According to Testo , compressed air is one of the most expensive forms of energy supply for industrial applications. Not only because of the excessive installation costs for compressors, dryers and pipe work but also due to high operating and maintenance costs.
The challenge of reducing operating costs is therefore an important but challenging area. In addition, service managers must be aware of corrosion, leaks, blocked outlets and ice build up, all of which could cause breakdowns and the costs associated with repair and system downtime.
The testo 6740 pressure dew point transmitter enables users to reduce the operating costs and at the same time helps to protect the compressed air system from moisture damage, therefore reducing maintenance costs.
Although most compressors and dryers are able to run in partial mode this option is often not used as a suitable control facility is missing and the dryers are therefore time controlled. Running a dryer based on time control can mean that drying phases are longer than they need be which results in excessive operating costs.
In order to switch to running dryers on demand, service engineers need an accurate and reliable method of continuously monitoring the humidity level in compressed air. An output transmitter such as the testo 6740 at the dryer outlet can be used to control the operation of the dryer or could be used to control the valves of an adsorption dryer if the humidity level is low enough, ensuring high quality air and preventing moisture damage to the system.
Monitoring instruments like the testo 6740 can also help to increase the lifetime of compressed air installations and reduce the costs associated with servicing and spare parts. The costs associated with system downtime and wastes from poor quality product are also reduced.