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13910499766
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Building 5, Guanghua Entrepreneurship Park, No. 18 Anningzhuang East Road, Haidian District, Beijing
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Beijing Lijia United Technology Co., Ltd
Water vapor isotope analyzer (δ 2H, δ 17O, δ 18O, H2O)
NegotiableUpdate on 04/05
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Overview
Simultaneously measure the concentrations of δ 2H, δ 17O, δ 18O, and H2O, with a water vapor concentration range of 100~60000 ppm.
Product Details
Water vapor isotope analyzer(WVIA)
LGR (currently under ABB Canada)The water vapor isotope analyzer（WVIA）It is an in-situ high-frequency continuous measurement device that meets the requirements of water vapor concentration changes over a large rangeδ2H, δ17O, δ18OandH2OMole fraction equipment. Regarding the atmosphere-The high-frequency measurement of water isotopes in the vegetation interface layer provides convenience for researchers to understand water vapor flux at the ecosystem scale, and is of great significance for fitting water vapor movement and predicting climate change.LGRWe have also designed a new water vapor isotope standard gas generator（WVISS）Long term unmanned measurement of water vapor isotopes has been achieved.
WVIAuseLGROur internal temperature control technology provides customers with stable measurements, integrating higher precision, accuracy, a wider range of water vapor concentration spans, and smaller drift. The optional attachment extends the analyzer's ability to automatically acquire multiple data channels and perform multi-point measurements.
WVIAUsedLGROutput spectrum of off-axis integrating cavity with patented design（OA-ICOS）Technology (patent number: 6795190), which eliminatesCRDSDuring the measurement process, technology requires continuous matching of the optical cavity and laser wavelength to improve the weak signal intensity, eliminating the need for complex laser alignment adjustment, temperature control, and wavelength monitoring in the analyzer. Real time display of high-resolution laser absorption spectra. Using a built-in computer（Linux OS）To provide continuous storage and measurement of data. With remote control function, users can operate the analyzer from any location through the network, and can also share real-time data and perform instrument diagnosis through remote login.
characteristic:
1. Simultaneous measurementδ2H, δ17O, δ18OandH2Oconcentration
2. Portable combination with water vapor isotope standard gas generator, providing higher accuracy measurement
3. 2 Hzhigh frequency measurement
4.moreWide range: water vapor concentration100 ~ 60000 ppm
5. Ensure measurement accuracy within different isotope ratios and a wide concentration range
6. Regarding environmental gases (such asCO2）Level insensitivity
Performance indicators:
Repeatability/accuracy（1σ，10 second/100Seconds):
δ2H：0.5‰ / 0.2‰
δ17O：0.15‰ / 0.05‰（modelGLA331-TWVIA,GLA431-TWVIA）
δ18O：0.15‰ / 0.05‰
[H2O]：0.2% / 0.07%
Drift（15Minute average, standard temperature and pressure,24Hour)
δ2H：0.8‰
δ17O：0.2‰（modelGLA331-TWVIA,GLA431-TWVIA）
δ18O：0.2‰
[H2O]：0.1%
Measurement rate:
accessible2 Hz（5 HzCustomizable)
Accuracy:
uncertainty<>(Connect)WVISS）
Measurement range:
4000 ~ 60000 ppmNon condensing (less than)100 ppmCustomizable)
Environmental conditions:
Sampling temperature:-30 ~ 50℃
Operating temperature:0 ~ 40℃
ambient humidity:0 ~ 100% RH, non condensing
Temperature control accuracy：
0.003 ℃
Pressure control accuracy：
0.001 torr
Output:
digit（RS 232）EthernetUSB
Power demand：
115/230 VAC，50/60 Hz，200 W
Size and weight:
platform Formula:27.9cm（H）x 96.5cm（W）x 55.9cm（D），40 kg
Rack mounted:35.6 cm（H）x 48.3 cm（W）x 61 cm（D），35 kg
Performance Performance
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Rapid response to isotope measurement
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 Rapid response to water vapor concentration measurement
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Isotope measurement stability with drastic temperature changes (range of environmental temperature variations)5~45℃）
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Ordering Information
model（Model）：
GLA331-WVIA（δ2H,δ18O, H2O）
GLA431-WVIA（δ2H,δ18O, H2O）
GLA331-TWVIA（δ2H,δ17O,δ18O, H2O）
GLA431-TWVIA（δ2H,δ17O,δ18O, H2O）
Optional features:
Low concentration measurement–Used for measurement applications below the normal range of water vapor concentration
Optional attachments:
1. 908-0003-9001orMIU-377-16：16Road multiplexer
2. 908-0003-9002orMIU-374-8：8Road multiplexer
3. 908-0008-9011：N940Pump, measure response time<>second
4. 904-0002Data collection software (includingUSB/RS 232Cable), capable of recording and synchronizing multiple devicesLGRAnalyzer or other equipment (such asGPSData output from anemometers, etc
manufacturer:
ABB Canada
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