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Electrochemical Carbon Monoxide Gas Sensor (CO Sensor) - 4CM CiTiceL

? Operating Principle: 3-electrode electrochemical
? Detection Range: 0 to 2000 ppm
? Response Time (T90): ≤10 s at 20°C
? Repeatability: < ±2% CO equivalent
? Linearity: Linear up to 2000 ppm
? Resolution: <1 ppm typical
? Operating Temperature Range: -40°C to +55°C
? Operating Pressure Range: 800 to 1200 mbar
? Operating Humidity Range: 15% RH to 95% RH non-condensing

Model Number: 4CM CiTiceL
Data Sheet:

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Product Specification

4CM CiTiceL Carbon Monoxide Sensor (CO Sensor) Key Features & Benefits:
? Fast response and recovery time
? Superior long-term performance at temperature and humidity extremes
? Meets sensor requirements described in AQ6205-2006 and EN45544-2000

4CM CiTiceL Carbon Monoxide Sensor (CO Sensor) Technical Specifications

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 ?
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
Long Term Output Drift	< 5% per annum
Recommended Storage Temp	0°C to +20°C in sealed container
Expected Operating Life	24 months in air
Storage Life	6 months in original packaging
Standard Warranty	24 months from date of despatch

Filter Information
Activated carbon cloth filter with high surface area:
? Removes acid gases such as SO2 , NO2 & H2S
? Protects from short-term (<1000 ppm hours) exposure to alcohols such as Methanol, Ethanol, & IPA

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