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

Precision Chilled Mirror Hygrometer - Michell S8000

Updated:2025-03-13

Brand: PST/Michell
Model: S8000
Description: The S8000 precision hygrometer provides a direct measurement of dew point, temperature and pressure. Suitable for both industrial and laboratory applications, the instrument is compact and self-contai
Data download

Feedback
WeChat

QQ

Online Service

Product Details

Precision Chilled Mirror Hygrometer - Michell S8000 Description：

Product Manual

Drift-Free Humidity Measurement for Industrial Applications

Features

±0.1 °Cdp (±0.18 °Fdp) accuracy

Fundamental, accurate and drift-free measurement

Simple configuration and operation via touch screen interface

Precision measurements to –60 °C (–76°F) dew point

FAST – guaranteed frost formation below 0 °C (+32 °C)

Measure at pressures up to 2 MPa (20 barg)

USB, Ethernet, RS485 or RS232 connectivity

Data logging to SD card or via digital comms

The S8000 precision hygrometer provides a direct measurement of dew point, temperature and pressure. Suitable for both industrial and laboratory applications, the instrument is compact and self-contained.

Dew-point measurement is based on the proven, fundamental optical chilled mirror measurement principle, giving long-term reliable humidity measurement over the entire operating range. The S8000 uses this measurement to offer a range of available measurement units including ppmV, absolute humidity, relative humidity and ppmW.

Specification

Dew-Point Sensor Performance
Measurement Technology	Chilled Mirror
Accuracy*	±0.1°Cdp
Reproducibility	±0.05°C
Measurement Range	–60 to +40°Cdp (–76 to +104°Fdp)
Operating Pressure	Low pressure version: 0 to 1 barg / 14.5 psig High pressure version: 0 to 20 barg / 290 psig
Sample Flow Rate	0.1 to l Nl/min (0.2 to 2.1 scfh)
Detection System	RRS Triple Detection
Remote PRT Probe (Optional)
Temperature Measurement	4 wire Pt100, 1/10 DIN class B
Measurement Accuracy	±0.1°C
Cable Length	2m (6.6’) (250m (820’) max)
Flow Sensor
Measurement Accuracy	Typical ±5% uncalibrated
Measurement Range	0 to 1000 ml/min
Integrated Pressure Sensor (Optional)
Measurement Range	0 to 25 bara (0 to 377 psia)
Measurement Accuracy*	0.25% Full Scale
Measurement Units	psia, bara, KPa or MPag
Monitor
Resolution	User-selectable to 0.001 dependant on parameter
Measurement Units	°C and °F for dew point and temperature %RH, g/m³, g/kg, ppm_V , ppm_W (SF₆), for calculated humidities
Outputs	Analog 3 channels, user selectable 4-20 mA, 0-20 mA or 0-1 V Digital Modbus RTU over USB, and optional Modbus RTU over RS232, 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 (512Mb supplied) and USB interface SD Card (FAT-16) — 2Gb max. that allows 24 million logs or 560 days, logging at 2 second intervals
Environmental Conditions	–20 to +40°C (–4 to +104°F)
Power Supply	85 to 264 V AC, 47/63 Hz
Power Consumption	100 V A
EMC - Class A Emissions Industrial Location Immunity	Complies with EN61236:1997 (+A1/A2/A3)
Mechanical Specifications
Dimensions	187 x 440 x 343mm (7.36 x 17.32 x 13.5”) h x w x d
Weight	11.4kg (25.1lb)
General
Process Connections	6mm Swagelok^® (MALE) tube or 1/4” Swagelok^® tube (MALE)
Storage Temperature	–20 to +50°C (–40 to +122°F)
Calibration	3-point traceable in-house calibration as standard UKAS accredited calibrations optional - please consult Process Sensing Technologies
* 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.