The DF-310E features:

• Accuracy – the greater of ±3 reading or ±0.02% range
• Ranges from 0-0.5ppm to 25%Instantaneous response to oxygen change
• Fast response – typically less than 10 seconds to read 90% of a step change
• Background gas compatibility including N₂, H₂, Co, freons, hydrocarbons, and more
• STAB-EL™ option removes acids and ionic impurities from the electrolyte that could affect sensor performance
• Optional battery back-up for extended use and process protection

Range
Ranges are available from 0-50 ppm to 0-25%
Sample Gas Compatibility
BASIC SENSOR: All inert and passive gases including N₂, CO, H2, Ar, freons, hydrocarbons, etc.
SENSOR WITH Stab-El™ OPTION: Neutralizes trace contaminants including acids such as CO₂, H2S, NOX, SOX, etc. (Consult Delta F for concentration limits.)

Accuracy (at constant temperature)
Standard Resolution Sensor: Greater of ±3% of reading or 0.5% of range
High Resolution Sensor: Greater of ±3% of reading or 0.02% of range (except for ranges <100 ppm: ±3% of reading or ±0.05% of range)

Response Time
Responds instantaneously to O₂ change. Equilibrium depends on specific conditions. Typically <10 seconds to read 90% of a step change.Sample Requirements
Gas phase, non-condensing, 0° to 50° C (32° to 122° F)
Flow from 1.0 to 3.0 scfh at 0.2 to 1.0 psig pressure (except 15-25 psig for 310E H0050 without pump)