The Gas Analyzer makes it possible to continuously measure the concentrations of respiratory gases in everyone from rats to humans. It contains an optical oxygen detector and an infrared carbon dioxide sensor. A damped, micro-vacuum sampling pump on the CO2/O2 respiratory gas analyzer collects expired gas from a mixing chamber. 35 to 200 ml/min can be sampled per minute using a flow control knob on the front of the device, though maximum flow values may change depending on the size and length of the tubing used.
Included with the Gas Analyzer:
- Drying Tube
- In-line Filters
For use with:
- Gas Mixing Chamber (recommended when using human subjects)
Features
- Sampling flow rates that range from roughly 35 ml/min to 200 ml/min.
- The Gas Analyzer's sampling port has an in-line filter connected to shield the transducers from moisture and harmful debris.
- A damped micro vacuum sampling pump that feeds both an optical and infrared CO2 detector.
- When linked to PowerLab, the CO2 and O2 channels automatically calibrate.
Technical
One CO2 and one O2 transducer are fed by a damped, micro-vacuum pump as part of the sampling system.
Gases: They must not corrode or catch fire. Before the sample inlet, a moisture removal strategy needs to be used.
System sampling flow rate: Approximately 35–200 ml/min (user variable).
Internal damping volume: 75 ml
Gas connector: plastic luer
Moisture filter: Before the sample intake, a 0.45 μm hydrophobic membrane filter should be installed.
Materials in contact with gas: 316 stainless steel, sapphire, Nylon 66, silicone rubber, epoxy varnish
Warm-up time: 10 minutes at 20 °C
CO2 System
- Type: Infrared, optical
- Range: 0–10% CO2
- Output: Linear, 0–1 V (0–10% CO2)
- Resolution: 0.1% CO2
- Linearity: ±0.1% CO2
- Drift: 0.1% CO2 over 8 hours
- Response time (10–90%): 90–130 ms @ 200–50 ml/min - transducer alone; 440 ms @ 200 ml/min sample flow with Nafion tubing and hydrophobic filter connected to sample inlet port
- Temp coefficient: Zero: <0.01% CO2/°C
- Span: <0.02% CO2/°C
O2 System
- Type: Visible spectrum (760 nm) absorption
- Range: 5–100% O2
- Output: Linear, 0.05–1 V (5–100% O2)
- Linearity: ±0.2% O2
- Response time (10–90%): transducer 130–300 ms between 200–50 ml/min
- Cross-sensitivity: ±0.2%
- Resolution: 0.01% O2
- Drift: 0.1% O2 over 2 hours
Operating Requirements
- Power supply: 85–250 VAC 50/60 Hz
- Peak power requirements: 60 VA
- Temperature range: 5–35 °C
- Humidity: 0–90% (non-condensing)
Signal Outputs
- Analog output: BNC connectors
Physical Configuration
- Dimensions (h × w × d): 60 mm × 300 mm × 300 mm (2.36" × 11.8" × 11.8")
- Weight: 5 kg
Product Code