| WARNING Consult local electricity professionals for the local and state legislation and regulations about grounding. |
| WARNING Ground the product and verify outdoor installation grounding periodically. Failure to provide proper grounding can result in injury or death from electrical shock and can severely damage the equipment. |
| WARNING Lightning protection is required to prevent injury and damage to equipment due to direct lightning strikes and lightning-induced current surges. |
| WARNING Ground remote units properly. A lightning strike through a communication wire can cause a lethal current surge. |
| WARNING A long cable between units (sensors, transmitters, power supplies, and displays) can cause a lethal lightning-induced current surge. Always ground the enclosure to a suitable grounded location with a short, low-resistance cable. |
| WARNING Do not perform installation or maintenance procedures when there is a risk of thunderstorm or lightning activity in the area. |
| CAUTION To prevent equipment damage, install an air terminal so that the tip is as high above the instruments and sensors as possible. |
| CAUTION Vaisala recommends an air terminal for all mast structures that reach 10 meters (33 feet). For mast structures that reach 6 meters (20 feet) or lower, an air terminal is recommended in regions with high lightning density. Especially in tropical or sub-tropical regions, a lightning protection system is a necessity. |
| The customer is responsible for supplying the accessories, such as grounding cables, power cables, and conduits for cables. |
For instructions and guidance on how to set up grounding and lightning protection for the weather station, see: