Michell Instruments

A correctly calibrated humidity instrument is essential to ensure that measurements are reliable – but there is a lot of confusion as to what ‘calibration’ actually is. Contrary to popular belief, it is NOT about adjusting an instrument to read correctly.

Read our latest article ‘What are the types of moisture calibration?’ to discover exactly what is meant by ‘calibration’, why it is so important and the different options that are available.

Types of Moisture Calibration Moisture or dew point calibration is the process of comparing a measuring instrument against an authoritative reference to identify any bias or systematic error in the readings. The reference instrument in any humidity calibration should be between 4 and 10 times as accurate as the instrument under....

When calibrating humidity sensors, simply monitoring the readings of the sensors under test against the set point on the generator is not enough. These generators only use mixing techniques and they cannot produce a definite dew point. To correctly assess the performance of a humidity sensor, you need a reliable, fundamental reference measurement to use as a comparison.

Michell Instruments’ high-precision chilled mirror hygrometers measure a primary characteristic of moisture – the temperature at which condensation forms on a surface. This means that they are inherently repeatable and ideal for calibration laboratories looking to achieve low measurement uncertainties. Read more: https://bit.ly/3CmeFgd

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Chilled Mirror Hygrometers as Reference Instruments Having a reliable humidity standard ensures accurate calibrations. Chilled mirror hygrometers are highly accurate, even down to -100 °C frost point.

For many industrial trace moisture measurements, dew-point transmitters are the ideal choice. They are low cost, easy to install and robust enough to withstand the tough environments. This includes measuring moisture at line pressure, operating at high ambient temperatures or in hazardous areas. They are mostly used in applications where measuring the water dew point in a gas is crucial to protect equipment or ensure the quality of products. To get the best accuracy from your dew-point transmitter you need to understand how the different types of transmitter work, and how each is suited to specific applications. We cover all this in our latest blog post: How accurate is your dew-point transmitter? Follow the link to find out more. https://bit.ly/3l1shHv

How accurate is your dew-point transmitter For many industrial trace moisture measurements, dew-point transmitters are the ideal choice. Learn how the different measurement technologies affect performance depending on application.

Tunable diode laser spectroscopy (TDLAS) and metal oxide moisture sensors are both popular and effective measurement techniques for controlling moisture in natural gas. They each offer benefits and advantages over the other so choosing the most effective option for your process depends on exactly how you are intending to employ the moisture analyzer and the outcomes you want.

Read our guide to discover the different characteristics of each measurement technology and their relative strengths for specific applications within natural gas processing. https://bit.ly/3r0239l