DMP80 DRYCAP® handheld probe for dew point and temperature
For spot-checking and calibrating dew point measurements
Application
Metal Heat Treatment
Measuring dew point in furnace gas
Content from Vaisala · retrieved on View the original source
Successful metal heat treatment requires dew point measurement
Are you involved with industrial processes such as sintering, brazing, annealing or some other metallurgic process? Metal heat treatment is a complex and critical process that requires precise control of the furnace atmosphere.
The moisture content in the furnace atmosphere affects the quality and consistency of the heat treatment process, as well as the properties and performance of the final products. Therefore, it is essential to measure and control the dew point of the furnace atmosphere accurately and reliably.
What does it take to measure dew point in metal heat treatment furnaces?
Dew point is the temperature at which water vapor in a gas condenses into liquid water. It indicates how much moisture is present in a gas. A low dew point means a dry gas, while a high dew point means a moist gas. Different heat treatment processes require different dew point levels depending on the type of metal and the desired outcome.
Because of the wide variety of thermal heat treatment processes, target dew point temperatures can range from –60°C (–76°F) to elevated levels of +35°C (95°F) and even higher. Due to the extremely high oven process temperatures typically involved in heat treating, a sampling line from the furnace to the dew point probe is normally required to cool the process gas before reaching the sensor.
Vaisala DRYCAP®: The ultimate solution for dew point measurement in metal heat treatment applications
To measure dew point reliably in the sampling line, you need high-quality dew point measurement instruments and sample cells that can withstand the demanding conditions. They need to be leak-tight, easy to install and maintain, and compatible with various types of furnaces and gases. Moreover, the instruments provide accurate, stable, and fast readings that can be transmitted to a display or a control system.
Vaisala DRYCAP® dew point measurement instruments meet the criteria for high-quality metal heat treatment applications. Find the instrument options with DRYCAP sensor technology below.
Instruments
Indigo300 Transmitter
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Notes and publications
Dew Point in Metal Heat Treatment
Why the furnace atmosphere's moisture defines heat treatment quality, which dew point ranges are controlled depending on the process, and how to…
Segment
Manufacturing and Industrial Processes
Instrumentation, continuous monitoring and services for manufacturing plants and industrial processes: dew point, humidity, temperature and CO2…
One unit of an ecosystem
Each AKRIBIS One unit serves one part of the measurement cycle; together they cover it end to end.
A question about your measurement
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