Michell Condumax II Hydrocarbon Dew-Point Analyzer

Brand: Michell Instruments

The Condumax II hydrocarbon and water dew-point analyzer provides continuous, automatic measurements of these two critical parameters of natural gas quality.

It uses the ‘Dark Spot’ direct chilled-mirror technique to measure hydrocarbon dew point with high accuracy and long-term reliability. Water dew point measurements are provided by Michell’s Ceramic Metal-Oxide Moisture Sensor.

The Condumax II is housed in a compact explosion-proof enclosure. Both indoor and outdoor sampling systems are available as standard providing comprehensive sample conditioning natural gas at up to 138 barg.

For specific applications and requirements, we offer a custom engineering design service.

Condumax II is suitable for use with natural gas containing up to 20% hydrogen with no further modification required.

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, UKCA, cQPSus and GOST Ex certifications

Specifications

Accuracy

  • ±0.5° C hydrocarbon dew point
  • ±1° C ± (1.8° F) from -59° to 20° C (-74.2° to 68° F) dew point
  • ±2° C (3.6° F) from -100° to 60° C (-148° to 154° F) dew point
  • Pressure Measurement: ±0.25% FS

Maximum Range

  • Hydrocarbon Dew-Point Measurement: Sample Flow Up to Δ -55K measurement depression

Sample Flow

  • Hydrocarbon Dew-Point Measurement: 0.03 m3/hr (0.5 Nl/min) - Alarm standard
  • Water Dew-Point Measurement: 1 Nl/min (0.06 m3/hr) – alarm standard

Operating Pressure

  • Hydrocarbon Dew-Point Measurement: 15 to 100 barg (218 to 1,450 psig)
  • Water Dew-Point Measurement: 30 to 138 barg (435 to 2,002 psig)

Resolution

  • Pressure Measurement: 0.1 MPa and barg, 1 psig
  • Hydrocarbon and water dew point: 0.1° C (0.18° F)

Enclosure

  • EExd cast enclosure with removable glass window viewing port
  • Internally heated for condensation protection

Sample Gas Connection

  • 1/8” NPT(F) for both hydrocarbon and water dewpoint channels
  • Sampling system: 6 mm OD or 1/4” OD

Operating Environment

  • -20° to 50° C (-4° to 122° F)
  • Max 95% RH

Power Supply

  • 90-260 VAC 50/60 Hz, 125 W Main Unit
  • 300 W c/w indoor sampling system
  • 400 W c/w outdoor sampling system

Output

  • 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

Approvals

  • IECEx, ATEX, UKCA, cQPSus and GOST Ex
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