Setting a barometer, or calibrating it, involves adjusting it to reflect the current, local air pressure so it can accurately forecast changes in weather. Based on the provided reference, here's how to do it:
- Find the current local air pressure. You can typically obtain this information from local weather reports, weather websites, or apps.
- Move the marker needle on the front of the barometer until it matches the local air pressure.
Once the marker needle matches the current local air pressure, your barometer is calibrated and ready for use. It's important to recalibrate your barometer periodically to ensure accurate readings.
