres max)
Flow Sensor
Measurement Range 0 to 1000ml/min
Optional Integrated Pressure Sensor
Measurement Range 0 to 1.6 MPa (0 to 16 bara)
Measurement Accuracy 0.25% Full Scale
Measurement Units barg, psig, kPa, MPa
Resolution User selectable to 0.001°C, depending on parameter
Measurement Units Moisture: °C dp or °F dp, % RH, g/m3, g/kg, ppmV, ppmW (SF6)
Temperature: °C or °F
Pressure: barg, psig, kPa, Mpa
Outputs Analog: Three channels, user selectable 4-20 mA, 0-20 mA or 0-1 V
Digital:Modbus RTU over USB and optionally Modbus RTU over RS232 or RS485, or Modbus TCP over ethernet.
Alarm: Two volt-free changeover contacts, one process alarm, one fault alarm; 1 A @ 30 V DC
HMI 5.7" LCD with touchscreen, white on blue graphics
Data Logging SD Card (512 Mb supplied) and USB interface
Supports SD Card (FAT-32) - 32 GB max. that allows 24 million logs or 560 days, logging at 2 second intervals
Environmental Conditions 5 to 30°C, max 80% RH
Power Supply 85 to 264 V AC, 47/63 Hz
Power Consumption 250 VA
Mechanical Specification
Dimensions 190 x 444 x 550mm (h x w x d)
Weight 22.4kg
Sample Gas Circuit 316 Stainless steel
Sample Gas Connections Inlet: ¼" VCR
Outlet: ¼" Swagelok
Optional Integrated Smaple Pump Flow rate
1.4l/min maximum

Sample gas connections

1/4" Swagelok with bypass loop
Calibration 5-point in-house calibration, national standards traceable as standard
UKAS accredited calibrations optional - please consult factory

* Measurement accuracy means maximum deviation between instrument under test and corrected reference. To this must be added the uncertainties associated with the calibration system and the environmental conditions during testing or subsequent use.

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