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Chapter 5: Specifications
Accuracy
Standard Conditions
The following accuracy specifications are valid for dry single gases at 22 ± 5 °C and 1013 ± 40
hPa:
Gas Range* Accuracy
CO
2
0 to 15 vol%
15 to 25 vol%
±(0.2 vol% + 2% of reading)
Unspecified
*All gas concentrations are reported in units of volume percent and may be translated into
mmHg or kPa by using the reported atmospheric pressure.
All Conditions
The following accuracy specification is valid for all specified environmental conditions except
for interference specified in Effects from Water Vapor Partial Pressure on Gas Readings on
page 25 and Interfering Gas Vapor Effect on page 25.
Gas Accuracy
CO
2
±(0.3 kPa + 4% of reading)
Environmental
Environmental Conditions
Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage/Transport Temperature* -40°C to 70°C (-40°F to 158°F)
Operating Humidity** 10% to 95% RH (non-condensing)
Storage/Transport Humidity
10% to 95% RH (non-condensing at ambient
temperature)
Ambient CO
2
≤ 800 ppm
Operating Atmospheric Pressure*** 525 mbar to 1,200 mbar (52.5 kPa to 120 kPa)
Storage/Transport Atmospheric
Pressure
200 mbar to 1,200 mbar (20 kPa to 120 kPa)
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