Ambient Weather WS-YG901 Manuale - Pagina 2

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1. Introduction

Thank you for your purchase of the Ambient Weather WS-YG901 Galileo Thermometer and Glass

Fluid Barometer. The following is a guide for preparation, care and operation of your traditional

barometer and thermometer.

2. Preparation

You will need food coloring to color the water in the storm glass. Any color is fine, based on personal

taste.

3. Care and Cleaning

Avoid use of harsh household cleaners and coarse paper towels, which can damage the lacquer or

glass.

Do not install the barometer and thermometer outside. It is intended for indoor use only.

4. Storm Glass Barometer

4.1 How the storm glass works

The concept that 'decreasing atmospheric pressure predicts stormy weather' was postulated by Lucien

Vidie - and it's the basis for a weather prediction device called a storm glass or liquid barometer. It

consists of a glass container with a sealed body, half filled with water.

A narrow spout connects to the body below the water level and rises above the water level, where it is

open to the atmosphere. When the air pressure is lower than it was at the time the body was sealed, the

water level in the spout will rise above the water level in the body and when the air pressure is higher,

the water level in the spout will drop below the water level in the body.

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