• Sampling system: One CO₂ and one O₂ transducer fed from a damped, micro-vacuum pump.
• Gases: Must be non-corrosive and non-flammable. A moisture removal scheme must be employed before the sampling inlet.
• System sampling flow rate: Approximately 35–200 ml/min (user variable).
• Internal damping volume: 75 ml
• Gas connector: plastic luer
• Moisture filter: It is recommended that a 0.45 μm hydrophobic membrane filter be fitted before the sampling inlet.
• 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