A7EF

MEASUREMENT
Operating Principle: 4-electrode electrochemical
Measurement Range: 0-1000 ppm CO
Maximum Overload: 2000 ppm CO
Filter: To remove H2S
Auxillary Electrode: To compensate for hydrogen cross interference
Sensitivity: 0.10 ± 0.02 μA/ppm
Response Time (T90): <35 seconds at 20°C
Baseline Offset (clean air): -2 to +15 ppm CO equivalent
Resolution: 0.5 ppm (when used with recommended electronics)
Repeatability: 1% of signal
Linearity: Linear

ELECTRICAL
Recommended Load Resistor: 10 Ω
Bias Voltage: 0 or +250 mV

MECHANICAL
Weight: 25 g
Housing Material:

• Cap: Polycarbonate
• Body: ABS

Orientation: Any

ENVIRONMENTAL
Operating Temperature Range: -20°C to +50°C
Recommended Storage Temp: 0°C to 20°C
Operating Pressure Range: Atmospheric ± 10%
Pressure Coefficient: 0.02% signal / mBar
Operating Humidity Range: 15 - 90% RH non-condensing

LIFETIME
Long Term Sensitivity Drift: < 5% signal loss/year
Expected Operating Life: Three years in air
Storage Life: 6 months in CTL container