In what type of environment should a meter be started?

Starting a meter in fresh air is the correct approach for ensuring accurate readings and maintaining safety. When meters, such as gas detection devices, are calibrated or initiated in a fresh air environment, they can establish a baseline measurement free from contaminants or gases that could skew the results. This fresh air setting allows the meter to detect any subsequent changes in environmental conditions accurately.

When meters are started in confined spaces or near a fire, there are potential risks, including the inability to accurately assess the meter's functionality due to the presence of hazardous gases or smoke, which can lead to false readings. Similarly, starting a meter underwater would compromise the device's ability to function properly and could damage it, preventing any accurate data collection. Thus, initiating the meter in fresh air is vital for effective monitoring and operational safety.