| Channel Configurations | Single and two channel |
| Moisture Parameters | Dew point °C and °F |
| Moisture Content | Automatic pressure compensated conversions:
ppmV for natural gas and ideal gas lb/mmscf and mg-m-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 IS0 18453 or IGT#8 to customer order preference. |
| Analysis Pressure | barg, MPa and psig |
| Sensor Technology | Michell Ceramic Metal-Oxide Moisture Sensor |
| Measurement Range | -120ºC dp...+30ºC dp (-184...+86°F)
1 ppbV...30,000 ppmV
0...250 barg (0...3625 psig) |
| Calibration Range | -100°C dp...+20°C dp (-148°F dp...+68°F dp)
10 ppbV...23,000 ppmV |
| Accuracy | Dew point: ±1°C between –59.9 & +20°C dp (±1.8°F between -75.8 & 68°F dp)
Moisture content: ±10 % of reading
Dew point: ±2°C between –60 & -100°C dp (±3.6°F between -76 & -148°F dp)
Moisture content: ±20 % of reading
Analysis Pressure: ±0.25 % FS. |
| Measured Resolution | 0.1°C (0.18°F): –80...+20°C dp (-112...+68°F)
1°C (1.8°F): –100...-80°C dp (-148...-112°F) |
| Displayed Resolution | Dew point: 0.1°C (0.18°F)
Moisture content: autoscale, 5 digits
MPa and BarG: 0.1, psig: 1.0 |
| Resolution | 0.1°C between +20°C dp and -80°C dp (0.18°F between +68 and -112°F dp)
1°C between -80°C dp and -100°C dp (1.8°F between -112 and -148°F dp) |
| Temperature Coefficient | Algorithm compensation (-20...+50°C) |
| HMI: Keyboard 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 pressure 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 |
| Main Unit Enclosure | Internal temperature control for condensation protection and stable analysis conditions |
| Type | Explosionproof NEC/Flameproof EExd |
| Construction | Cast copper-free aluminium |
| Finish | Chromate primer, Polyester P9010 powder coated (black). Meets BS3900 |
| Operating Pressure | 30...138 barg (435...2000 psig)* |
| Sample Connections | 1/8” NPT (F) |
| Sample Flow Rate | 1 Nl/min (Nm3/hr) (2.1 scfh) |
| Sample Flow Alarm | Optional |
| Power Supply | 90...260 V AC, 50/60 Hz, 180 W Main Unit |
| Operating Environment | Indoor/Outdoor -20°C...+60°C (-4...+140°F)
Max 95 % rh. Shaded location |
| Certification | |
| Hazardous Area Certification | ATEX: II 2G Ex db IIB + H2 Gb; T5 (Tamb -40°C...+44°C); T4 (Tamb -40°C...+60°C)
IECEx: Ex db IIB + H2 Gb; T5 (Tamb -40°C...+44°C); T4 (Tamb -40°C...+60°C)
cQPSus: Class I, Division 1, Groups B, C & D; T5 (Tamb -25°C...+44°C); T4 (Tamb -25°C...+60°C)
CL I ZONE 1: Ex db IIB+H2 Gb; AEx db IIB+H2 Gb; T5 (Tamb -40°C...+44°C); T4 (Tamb -40°C...+60°C) |
| Pattern Approval | GOST-R, GOST-K |
*Other variants available to customer specific order – consult Michell Instruments |
