Honeywell AQ3CO SENSOR Carbon Monoxide (CO) Gas Sensor User Guide
- June 7, 2024
- Honeywell
Table of Contents
AQ3CO
SENSOR
Carbon Monoxide (CO) Gas Sensor
The purpose of this document is to present the performance specification of the AQ3 Series AQ3CO Carbon Monoxide Gas Sensor.
DOCUMENT PURPOSE
This document should be used in conjunction with the AQ3CO Characterization
Note and the Product Safety Datasheet (PSDS 15).
The data provided in this document is based on the assumption that the sensor
is used at 20°C, 50% rH, and 1013 mBar for three months from the date of
sensor manufacture. For guidance on sensor performance outside of these
limits, please refer to the AQ3CO Characterization Note.
The output signal can drift below the lower limit over time. For guidance on
the safe use of the sensor, please refer to the Characterization Note. Sensor
Part Number (without board): ABQ045-H00
Module Part Number (with board): QAB045-H00
PCBA Part Number: AQ3-BP01
FEATURES AND BENEFITS
AQ3CO Carbon Monoxide Gas Sensor Technical Specifications
TECHNICAL SPECIFICATIONS
MEASUREMENT
Technology| 4-electrode electrochemical
Measurement Range| 0 ppm CO to 10 ppm CO
Maximum Overload| without board: 50 ppm CO
with the board: 30 ppm CO
Onboard Filter| to remove SOx/NOx and H2
S
Sensitivity| without board:
240 nA/ppm ±80 nA/ppm
with board:
90 mV/ppm ±35 mV/ppm
Response Time (T)| < 70 seconds
Resolution| 20 ppb when used with recommended
circuitry
Baseline Offset| without board: -200 nA ~ 360 nA
with board: -80 mV ~ 140 mV
Repeatability| < ±3% of signal
Linearity**| linear
**Low Detection Limit*| 40 ppb
ELECTRICAL**
Recommended Load
Resistor| 68 Ω
Sensor Bias Voltage| no bias (without board)
Power Supply Required| 5 Vdc (with board)
Power Consumption| 370 mA @ 5 Vdc (with board)
MECHANICAL
Weight| without board: < 22 g
with board: < 30 g
Outer Plastic Body
Material| polycarbonate
Sealing Gasket
Material| TPU
Contact Material| mild steel with gold flash-over nickel plate
Orientation Sensitivity| none
ENVIRONMENTAL
Operating
Temperature Range| -30°C to 50°C
Recommended
Storage Temperature| 0°C to 20°C in an original sealed container
Operating Humidity
Range| 15% RH to 90% rH
non-condensing
Operating Pressure
Range| atmospheric ±10%
Typical Applications| ambient environmental monitoring
LIFETIME
Storage Life| 6 months in original sealed container
Long-Term Sensitivity
Drift*| < 10% signal loss per annum
Expected Oper. Life| two years in air
Warranty| one year
*Specifications are valid at 20°C, 50% RH, and 1013 mbar using AQ3 low noise board. Performance characteristics outline the performance of sensors supplied within the first 3 months. The output signal can drift below the lower limit over time. Please be aware that sensors’ performance is also reflected by circuit board design.
** Linear through the concentration range across the whole operational
environment range.
All tolerances ±0,15 mm unless otherwise stated
Product Dimensions
Dimensions mm.
All tolerances ±0,15 mm unless otherwise stated
Pin Definition
1| Vin
(4.8 V ~ 5.5 V)
---|---
2| GND
3| Aux
4| GND
5| Sensing
Filter Information
Removes acid gases such as SOx/NOx and H2 S
Poisoning
Gas sensors are designed for operation in a wide range of environments and
harsh conditions. However, it is important that exposure to high
concentrations of solvent vapors is avoided, 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 sensor as the solvent may cause crazing of
the plastic.
Cross Sensitivity Table
Whilst AQ3 Series gas sensors 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.
IMPORTANT NOTE: The cross-sensitivity data shown below does not form part
of the product specification and is supplied for guidance only. Values quoted
are based on tests conducted on a small number of sensors and any batch may
show significant variation. For the most accurate measurements, an instrument
should be calibrated using the gas under investigation.
| Gas | Gas Concentration | Cross Interference |
|---|---|---|
| Sulfur Dioxide (SO2) | 5 ppm | 0%<x%<7% |
| Nitrogen Dioxide (NO2 ) | 5 ppm | -3%<x%<5% |
| Ozone (O) | 1 ppm | -7%<x%<4% |
| Isobutylene (C4 H8 ) | 1 ppm | ~None |
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective
materials and faulty workmanship during the applicable warranty period.
Honeywell’s standard product warranty applies unless agreed to otherwise by
Honeywell in writing; please refer to your order acknowledgment or consult
your local sales office for specific warranty details. If warranted goods are
returned to Honeywell during the period of coverage, Honeywell will repair or
replace, at its option, without charge those items that Honeywell, in its sole
discretion, finds defective. The foregoing is the buyer’s sole remedy and is
in lieu of all other warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no event shall
Honeywell be liable for consequential, special, or indirect damages.
While Honeywell may provide application assistance personally, through our
literature and the Honeywell website, it is the buyer’s sole responsibility to
determine the suitability of the product in the application. Specifications
may change without notice.
The information we supply is believed to be accurate and reliable as of this
writing.
However, Honeywell assumes no responsibility for its use.
WARNING
MISUSE OF
DOCUMENTATION
-
The information presented in this product sheet is for reference only.
Do not use this document as a product installation guide. -
Complete installation, operation, and maintenance information is provided in the instructions supplied with each product.
Failure to comply with these instructions could result in death or serious injury.
SAFETY NOTE
This sensor is designed to be used in environmental applications. To ensure
that the sensor and/or instrument in which it is used, are operating properly,
it is a requirement that the function of the device is confirmed by exposure
to target gas (bump check) before each
use of the sensor and/or instrument.
Failure to carry out such tests may jeopardize the safety of people and
Property.
FOR MORE INFORMATION
Honeywell Advanced Sensing
Technologies service its customers through a worldwide network of sales
offices and distributors. For application assistance, current specifications,
pricing or the nearest Authorized Distributor, visit our website or call:
USA/Canada +1 302 613 4491
Latin America +1 305 805 8188
Europe +44 1344 238258
Japan +81 (0) 3-6730-7152
Singapore +65 6355 2828
Greater China +86 4006396841
Honeywell
Advanced Sensing Technologies
830 East Arapaho Road
Richardson, TX 75081
sps.honeywell.com/ast
AQ3CO Datasheet ECN 5062 | 002722-1-EN | 1 | 05/21
© 2021 Honeywell International Inc.
References
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