Glass manufacturing quality through moisture control

Measure dew point in blanketing atmosphere with Vaisala DRYCAP® sensor technology

During the plate glass manufacturing process, molten glass is very sensitive to moisture and is typically run under blanketing atmospheres where moisture is carefully monitored. The higher the quality of the glass, the more essential accurate moisture control becomes.

Dew point measurements are often made in harsh conditions with high temperatures and volatile chemical vapors. Due to the unique design of Vaisala’s DRYCAP® sensor, it is immune to most chemical contaminants found to offgas from this process.

DRYCAP technology tackles contaminants

DRYCAP is based on two innovations: the proven capacitive thin-film polymer sensor and the auto-calibration function. The sensor is heated at regular intervals during the automated auto-calibration procedure. The humidity and temperature readings are monitored as the sensor cools to ambient temperature, with offset correction compensating for any potential drift. This enables the DRYCAP sensor to deliver accurate measurements in demanding processes such as glass manufacturing, dramatically reducing the need for sensor maintenance.

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Instruments for measuring dew point in glass manufacturing

Probe head and probe body of the DMP6 for very high temperatures

Dew Point Probe DMP6

Vaisala DRYCAP® Dew Point and Temperature Probe DMP6 is designed for in-line humidity measurement in industrial drying applications with very high temperatures and a wide dew point range.
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Vaisala Insight Software gives quick access to the configurations and data of the Indigo family measurement probes and other supported devices.

Insight PC Software

Vaisala Insight PC Software gives quick access to the configurations and data of the Indigo family measurement probes and other supported Vaisala devices.
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Indigo520 with probe

Indigo500 Series Transmitters

The Vaisala Indigo500 series transmitters are host devices for Vaisala Indigo-compatible, stand-alone smart probes. The Indigo500 series include multi-functional Indigo520 transmitter and Indigo510 transmitter with basic features.
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Glass manufacturing measurement resources

Expert article

Dew point temperature – What does it mean and how can it be calculated?

Following on from our previous post on relative humidity (RH), let’s look at the second most commonly used  humidity parameter – dew point temperature.

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Expert article

How to choose the right instrument for measuring humidity and dew point

Humidity measurement and control is called for in a wide variety of industrial applications. Each application has a different set of requirements for humidity instruments, such as required measurement range.

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Blog

Do I need an Indigo transmitter or just an Indigo probe?

There are many probe options to choose from measuring several parameters: humidity, temperature, dew point, CO2, moisture in oil, and vaporized hydrogen peroxide. The probes can be attached to Indigo500 or Indigo200 series transmitter. When is a probe sufficient on its own – and when do you need both a probe and a transmitter?

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Blog

Built to survive, even outside: the Vaisala Indigo500 Series

Some of our customers have applications that require measurement transmitters to be installed outside, so the Vaisala Indigo500 and its family of smart probes have been designed to be durable enough for these kinds of rough, tough conditions.

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