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Picarro G2508 gas concentration analyzer
Picarro G2508 gas concentration analyzer
Product details
Product Overview
The Picarro G2508 gas concentration analyzer can simultaneously measure nitrous oxide (N2O), methane (CH4), carbon dioxide (CO2), ammonia (NH3), and water vapor (H2O), with a sensitivity of parts per billion (ppb). The drift generated by agricultural and soil science, ecology, and quantitative emission applications can be ignored. This analyzer can operate in open or closed systems and can be easily integrated with chamber systems.
Product Features
• Synchronous continuous measurement of N2O, CH4, CO2, NH3, and H2O
• Billion parts per billion (ppb) sensitivity, capable of achieving excellent rate of increase quantification
• Fast response time and continuous measurement function ensure data is provided with high temporal resolution
• Can operate in open or closed systems and easily integrate with chamber systems
• Equipped with water correction function, automatically reporting dry gas mole fraction
Main technical parameters
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Picarro G2508Performance specifications in air |
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Specifications |
N2O |
CH4 |
CO2 |
NH3 |
H2O |
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Initial accuracy( 1σ ) |
< 25 ppb |
< 10 ppb |
< 600 ppb |
< 5 ppb |
< 500 ppm |
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Accuracy,1 minute( 1σ ) |
< 10 ppb |
< 7 ppb |
< 300 ppb |
< 3 ppb |
< 250 ppm |
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Accuracy,5 minute( 1σ ) |
< 5 ppb +0.008%reading |
< 5 ppb +0.02%reading |
< 200 ppb +0.05%reading |
< 1 ppb +0.05%reading |
< 100 ppm |
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Ensure accuracy range |
0.3–200 ppm |
1.5–12 ppm |
380–5000 ppm |
0–300 ppb |
0–3 % |
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measuring range |
0–400 ppm |
0.5–15 ppm |
0.02–2 % |
0–2 ppm |
0–7 % |
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Measurement rate |
< 8second |
< 8second |
< 8second |
< 8second |
< 8second |
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Typical gas response |
~ 8second |
~ 8second |
~ 8second |
See the annotation below |
See the annotation below |
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Report dry mole fraction |
yes |
yes |
yes |
no |
Not applicable |
Annotation:H2OandNH3 The response is limited by its adsorption on the surface of the experimental device. Although the analyzer will accurately measure the inside of the optical cavityNH3 andH2OCalculate the concentration of, but use these measured values to calculate the soilNH3 andH2OThe actual flux will become complex due to the adsorption dynamics within the system.
Specificity of the analyzer: Compared with other spectroscopic measurement techniques, Picarro CRDS technology utilizes an extremely narrow spectral region, which can significantly reduce the possibility of interference from other gas species. However, interference may still occur in actual samples. Not only is the Picarro analyzer equipped with interference detection software, but the effects of the following gases on the analyzer have also been tested and characterized:
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Picarro G2508Trace interference gas |
N2OSensitivity |
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carbon dioxide |
nothing-Automatically calibratable20000 ppm CO2 |
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methane |
nothing-Automatically calibratable200 ppm CH4 |
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ammonia |
nothing-Automatic calibration is good, achieving2 ppm NH3 |
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ethane |
0.2 ppb N2O / ppm C2H6The highest value tested is120 ppm |
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ethylene |
0.5 ppb N2O / ppm C2H4The highest value tested is16 ppm |
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acetylene |
Not applicable for acetylene experiment |
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Background gas |
Designed for use in ambient air, not suitable for background gases with drastic changes in composition or high-purity gasesN2、O2、H2、HeWaiting for background gas |
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ChemDetect ™Software |
distinctivePicarroAlgorithm detects and marks data that may be inaccurate due to spectral interference |
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Picarro G2508System operating parameters |
Specifications |
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ambient temperature |
10–35 ℃ |
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ambient humidity |
< 99%Relative humidity, under non condensing conditions |
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Sample pressure |
300 to 1000 Tuo（40 to 133 Kilopascals) |
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Sample flow rate |
~ 230Standard milliliters per minute |
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Sample humidity |
< 99%Relative humidity, non condensing conditions, water vapor calibration test until25 ℃the dew point |
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Sample temperature |
-10–45 ℃ |
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Optical cavity temperature control |
±0.005 ℃ |
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Optical cavity pressure control |
±0.0002Atmospheric pressure |
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closed circuit/Recycling capability |
WithPicarroClosed circuit system pumpA0702compatible |
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Air inlet accessories |
¼inchSwagelok ® |
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External dimensions |
17Inches widex 7Inch heightx 17.5Inch deep（43.2 x 17.8 x 44.6Centimeters), excluding 0.5Inch legs |
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weight |
50 Pound（22.6 Kilogram) |
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Power requirements |
100–240Alternating current,47–63Hertz (automatic detection).< 260Total power of watt startup, in steady state 110 tile |
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Installation form |
Desktop (standard) or19”Rack mounted chassis (optional) |
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enclosure |
Including: keyboard, mouse. Optional accessories: LCD display. Excluding: vacuum pump. |
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option |
A0702：PicarroClosed circuit system pump S0528：O2 Sensors, used for different purposesO2 In the environmentO2 Measurement and calibrationS0517: ExpansionCH4 Operating range, up to800 ppm |
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