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LI-830 LI-850
LI-830二氧化碳;LI-850二氧化碳/水分析儀
CO2;CO2/H2O Analyzer
http://www.licor.com/830
 LI-COR

說明:

 單光路、雙波長非擴散的LI-850 CO2/H2O分析儀。該產品成本低,集CO2/H2O同時測量於一體,穩定性好,使用便攜,運行可靠。

只需將其插入,即可開始使用

 

可以選購泵和顯示器,只需打開儀器電源,即可立即進行測量。 使用易於使用的軟件查看即時測量結果,配置圖表或設置日誌記錄選項。

保持簡單,最小的維護

 

通過用戶可清洗的光學平台,確保連續操作和最小化停機時間,無需工廠重新校準。

輕鬆查看或記錄測量結果

 

Windows®和Mac®界面軟體,顯示即時濃度和圖表。 輕鬆設置運行參數和記錄選項,並查看分析儀診斷。


訂購編號:

組       成CO2 and H2OCO2

含泵和顯示器Fully featured with pump and display

LI-850LI-830

含泵不含顯示器Analyzer with pump –no display

LI-850-1LI-830-1

不含泵含顯示器Analyzer with display – no pump

LI-850-2LI-830-2

不含泵和顯示器Analyzer only – no pump or display

LI-850-3LI-830-3


應用領域

  1CO2貯藏 2)CO2隔離 3)土壤CO2
  4TOC系統 5)大氣監測 6)植物科學
  7)蒸散研究 8)海洋科學 9)果實儲藏
  10)氣象學 11)半導體工業 12)生物治理研究
  13)昆蟲呼吸研究 14)溫室控制系統 15)環境空氣監測

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Read more about Measuring pCO2 and Dissolved Inorganic Carbonates in Water

規格:

CO2 measurements

  • Measurement range: 0-20,000 ppm
  • Accuracy
    • LI-850 Within 1.5% of reading
    • LI-83O Within 3% of reading
  • Calibration Drift
    • Zero Drift1: <0.15 ppm/°C
    • Span Drift2: <0.03%/°C
    • Total Drift at 370 ppm3: <0.4 ppm/°C
  • RMS noise at 370 ppm with 1 sec signal filtering: <1 ppm
  • Sensitivity to water vapor (LI-850 only): <0.1 ppm CO2/mmol mol-1 H2O
  • Lower limit of detection 1.5 ppm

H2O Measurements (LI-850 only)

  • Measurement range: 0-60 mmol mol-1
  • Accuracy: Better than 1.5% of reading
  • Calibration drift
    • Drift at 0 mmol mol-1: <0.003 mmol mol-1/°C
    • Span drift at 10 mmol mol-1: <0.03% mmol mol-1/°C
    • Total drift at 10 mmol mol-1: <0.009 mmol mol-1/°C
  • RMS noise at 10 mmol mol with 1 sec signal filtering: <0.01 mmol mol-1
  • Sensitivity to CO2: <0.0001 mmol mol-1 H2O/ppm CO2

Pump (preliminary; optional)

  • Nominal flow rate: 0.5 liters minute-1
  • Power consumption: <0.75 W

Display (optional)

  • Dimensions: 6.7 cm corner-to-corner
  • Resolution: 400 x 200 px; monochrome
  • Power consumption: <200 µW
  • Displayed variables: CO2 reading, H2O reading (LI-850 only), optical bench temperature, and pressure.

General

  • Output rate: Up to 2 measurements per sec
  • Response time (T90):
    • CO2: <3.5 seconds from 0-375 ppm
    • H2O: <3.5 seconds from 0-21 ppm mmol mol-1
  • Measurement principle: Non-Dispersive Infrared
  • Traceability:
    • CO2: Traceable gases to WMO standards from 0-3,000 ppm; traceable gases to EPA protocol gases from 3,000-20,000 ppm
    • H2O (LI-850 only): NIST traceable LI-610 Portable Dew Point Generator
  • Pressure compensation range: 50-110 kPa
  • Maximum gas flow rate: 1 liter min-1
  • Output signals: Two analog voltage (0-2.5 V or 0-5 V) and two current (4-20 mA)
  • Digital outputs: TTL (0-5V) or Open Collector
  • DAC resolution: 16-bits across user specified range
  • Power Requirements:
    • Input Voltage: 12-30 VDC
    • After warmup: 0.3 A @ 12 VDC (3.6 W) average
    • During warmup: 1.2 A @ 12 VDC (3.6 W) average
  • Operating temperature range: -20°C to 45°C
  • Relative humidity range: 0 to 95% RH, Non-condensing
  • Dimensions: 22.23 x 15.25 x 7.62 cm (8.75” x 6” x 3”)
  • Weight: 1 kg (2.2 lbs)
  • Internal optical cell volume: 14.5 mL
  1. Zero drift is the change with temperature at 0 concentration.
  2. Span drift is the residual error after re-zeroing following a temperature change.
  3. Total drift is the change with temperature without re-zeroing or re-spanning.

Specifications subject to change without notice.