Main Unit
Measurement Parameters |
| Channel Configuration | Single and dual channel |
| Moisture Content | ppmw |
| Temperature | °C and °F |
| Water Dew Point | °C and °F |
| Sample Flow Rate | Status indication: Low-Good-High (<0.1 to >0.3 l/min) |
| Sensor Technology |
| Moisture Sensor Technology | Michell Ceramic Moisture Sensor |
| Calibration Range | -100 to +20°Cdp |
| Measurement Range | -120 to +30°Cdp (0.001 ppmw to saturation) |
| Accuracy | Dew point: ±1°C between -59.9 & +20°Cdp
Moisture content: ±10% of reading
Dew point: ±2°C between -60 & -100°Cdp
Moisture content: ±20% of reading
Analysis temperature: Accuracy ±0.2°C |
| Resolution | 0.1°C between +20 and -80°Cdp
1°C between -80 and -100°Cdp |
| Temperature coefficient | Algorithm compensation |
| Operating Pressure | Max. 50 barg |
| Sample Flow | Up to 1 l/min (0.1 - 0.2 l/min recommended) |
| HMI |
| Keypad/Interface | Capacitive touch-screen through glass |
| Display | Vacuum fluorescent |
| Datalogging | A rolling maximum of 150 data logs is available
Each log records time, date, moisture and temperature values for each channel
5 minutes minimum and 60 minutes maximum logging intervals can be set by the user |
| Communications and Output | Two non-isolated 4-20 mA per measurement channel
500 Ω maximum load
Range and parameter settable by user
Modbus RTU @ 9600 baud-rate
Alarms: two volt free contacts per channel; one process value and one instrument status
Also available via Modbus communications |
| Enclosure |
| Type | Flameproof EExd |
| Construction | Cast copper-free aluminium (IP66/NEMA 4) |
| Finish | Chromate primer, Polyester P9010 powder coated (black). Meets BS3900 |
| General |
| Sample Connections | 1/4" NPT (female) |
| Weight | 22.5kg |
| Operating Supply Voltage | 90 to 260 V AC, 50/60 Hz, 180 W Main Unit |
| Operating Environment | -20 to +60°C up to 95% RH
Indoor or Outdoor, shaded location |
Remote Interface
Optional for indoor safe area installation |
| Host Capacity | Up to 31 Michell EExd Process Area Installation Instrumentation Range analysers in any combination of models via Modbus |
| Display | Backlit color 15cm LCD |
| Function | View and modify analyser operating settings
Record parameters to file and view virtual chart recorder analyser diagnostics |
| Ports | LAN, USB2, Modbus Re-transmission |
| Data Download | CSV (comma separated variable) format for easy import to ExcelTM |
| Remote Access | OPC (OLE for Process Control) over a LAN Embedded web page/unique IP address for PC access
Remote data reading via Modbus RTU |
| Power Supply | 100-280V, 50/60Hz |
| Plant control integration | ActiveX components to be used by software programmers for integration of Modbus protocol into a general plant software system |
| Hazardous Area Certification | ATEX Certification: II 2 G
Code: EEx d IIB + H2 T4 (135°C) IP66 Tamb -40 to +60°C
cCSAus approved: Div 1, Class 1, Group B,C,D |
