Carbon Dioxide (CO2) Performance Product Specifications
29 - 42 V Series Operating Instructions
29.9 Carbon Dioxide (CO
2
) Performance
The V 12/V 21 in conjunction with:
• CO
2
Module with Oridion
1. Performance (at sea level)
CO
2
range is 0-99 mmHg, inclusive.
The V 12/V 21 is equipped with automatic barometric pressure compensation.
2. Accuracy (at sea level)
Accuracy specification of the measured CO
2
partial pressure is according to the following table. This
testing is done according to ISO 80601-2-55: 2011.
Accuracy in the presence of interfering gases:
The accuracy specification is maintained to within 4% of the values indicated inTABLE 29-31 on page
29-42 in the presence of interfering gases according to ISO 80601-2-55: 2011 clauses 51.101.3 and
101.1. The accuracy specification is maintained to within 4% of the values indicated in the table
above in the presence of up to 80% Helium with up to 15% oxygen when tested according to the
procedures defined by ISO 80601-2-55: 2011.
Measurement accuracy may be affected by the breath rate and I/E ratio as follows:
• etCO
2
is within specification for breath rate ≤ 60 bpm and I/E ratio ≤ 1:1;
• etCO
2
is within specification for breath rate ≤ 30 bpm and I/E ratio ≤ 2:1.
Respiration Rate
Range: -1.0 to 30.0°C (30.2°F to 86.0°F)
Resolution: 0.1°C (0.1°F)
Accuracy: Exclusive of probe errors:± 0.2°C (± 0.4°F)
Invalid Data: Invalid data displayed as (- -).
TABLE 29-31
CO
2
PARTIAL PRESSURE AT SEA LEVEL ACCURACY
0-38 mmHg
± 2 mmHg
39-99 mmHg
± (5% of reading + 0.08% x (reading -39 mmHg))
NOTE: Accuracy applies for breath rates of up to 80 bpm. For breath rates above 80 bpm,
accuracy is 4 mmHg or ± 12% of reading whichever is greater, for EtCO
2
values
exceeding 18 mmHg. This is tested according to and is compliant with ISO 80601-
2-55: 2011.
Respiration Rate Range: 0 to 150 RPM
Flow Rate and Tolerance: 50 ml/min -7.5 + 15 ml/min, flow measured by volume
Respiration Rate Accuracy: The respiration rate measurement accuracy is:
0 to 70 RPM ± 1 RPM
71 to 120 RPM ± 2 RPM
121 to 150 RPM ± 3 RPM
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