Specifications:
The document outlines the specifications for Instromet wind sensors and switches. The devices are designed to be mounted as high and clear of obstructions like trees and buildings as possible. They can be mounted on a mast with a diameter of 25-50mm or using an Instromet mast kit. Various mounting options are available, including long, short, and tile/slate clamps.

Procedures:
The wind speed knob should be set to the desired switching speed. The controller activates when the wind exceeds this speed and the selected wind direction is active. The wind direction switch should be moved away from the LEDs to activate the desired direction.

Standards and Ratings:
The wind switches have a fail-safe contact system with normally open and closed contacts, rated at 5A 240V AC. The display dimensions are 195 x 160 x 115mm deep, with a lockable clear lid for wall mounting. The system is IP65 rated for protection against dust and water.

Timers and Delays:
The ON timer allows setting a delay in seconds before activation, with a maximum of 30 seconds. The OFF timer sets the minimum activation time in minutes, with a maximum of 30 minutes. A minimum time delay of approximately 30 seconds from activation to relay switching on, and up to 30 minutes for switching off, is included to prevent frequent switching.

Power Requirements:
The system requires a power supply of 240V AC or 12V DC.

Contact Information:
Instromet Weather Systems Ltd. is located at 10b, Lyngate Industrial Estate, North Walsham, Norfolk NR28 0AJ. They can be contacted via telephone at +44 (01692) 502800 or fax at +44 (01692) 502801. More information is available on their website www.instromet.co.uk or via email at [email protected].