Using advanced non dispersive infra red technology the IAQ 9455 provides fast accurate monitoring of CO2. The sensor is solid state, requires no service and remains stable and accurate for up to one year with no need for re-calibration. Response time is just a few seconds and a visual display on the front panel indicates current CO2 levels. Outputs available are voltage (0-10V) current (4-20mA) and an Ethernet digital output via an RJ45 connector. Power requirement is 10-32V DC and power consumption is only 0.25 watts. The sensor is not affected by water vapour or temperature making it ideal for use in a wide variety of applications. The sensor can be field tested with CO2 gas at anytime to confirm proper operation. The IAQ 9455 is competitively priced and quantity discounts are available on request.
Typical Applications Include...
HVAC, LEV, School Classroom Monitoring, Cellar Monitoring, Incubators, Office Atmosphere Optimisation, Hospitals, Confined Space Monitoring, In Vehicle Monitoring, Car Parks and Garages . etc.
Miniature Solid State NDIR CO2 Sensor
An innovative High Speed, Real Time, Low Cost, Precision gas sensor using Al-In-Sb (Aluminium Indium Antimonde) NDIR LED technology. The base Mid IR solid state technology, has been incorporated into an advanced CO2 sensor that is suitable for high volume manufacture and is targeted at a number of Carbon Dioxide Sensor applications.
The Carbon Dioxide sensor is a fast, low power NDIR sensor. Leading edge LED technology allows the sensor to run at low power – less than 100mW running at full speed.
No signal processing is required – just plug it in, power it up and read the data. (Other output options are available on request).
We work with customers of all sizes – from low volume to high volume. We are always happy to discuss the right solution for specific applications.
Technology
We supply high performance Carbon Dioxide Sensors employing (Al-In-Sb) Indium Aluminium Antimonide technology on Gallium Arsenide wafer substrate. The sensor can be supplied either as a standard RS232 output or adapted to meet customer applications. The Carbon Dioxide measured output is temperature compensated and linearised.
This new solid state NDIR technology employs an LED and a matched Photodiode manufactured to operate within a narrow optical band centred on 4.26μm. LED’s by nature are stable long life light emitters. The optical housing employs a simple but efficient optical path that collects the emitted radiation on the photodiode.
Interfacing electronics can also be constructed to suit the customer’s OEM specification.
Function
The LED and Photodiode pair is mounted on a bridge PCB over a lensed mirrored reflector. The resultant high efficiency optical path transfers the emitted narrow band light at 4.26μm from the LED through the gas to an adjacent Photodiode. The inherently stable characteristics of this solid state technology, ensures reliable performance. For higher specification and low cost systems alike this technology delivers, speed, low power consumption and stability.
Features
High speed
Real time sensing
Low power consumption
High accuracy
High poison resistance & long term stability
Small 20mm x 45mm (driver electronics and sensor package)
Benefits
Wide range of applications
Low cost
Good immunity to other gases & humidity
Low power consumption, suitable for battery operation and portable applications
CO2 Sensor Specifications
Operating Ranges
0-5%, 0-20%, 0-65%
Power consumption
< 100mW
Response Time
(T90) 5 secs
Detection Limit (2 Std Dev at zero 1 second Output)
100ppm
Resolution
10 ppm
Operating Voltage
3vdc – 5.5vdc
Operating Temperature Range
–25C to +55C
Operating Humidity range
0-95% RH Non Condensing
Standard Output (enquire for others)
RS232 – 2 readings per second
Developers Kit & Technology Demonstrator
DEVELOPERS KIT & DEMONSTRATOR
To assist developers to get started 'out of the box' we offer a developers kit consisting of;
Sensor and driver electronics
Battery power and External DC Power Supply
2 Line LCD Display (Fast and Integrated Outputs)
RS232 PC Output (DB9 - F)
Zero Function
Hyper Terminal compatible
Windows Graphing Software with File Capture (CSV)
Monitoring Technology for the European Environmental Professional
