7EF

MEASUREMENT
Operating Principle: 3-electrode electrochemical
Measurement Range: 0-10000 ppm CO
Maximum Overload: 2000 ppm CO
Filter: To remove SOx/NOx and H2S
Sensitivity: 0.10 ± 0.02 μA/ppm
Response Time (T90)

• 7E:  <25 seconds at 20°C
• 7E/F: <30 seconds at 20°C

Baseline Offset (clean air): -1 to +3 ppm equivalent
Zero Shift (+20°C to +40°C): <9 ppm equivalent
Repeatability: 1% of signal
Linearity: Linear

ELECTRICAL
Recommended Load Resistor: 10 Ω
Bias Voltage: Not Required

MECHANICAL
Weight: 17 g nominal
Housing Material:

• Cap: Polycarbonate
• Body: ABS

Orientation: Any

ENVIRONMENTAL
Typical Applications: Portable Life Safety
Operating Temperature Range: -20°C to +50°C
Recommended Storage Temp: 0°C to 20°C
Operating Pressure Range: Atmospheric ± 10%
Pressure Coefficient: 0.020 ± 0.008 % 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