Online trace moisture measurement systems

High accuracy, market-leading sensing technology combined with a variety of trace moisture analysers to deliver reliable, high-performance and user-friendly trace moisture measurement systems.

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How our online solutions work

Our range of cost-effective online solutions provides reliable performance and continuously high accuracy, adding significant operational and commercial advantages to your online processes.

These systems are suitable for hazardous and non-hazardous area process applications for measuring trace moisture in process gases and compressed air.

Designed for easy operation, our online trace moisture measurement systems combine advanced functionality with the unique benefits of our advanced moisture sensing technology and range of powerful trace moisture analysers.

We supply a choice of transmitter and display combinations depending on your application requirements — from our standard plug-and-play displays such as the DIS030, to displays with advanced functions and features like the DS4000. We customise the solution according to your needs — choose from stand-alone systems or simultaneous continuous multi-location monitoring with MODBUS (RTU) communications.

Our online dewpoint systems are offered with various dewpoint ranges between -120 °C to +20 °C (-184 °F to +68 °F) dewpoint and are configurable in equivalent measurement units: ppm(V), ppb(W), g/m³ or lb/MMSCF to display accurate real-time data.

Versatile and durable, with no complex setup, our online dewpoint systems are simple to integrate and easy to install — with little or no maintenance required during routine use.

Key features of the range include:

Easy to use, reliable and efficient.

Ultra-high capacitance moisture sensing technology.

Guaranteed accuracy of ± 2 °C (± 3.6 °F) dewpoint traceable to National & International Humidity Standards.

Dewpoint ranges offered between -110 °C to +20 °C dewpoint.

Desiccant dry-down technology ensures the dewpoint sensor remains dry between tests for a quick response time.

AutoCal span correction function ensures optimum accuracy between laboratory calibrations.

Additional features include:

Both general-purpose and intrinsically safe models are available.

Choice of measurement units in °C or °F dewpoint and absolute values in ppm(v), ppm(w), mg/m³ or lb/MMSCF (depending on model).

Digital display with intuitive menu structure and choice of interface languages, making it easy to use, view and set user preferences.

Supplied with a calibration certificate traceable to National & International Humidity Standards.

Strong, durable, rugged construction

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Key Applications

Our online trace moisture measurement systems are employed across a range of critical industries due to their speed and accuracy, ensuring the safety and efficiency of a variety of applications through accurate continuous trace moisture measurement:

AerospaceFor the production of high-specification aeronautical parts, vacuum furnace heat treatment with dry argon is essential, and NADCAP mandates the testing of welding shield gas at the torch head for dryness. Our online systems provide continuous trace moisture measurement, ensuring the feed gas for shielding stays within the required moisture content range, maintaining ideal conditions.

Breathing AirHigh moisture levels in breathing air, as used in diving, firefighting, and defence applications, pose health risks and discomfort. Moisture condensation from high humidity levels in compressed air can lead to blocked airlines or cylinder corrosion, with potentially fatal consequences. Our online trace moisture measurement systems allow for the continuous monitoring of trace moisture throughout the pipe network.

Food and BeverageMoisture control is critical in the food and beverage industry to prevent food quality loss. Packaging foods in an atmosphere of dry gases like Nitrogen and carbon dioxide extends shelf life. Our online systems enable continuous trace moisture measurement, reducing waste and carbon footprint.

HDPE ProductionEthylene and propylene, key for manufacturing chemicals and plastics, require precise moisture content monitoring for polymerisation efficiency and catalyst yield. Our online trace moisture measurement systems ensure process optimisation, product quality, and reduced maintenance costs by providing accurate and consistent trace moisture measurements.

Injection MouldingMoisture adsorbed on plastic pellets can lead to extrusion failures and quality degradation. Our online trace moisture measurement systems measure trace moisture in the circulating air to detect possible dryer failures, enhancing process efficiency and reducing costs.

Medical GasesIn medical applications, compressed air and gases must be clean and almost sterile, free from contaminants including water vapour and bacteria. Our online trace moisture measurement systems offer permanent moisture monitoring in air/gas lines, which is essential for maintaining safe patient care environments.

Natural Gas and LNGThe liquefaction and regasification processes in natural gas supply are crucial for global energy distribution. Moisture presence poses risks of pipeline and valve freezing. Installing an online trace moisture measurement system ensures accurate trace moisture measurement, safeguarding gas quality and system integrity.

PharmaceuticalsIn pharmaceutical manufacturing, accurate moisture determination is crucial for product consistency and quality. Our online trace moisture measurement systems provide fast, repeatable, and accurate online dewpoint control, essential for the control of blanketing gases.

Power GenerationEnergy production priorities include safety, cleanliness, and efficiency. Our online systems accurately measure trace moisture, protecting equipment, reducing costs, and improving efficiency in power generation processes.

Welding GasesDifferent welding processes require specific inert gases for atmospheric shielding. Our online trace moisture measurement systems continuously measure moisture to ensure feed gas used for shielding remains within the specified range, maintaining optimal conditions for welding.

Whatever the challenge, you can rely on Alpha Moisture Systems

If you require a customised trace moisture measurement solution, book a consultation with our expert technical team and find out how you can increase the efficiency and productivity of your operations.

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