Product Overview

The document describes the Instromet Weather Systems Ltd Wind Speed Switch (PHM model), a device designed to monitor wind speed and activate alarm contacts based on preset thresholds. It includes a digital display showing wind speed in miles per hour (MPH).

Specifications

• Power Supply: 240V AC or 12V DC
• Contact Rating: 5A at 240V AC
• Alarm Contacts: Fail-safe with normally open (N/O), common (C), and normally closed (N/C) terminals
• Wind Speed Display: Digital MPH readout
• Models: Standard (STD) and Professional (PRO) versions with part numbers 353 0001 002 (STD), 353 0001 003 (PRO), 480 1000 029 (STD), and 480 1000 028 (PRO)

Functional Features

• Wind Speed Selection: User-selectable wind speed threshold to activate the switch
• Timers:
  • ON Timer: Delay before activation, adjustable up to 30 seconds
  • OFF Timer: Minimum activation time, adjustable up to 30 minutes
• Buttons: "SEL" and "RST" buttons are disabled for this application

Wiring and Connections

• Power connections labeled E (Earth), N (Neutral), and L (Live)
• Alarm contacts labeled N/O, C, and N/C for fail-safe operation
• Color-coded wiring: Red, Yellow, Black, Blue

Usage and Application

The Wind Speed Switch is intended for applications requiring automatic activation based on wind speed thresholds, such as alarms or control systems. The fail-safe contact design ensures reliable operation in case of contact failure.

Manufacturer Information

Instromet Weather Systems Ltd
10b, Lyngate Industrial Estate, North Walsham, Norfolk NR28 0AJ, UK
Tel: +44 (01692) 502800
Fax: +44 (01692) 502801
Email: [email protected]
Website: www.instromet.co.uk