Q-S151 Infrared CO2 Analyzer is a non-dispersive infrared CO2 analyzer that measures CO2 in 0 to 2000 ppm range with 1 ppm resolution. Dependable technology rugged and modular for easy fit in our Q-Box Packages or for stand alone use. Q-S151 is ideal for CO2 exchange measurements with leaves, insects, small animals or organisms with a low metabolic rate. It is also excellent for measuring soil respiratory activity in situ in the field and in the lab.
This CO2 analyzer may be used in a flow-through system configuration for instantaneous and continuous measurements of CO2 production or consumption. It can also be used in a closed system mode for measurements at extremely low activity levels.
This Q-S151 CO2 analyzer may be set up for use in the injection mode where small samples of CO2 gas are injected into a carrier gas flowing past the CO2 sensor for measurements of CO2 levels in the headspace of collected samples.
The Q-S151 is a key component of Qubit Systems’ carbon dioxide control system for regulating pCO2 in growth cabinet or rooms.
Packages that include Q-S151 CO2 Analyzer:
FL23 Algal CO2 Package
Q-Box CO650 Plant CO2 Analysis Packages
Q-Box RP1LP Low-Range Respiration Package
Q-Box SR1LP Soil Respiration Package
Switchable ranges of 0 – 500 ppm and 0 – 2000 ppm CO2
1 ppm CO2 resolution on digital display
Non-dispersive infrared technology
Modulated infrared light source = no moving parts
0 – 5 V analog output at both range settings
Optional battery pack for field use
Compact and portable
Respiration of roots and soil samples
Respirometry of insects and other invertebrates
Head space analysis of cell cultures
Atmospheric monitoring and control
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Jean E.T. McLain and DeanA. Martens. Nitrous oxide flux from soil amino acid mineralization. SoilBiology and Biochemistry. Vol 37, Issue 2, p289-299 (2005).
MarkO. Baerlocher, Douglas A. Campbell, and Robert J. Ireland. Developmentalprogression of photosystem II electron transport and CO2 uptake inSpartinaalterniflora, a facultative halophyte, in a northern salt marsh. Can. J.Bot. Vol. 82, Number 3, p365–375 (2004)
L.H.Ziska, J.A. Bunce and E.W. Goins. Characterization of an urban-rural CO2/temperature gradient and associated changes in initial plantproductivity during secondary succession. OECOLOGIA Volume 139, Number 3,p454-458 (2004).
Y.P.Cen and D. B. Layzell. Does oxygen limit nitrogenase activity in soybeanexposed to elevated CO2? Plant, Cell & Environment Vol 27, Issue 10,p1229–1238 (2004).
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Operating principle Non-dispersive infrared
Gas sampling mode Flowing gas stream, sealed chamber
Maximum gas flow rate – 650 mL/min
Measurement range (LCD display) 0 – 1999 ppm
Analog output, low sensitivity 0 – 2000 ppm
Analog output, high sensitivity 0 – 500 ppm
Accuracy ± 1 ppm
Repeatability (at stable atm press and temp) Better than ±1 ppm
Maximum drift (per year) ±100 ppm
Response time (@ 250 mL/min; to 95% of final value) ca. 25 sec
Warm up time (@ 22oC) ca. 5 min
Output (linear) for Low Sensitivity setting 0 – 5 VDC for 0 – 2000 ppm
Output (linear) for High Sensitivity setting 0 – 5 VDC for 0 – 500 ppm
Calibration adjustments Zero and Span
Operating temperature range 0 to 50oC
Storage temperature range -40 to 70oC
Operating pressure range ±1.5% local mean pressure
Humidity range 5 to 95% RH, non-condensing (recommend drying gas stream)
Pressure dependence +0.19% reading per mm Hg
Power requirements 12 VDC via 120 VAC/60 Hz adapter
Current requirements 125 mA average, 450 mA peak
Dimensions (cm) (H x W x D: 5.5 to 9.5 x 9.5 x 17)
Warranty 1 year limited