Planning a DOCA Sensor Pilot in One Production Cell

A pilot installation gives an Australian production site a controlled way to assess the DOCA sensor before committing to a plant-wide rollout. Instead of changing the entire compressed-air network at once, the project team can monitor one representative production cell, validate the readings and confirm how the instrument fits daily operations.

The DOCA technology is designed to detect oil contamination in high-purity compressed air across liquid, aerosol and vapour forms. That makes a carefully selected pilot valuable for pharmaceutical manufacturing, hospitals, electronics, automotive production, chemical processing, textiles and clean-room environments where a small contamination event can affect product quality, equipment reliability or regulatory standing.

Select a representative production cell

The best pilot location is a cell that reflects the risks and operating conditions of the wider plant. Consider the compressor arrangement, filtration stages, receiver capacity, dryer type, distribution pipework and point-of-use equipment. A cell with a history of filter changes, unexplained odour, pressure instability or maintenance concerns may provide useful evidence, but it should still be safe and operationally stable enough to support meaningful testing.

Australian facilities often have mixed equipment installed over several decades, particularly across industrial estates in Melbourne, Sydney and Brisbane. A newer clean production area may sit downstream of older galvanised pipework or shared compressors. Mapping the local air system before installation helps identify whether the sensor is measuring the intended cell or an upstream influence.

Define the pilot objectives

A pilot needs measurable objectives rather than a general aim to “check the air”. The team might seek to establish a baseline oil-contamination profile, compare readings before and after filter servicing, identify contamination during compressor changeover, or verify performance during peak production and cleaning cycles.

Set acceptance criteria before collecting data. These may include sensor availability, stable communication, repeatability against laboratory or reference methods, response to a controlled maintenance event and compatibility with the site’s quality-management process. Where the air supports pharmaceutical or medical production, the validation plan should align with the site’s GMP framework and relevant compressed-air quality requirements, including ISO 8573 considerations.

Confirm the installation design

The sensor location should provide a representative sample without creating an avoidable pressure drop or exposing the instrument to unsuitable vibration, heat or moisture. Review the sampling point, isolation valves, tubing, drains, filtration arrangement and access for calibration or service. The installation should also distinguish between oil entering as liquid, aerosol or vapour, since each form can behave differently through the air-treatment system.

Australian sites commonly operate on 240 V, 50 Hz electrical supply, but the pilot still needs a documented check of power, earthing, enclosure rating and communications access. In a dusty factory, a washdown area or a high-care room, the enclosure and installation method must match the environment. Coordinate the work with the electrical contractor, automation team and production supervisor rather than treating it as a standalone instrument fit-out.

Plan data collection and verification

The pilot should run through normal production conditions, planned shutdowns and foreseeable disturbances. Record compressor loading, dryer status, filter differential pressure, ambient temperature, humidity, production batch and maintenance activity alongside the optical sensor output. This context makes it easier to distinguish a genuine contamination event from a process change or sampling issue.

Use an agreed verification method at defined intervals. Samples may be sent to an appropriately equipped laboratory, while maintenance records and filter inspections provide supporting evidence. For Australian operations, involving a NATA-accredited laboratory where suitable can strengthen the technical file and help quality teams assess the results with confidence. Store raw data, alarms, calibration details and intervention records in a controlled location.

Involve operations and compliance teams

Operators should know what the sensor indicates, what an alarm means and who has authority to pause production or investigate the air system. A short toolbox talk can cover safe isolation, alarm escalation, access restrictions and the difference between an alert and a confirmed product-risk event. Use plain language familiar to local crews: the system should be easy to “have a yarn about” during a shift handover, not something understood only by engineers.

Include quality assurance, maintenance, engineering, IT or controls, and procurement from the start. The wider DOCA project partners network can also provide useful context on technology development and industrial application. At a hospital or pharmaceutical site, the validation owner may need to approve the protocol before installation, while an automotive or chemical plant may prioritise uptime, traceability and integration with existing SCADA alarms.

Evaluate results before expanding

At the end of the pilot, review technical performance and business value together. Assess the number and significance of alarms, data continuity, service workload, installation cost, operator response and any effect on production. Compare the findings with the original acceptance criteria and document unresolved questions rather than assuming that a quiet monitoring period proves the air system is permanently clean.

A rollout decision should account for different cells and operating regimes. A second high-risk area may be warranted before full deployment, especially where several compressors feed a long distribution network. Regional Australian sites may also need a practical plan for spare parts, technician travel and remote support, while metropolitan plants can focus more heavily on integration with existing building-management or quality systems.

Practical pilot preparation checklist

• Map the compressor, dryer, filters, receiver and point-of-use equipment serving the selected cell.
• Record baseline pressure, flow, temperature, humidity and production conditions.
• Approve the sampling point, electrical supply, isolation method and communications pathway.
• Define alarm thresholds, response responsibilities and product-impact escalation rules.
• Schedule installation around a planned shutdown and brief affected operators.
• Prepare a final report comparing sensor data, reference testing and rollout requirements.

A well-run single-cell trial turns an unfamiliar monitoring technology into evidence that production, engineering and quality teams can use. Prepare the site data, agree the verification method and schedule the installation with enough time to observe ordinary operations as well as planned maintenance. Begin with one representative cell, then use the results to build a defensible path for broader deployment of DOCA across the facility.