MEASUREMENT
Operating Principle: 3-electrode electrochemical
Detection Range: 0 to 2000 ppm
Filter: To remove acid gases
Filter Capacity: > 20000 ppm hours
Sensitivity: 70 ± 15 nA/ppm
Response Time (T90)(for concentrations up to 500 ppm): ≤10 s at 20°C
Recovery Time(from 100ppm down to <2 ppm): < 90 s (typically < 30 s)
Baseline Offset (clean air): < ±2 ppm CO equivalent
Baseline Shift:
-40°C to -20°C < ±3 ppm CO equivalent
-20°C to +20°C < ±2 ppm CO equivalent
+20°C to +55°C Typically < +4 ppm (+9 ppm max.)
Repeatability: < ±2% CO equivalent
Linearity: Linear up to 2000 ppm
ELECTRICAL
Resolution (Electronics dependent): <1 ppm typical
Recommended Load Resistor: 5 Ω
Bias Voltage: Not required
MECHANICAL
Housing Material: Noryl 110
Pin Material: Gold over nickel plated brass
Weight: 5 g (nominal)
Orientation Sensitivity: None
ENVIRONMENTAL
Intended Use: Portable detectors for most Life Safety applications
Operating Temperature Range: -40°C to +55°C
Temperature Coefficient:
at -40°C 45 to 65% of signal w.r.t. +20°C
at -20°C 73 to 82% of signal w.r.t. +20°C
at +55°C 105 to 111% of signal w.r.t. +20°C
Operating Pressure Range: 800 to 1200 mbar
Operating Humidity Range: 15% RH to 95% RH non-condensing
INTRINSIC SAFETY DATA
Maximum at 2000 ppm: 0.2 mA
Maximum o/c Voltage: 1.3 V
Maximum s/c Current: <1.0 A
LIFETIME
Expected Operating Life: 24 months in air
