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Portable devices bring new versatility to dewpoint measurement

2018-01-12

Portable devices are helping maintenance and operations professionals throughout the process industry sector work more efficiently by monitoring multiple systems, lowering costs, and improving product quality.

For example, portable dew point meters can quickly monitor a plant¡¯s compressed air supply system and verify air dryer performance by accurately measuring dewpoint.

Uncontrolled moisture in your air supplies may damage pneumatic controls, tooling, and finished products. To combat this, regenerative desiccant dryers such as pressure swing and heater type, as well as refrigerant dryers are often used to remove or reduce moisture from compressed air supplies.

For spot-check measurements, a hand-held, battery-operated, portable dew point meter can be specified. These devices enable technicians to verify air dryer performance on the factory floor, as well as check the accuracy of the dewpoint sensor installed on the dryer. The devices can also measure moisture at any point throughout the plant¡¯s compressed air system.

In addition to its on-line (stationary) dewpoint measurement instruments,SIDPH offers two portable dew point meter models that not only monitor your air dryer, but also spot-check your air system throughout the plant.  This means that you can observe ¨C not guess ¨C your facility¡¯s air system performance. Better dewpoints result in:

Improved system efficiency

Less dryer usage

Lower energy costs

Using either an on-line or portable dew point meter to measure moisture content at the dryer outlet offers a way to track dryer performance.

Two primary compressed air sampling methods, Direct Insertion or a Sampling System, are used in moisture measurement. The preferred sampling method for either an on-line or a portable dew point meter is the sampling system.  In this method, measurements may be made either at full line pressure or at atmospheric pressure, depending on preferred working practice.  In certain cases, properly positioning the flowmeter and pressure regulator will facilitate measurement. An appropriately scaled flowmeter after the sensor continuously indicates that an adequate flow rate is achieved across the sensor. Sampling arrangements for a portable hygrometer would be much the same, and SIDPH Instruments can provide ready-made solutions with its portable dew point meters.

These portable devices¡ªplus SIDPH¡¯s range of quality stationary dew point meters¡ªenable professionals in industries from semiconductors to electric power generation combat moisture and improve efficiency.