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High Precision Chilled Mirror Hygrometer - Michell S8000 RS

Updated:2025-03-13

Brand: PST/Michell
Model: S8000 RS
Description: 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
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Product Details

High Precision Chilled Mirror Hygrometer - Michell S8000 RS Description：

Product Manual

Drift-Free Readings of Dew-Point and Relative Humidity

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 optimized for fast response to low moisture levels

Compact 19" x 4U package

Lightweight at 22.4kg

Ethernet or USB connections

SD card data logging

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.

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
Monitor
Resolution	User selectable to 0.001°C, depending on parameter
Measurement Units	Moisture: °C dp or °F dp, % RH, g/m³, g/kg, ppm_V, ppm_W (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: ?" VCR Outlet: ?" 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 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.