GE’s Aurora analyzer uses tunable diode laser absorption spectroscopy (TDLAS) to measure moisture in natural gas rapidly and accurately. The analyzer is suitable for installation in hazardous areas and operates over a wide range of environmental conditions. Aurora’s fast response quickly alerts and documents when moisture concentrations are out of compliance. Once process upsets are corrected and the gas dries out, the fast response enables natural gas to be cleared for entry into the “energy grid.”
GE’s experience in moisture measurement includes aluminum oxide, polymer capacitance and chilled mirror sensors. GE’s heritage also includes the development of the first injection diode laser in 1962 by Dr. Robert Hall in Schenectady, NY. The compact and inexpensive diode laser made it possible for compact discs, laser printers and fiber optic telecommunications. The new Aurora TDLAS hygrometer enables natural gas processing and transportation facilities to monitor moisture content in real time with high precision and reliability.
Features
- Optical response: <2 seconds
- No cross sensitivity to glycols or other contaminants
- Direct readout in lbs/mmscf, mg/m3, dew point or ppmv
- Turnkey sampling system for measurement integrity
- “Through-the-glass” programming with magnetic stylus. No “hot permit” needed.
- Hazardous area certifications: cFMus Class I, Div 1, Groups C and D, ATEX & IECEx Ex de IIB T6
- Three programmable 4-20mA signals—monitor gas quality 24X7
- Two digital RS 485/232 ports with MODBUS RTU— direct connection to digital SCADA systems
- Supplied with AuroraView software— enables remote readout, trend graphing and diagnostics
- Reliable—designed for five years of continuous service before first factory service
