NDIR CO2 analysers (IRGA) for life science research, environmental monitoring and industrial applications covering gas phase CO2 concentrations from 0-2000 ppm; high CO2 Analyser models (0-10% CO2) available. Whether stand-alone or integrated into gas exchange and control systems, the reliable IRGAs will meet your requirements. CO2 analysers in the range 0 to 2000 ppm carbon dioxide include:
Q-S157 CO2 Analyser, a single channel, flow-through, non-dispersive infrared CO2 analyser (IRGA) that measures CO2 in the range of 0 to 2000 ppm with a resolution of 1 ppm. The device is ideal for stand-alone CO2 exchange measurements with leaves, insects, small animals or organisms with low metabolic rates. It can also be used to measure soil respiration and for environmental monitoring. The Q-S157 is available as a (stand-alone) CO2 IRGA with
All versions of the Q-S157 feature temperature control of the rugged carrying case, making it ideal for field use. The range can be extended to 0-1% CO2 on request.
The Q-S157 CO2 analyser can be used to monitor CO2 levels in greenhouses and growth chambers. It is rugged and portable for use in the laboratory or in the field (with optional battery pack). The analyser can be used in a flow-through gas exchange configuration for instantaneous and continuous measurements of CO2 exchange. It can also be used in injection mode with a septum to measure CO2 levels, e.g. in collected whole air samples. For measurements of minimal changes in CO2 levels, the analyser can be used in stop flow or closed system mode. The Q-S157 can be used as part of CO2 Control Systems in growth cabinets or other chambers. We recommend using the Q-S157 with Qubit supplied data interface and software (optional), but other data acquisition systems 0-5 V can also be used.
See below for Q-S157 specifications.
Q-S151 CO2 Analyser, a non-dispersive infrared CO2 analyser (IRGA) that measures from 0 to 2000 ppm with a resolution of 1 ppm. The reliable technology is robust and modular for easy integration into the Q-Box packages or for stand-alone use. The Q-S151 is ideal for CO2 exchange measurements with leaves, insects, small animals or organisms with low metabolic rates. It is also excellent for in situ measurements of ecosystem or soil respiration in the field and in the laboratory.
This CO2 analyser can 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. The Q-S151 CO2 analyser can be set up for use in injection mode, where small samples of CO2 gas are injected into a carrier gas flowing past the CO2 sensor to measure CO2 levels in the headspace of collected samples. Applications include photosynthesis measurements, respiration of roots and soil samples, respirometry of insects and other invertebrates, headspace analysis of cell cultures, and atmospheric monitoring and carbon dioxide control systems. Research packages that include the Q-S151 CO2 analyser:
|Specifications||Q-S157 / Q-S151||OPEN|
Gas sampling mode: Continuous flow, or sealed chamber
Maximum gas flow: 650 mL min-1
Measuring range (LCD display): 0 - 1999 ppm
Analogue output, high sensitivity: 0 - 500 ppm; low sensitivity: 0 - 2000 ppm
Accuracy: ±1 ppm
Repeatability (at stable air pressure and temp.): Better than ±1 ppm
Maximum drift (per year): ±100 ppm
Response time (@ 250 mL min-1; to 95% of final value): ~25 s
Warm up time (@ ~22°C): ~5 min (Q-S151), ~15 min (Q-S157)
Output (linear) for high / low sensitivity setting: 0-5 VDC for 0 - 500 ppm / 0 - 2000 ppm
Calibration Adjustments: Zero and Span
Operating Temperature Range: 0 to 50°C; Storage: -40 to 70°C
Operating pressure range: ±1.5% of local mean pressure
Humidity range: 5 to 95% rH, non-condensing (dry gas flow recommended)
Pressure Sensitivity: +0.19% reading per mm Hg
Power requirements: 12 VDC via 120 VAC/60 Hz adapter; current draw 125 mA average, 450 mA peak
Dimensions: 17 x 40 x 30 cm (Q-S157), 5.5 to 9.5 x 9.5 x 17 cm (Q-S151; H x W x D)
Weight: 4.7 kg (Q-S157), 1 kg (Q-S151)
|References||CO2 Analyzer 0-2000 ppm||OPEN|
Almost all gas analysers can be operated in an injection mode, where the small gas aliquots to be analysed are injected into a carrier gas stream with a syringe or similar device for subsequent analysis. The example shows the setup for the Q-S151 CO2 analyser. Whole air samples for injection can be collected automatically using the VSI AS-100 Air Sampler. Get in contact!