Ambient Weather WS-M201301THB User Manual
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Ambient Weather WS-M201301THB User Manual

Cherry finish gold dial open face with temperature and humidity
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Ambient Weather WS-M201301THB Cherry Finish Gold
Dial Open Face Barometer with Temperature and Humidity

Table of Contents

1.
Introduction ..................................................................................................................................... 2
2.
Preparation ...................................................................................................................................... 2
3.
Care and Cleaning ........................................................................................................................... 2
4.
Hygrometer (Humidity Meter) ........................................................................................................ 2
4.1
How the hygrometer works .................................................................................................... 2
4.2
Hygrometer Accuracy............................................................................................................. 3
4.3
Hygrometer Calibration .......................................................................................................... 3
5.
Aneroid Barometer .......................................................................................................................... 3
5.1
How the aneroid barometer works ......................................................................................... 3
5.2
Reading the barometer............................................................................................................ 3
5.3 Absolute vs. Relative Pressure ...................................................................................................... 4
5.4
Barometer Calibration ............................................................................................................ 4
6.
Dial Thermometer ........................................................................................................................... 5
7.
Installation ....................................................................................................................................... 5
8.
Measurement Specifications ........................................................................................................... 5
9.
Warranty Information ...................................................................................................................... 6
Version 1.0
User Manual
©Copyright 2015, Ambient LLC. All Rights Reserved.
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Summary of Contents for Ambient Weather WS-M201301THB

  • Page 1: Table Of Contents

    Ambient Weather WS-M201301THB Cherry Finish Gold Dial Open Face Barometer with Temperature and Humidity User Manual Table of Contents Introduction ............................. 2 Preparation ............................2 Care and Cleaning ........................... 2 Hygrometer (Humidity Meter) ......................2 How the hygrometer works ....................2 Hygrometer Accuracy......................

  • Page 2: Introduction

    1. Introduction Thank you for your purchase of the Ambient Weather WS-M201301THB Cherry Finish Gold Dial Open Face Barometer with Temperature and Humidity. The following is a guide for preparation, care and operation of your traditional weather station. 2. Preparation Your weather instrument includes a protective pad to prevent damage to the barometer glass case during shipment.

  • Page 3: Hygrometer Accuracy

    4.2 Hygrometer Accuracy Humidity measurement is among the more difficult problems in basic meteorology. Accuracy is difficult to achieve and are subject to drift, so need regular recalibration. A further difficulty is that most hygrometers sense relative humidity rather than the absolute amount of water present, but relative humidity is a function of both temperature and absolute moisture content, so small temperature variations within the air in a test chamber will translate into relative humidity variations.

  • Page 4: Absolute Vs. Relative Pressure

    The weather forecast is an estimation or generalization of weather changes in the next 24 to 48 hours, and varies from location to location. The tendency is simply a tool for projecting weather conditions and is never to be relied upon as an accurate method to predict the weather. The barometer includes a manually set needle, which is used to mark the current measurement so a change can be seen.

  • Page 5: Dial Thermometer

    Figure 1 6. Dial Thermometer The dial thermometer uses a bimetallic strip wrapped into a coil. One end of the coil is fixed to the housing of the device and the other drives an indicating needle. The principle behind a bimetallic strip thermometer relies on the fact that different metals expand at different rates as they warm up.

  • Page 6: Warranty Information

    9. Warranty Information Ambient, LLC provides a 1-year limited warranty on this product against manufacturing defects in materials and workmanship. This limited warranty begins on the original date of purchase, is valid only on products purchased and only to the original purchaser of this product. To receive warranty service, the purchaser must contact Ambient, LLC for problem determination and service procedures.

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