Datalogging

Overview

We often need to measure environment parameters such as temperature or humidity to gather factual data on what is actually happening with air conditioning equipment. Instantaneous data measurements provide a quick snapshot of the parameter(s) in question, but they can often be misleading – especially if the reading is a “blip” or freak that does not reflect the normal conditions. With datalogging we can monitor conditions in real-time and develop useful graphs. Datalogging over a period of time such as a day or week will show the trend of the measured parameter, meaning that non-typical readings are quickly spotted and accounted for. In addition, the trend graph is a valuable trouble-shooting aid, because specific measurements are related to time and so can be compared with other events happening at the same time.

Airlab Solution

At Airlab we have a wide range of logging equipment, to enable us to measure most parameters involved in monitoring heating, ventilation and air conditioning. We have the instruments to monitor:

• Temperature
• Humidity
• Carbon dioxide
• Carbon monoxide
• Pressure
• Differential pressure
• Flow
• Velocity
• Current

Once the data has been logged, it is downloaded from the logger to a computer for spread-sheet analysis and graphing. This can then help to form a picture of how the equipment is performing and can be used to develop reports on conditions or to investigate problems.