7EF (AB704-407) City Technology Carbon Monoxide Sensor

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Product Details:

Product	Description
Brand	City Technology
Model Number	7EF (AB704-407)
Operating Principle	3-electrode electrochemical
Measurement Range	0-1000 ppm CO
Maximum Overload	2000 ppm CO
Filter	To remove SOx/NOx and H2S
Sensitivity*	0.10 ± 0.02 µA/ppm
Response Time (T90)*	<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
Recommended Load Resistor	10 Ω
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
Long Term Sensitivity Drift	<5% signal loss/year
Expected Operating Life	Three years in air

Above specifications mentioned are for quick reference only. Actual technical details has to be obtained from below catalog.

Description

7EF (AB704-407) City Technology Carbon Monoxide Sensor

Poisoning
CiTiceLs are designed for operation in a wide range of environments and harsh conditions. However, it is important
that exposure to high concentrations of solvent vapours is avoided, both during storage, fitting into instruments
and operation.
When using sensors with printed circuit boards (PCBs), degreasing agents should be used before the sensor is
fitted. Do not glue directly on or near the CiTiceL as the solvent may cause crazing of the plastic.
Cross Sensitivity Table
Whilst CiTiceLs are designed to be highly specific to the gas they are intended to measure, they will still respond
to some degree to various other gases. The table below is not exclusive and other gases not included in the table
may still cause a sensor to react.