| Hydrocarbon Dew-Point Measurement |
| Measuring Technique | Dark SpotTM fixed sample analysis.
Direct photo-detection of hydrocarbon condensate at hydrocarbon dew-point temperature |
| Sensor Cooling |
Automatic via 3-stage Peltier effect
electronic cooler under adaptive control |
| Maximum Range |
Up to Δ -55K measurement depression from Main Unit operating temperature |
| Accuracy |
±0.5°C hydrocarbon dew point (single and multiple condensible component analysis) |
| Sample Flow |
0.03m³/hr (0.5 Nl/min) - alarm standard |
| Measurement Frequency |
6 cycles/hour (recommended)
12 cycles/hour (maximum) |
| Operating Pressure |
15…100 barg (218…1450 psig) |
Water Dew-Point Measurement (Optional) |
| Measuring Technique |
Michell Ceramic Metal-Oxide Moisture Sensor |
| Units - Moisture content |
°C and °F water dew point; lb/MMscf; mg/m3, ppmV |
| Resolution |
0.1°C, 0.1°F |
| Range |
Calibrated from -100 to +20°C dew point |
| Accuracy |
±1°C from -59 to +20°C dew point
±2°C from -100 to -60°C dew point |
| Sample Flow |
1 Nl/min (0.06 m3/hr) – alarm standard |
| Temperature Coefficient |
Algorithm compensation (-20...+50°C) |
| Operating Pressure |
30…138 barg (435…2000 psig) |
Pressure Measurement
Hydrocarbon Dew-Point Analysis Pressure
Optional Water Dew-Point Process Pressure
|
| Units |
MPa, barg, psig |
| Resolution |
0.1 MPa and barg, 1 psig |
| Range |
HC dew point: 0...100 barg
W dew point: 0...200 barg |
| Accuracy |
±0.25% FS |
| Hydrocarbon Dew-Point Analyzer |
| Resolution |
Hydrocarbon and water dew point: 0.1°C |
| Sample Gas Supply |
Natural gas up to 100 barg, pressure regulated in sampling system |
| Enclosure |
EExd cast enclosure with removable glass window viewing port. Internally heated for condensation protection |
| Sample Gas Connections |
1/8” NPT(F) for both hydrocarbon and water dew-point channels; Sampling system: 6mm OD or 1/4” OD |
| Operating Environment |
Indoors/Outdoors -20...+50°C; Max 95% RH |
| Power Supply |
90...260 V AC, 50/60 Hz, 125 W Main Unit
300 W c/w Sampling System (indoor)
400 W c/w Sampling system (outdoor) |
| Weight |
22.5kg Main Unit
60kg (approx) c/w Sampling System (indoor)
75kg (approx) c/w Sampling system (outdoor) |
| Integrated Display/Keyboard |
Touch screen with vacuum fluorescent display |
| Outputs |
Modbus RTU, RS485 @ 9600 baud rate
Two 4-20 mA linear (non-isolated) outputs, user-configurable for any
combination of dew-point or pressure parameters |
| Alarms |
Process and analyzer status via software register and display annotation
Integrated low flow alarms for each sample
flow
Analyzer status fault flag 23 mA on mA Output 1 |
| Certification |
| Hazardous Area Certification |
ATEX: II 2G Ex db IIB + H2 T3 Gb Tamb -40°C...+60°C)
IECEx: Ex db IIB + H2 T3 GbTamb -40°C...+60°C)
cQPSus: Class I, Division 1, Groups B, C and D
T3 Tamb -25°C...+60°C)
CL I ZONE 1: Ex db IIB+H2 T3 Gb, AEx db
IIB+H2 T3 Gb
Tamb -40°C...+60°C |
| Pattern Approval |
GOST-R, GOST-K |
