Compressed Air Quality


Compressed air quality refers to the degree to which compressed air is free from contaminants and impurities, such as dust, oil, water, and microorganisms. The quality of compressed air is important because it can have significant implications for the safety, efficiency, and reliability of compressed air systems and the processes they support.

The quality of compressed air is typically measured according to various standards, including the International Organization for Standardization (ISO) 8573-1 standard, which sets limits on the levels of contaminants in compressed air. The standard specifies three categories of contaminants: solid particles, water, and oil, and assigns each category a specific level of maximum allowable concentration.

The quality of compressed air can be affected by various factors, including the design and operation of the compressed air system, the quality of the compressed air source, and the maintenance and upkeep of the system.

To ensure high-quality compressed air, it is important to implement effective air treatment and filtration systems, including the use of filters, dryers, and separators, to remove contaminants from the compressed air. In addition, regular maintenance of the compressed air system and its components, including filters, dryers, and compressors, can help to ensure that the system is operating effectively and delivering high-quality compressed air.

Maintaining high-quality compressed air is essential for a range of applications, including food and beverage processing, pharmaceutical production, and medical and dental procedures, where the presence of contaminants can pose a significant risk to product quality and patient safety. In addition, high-quality compressed air can improve the efficiency and reliability of compressed air systems, reduce maintenance and repair costs, and improve overall system performance.


Compressed air quality monitoring refers to the process of continuously measuring and monitoring various parameters of compressed air, such as  moisture content, oil, and particulate levels, to ensure that it meets quality standards and is suitable for its intended use.

Continuous monitoring of compressed air quality helps to ensure that the compressed air remains safe and suitable for use, and that any issues or deviations from standards are quickly detected and addressed. This can help prevent equipment problems and improve the overall efficiency of the compressed air system.

Product contamination can ruin a business and harm its customers. The typical approach of spot checks and random testing of compressed air systems does not allow businesses to quickly react to contamination events, nor does it provide continual assurance that contamination levels are being kept under control. In the ever quickening change of production, real time monitoring is crucial to protect your products integrity.
The 601 Series Compressed Air Quality Analyzer, measures and monitors contaminants in real time, giving businesses confidence that its products and customers are protected.
The 601 series Compressed Air Quality Analyzer brings together state of the art technology in one easy to use package, allowing businesses to continuously monitor compliance to ISO 8573.

The 601 monitors particle, dew point and oil vapor contamination across the full spectrum of ISO 8573 requirements including Class 0. Real time information can be retrieved from the 601 by SCADA systems via MODBUS outputs. The integrated color touch screen display allows users to view all information locally.
The data logging function ensures records are kept intact. Alarm points can be set to trigger in the event that contaminants hit your selected limits. An optional external light or siren can be fitted to the alarm.
The 601 is quick and easy to install, just connect the unit to power and the compressed air supply.

• Particle concentration measurement
– Channel sizes: 0.3 … 0.5, 0.5 … 1.0, 1.0 … 5.0 μm (A)
0.1 … 0.5, 0.5 … 1.0, 1.0 … 5.0 μm (B)
– Laser particle counting technology
– Counting efficiency: 50% for smallest size 95% for all other sizes
• Oil vapor measurement
– Latest PID sensor technology
– Range from 0.003 … 10.000 mg/m3
– High precision: 5%
• Dew point measurement
– Dual sensor technology (Polymer and QCM)
– Wide measuring range of -100° … +20°C
– High precision of ±2°C
• Pressure measurement
– Measuring range 0.3 … 1.5 MPa
– Accuracy of 1% FS
• Compressed air connection through 6 mm quick connect
• Ethernet (Modbus TCP), RS-485 (Modbus RTU) and USB interface
• Low purge air loss
• 100 … 240 VAC power supply
• 5” color touchscreen with data logger