Ambient Weather BA212 User manual

Version 1.2 ©Copyright 2014, Ambient LLC. All Rights Reserved. Page 1
Ambient Weather BA212 Wall Mounted Weather Station
with Thermometer, Hygrometer, and Barometer - Cherry
Finish User Manual
Table of Contents
1. Introduction.....................................................................................................................................2
2. Preparation......................................................................................................................................2
3. Care and Cleaning...........................................................................................................................2
4. Storm Glass Barometer...................................................................................................................2
4.1 How the storm glass works ....................................................................................................2
4.2 Filling the storm glass............................................................................................................3
4.3 Emptying the storm glass.......................................................................................................3
5. Comfortmeter..................................................................................................................................4
5.1 How the hygrometer works....................................................................................................4
5.2 HygrometerAccuracy.............................................................................................................4
5.3 Dial Thermometer ..................................................................................................................4
6. Warranty Information......................................................................................................................5
7. California Proposition 65…………………………………………………………………………5

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1. Introduction
Thank you for your purchase of the Ambient Weather BA212 Wall Mounted Weather Station with
Thermometer, Hygrometer, and Barometer - Cherry Finish. The following is a guide for preparation,
care and operation of your traditional weather station.
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
The solid wood case is finished with a clear, satin lacquer to protect and preserve the appearance.
Although occasional use of a good furniture polish is acceptable, we recommend periodic cleaning
with a very lightly water dampened soft cloth. Be sure to wipe the wood dry with a soft cloth before
cleaning.
Avoid use of harsh household cleaners and coarse paper towels, which can damage the lacquer
coating. Carefully remove the storm glass to clean.
Do not install the storm glass outside. The storm glass 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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Figure 1
4.2 Filling the storm glass
1. Fill the syringe (included in the package) the colored water (use food coloring).
2. Attach the syringe to the inlet of plastic tube (included in the package).
3. Turn the storm glass upside down. This is to ensure the liquid does not flow out.
4. Gently push the tube into the storm glass through the inlet of the spout until the end of the
tube has reached the bottom of the storm glasses bulb.
5. Slowly inject the liquid into the storm glass until half of the bulb is filled, as shown in Figure
1.
6. Turn the storm glass over to its proper position (do not remove the syringe).
7. Use more liquid to fill the glass tube until the colored liquid has reached half way up the
spout.
8. You may have to add or remove liquid after observing the storm glass for several days and
comparing to current and predicted weather conditions.
9. Note that evaporation is normal over time and the storm glass must be topped off
occasionally.
4.3 Emptying the storm glass
1. Attach the syringe to the long plastic tube.
2. Put the storm glass in an upright position.
3. Insert the tube into the storm glass until it reaches the bottom of the bulb.
4. Slowly pump the liquid out until all of the liquid is gone.

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5. Comfortmeter
Figure 2
The calibration and positioning of the hands are designed to indicate perfect comfort conditions in
room atmosphere: when both hands cross in a limited area of the dial, or the “COMFORT zone”.
5.1How 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.
5.2Hygrometer 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.
5.3Dial 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.By
bonding two different metals together, the coil bends, causing the needle to move. Bimetallic

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thermometers are not as accurate as bulb (mercury or red spirit) thermometers. The dial thermometer
should require no calibration.
6. 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.
Warranty service can only be performed by a Ambient, LLC. The original dated bill of sale must be
presented upon request as proof of purchase toAmbient, LLC.
Your Ambient, LLC warranty covers all defects in material and workmanship with the following
specified exceptions: (1) damage caused by accident, unreasonable use or neglect (lack of reasonable
and necessary maintenance); (2) damage resulting from failure to follow instructions contained in your
owner’s manual; (3) damage resulting from the performance of repairs or alterations by someone other
than an authorized Ambient, LLC authorized service center; (4) units used for other than home use (5)
applications and uses that this product was not intended, such as outdoor use.
This warranty covers only actual defects within the product itself, and does not cover the cost of
installation or removal from a fixed installation, normal set-up or adjustments, claims based on
misrepresentation by the seller or performance variations resulting from installation-related
circumstances.
7. California Proposition 65
WARNING: Use of theAmbient Weather Products can expose you to chemicals, including lead and
lead compounds, which are known to the State of California to cause cancer and bisphenolA (BPA),
and phthalates DINP and/or DEHP, which are known to the State of California to cause birth defects
or other reproductive harm.
Can I Trust that Ambient Weather Products are Safe Despite this Warning?
In 1986, California voters approved the Safe Drinking Water and Toxic EnforcementAct known as
Proposition 65 or Prop 65. The purpose of Proposition 65 is to ensure that people are informed about
exposure to chemicals known by the State of California to cause cancer, birth defects and/or other
reproductive harm. A company with ten or more employees that operates within the State of California
(or sells products in California) must comply with the requirements of Proposition 65. To comply,
businesses are: (1) prohibited from knowingly discharging listed chemicals into sources of drinking
water; and (2) required to provide a "clear and reasonable" warning before knowingly and
intentionally exposing anyone to a listed chemical. Proposition 65 mandates that the Governor of
California maintain and publish a list of chemicals that are known to cause cancer, birth defects and/or
other reproductive harm. The Prop 65 list, which must be updated annually, includes over 1,000
chemicals, including many that are commonly used in the electronics industry.
Although our manufacturing process is "lead-free" and RoHS compliant, it remains possible that trace
amounts of lead could be found in components or subassemblies of Ambient Weather Products.

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BisphenolA (BPSA) could conceivably be present in minute amounts in our plastic housings, lenses,
labels or adhesives, and DEHP & DINP (phthalates) could possibly be found in PVC wire coatings of
our cables, housings, and power cords. Unlike RoHS, Prop 65 does not establish a specific threshold
for reporting on the substances of concern and instead sets forth a much less definitive standard
requiring that the business demonstrate with certainty that there is "no significant risk" resulting from
exposure. With respect to carcinogens, the "no significant risk" level is defined as the level which is
calculated to result in not more than one excess case of cancer in 100,000 individuals exposed over a
70-year lifetime. In other words, if you are exposed to the chemical in question at this level every day
for 70 years, theoretically, it will increase your chances of getting cancer by no more than 1 case in
100,000 individuals so exposed. With respect to reproductive toxicants, the "no significant risk" level
is defined as the level of exposure which, even if multiplied by 1,000, will not produce birth defects or
other reproductive harm. In other words, the level of exposure is below the "no observable effect
level," divided by 1,000. (The "no observable effect level" is the highest dose level which has not been
associated with observable reproductive harm in humans or test animals.) Proposition 65 does not
clarify whether exposure is to be measured only in normal operation, or in the event of misuse such as
intentionally damaging, incinerating or consuming anAmbient Weather Product or component and
Ambient Weather has not attempted to evaluate the level of exposure.
A Proposition 65 warning means one of two things: (1) the business has evaluated the exposure and
has concluded that it exceeds the "no significant risk level"; or (2) the business has chosen to provide a
warning simply based on its knowledge about the presence of a listed chemical without attempting to
evaluate the exposure. The California government has itself clarified that "The fact that a product
bears a Proposition 65 warning does not mean by itself that the product is unsafe." The government
has also explained, "You could think of Proposition 65 more as a 'right to know' law than a pure
product safety law."
While usingAmbient Weather Products as intended, we believe any potential exposure would be
negligible or well within the "no significant risk" range. However, to ensure compliance with
California law and our customers' right to know, we have elected to place the Proposition 65
warning signs onAmbient Weather Products.
For further information about California's Proposition 65, please
visit https://oehha.ca.gov/prop65/background/p65plain.html