Service Contracts

Audits

Airtec’s compressed air audits provide a 7 day overview of a compressed air system. The audit requires the introduction of a 4 – 20mA pressure sensor into the air system and the installation of an amp clamp meter onto one of the compressor incoming phases. This will provide a precise record of any fluctuations in energy and pressure, the data is sampled every 5 seconds and stored on the audit device hard drive. On completion the data is transferred to software where the equipment data is added, once completed a file is opened and several  KPI can be tracked such as pressure range, kW consumed, efficiency of the system, load/unload times and during none production the amount of air required to maintain system leakage.

In addition to the basic criteria we can add any sample which can be transferred to a 4 – 20mA signal. This is useful not just for audits but for fault finding and eliminating certain equipment from a spurious fault. There is also the facility to monitor the system for up to 30 days should your site require this facility providing a very broad and comprehensive report on air usage.

By far the biggest benefit of air audits is to reduce energy consumption. An audit can provide vital information that enables Airtec to identify key areas of improvement within your compressed air system.

Saving Areas.

Based on hundreds of Airtec audits, we find that many compressed air systems have great potential for cost savings. See the chart below for some of the common problems and areas of saving.

90% Have a high network pressure

80% Have problems with their air treatment systems

70% Have piping work which is under-sized

20% Have problems with their network structure and layout

50% Have under-sized receivers

80% Have inefficient control of multi-compressor stations

100% Have inefficient control of de-centralised systems

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