- Brand: Michell Instruments
Tags: S8000, High, Precision, Chilled, Mirror, Hygrometer, Michell, Instruments
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
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 |
| Monitor | |
| 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 |
| 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. | |
