The Vaisala WINDCAP Ultrasonic Wind Sensor Series sensor delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions:
| WARNING Lightning protection is required to prevent injury and damage to equipment due to direct lightning strikes and lightning-induced current surges. |
| WARNING If ice or snow accumulates on the mast, guy wires, or sensors, the ice or snow can fall and cause injury to persons below. |
| WARNING Make sure that you prepare or connect only de-energized wires. |
| 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 Improper modification can damage the product or lead to malfunction. Any modification voids your warranty. |
| CAUTION Handle with care. Any impact on the instrument or sensor array may cause damage and lead to incorrect measurements. |
| CAUTION The heating power supply wires are internally connected to each other. If the connection cable has two positive heating supply wires, both must be connected to each other. Leaving one terminal unconnected or connecting it to the ground may cause a malfunction or a short-circuit in the power supply. |
| CAUTION Do not modify the unit or use it in ways not described in the documentation. Improper modification may lead to safety hazards, equipment damage, failure to perform according to specification, or decreased equipment lifetime. |
| WARNING Heated WMT700 sensors have the following symbol. The sensor can be hot during normal operation. Avoid touching the sensor in operation. The sensor may detect touching as an ice blockage and start the high power melting mode. |
| Do
not touch hot surfaces. Wear protective gloves when working with WMT700. Let WMT700 cool down for 20 minutes after disconnecting the heating power supply. |