DOCUMENT PURPOSE

This document should be used in conjunction with the AQ3STF Characterization Note and the Product Safety Datasheet (PSDS 19).
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 AQ3STF Characterization Note.
Output signal can drift below the lower limit over time. For guidance on the safe use of the sensor, please refer to the Operating Principles.

FEATURES AND BENEFITS

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - FEATURES AND BENEFITS

TECHNICAL SPECIFICATIONS

MEASUREMENT

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - MEASUREMENT

ELECTRICAL

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - ELECTRICAL

MECHANICAL

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - MECHANICAL

ENVIRONMENTAL

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - ENVIRONMENTAL

LIFETIME

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - LIFETIME

*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. Output signal can drift below the lower limit over time. Please be aware that sensors’ performance also reflected by circuit board design.
** Linear through the concentration range across the whole operational environment range.

Product Dimensions

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - Product Dimensions

Filter Information
To remove H2S and HCl

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.

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor - Cross Sensitivity Table

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 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 web site, it is 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 iconWARNING 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.

Stop iconSAFETY 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 services 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

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AQ3STF Datasheet ECN 5062 | 002724-1-EN | 1 | 05/21
© 2021 Honeywell International Inc. All rights reserved.

Documents / Resources

Honeywell AQ3STF SENSOR Sulfur Dioxide (SO2) Gas Sensor [pdf] User Guide
AQ3STF SENSOR, Sulfur Dioxide SO2 Gas Sensor

References

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