Using energy efficiently helps organisations save money as well as helping to conserve resources and tackle climate change. ISO 50001 supports organisations in all sectors to use energy more efficiently, through the development of an energy management system (EnMS).
With it currently under under revision, businesses should focus on hard data when making energy management decisions.
Data loggers are essential tools for the measurement, documentation and reporting of energy use and consumption.
During industrial and office energy audits, they are used to monitor electrical power consumption and heating, ventilation, and air conditioning (HVAC), system efficiency by recording measurement data related to current, voltage, temperature, humidity and air flow. Such measurements are captured in intervals, providing an accurate survey of energy consumption and use over time.
PCE Instruments has a range of data loggers for the effective energy auditing of industrial plants, manufacturing floors, climate-controlled storage facilities, research laboratories, office buildings and more.
It suggests considering a range of features before purchase:
Measurement accuracy
When monitoring HVAC efficiency in an office space, users may require a temperature measurement accuracy of +/- 2 degrees. However, monitoring HVAC efficiency in a warehouse storing temperature-sensitive products, may require a much greater accuracy.
Memory or storage capacity
Memory size relates to the maximum number of readings a data logger can record. Take into account the length of time required for the audit. Bear in mind that if data recorders are used with different input channels, the maximum memory capacity only refers to the total - so may need to be divided by the number of channels.
Data access
A data logger with an RS 232 interface, USB port or SD memory card allows for convenient data transfer to a computer via a cable, flash drive or SD card reader. Web-based data loggers allow remote access, but typically come at a premium price.
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