Condumax II On-Line is a fully self-contained hydrocarbon dew point analyzer, using the proven "Dark Spot" hydrocarbon dew point measurement principle from the highly successful Condumax instrument. Combining a hydrocarbon dew point cell and water dew point measurement in the same compact and lightweight EExd enclosure, Condumax II On-Line requires nothing more than mains power to operate.

Product Features

  • Fully automatic on-line analysis
  • Objective, highly repeatable measurements
  • 0.5°C hydrocarbon dew-point accuracy
  • Fundamental chilled mirror principle
  • Patented detection technique
  • Self-cleaning
  • No purge or cooling gas required
  • Optional water dew-point analysis
  • Modbus RTU
  • IECEx, ATEX, CCSAUS and GOST Ex certifications

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 Max. 100 barg (1450 psig)
Water Dew-Point Measurement (Optional)
Measuring Technique Michell Ceramic 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 0.06 to 0.3 m3/hr (1 to 5 Nl/min) alarm standard
Temperature Coefficient Algorithm compensation (-20 to +50°C)
Operating Pressure Max. 138 barg (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 to 100 barg
W dew point:  0 to 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 (ATEX / IECEx) or 1/4” NPT (CSA) female ports for both hydrocarbon and water dew-point channels; Sampling system: 6mm OD or 1/4” OD
Operating Environment Indoors/Outdoors -20 to +50°C; Max 95% RH
Power Supply 90 to 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
Hazardous Area Certification ATEX: II 2G Ex d IIB + H2 Gb
(-40°C to +44°C) T6
(-40°C to +59°C) T5
IECEx: Ex d IIB + H2 Gb
(-40°C to +44°C) T6
(-40°C to +59°C) T5
cCSAus: Class I, Division 1, Groups B, C and D,
T6 (Tamb= -40°C to +44°C)
T5 (Tamb= -40°C to +59°C)
Pattern Approval GOST-R, GOST-K, GOST-T

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