IRceL Sensors

There are certain basic components common to all infrared gas sensors: an infrared source (e.g. incandescent lamp), a detector (e.g. thermopiles, pyroelectric detectors), a means to select appropriate wavelengths (e.g. band pass interference filter) and a sample cell. Radiation from the source passes through the sample cell and wavelength selector. The choice of wavelength has a large bearing on the relative selectivity of the sensor. The radiation NOT absorbed by the sample is then detected and the ratio of this to the incident provides a measure of the concentration of target gas in the sample. A second detector (or channel) tuned to a different wavelength that is not attenuated by any species likely to be present in the sample is normally used to provide this reference measurement.

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Availability: Commercially Available

+49 (0) 228 52 66 40
Justus-von-Liebig-Str. 22,
53121 Bonn, Germany
www.citytech.com
Manufacturer
City Technologies
Product Name
IRceL Sensors
Detection Category
Chemical
Detection Principle
Molecular Spectroscopy;
Detection Method
Infrared (IR) Spectroscopy ;
Application
Gas Analysis;
Equipment Type
Sensor
Product Synopsis
There are certain basic components common to all infrared gas sensors: an infrared source (e.g. incandescent lamp), a detector (e.g. thermopiles, pyroelectric detectors), a means to select appropriate wavelengths (e.g. band pass interference filter) and a sample cell. Radiation from the source passes through the sample cell and wavelength selector. The choice of wavelength has a large bearing on the relative selectivity of the sensor. The radiation NOT absorbed by the sample is then detected and the ratio of this to the incident provides a measure of the concentration of target gas in the sample. A second detector (or channel) tuned to a different wavelength that is not attenuated by any species likely to be present in the sample is normally used to provide this reference measurement.
Availability
Commercially Available
Technology Readiness Level (TRL)
9
User Feedback Sources
Indifferent/No user feedback
Dimensions
.79 x .79 x .81 in (20 x 20 x 20.7 mm)
Weight
<1 lb.; 0.81 oz (23g)
Power Requirements
AC/DC Line Power; 3-5VDC, 2Hz lamp frequency
Transportability
Handheld
Ruggedness
Extreme Temperatures/Humidity
Operating Conditions
-20 to 55°C; 0 to 99% RH
Consumables
<$1,000/year; Calibration gases
Calibration Schedule
Yes
Unit Cost
$260.00
Other Chemical Targets
Carbon dioxide, combustible gases
Sample Introduction
Vapor/Gas
Sensitivity/Detection Limits
%; ppm
Start Up Time (From Cold Start To Sample Ready)
< 10 seconds
Response Time (Sample Application To Output)
<1 minute; < 35 seconds
Alarm Capability
Signal output
Other Operational Parameters
Carbon dioxide 0-5%, combustible gases 0-5%
Training Required
<1 week training
Manuals Available
Specification sheets
Warranties
12 months from date of dispatch
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