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Michell Instruments

S8000-RS Chilled Mirror Hygrometer

Directly measures the formation of condensation for drift-free readings of dew point down to -90°C

Have questions? We're here to help!
Have questions? We're here to help!
The S8000 RS is a high-precision chilled mirror reference hygrometer which gives highly accurate and repeatable measurements of dew-point and humidity. It is intended for use as a reference instrument in standards laboratories and is also suitable for industrial applications – such as semiconductor manufacture – where precise of control of moisture is essential.
 
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.

• 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
 

Cable Length2 metres (250 metres max)
Flow Sensor
Measurement Range0 to 1000ml/min
Optional Integrated Pressure Sensor
Power Consumption250 VA
Mechanical Specification
Dimensions190 x 444 x 550mm (h x w x d)
Weight22.4kg
Sample Gas Circuit316 Stainless steel
Sample Gas ConnectionsInlet: ¼" VCR
Outlet: ¼" Swagelok
Optional Integrated Smaple Pump Flow rate
1.4l/min maximum

Sample gas connections

1/4" Swagelok with bypass loop
General
Calibration 5-point in-house calibration, national standards traceable as standard
UKAS accredited calibrations optional - please consult factory
Measurement Range 0 to 1.6 MPa (0 to 16 bara)
Measurement Accuracy0.25% Full Scale
Measurement Unitsbarg, psig, kPa, MPa
Monitor
ResolutionUser selectable to 0.001°C, depending on parameter
Measurement UnitsMoisture: °C dp or °F dp, % RH, g/m3, g/kg, ppmV, ppmW (SF6)
Temperature: °C or °F
Pressure: barg, psig, kPa, Mpa
OutputsAnalog: 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
HMI5.7" LCD with touchscreen, white on blue graphics
Data LoggingSD 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 Conditions5 to 30°C, max 80% RH
Power Supply85 to 264 V AC, 47/63 Hz
Dew-Point Sensor Performance
Measurement Accuracy±0.1°C
Measurement TechnologyChilled Mirror
Measurement RangeRS80: -80 to +20°Cdp
RS90: -90 to +20°Cdp
MirrorGold plated copper
Temperature Measurement4 wire Pt100, 1/10 DIN class B
Sample Flow Rate500 to 1000 ml/min
Sample Gas Pressure1 MPa (10 barg) max
Remote PRT
Temperature Measurement4 wire Pt100, 1/10 DIN class B
Measurement Accuracy±0.1°C
Reproducibility±0.05°C
• Standards laboratory reference instrument
• Measurement standard for high purity gas manufacture
• Measurement standard for semiconductor dry gas supply
• Calibration facilities
• Research and development
• Clean/Dry room monitoring
• Metallurgical processes
  • Thumbnail of document Data Sheet - S8000-RS Chilled Mirror Hygrometer
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    Data Sheet - S8000-RS Chilled Mirror Hygrometer

    Download
  • Thumbnail of document Manual - S8000-RS Chilled Mirror Hygrometer
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    Manual - S8000-RS Chilled Mirror Hygrometer

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