Allowing space rockets and aircraft to accurately measure oxygen (O2) and carbon dioxide (CO2) gas levels.
| SV-MULTIGAS – 2 | |
| Operating temperature range | 32 to 104 °F / 0 to 40 °C |
| Storage temperature range | −4 to 140 °F / −20 to 60 °C |
| Operating pressure range | 8.7 to 17.4 psia / 600 mbar to 1200 mbara |
| Vacuum tolerance | normal operation of the SV-Multigas-2 will not be affected by 4 hour exposure to vacuum |
| Electrical supply | 18 to 36 V DC, 100 mV ripple maximum |
| Power consumption | 5 W maximum |
| 2 Analogue outputs are provided, one for each gas | Zero output: 1.0 V, full-scale output: 5.0 V, warm-up/fault output: 0.25 V Outputs are isolated from the incoming power supply and from each other |
| All wiring is to MIL-DTL-22759 (SAE-AS-22759/33) | |
| O2 SENSORS | |
| Range | 0 to 5.80 psi pO2 / 0 to 400 mbar |
| Repeatability @ 14.5 psia, 70 °F / 1000 mbara, 21 °C | ± 0.116 psi pO2 / ± 8 mbar |
| CO2 SENSORS | |
| Range | 0 to 0.14 psi pCO2 / 0 to 10 mbar |
| Repeatability @ 14.5 psia, 70 °F / 1000 mbara, 21 °C | ±(0.0014 psi pCO2 + 1.1% of reading) / ±(0.1 mbar + 1.1% of reading) |
The SV-Multigas-2 is a dual oxygen (O2) and carbon dioxide (CO2) monitor designed for vehicles operating in the upper atmosphere. Housed in a robust, compact enclosure, the unit is ideal for use in airborne delivery systems, satellites and aircraft cabins. Since 2014 the SV-Multigas-2 has been successfully used in rockets travelling to outer space. 
The SV-Multigas-2 incorporates user maintainable analogue sensors that provide a 1 to 5 V output. This modular approach to gas monitoring ensures that our customers have the flexibility to integrate the unit into their own system. It can be either installed directly in the gas path or used for general air monitoring.
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