Oregon Scientific EB833 User manual

TABLE OF CONTENTS

Introduction ............................................................. 2

Description Of Parts ............................................... 2

Installing And Replacing Batteries ........................ 3

General Operation Of The Altimeter ...................... 4

•Altitude Calibration ................................................. 6

•Units Of Measurement For Altitude ........................ 6

•About The Altitude Change Graph ......................... 6

•Altitude History Display .......................................... 7

•About Altitude Change Memory ............................. 7

•Clearing Altitude Memory, Max / Min Altitude

Memory, And Vertical Ascent / Decent Memory .... 7

•The Altitude Alarm ................................................. 8

•Altitude Sampling Rate .......................................... 8

•Notes On Altimeter Functions ................................ 9

General Operation Of Barometer And Weather

Forecast Functions ................................................. 9

•Barometric Pressure Calibration .......................... 10

•Units Of Measurement For Barometric Pressure . 10

Altimeter / Barometer

with

Weather Forecasts and Clock /

Calendar

Model: EB833

User’s Manual

•About The Pressure Change Graph .................... 11

•Pressure History Display ...................................... 11

•Notes On Barometer Functions ........................... 11

General Operation Of Time And Date Functions 12

•Time And Date ..................................................... 13

•Daily Alarm ........................................................... 13

•Deactivating The Alarm ........................................ 14

•Count-Up Timer ................................................... 14

•Temperature Display ............................................ 14

Resetting The Unit ................................................ 14

Maintenance .......................................................... 15

Specifications ........................................................ 15

About Oregon Scientific ....................................... 17

EB833(EN3) 8/31/04, 3:40 PM1

A weather forecast device, the EB833 uses barometric

information to make forecasts as sunny, slightly cloudy,

cloudy, and rainy. It also has a built-in thermometer.

As a timepiece, this unit functions as a clock / calendar,

daily alarm, and count-up timer.

To optimize the usefulness of this device, be sure to read

this instruction manual carefully before use, and keep it

handy for future reference.

DESCRIPTION OF PARTS

Liquid Crystal Display (LCD)

-Large easy-to-read 3-line LCD

[ALT] Altimeter Button

-Alternates between Altimeter displays

INTRODUCTION

Thank you for your purchase of the Altimeter / Barometer

(EB833). Designed to be durable, this unit is constructed

for rugged outdoor use.

The EB833 has three primary functions.

1. Altimeter

-Functions related to altitude measurement.

2. Barometer and Weather Forecast Device

-Functions related to weather forecasts and

atmospheric pressure.

3. Clock, Calendar, and Count-Up Timer

-Functions related to time, date, and count-up timer.

An altimeter, the EB833 will measure and display current

altitude readings, changes between two elevations, and

maximum and minimum altitudes. The unit stores altitude

data and can indicate changes in altitude for a 12-hour

period or calculates the total accumulation of elevation

ascents over a given period of time. In addition, the user

can set an altitude alarm that will activate when specified

elevations are reached.

The EB833 is also a barometer. It measures and displays

current pressure readings, and provides a barometric

history and a bar graph showing barometric changes

over a 12-hour period.

EB833(EN3) 8/31/04, 3:40 PM2

[BARO] Barometer Button

- Alternates between Barometric displays

√TIME Button

-Alternates between Time displays

[+ -] Button

-Changes the value of a setting

-Clears memories

-Activates / deactivates alarm

-Selects units of measure

-Switches from fast to slow sampling rate

≈Battery Compartment

-Houses 2 (two) CR-2032 batteries

-RESET Button

∆Sensor Vents

-Openings for atmospheric sensitive sensors

≥Neck Cord

-Facilitates carrying around the neck or attached to

a rucksack or belt

FULL SEGMENT DISPLAY

Hand Grips

-Rubberized grips that prevent the unit from being

accidentally dropped

Wall-Mount Bracket

-to mount unit to wall or vertical surfice

INSTALLING AND REPLACING OF

BATTERY

The EB833 operates with 2 (two) CR-2032 Lithium

batteries that are included with all new units. During

initial packaging, the batteries were insulated with a red

tape so as to maximize the shelf life of the product.

Before use, remove the insulation tape by gently pulling.

Upon removal, the display will show a full-segment

display for 3 seconds; it will then enter the Normal

Altitude Display.

EB833(EN3) 8/31/04, 3:40 PM3

GENERAL OPERATION OF THE ALTIMETER

In Altimeter Mode, by detecting changes in air pressure,

the EB833 determines a given altitude level.

Subsequently, the unit can be set to show changes in

altitude and maximum / minimum elevations. It can store

altitude-related data and display elevation trends over a

12-hour period of time. The unit can also display the net

total of accumulative ascents.

A small icon indicates that the unit is in Altimeter

Mode and that the displays are altitude related.

To view display sequences in Altimeter Mode:

1. Press [ALT] to move between various Altimeter

Mode displays.

Normal Altitude Display

The first display in Altimeter Mode.

NOTE If the unit is being used for the first time, it will

automatically enter the Normal Altimeter Display.

Display shows:

Follow these steps to install or replace batteries:

1. Open battery cover located at the back of the unit by

removing screws.

2. Insert 2 (two) new CR-2032 Lithium batteries.

3. Replace the battery cover.

A battery-low indicator [ BATT ] will show on the display

when the batteries require changing.

It is recommended that when the user is stationary at one

elevation, that the unit is placed in Barometer Mode. The

Altimeter Mode may shorten battery life. Stored altitude

related data is not affected by having the unit in Barometer

Mode for extended periods of time.

NOTE Disposed of improperly, batteries can be

harmful. Protect the environment by taking

exhausted batteries to authorized disposal

stations.

CURRENT

ALTITUDE

CURRENT

TIME

NORMAL ALTITUDE DISPLAY

ALTITUDE

ICON

ALTITUDE

TREND

GRAPH

CURRENT

TEMPERATURE

EB833(EN3) 8/31/04, 3:40 PM4

2. Press [ALT] to view the Altitude Max Memory

Display.

Display shows:

3. Press [ALT] again, to view the Altitude Min Memory

Display.

Display shows:

4. Press [ALT] again, Altitude History Display.

Display show:

*Previous altitude levels can be displayed for up to

12-hours. Press [+] or [-] to display previous altitude

levels at one-hour intervals for the past 12-hours.

5. Press [ALT] again to view the Altitude Alarm Display.

Display shows:

6. Press [ALT] again, the unit will return to the Normal

Altitude display.

CHANGE IN

ALTITUDE

ALTITUDE MIN MEMORY

DISPLAY

MINIMUM

ALTITUDE

REACHED ACCUMULATIVE

VERTICAL

DECENT

MEMORY

ACCUMULATIVE

VERTICAL

DECENT ICON

CHANGE IN

ALTITUDE

ALTITUDE CHANGE

INDICATOR

THE

ACCUMULATIVE

VERTICAL

ASCENT MEMORY

ALTITUDE MAX MEMORY

DISPLAY

ACCUMULATIVE

VERTICAL

ASCENT ICON

MAXIMUM

ALTITUDE

REACHED

ONE HOUR

PREVIOUS*

CURRENT ALTITUDE

ALTITUDE HISTORY DISPLAY

CORRESPONDING

ALTITUDE LEVEL AT

THE INDICATED

TIME

ALARM ON/OFF

INDICATOR

ALARM DISPLAY

INDICATOR

ALTITUDE LEVEL

WHERE THE ALARM

WILL ACTIVATE

CURRENT

TEMPERATURE

CURRENT

TIME

ALTITUDE ALARM DISPLAY

EB833(EN3) 8/31/04, 3:40 PM5

ALTITUDE CALIBRATION

If the altitude on the display is different from the actual

current altitude, the unit can be manually calibrated to

reflect the true altitude level.

To calibrate the altitude:

1. In Normal Altitude Display.

2. Press and hold [ALT] and [TIME] simultaneously for

about 2 seconds. The CAL Hx indicator shows on the

display and the current altitude digits start flashing.

3. Press [+] or [-] to adjust the altitude reading by 1

meter. For rapid acceleration of measurement

adjustments, press and hold.

4. Press [ALT] to confirm and return to the Altitude

Display.

Example:

Point C: A point where the altitude, as indicated by a

marking stone or post, is 1500m. At this point

set the current altitude to 1500m.

NOTE The unit will return to Normal Altimeter Display if

no buttons are pressed for one-minute during the

calibration sequence.

UNITS OF MEASUREMENT FOR ALTITUDE

Altitude measurements can be displayed in feet (ft) or

meters (m).

To change the altitude units of measure:

1. In Normal Altitude Display.

2. Simultaneously, press and hold the [+] and [-] to

select between meters or feet.

ABOUT THE ALTITUDE CHANGE GRAPH

In Normal Altitude Display, the EB833 graphically display

altitude levels at 2-hour time intervals for the past 12

hours. Each vertical bar on the altitude graph represents

a 2-hour time period. Each horizontal line represents

pressure changes equal to + /- 200m.

The Altitude Change Graph is viewed in all the Altimeter

Mode displays.

( 2 HOURS PER COLUMN )

EB833(EN3) 8/31/04, 3:40 PM6

Point B: At this point, check the Altitude Change Memory.

The unit will display the net vertical difference

between point A and point B.

CLEARING ALTITUDE MEMORY, MAX / MIN

ALTITUDE MEMORY, AND VERTICAL

ASCENT / DECENT MEMORY

Altitude related memories are cleared sequentially. During

the sequence, correct information can be bypassed by

pressing [ALT].

NOTE To clear the maximum altitude reached memory,

first enter MAX Altitude Display. Alternately, enter MIN

Altitude Display to clear the minimum altitude reached

memory.

To clear Altitude Mode Memories:

1. Enter Altitude Max (or Altitude Min) Display.

2. Press and hold [ALT] for about 2 seconds, the

change-in-altitude digits flash.

NOTE To bypass any section without making changes

to the memory, press [ALT].

3. Press [+] or [-], the change-in-altitude digits will reset

to 0 m./ft.

4. Press [ALT], and proceed to the maximum (or

minimum) height reached memory. The subsequent

maximum (or minimum) altitude digits flash.

ALTITUDE HISTORY DISPLAY

In addition to having altitude information displayed as a

graph, altitude history can also be displayed numerically.

To numerically display previous altitude levels:

1. Enter the Altitude History Display

2. Press [+] or [-] to display the corresponding altitude

history for a specified time period up to –12 hours.

ABOUT ALTITUDE CHANGE MEMORY

The EB833 can monitors the change in altitude between

two points. The unit displays the net vertical difference

between points of a descent / ascent. Upon clearing the

altitude memory, the current altitude reading is used as

a base from which the unit starts recording changes.

Point A: At this point, reset the Altitude Change Memory

to 0 m./ ft. The EB833 will immediately start

recording new changes in altitude.

EB833(EN3) 8/31/04, 3:40 PM7

activate at the specified elevation.

7. Press [ALT] again and the Altimeter exits the setting

sequence. If the alarm is set to activate at a specified

altitude, the will be displayed.

NOTE The unit will return to the Altimeter Display if no

buttons are pressed for 2 minutes.

The altitude alarm setting ranges is between –500m and

7000m.

ALTITUDE SAMPLING RATE

The EB833 automatically samples altitude level at a rate

of 2 seconds or 15 minutes.

When detecting a significant change in altitude, the unit

will automatically increase the Altitude Sampling Rate to

2-second intervals.

When maintained at the same elevation for 10 minutes

or longer, the device will automatically decrease the rate

at which altitude samples are taken.

To manually force a change in the frequency at

which altitude samples are taken:

1. In Normal Altimeter Display.

2. Press and hold (+) for about 2 seconds. The Altitude

Sampling Rate will increase to 2-second intervals.

3. Press and hold (-) for about 2 seconds. The Altitude

Sampling Rate will decrease to 15-minute intervals.

5. Press [+] or [-], the memory resets to the current

actual altitude.

6. Press [ALT], and proceed to the accumulative vertical

ascent / decent memory. The subsequent

accumulative vertical ascent / decent digits flash.

7. Press [+] or [-], the vertical ascent / decent memory

resets to 0 m. / ft.

8. Press [ALT] a last time and the unit returns to the

Altitude Max (or Min) Memory Display.

NOTE The EB833 will return to Altitude Max/Min Memory

Display if no buttons are pressed for 1 minute.

THE ALTITUDE ALARM

The Altitude Alarm can be set to activate when a specific

altitude is reached.

To set the altitude alarm:

1Enter Altitude Alarm Display.

2. Press and hold [ALT] for above 2 seconds. The

indicator will display.

3. Press the [+] and [-] to increase / decrease the

altitude reading. Press and hold for 100-meter

acceleration increments.

4. Press [ALT]

5. Press [+] or [-] to deactivate the alarm (the

indicator disappears) or [+] or [-] to activate the alarm

(indicator appears).

6. Press [ALT], the ALTALARM indicator stops flashing.

The indicator will appear and the alarm will

EB833(EN3) 8/31/04, 3:40 PM8

NOTES ON THE ALTIMETER FUNCTIONS

Altitude readings may be affected by air pressure change.

Sudden changes in pressure, temperature and weather

may cause an inaccurate altitude reading.

The unit cannot distinguish between change of air

pressure caused by a weather change or by an altitude

change. However, accurate functioning of the unit can

be maintained by following a few simple steps.

To ensure that accurate altitude readings are

maintained:

- At the start of a journey, switch the unit to the

Altimeter Display Mode. The last barometric pressure

will remain stored until the unit is switched back to the

Barometer Display Mode.

-When a journey is completed, or if the unit is

maintained at the same altitude for extended periods,

it is recommended to switch to the Barometer Display

Mode.

- If a journey is particularly long or extended over a

long distance of varying altitudes, occasionally

compare the unit’s displayed altitude against known

actual altitudes. If necessary, manually calibrate the

altitude to maintain correct altitude readings.

GENERAL OPERATION OF THE

BAROMETER AND WEATHER FORECAST

FUNCTIONS

In Barometric Mode, by detecting changes in air pressure,

this unit makes weather predictions. Illustrated weather

forecasts symbols indicate forecasts as sunny, slightly

cloudy, cloudy, and rainy.

Displayed forecast symbols are intended indicate weather

forecasts for the coming 12 to 24 hours. The radius of the

forecast is approximately 30 to 50 km.

A small icon indicates that the unit is in Barometric

Mode and that the displays are barometer related.

NOTE

1. The accuracy of weather forecasts, when only using

atmospheric pressure trends, are approximately 70

to 75 percent.

2. The weather forecasts from this unit are predictions

that cover the next 12 to 24 hours. It may not

necessarily reflect the current situation.

3. The "Sunny" icon, as applies to nighttime, implies

clear weather.

LCD

DISPLAYS

ON THE

UNIT

FORECAST SLIGHTLY CLOUDY CLOUDY RAINY

SUNNY

EB833(EN3) 8/31/04, 3:40 PM9

To View Different Displays in Barometric Mode:

1. Press [BARO] to move between barometric functions.

Normal Barometric Display

The first display in Barometric Display Mode.

NOTE The unit will automatically enter Normal Barometric

Display when first entering the Barometric Mode.

Display shows:

2. Press [BARO] again to view the Barometric

Pressure History Display

Display shows:

* Previous barometric levels can be displayed for up

to 12 hours. Press [+} or [-] to display previous

barometric levels at one hour intervals for the past

12 hours.

3. Press [BARO] again, to return to the Normal

Barometer Display.

BAROMETRIC CALIBRATIONS

At sea level or near a reliable source like a weather

station, the barometer can be calibrated.

To calibrate the barometric function:

1. Enter Normal Barometric Display.

2. Simultaneously press and hold [BARO] and [TIME]

for about 2 seconds. The “CAL Po” will be displayed

and the current barometric digits will flash.

3. Press [+] or [-] to adjust barometric readings.

4. Press [BARO] to return to the Barometric Display

Mode.

UNITS OF MEASURE FOR BAROMETRIC

PRESSURE

Barometric units of measurement can be displayed as

mb, hpa, and inHg.

To change the units of measurement:

1. Enter the Normal Barometric Display.

WEATHER

FORECAST

INDICATORS

CURRENT

TEMPERATURE

CURRENT

TIME

CURRENT

PRESSURE

CHANGE

TREND

GRAPH

NORMAL BAROMETRIC DISPLAY

ONE HOUR

PREVIOUS*

BAROMETRIC HISTORY DISPLAY

CORRESPONDING

BAROMETRIC

PRESSURE

LEVEL AT THE

INDICATED TIME

BARO ICON

EB833(EN3) 8/31/04, 3:40 PM10

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