Reducing energy consumption...

... in every compressed air system

Examples:		€/Year
Example typical for the following parameters: Single-shift operation (2000 operating hours) Compressed air system comprising 3 compressors (1 x SM 8, 2 x ASK 32) with cascade pressure adjustment (1 bar) Pressure control with "SAM": ± 0.1 bar Possible pressure reduction (Pmin) in shift operation: 0.5 bar Previous total compressor loading: 75 % (without master control system) Energy price: 0.10 €/kWh
1. Precision pressure control saves energy The Sigma Air Manager's precision pressure control system enables compressors to operate at a lower pressure than is possible with cascade control. This provides energy savings of approximately 8 % - in the quoted example that equates to € 560.		– 560,- Saving
2. Downstream pressure transducer Energy consumption can be reduced by approximately 2 % by locating the pressure sensor downstream from the air treatment equipment e.g. refrigeration dryers, filters etc. In our example this translates into a saving of approx. € 140.		– 140,- Saving
3. Pressure reduction The compressors only compress to the pressure actually required. From experience this enables a further 5 % reduction in energy consumption. In this example, this totals approximately € 350.		– 350,- Saving
4. Automatic shutdown of the compressors at night and at weekends Using its programmable timer, the Sigma Air Manager automatically shuts down the compressors when compressed air production is not required e.g. after business hours and at weekends. By switching the compressors off, energy consumption is significantly reduced and losses due to air leakages are virtually eliminated. Air leakage rates often account for up to 20 % of total compressed air consumption. In this particular example, the saving amounts to € 4740.		– 4740,- Saving
Of course the time-controlled shutdown feature is not relevant for compressor systems operating over two or three shifts. However, a reduction in system pressure is often advisable for such installations and this task can be carried out via the Sigma Air Manager's integrated timer. This feature enables typical energy savings of approx. 8%.
Total saving (for quoted example): The Sigma Air Manager SAM 4/4, for example, can pay for itself within a year. Over ten years, you can save tens of thousands of Euros in energy costs with a Sigma Air Manager!	5 790 €/Year Total saving