Oregon Scientific BA-116 Instruction Manual

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INTRODUCTION

- Thank you for your purchase of this Electronic
Barometer.

- Your Electronic Barometer is an example of superior
design and craftmanship.

- In order to optimize its function, be sure to read this
manual carefully and keep it for future reference.

FEATURES

- Electronic Barometer with barometric pressure and
trend.

- Weather forecast indication shows sunny, slightly
cloudy, cloudy and rainy.

- Displays indoor temperature and indoor relative
humidity at the same time.

- With comfort zone indication: shows ideal humidity
and temperature for personal comfort.

- User selectable °C or °F units of measure

- User selectable mb / hPa or inHg units of measure.

- Built-in low battery signal indication.

- Wall mounting and table standing features.

INSTRUCTION MANUAL

Model BA-116

Electronic Barometer

Thank you for purchasing the Oregon Scientific barometer.
This barometer has been designed specificially with
performance and ease of use in mind. As with all Oregon
Scientific products, this barometer is made to the highest
quality standards using precision electronic components and
should give you many years of trouble free use.
Please read the User’s Guide carefully before use to ensure
you get the best out of your new barometer.

Please note that the accuracy of the weather forecasting is
about 70 ~ 75 percent, when monitoring changes in
barometric pressure alone, therefore, we cannot be held
responsible for any trouble which may come up due to a
wrong forecasting with this unit.

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DESCRIPTION OF PARTS

BACK VIEW

ALT

DOWN

HISTORY

STAND

LCD DISPLAY

UP

FRONT VIEW

°C / °F SWITCH

RESET

STAND COMPARTMENT

HANGER HOLE

VENTILATION SLOT

BATTERY COVER

mb(hPa)/inHg SWITCH

INSTALLING AND REPLACING

BATTERIES

The unit uses four UM-4 ‘ AAA’ size batteries. If the
‘BATT‘ indicator appears, removes the exhausted batteries
and follow these steps to install or replace the batteries:

1. Lift and pull up the top center edge of the battery
compartment cover, then remove the cover.

2. Insert the batteries as indicated by the polarity symbols
( + and - ) marked inside the battery compartment.

3. Replace the battery compartment cover.

Note: After replacing the batteries, the whole display
will be turned on for about 3 seconds and then
show the following:

a, Indoor temperature shows the current reading.
b, Indoor relative humidity shows the current reading.
c, Weather forecast shows slightly cloudy ( a sun shows

with the cloud indicator )

d, Pressure trend shows steady.
e, Barometric pressure shows the current reading.

The unit takes about 24 hours to store the barometric pres­sure data. Until that time has elapsed, the pressure trend and
weather forecast symbols may not reflect actual weather
forecast for your area.

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DISPLAY AND FUNCTIONS

COMFORT INDICATOR

PAST PRESSURE
HISTORY IN ' HOUR '

PRESSURE READING

PRESSURE
TREND CHART

INDOOR
TEMPERATURE

WEATHER
FORECAST

RELATIVE HUMIDITY

HOW TO READ THE ILLUSTRATED

WEATHER FORECAST SYMBOLS

Your digital Barometer detects barometric pressure changes
and the LCD displays the illustrated weather symbols which
indicating the weather forecast for 12 to 24 hours ahead, for
an area with a radius of about 30-50 km.

Important:

1. The accuracy of weather forecasting when using
pressure trend alone is about 70 to 75 percent and,
therefore, we cannot be held responsible for any
inconveniences caused by an inaccurate weather
forecast.

2. The weather forecast symbols may not reflect the
current weather condition. The symbols are

forecasting the future.

3. A ‘ Sunny ‘ forecast covering the night-time reflects
fine clear weather.

HOW TO READ THE BAR GRAPH

PRESSURE TREND

Stored memory of the barometric pressure changes are
displayed on the chart, in 5 steps indicating the pressure
1,3,6,12 and 24 hours ago. This chart is plotted by comparing
the past barometric pressure to the present pressure. The
scale on the right shows the comparison result. The ‘ 0 ‘ in the
middle of the scale means equal to present pressure, ‘ +2 ‘

Indicator

displays on

the unit

Forecast

Sunny

Slightly Cloudy

Cloudy

Rainy

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means the past pressure was higher than the present pressure
by 2 mb.

This gives you the pressure trend over the last 24 hours. The
weather will be getting better ( worse ) if this chart shows the
bar marks moving up ( down ) towards the present time
‘ 0H ‘.

BAR GRAPH PRESSURE TREND

Important:

It is only possible to measure the barometric pressure trend
properly if your barometer remains at the same altitude.

When moving around at different altitudes within a short
time period, the air pressure changes, the barometric pressure
change is not correct, until the barometer has remained at a
constant altitude for 24 hours.
However, please note again the accuracy of a weather forecast
based on the barometric pressure reading. It is considered to
be about 70-75%.

ABOUT THE ALTITUDE SETTING

1. For monitoring the local barometric pressure reading,
the user needs to select the 0 meter (preset value) for
the altitude setting.

2. For monitoring the Sea Level barometric pressure reading
at certain altitude, the user needs to select the local
altitude (-100 to 2500 meter) for the altitude setting.

HOW TO SET THE ALTITUDE

1. Press and hold the [ ALT ] button for 2 seconds to set
the altitude. The 'ALT ' indicator will turn on with the
altitude setting flashing (display in meter). Increase/
decrease the altitude in steps of 10 meter by pressing
[ ] or [ ] button. Press and hold [ ] or [ ] for
faster setting.

2. Press the [ ALT ] button again to set the altitude. At this
time the previous pressure display will reappear. If the
altitude has been changed, the ' ALT ' indicator flashing
(about 15 minutes) until a new sampling takes place and
the pressure reading is then compensated with the new
altitude.

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HOW TO SELECT THE BAR OR LINE

CHART FOR THE PRESSURE TREND

In bar chart display, press and hold the [ ALT ] button and
then reset the unit by pressing the [ RESET ] button on the
back of the unit simultaneous, to get the line chart display.

LINE CHART

BAR CHART

In line chart display, reset the unit by pressing the
[ RESET ] button once on the back of the unit to get
the bar chart display.

Note: Either action will reset the unit and the previous

readings / settings will be lost.

HOW TO RECALL THE STORED

PRESSURE HISTORY READING

The barometric pressure reading is being stored constantly
during the past 24 hours. It can be recalled and displayed for
each hour.

1. By pressing the [ HISTORY ] button repeatedly, the
barometric pressure readings which have been stored
over the past 24 hours, will appear on the display in
mb/hPa or inHg with the recording time up to ‘ -24 ‘
hour and back to ‘ 0 ‘ hour. ( ' 0 ' hour means present
time ).

2. Press and hold the [ HISTORY ] button , for faster
advancing.

3. If the pressure in one particular history hour has not yet
been recorded, it will show ‘ - - - - ‘ for that hour on the
past history review display.

UNITS OF
MEASURE

PRESSURE READING

PAST PRESSURE

HISTORY

IN ' HOUR '

HOW TO READ THE RELATIVE

HUMIDITY AND THE COMFORT

INDICATORS

The unit shows the indoor relative humidity automatically
and such reading is temperature compensated. At the same
time, the comfort indicators - COMFORT, WET or DRY will
tell you if the current environment is comfortable, too wet or
too dry.

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Full Range

The comfort indicators will appear on the display when the
following conditions are satisfied:

Indicator Temperature Humidity Shows that the
displays Range Range Current
on the unit Environment
COMFORT 20°C to 25°C 40% RH to Ideal range for
(68°F to 77°F) 70% RH both relative
humidity and
temperature

WET Over Contain excess

70%RH moisture.

DRY Below Contain

40%RH inadequate

moisture

No Less than 40%RH No comment
Indicator 20°C(68°F) or to

More than 70%RH
25°C(77°F)

HOW TO SELECT THE

TEMPERATURE THE UNITS OF

MEASURE

The switch on the back of the Barometer selects between
degrees Celsius and Fahrenheit. To select Celsius units, set
the switch to °C. To select Fahrenheit units, set the switch to
°F.

HOW TO SELECT THE PRESSURE

UNITS OF MEASURE

The switch on the back of the Barometer selects between mb
/ hPa and inHg. To select mb / hPa , set the switch to mb / hPa.
To select inHg, set the switch to inHg.

THE RESET BUTTON

If the unit does not operate properly, use a pointed object to
push the [ RESET ] button once, which is located on the back
of the unit.

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LOW BATTERY SIGNAL INDICATION

If the voltage of the Batteries becomes low, the ‘ BATT ‘
indicator will be displayed. Please replace the batteries when
the ‘ BATT ‘ indicator is displayed.

FREE STANDING OR WALL

MOUNTING

Stand:

Your Barometer comes with a built-in stand for tabletop use.
On the back of the unit, ease the plastic stand from its slot and
place the stand in the recess holes on located on the bottom
of the case.

2. PULL AWAY FROM UNIT.1. PUSH DOWN GENTLY.

Wall Mount:

On the back of the Barometer you'll find a recess holes for
wall handing. Place a screw (or whatever device you choose)
into the wall until the head extends a little more than 4 mm
from the wall. Place your barometer over the screw in the
hanger slot, until it locks into place.

MAINTENANCE

The following suggestions will help you care for the
Barometer so you can enjoy it for years.

1. Keep the Barometer dry. If it gets wet, wipe it dry
immediately. Liquids might contain minerals that can
corrode the electronic circuits.

2. Use and store the Barometer only in norma temperature
environments. Temperature extremes can shorten

3. PLACE THE STAND.

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the life of electronic devices, damage batteries, and

distort or melt plastic parts.

3. Handle the Barometer gently and carefully. Dropping
it can damage circuit boards and cause the Barometer
to work improperly.

4. Keep the Barometer away from dust and dirt, which
can cause premature wear of parts.

5. Wipe the Barometer with a damp cloth occasionally to
keep it looking new. Do not use harsh chemicals,
cleaning solvents, or strong detergents to clean the
Barometer.

6. Use only fresh batteries of the required size and type.
Always remove old or weak batteries. They can leak
chemicals that can destroy electronic circuits.

7. Modifying or tampering with the Barometer's internal
components can cause a malfunction and might
invalidate its warranty.

SPECIFICATION

Operating temperature : 0°C to +55°C

( +32°F to + 131°F)

Temperature measuring range : 0°C to +55°C

( +32°F to + 131°F )
Temperature display resolution : 1°C ( 2°F )
Temperature sampling cycle : 9 seconds

Humidity measuring range : 25% to 95% RH

(at 25°C/77°F)
Humidity display resolution : 1% RH
Humidity sampling cycle : 9 seconds
Pressure measuring range : 795 to 1050 mb / hPa

( 23.48 to 31.01 inHg )
Altitude compensation

for barometric pressure reading: -100 to 2500 meter
Pressure display resolution : 1 mb / hPa (0.03 inHg )
Pressure sampling cycle : 15 minutes
Power source : Four pcs. UM-4 or

‘AAA‘ size batteries
Battery life : Approx. 1 Year
Dimension : 136 x 108 x 26.5mm

(H x W x D)
Weight : 200gms

(without battery)

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- The content of this manual is subjected to change
without further notice.

- Due to printing limination, the displays shown in this
manual may differ from the actual displays.

- The manufacturer and its supplies held no respond to
you or any other person for any damages, expenses,
lost profits, or any other damages arise by using this
Barometer.

- The contents of this manual may not be reproduced
without the permit of the manufacturer.