How it works
The GLA131-MEA Microportable Thermogenic Gas Analyser is designed to simultaneously measure methane (CH₄) and ethane (C₂H₆) within a compact, crushproof and highly portable package. Its small size allows it to be hand-carried, even on aircraft, and as it requires less than 35 Watts, the GLA131-MEA facilitates measurements of thermogenic gas in diverse environments.
The LGR-ICOS gas analysers build on the heritage and proven track record of Los Gatos Research analysers, incorporating patented Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) Technology. This is the latest advancement in tuneable diode laser absorption technology.
As with all OA-ICOS analysers, the GLA131-MEA offers fast and straightforward to operate, making it suitable for field studies, compliance monitoring, air quality studies and soil flux studies, and any scenario where sensitive measurements of greenhouse gases are required.
The GLA131-MEA starts recording data within 20 seconds of powering on, which eliminates the need for long warm-up periods to reach thermal equilibrium. Patented OA-ICOS technology from ABB, a fourth-generation cavity-enhanced absorption technique, has many advantages over older, delicate cavity ringdown spectroscopy and direct absorption techniques. It provides easier operation and robustness with reliability at a reduced cost.
The GLA131-MEA analyser is equipped with an internal computer and can store data indefinitely on an SD card and transmit real-time data to a tablet, smartphone, or other WiFi enabled device. The analyser also features control and analysis software for comprehensive data management.
Servicing
Datasheet
LGR-ICOS™ GLA131-MEA Microportable Thermogenic Gas Analyser
Specifications
Precision* (1σ, 1 sec / 10 sec):
CH₄: 0.9 ppb / 0.3 ppb
C₂H₆: 20 ppb / 7 ppb
H₂O: 10 ppm / 3 ppm
*@ambient concentration
Measurement ranges
CH₄: 0 – 1%
C₂H₆: 0 – 500 ppm
Sampling conditions
Sample temperature: -40 – 50 °C
Operating temperature: 5 – 45 °C
Ambient humidity: <99% relative humidity non-condensing
Flow response time
<0.4 second (1/e)
Data measurement rate
0.01 – 10 Hz (user selectable)
External data interfaces
WiFi, Ethernet, USB, MIU connection (8 ports), Serial(RS-232)
Power requirements
10-30 VDC battery operated
110/240 VAC for battery recharge
35 W power consumption
120 W Power supply/charger included
99.4 Wh 6900mAh internal battery included
up to~3 hours autonomy
Dimensions
12cm H x 34 cm W x 29.5 cm D
6 in. H × 13.4 in. W × 11.6 in. D
Weight
6.1 kg (13.5 lbs) with internal battery