Q-S151 CO2 Analyzer 0-2000ppm
CO2 Injection System for measurements of headspace gas samples
Q-S151 CO2 Analyzer 0-2000ppm CO2 Injection System for measurements of headspace gas samples
Q-S151 CO2 Analyzer 0-2000ppm

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.

  • 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

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
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)
Weight  1kg
Warranty  1 year limited
  • FL-23Algal CO2 Package
  • Q-Box CO650 Plant CO2 Analysis Packages
  • Q-Box RP1LP Low-Range Respiration Package
  • Q-Box SR1LP Soil Respiration Package

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