| MAIN UNIT |
| Measured and Calculated Values |
Dew point °C & °F
|
| Conversions |
Automatic Pressure Compensated
Conversions ppmV for Natural Gas and Ideal Gas
Lb/mmscf and mg/Nm-³ for Natural Gas
Dew point at a pressure input by the User for Natural Gas and Ideal Gas
Calculations for natural gas moisture content based on either
ISO 18453 or IGT#8 to customer order preference
|
| Keypad/Display |
Capacitive touch-screen through glass
Display: Vacuum Flourescent |
| Data Logging |
A rolling maximum of 150 data logs is available.
Each log records time, date, moisture and pressure values for each channel.
5 minutes minimum and 60 minutes maximum logging intervals can be set by the user |
| Communication & Outputs |
Four non-isolated 4-20 mA channels; 500 Ω maximum load. Range and value settable by the 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 |
| Main Unit Enclosure |
Internal temperature control for condensation
protection and stable analysis conditions |
| Type |
Flameproof EExd |
| Construction |
Body and lid cast Copper free Aluminum LM25(EN AC-42000).
15mm thick heat resistant glass window. Cable gland entries ½" NPT (female) |
| Finish |
Chromate primer, Polyester P9010 powder coated (Black).
Meets BS3900 |
| Electrical Connections |
2.5mm² two part terminals |
| Hazardous Area Certification |
ATEX Certification Code: Group II, Category 2 G |
| Code |
EEx d IIB + H2 T4 Tamb -40 +60°C (-40 +140°F) |
| Ingress Protection |
IP66 (NEMA 4) |
| Measurement Range |
-120°C dp to +30°C dp (-184 / +86°F);
1 ppbV to 30,000 ppmV |
| Calibration Range |
-100°C dp to + 20°C dp (-148 / + 68°F);
10 ppbV to 23,000 ppmV
|
| Accuracy |
Dew point: ±1°C between -59.9 & + 20°C dp
(±1.8°F: -75.9 to +68°F dp)
Moisture content: ±10% of reading
Dew point: ±2°C between -60 & -100°C dp
(±3.6°F: -76 to -148°F dp)
Moisture content: ±20% of reading
Analysis Pressure: ±0.25% FS |
| Measured Resolution |
0.1°C: -80 to + 20°C dp (0.2°F: -112 to + 68°F dp)
1°C: -100 to -80°C dp (2°F: -148 to -112°F dp) |
| Displayed Resolution |
Dew point: 0.1°C (0.2°F) Lb/mmscf: >999.9 = 0.1, <999.9 = 0.02
ppmV & mg/Nm-³: <100 = 0.001; >100 <1000 = 0.01;
>1000 = 0.1
MPa & Barg: 0.1
p.s.i.g.: 1.0
|
| Temperature Coefficient |
Algorithm compensation |
| Operating Pressure |
Max. 206 Barg , (2987 p.s.i.g.) |
| Sample Gas Connections |
¼" NPT (female) |
| Sample Flow Rate |
0.0-0.4 m³/h (0-6.66 l/min) |
| Power Supply |
90-264 VAC, 47 to 63 Hz, 110 to 300 VDC, 180 W |
| Operating Environment |
Indoor/Outdoor: -20°C to +60°C (-4 + 140°F)
Shaded location: Max 95% RH |
| In/Out Port Connections |
¼" NPT (female) |
Remote Interface
Optional, for indoor safe area installation |
| Host Capacity |
Up to 31 Michell EExd Process Instrumentation Range analyzers in any combination of models via Modbus |
| Display |
Backlit color 15cm/6" LCD |
| User Interface |
Integral mouse, on-screen keyboard |
| Functions |
View and modify analyzer operating settings
Record parameters to file and view virtual chart recorder
Analyzer diagnostics |
| Ports |
LAN, USB2 |
| Data Download |
CSV (comma separated variable) format for easy import to Excel™ |
| Remote Access |
OPC (OLE for Process Control) over a LAN
Imbedded web page/unique IP address for PC access |
| Power Supply |
100-280 V, 50/60 Hz |
