The S157 CO2 Analyzer is a single channel non-dispersive infrared CO2 analyzer that measures CO2 in 0 to 2000 ppm range with 1 ppm resolution. This CO2 Analyzer 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 the lab and field. The analyzer may be used in a flow-through gas exchange configuration for instantaneous and continuous measurements of CO2 exchange. It can also be used in stop flow or closed system modes for measurements at extremely low activity levels. The S157 CO2 Analyzer shares the same infrared technology and modular design as the S158 CO2 Analyzer. The S157 CO2 Analyzer may also be used as part of Qubit Systems’ carbon dioxide control system for regulating pCO2 in growth cabinet. We recommend using S157 with our C950 Gas Exchange Software or other data acquisitions software.
Features :
Switchable ranges of 0 – 500 ppm and 0 – 2000 ppm CO2
1 ppm carbon dioxide 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
Weatherproof case
Applications :
Photosynthetic measurements
Respiration of roots and soil samples
Respirometry of insects and other invertebrates
Head space analysis of cell cultures
Atmospheric monitoring and control
Respiration of small amphibians
Specifications:
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: Better than ± 2% of full scale
Repeatability: Better than ±1% of reading
Maximum drift: (per year) ±100 ppm
Response time : (@ 250 mL/min; to 95% of final value) ca. 45 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: 175 mA average, 450 mA peak
Dimensions: (cm) (H x W x D: 25.4 x 10.2 x 15.2)
Weight: 2.2 kg
Warranty: 1 year limited
Specifications subject to change without notice
References:
Jumbo-Lucioni P, Ayroles JF, Chambers MM, Jorday KW, Leips J, Mackay TFC, DeLuca M. Systems Genetics analysis of body weight and energy metabolism traits in Drosophila melanogaster. BMC Genomics:11 p297- 309 (2010)
R. F. Krachler, R. Krachler, A. Stojanovic, B. Wielander, and A. Herzig. Effects of pH on aquatic biodegradation Processes. Biogeosciences Discuss.:6, p491–514 ( 2009).
Scarpeci TE, Valle EM. Rearrangement of carbon metabolism in Arabidopsis thaliana subjected to oxidative stress condition: an emergency survival strategy. Plant Growth Regul. 54: 133-142 (2008)
Busi MV, Maliandi MV, Valdez H, Clemente M, Zabaleta EJ, Araya A, Gomez-Casati DF. Deficiency of Arabidopsis thaliana Frataxin alters activity of mitochondrial Fe-S proteins and incudes oxidative stress. The Plant Journal 48: 873-882 (2006)