Continuous dew point
monitoring system
Enabling manufacturers to comply with CQI-9 and NADCAP
requirements with continuous monitoring of sintering atmosphere
Benefits of the system
• Continuous online monitoring
• Reliable and low maintenance
• Remote online data
• CQI-9/NADCAP enabler
Expertise beyond gas production and delivery.
Dew point (DP) is a measure of the filtering systems and on sensors. As Continuous dew point monitoring
moisture level in a furnace atmo- a result, dew point readings can drift helps manufacturers comply with
sphere. In the various zones of a significantly, causing erroneous mea- CQI-9 and NADCAP requirements, and
sintering furnace, the atmosphere surement and necessitating frequent enables operators to plan ahead for
can vary widely from a relatively cleaning, recalibration, and sensor shutdowns and preventive mainte-
wet, oxidizing atmosphere in the replacement. Temperature variations nance of their furnaces.
pre-heat zone to a dry, reducing within the sampling unit can also
atmosphere in the hot and cooling impact the accuracy of the sensors.
zones. Maintaining the appropriate
atmosphere composition in each zone These issues can be mitigated by
is critical to achieving the desired incorporating design features, such
delubrication and consistency of the as an automated self-cleaning and
sintered product. sensor calibration process, along with
temperature control of the sensor and
Dew points of –35 to –45°C (–31 to the sampling system, to maintain
–49°F) are typically desired in the hot accurate consistency of the measured
zone to ensure carbon control and a dew point level. Drifts and changes in
good sinter. Continuous monitoring of dew point that are reported through
the dew point in the hot zone can be local monitoring/alarms or remotely
challenging. Particulate and vapor- through cloud server access can also
phase contaminants in the sample gas help to address furnace operational
stream can potentially accumulate in issues quickly and efficiently.
System installation
Optimizing your production efficiency for today and tomorrow
We can help you achieve more cost-effective operations, improve safety and
environmental compliance, and give you added flexibility to compete in the
global marketplace. Audits are available to help our customers realize all
the benefits of industrial gases in their operations. Our Air Products team
has the experience to conduct process reviews and gas supply system sizing
evaluations, as well as provide safety recommendations.
Depend on a worldwide leader
For 75 years, customers around the world have come to rely on Air Products’
industrial gases, gas atmospheres, equipment, and technical support to help
improve product quality, reduce operating costs, and increase productivity.
To learn more about how Air Products can help heat treaters optimize their
manufacturing processes, visit: airproducts.com/dewpoint
For more information,
please contact us at:
Corporate Headquarters
Air Products and Chemicals, Inc.
7201 Hamilton Boulevard
Allentown, PA 18195-1501
T 800-654-4567
F 800-272-4449
gigmrktg@airproducts.com
tell me more
airproducts.com/dewpoint
© Air Products and Chemicals, Inc., 2016 (39747) 330-16-014-US
