Michell Instruments OptiPEAK TDL600

Moisture in Natural Gas Analyzer

Envent is working in partnership with Michell Instruments to provide a more comprehensive product offering of online process instruments for measuring moisture in Natural Gas. The OptiPEAK TDL600 Tuneable Diode Laser analyzer employs the latest techniques in laser absorption spectroscopy and signal processing power to offer a robust high performance analyzer. This non-contact technology requires minimal maintenance even in demanding applications.

OptiPEAK TDL600 Datasheet

  • Features
    • High accuracy moisture measurement with an operating range of 1 ppm to 1000 ppm
    • Simple dual pass cell with light source residing inside the analyzer. Light source is never exposed to process gas
    • D-MET active gas compensation compensates for changes in Methane concentrations
    • Signal Drift Reduction- built-in continuous laser optimization system ensures that the laser remains locked to the correct water absorption peak
    • Built-in self verification and self compensation checks itself against calibration data on every update cycle without the need for an additional reference cell
    • Intuitive, 4.3″ colour LCD display with touch pad operation
    • Sour gas Compatible
    • Simple installation and setup
    • Low maintenance
    • Class I, Division 1 certified for hazardous areas
    • Integrated sampling conditioning system
    • 40 years of expertise in moisture measurement built into the design
  • Downloads
  • Certification
  • Applications
    • Natural gas glycol dehydration
    • Natural gas transmission monitoring
    • Natural gas Storage
    • LNG receiving/re-gasification plants
    • Biomethane
  • Specifications
    Measurement Technology TDLAS
    Measurement Range 1 ppmv to 1000 ppmv
    Accuracy ±1% of reading > 100 ppmv
    ±1ppmv <100ppmv
    Repeatability <1 ppmv (long term stability <0.1ppmv/year)
    Limit of Detection 1 ppmv
    Available Units ppmv, lb/MMSCF, (ISO18453 or IGT #8), mg/Nm3, dew point °C or °F
    Response Speed Optical response 0.2s, display update 2 to 3s
    Environment Temperature 10°C to 45°C (50°F to 113°F)
    Supply Voltage 90/264 VAC 50/60 Hz
    Power Consumption 80W without Heater
    Communications 2 x 4-20 mA Inputs
    3 x 4-20 mA Outputs (Optional)
    3 alarms 250V AC, 3A (volt free contacts)
    RS485 ModBus RTU
    Data Logging Logs all process variables with a user selectable sample period in the range of 10s to 1 day
    Local Interface 4.3″ color LCD with touch pad operation
    Electrical Connections 3 x 3/4″ NPT
    Calibration 3-point, traceable to NPL and NIST. No calibration required, dependant on user or quality system requirements.
    Sample Flow Rate 1 NI/min cell sample, 1 to 5 NI/min sample filter by-pass
    Inlet Pressure Maximum 1500 psig (100barg)
    Outlet Pressure Cell vent 10 to 20 psia (0.8 to 1.4 bara)
    Gas Connection 1/4″ Swagelok Tube
    Weight 88 lbs (40kg) without sample conditioning system
    Sample System Enclosure Carbon Steel or 316L Stainless Steel optional.
    Hazardous Area Certification ATEX: II 2 Ex d ib op is IIC T5 Gb
    IECEx: Ex d ib op is IIC T5 Gb
    cMETus: Class I Division 1, Groups A, B, C, D, T5 Tamb -20°C to 60°C, IP66
    TC TR Ex: 1 Ex d ib op is IIC T5 Gb

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