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
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
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
cQPSus: 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
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