Updated:2023-10-13
Views:1104
Online Service
Fast and Precise Moisture Measurement in Natural Gas
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
ATEX, IECEx, UKCA and cQPSus certified
Integrated sample handling
Proven Michell Instruments quality: 40 years' expertise in moisture measurement built into the design
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.
Specification
Measuring Technique | Tunable Diode Laser Spectroscopy (TDLAS) |
Measurement Range | 1 ppmV...1000ppmV |
Accuracy * | ± 1 ppmV or ±3 % of reading, whichever is greater |
Repeatability * | ±0.5 ppmV or ±1.5 % of reading, whichever is greater |
Limit of Detection | 1ppmV |
Available Units | ppmV, lb/MMSCF, mg/Nm3, dew point °C or °F (ISO18453 or IGT#8) |
Response Speed | Display update 2...3s |
Environmental Conditions |
Indoor version: +10 °C...+45 °C Outdoor version:* –20 °C...+45 °C Outdoor with cooling option:* –20 °C...+55 °C |
Electrical Specifications | |
Supply Voltage | 110 V AC or 230 V AC 50/60Hz |
Power Requirements |
Indoor version: 80W Outdoor version: 180W |
Analog Signals |
Input: 2 x 4...20 mA user configurable Output: 3 x 4...20 mA,3 alarms 250 V AC, 3A (volt-free contacts) |
Digital Communications | RS485 Modbus RTU |
Data Logging | Logs all process variables with a user selectable sample period in the range 10s...1 day |
Local Interface | 4.3” color 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 |
0.5 Nl/min cell sample 1...5 Nl/min sample filter by-pass |
Inlet Pressure | Maximum 100 barg (1450 psig) |
Outlet Pressure | Cell vent 0.7...1.4 bara (10...20.3 psia), Filter by-pass maximum 3 barg |
Enclosure Type/ Packaging | Aluminium alloy, explosion proof, polyester coated, IP66, NEMA4 |
Gas Connections | 1/4” NPT(F) |
Weight | 40...75 kg (88...165 lbs) (approximate – depending on configuration) |
Sample System Enclosure | 304L or 316L stainless steel |
Hazardous Area | |
ATEX/UKCA: IECEx: cQPSus: |
II 2 G Ex d ib op is IIC T5 Gb Ex db ib op is IIC T5 Gb, Tamb –20 °C...+60 °C Class I, Division 1, Groups A, B, C, D, T5, Tamb –20 °C...+60 °C |
*If installed outside, the analyzer must be shaded from direct sunlight to prevent heating effects through sun radiation |
Suitable Applications
Customer Service QQ
Customer Hotline:
Technical Supports