Ambient Weather WS-M0921THB Podręcznik użytkownika - Strona 2

Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla Stacja pogodowa Ambient Weather WS-M0921THB. Ambient Weather WS-M0921THB 5 stron. Brushed aluminum contemporary weather station

Drukuj stronę

1. Introduction

Thank you for your purchase of the Ambient Weather WS-L0801TBH Brushed Aluminum

Contemporary Weather Station. 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. Remove this protective pad and circular instruction sheet. The barometer is ready

to use.

3. Care and Cleaning

Avoid use of harsh household cleaners and coarse paper towels, which can scratch the bezel or lens.

Fingerprints and dirt may be removed the lenses and bezels with a soft cloth lightly dampened with a

mixture of water and mild dishwashing liquid. Be sure to dry the lens and bezel with a soft cloth

after cleaning.

Do not install the weather station outside. The weather station is intended for indoor use only.

4. Hygrometer (Humidity Meter)

4.1 How the hygrometer works

The hygrometer measures the indoor relative humidity. The sensor measures the air moisture by a

sensitive mechanical coil spring that is bonded with a moisture absorbent material.

Hygrometers register the percentage of water vapor present in the air, compared to the maximum

amount that can be present at a given temperature.

The coils in hygrometers respond slowly and while humidity levels change abruptly, it can take an

hour or more for the meter to reach an accurate reading. Remember that the hygrometer is reading

indoor humidity, and is vastly different than outdoor humidity, as reported by the National Weather

Service.

It is not uncommon to have low humidity reading during cold weather when indoor air is heater. Air

conditioning also removes moisture from the air. The optimum levels are 45% to 50% during

heating and cooling seasons. Low humidity can cause health problems and can be hard on wood

furnishings. High humidity can cause mold or mildew to grow.

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.

Version 1.0

Page 2