OptiPEAK TDL600

Moisture in Natural Gas Analyzer


The next generation TDLAS Analyzer for automatic online measurement of moisture in variable compositions of natural gas and biomethane. 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, designed specifically for the measurement of moisture in natural gas. This non-contact technology requires minimal maintenance, even in demanding applications such as changing methane concentrations or sour gas. The analyzer is fully hazardous area certified and delivers class-leading measurement performance, stability and detection sensitivity.

Product Features

  • D-MET system: Factory-ready for varying gas compositions. For example, after stream blending or injection of shale gas or biomethane to a network.
  • Operating range down to 1 ppmV
  • Sour gas compatible
  • Simple installation and setup
  • Lowest maintenance
  • Class I, Division 1 certified for hazardous areas
  • Integrated sample handling
  • Proven Michell Instruments quality: 40 years of expertise in moisture measurement built into the design
Optipeak TDL600

Technical Specification

Measuring Technique TDLAS
Measurement range 1 ppmV to 1000ppmV
Accuracy ±1% of reading > 100ppmV
±1ppmV < 100ppmV
Repeatability <1ppmV (long term stability <0.1ppmV/year)
Limit of detection 1ppmV
Available units ppmV, lb/MMSCF, (ISO18453 or IGT#8), mg/Nm3, dew point °C or °F
Response speed Optical response 0.2s
Display update 2-3s
Environmental conditions Indoor version: –10°C to +45°C (+14°F to +113°F)
Outdoor version:* –20°C to +45°C (-4°F to +113°F)
Outdoor with cooling option:* –20°C to +55°C (-4°F to +131°F)
Electrical Specifications
Supply voltage 110 V AC or 230 V AC 50/60Hz
Power requirements Indoor system: 80W
Outdoor system: 180W
Analog signals Input: 2 x 4-20 mA user configurable
Output: 3 x 4-20 mA,3 alarms 250 V AC, 10A
Digital communications RS485 ModBus RTU
Data logging Logs all process variables with a user selectable sample period in the range 10s to 1 day
Local interface 4.3” Colour LCD with touch pad operation
Electrical connections 3 x M20 entries for cable glands
Calibration
Factory method 3 point, Traceable to NPL and NIST
Recommended calibration None required, dependant on user or quality system requirements
Physical Specifications
Sample flow rate 1 Nl/min cell sample, 1 to 5 Nl/min sample filter by-pass
Inlet pressure Maximum 100 barg (1450 psig)
Outlet pressure Cell vent 10 to 20 psia (0.7 to 1.4 bara), Filter by-pass maximum 43.5 psig (3 barg)
Enclosure type/ packaging Aluminium alloy, Explosion proof, polyester coated, IP66, NEMA4
Gas connections 1/4” NPT(F)
Weight 88lbs (40kg) (without sampling system)
Sample system enclosure 304L or 316L stainless steel
Hazardous area certification ATEX: II 2 G Ex d ib op is IIC T5 Gb
IECEx: Ex d ib op is IIC T5 Gb
           Tamb –20°C to +60°C
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
*If installed outside, the analyzer must be shaded from direct sunlight to prevent heating effects through sun radiation

Related Products

QMA601 QMA601
The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a wide variety of process applications where keeping moisture levels as low as possible is of critical importance.
Promet I.S. Promet I.S.
Promet I.S. Instrinsically Safe Process Moisture Analyzers measure high pressure, process gases and vaporized liquids on natural gas platforms and terminals, petrochemical plants and industrial gas manufacturing facilities. Up to four Promet I.S or Liqudew I.S analyzers may be combined via the Multi-Channel Control Unit.
Promet EExd Promet EExd
A heavy-duty analyzer for moisture in natural gas, the Promet EExd is housed in an flame-proof/explosion-proof enclosure, certified to ATEX, CCSAUS and GOST. Designed for simple installation and integration into the plant, the Promet EExd is configurable for single or dual channel measurements of moisture.
Liquidew I.S. Liquidew I.S.
The Liquidew I.S. Instrinsically Safe Moisture in Liquids Analyzer, provides fast and reliable on-line measurement of moisture content in liquids. A wide variety of non-polar liquids can be measured continuously, on-line, including flammable liquids and petrochemicals.
Condumax Condumax II
Condumax II On-Line measures the hydrocarbon dew point of natural gas, a critical factor in ensuring the quality of the gas. The analyzer includes optional water dew point measurement, to increase safety as well as avoid damage to pipelines and turbines.