A D C R I D G E

Analog barometer/altimeter

Baromètre/altimètre analogique

INTRODUCTION

Thanks for your purchase of the Brunton ADC Ridge altimeter – barometer. With this unit you can

measure the altitude of your position, height differences and with the barometer make a weather

forecast. This is helpful for outdoor activities like skiing, hiking, climbing etc. In order to utilize all

features, please read the following instructions:

· Avoid exposing your Brunton ADC Ridge to extreme conditions for long periods.

damaged by the atmospheric pressure.

PARTS DESCRIPTION

The parts of your Brunton ADC Ridge are

shown in the picture:

1. height scale

2. barometer scale

3. adjusting ring

4. pointer

5. zero line

FUNCTION DESCRIPTION

The observation of these variations allows you to measure site altitudes, height differences and

atmospheric pressure for weather accurate forecasting.

I. Altimeter

a) Absolute altitude measurement

· When starting your trip it is important to manually calibrate the beginning site altitude level.

Turn the adjusting ring until the pointer shows the exact altitude of your site. To find the

altitude, refer to maps, footpath signs, stations etc.

· Now the correct beginning site altitude is permanently indicated.

· Atmospheric pressure variations due to weather changes may affect the altitude reading

constantly. Please compare with known altitude readings occasionally and readjust while

This barometer measures the actual barometric value indicated at the zero line. The value for the

reduced atmospheric pressure at sea level is 29.92 inHg. Atmospheric pressure below this value is

referred to as low pressure, that above as high pressure.

b) Weather reference

3

4

1

2

5

ATMOSPHERIC PRESSURE WEATHER TRENDS

· falls slowly and continually

· is steadily low (below standard value)

indication for bad weather

· in summertime: changeable and cold

· in wintertime: thaw

· rapid and strong decrease · indication for storm

· very rapid decrease in summertime with

great heat

· indication for thunderstorm

c) Reduced atmospheric pressure at sea level

To get the most reliable weather forecast based on atmospheric pressure and weather trends at differ-

ent site altitudes, please refer to the reduced atmospheric pressure (standard value: 29.92 inHg). The

reduced atmospheric pressure at sea level based on your site can be determined as follows:

at sea level (normally available at local weather services, www, opticians, calibrated instruments

in public buildings, airports etc.). Turn the zero (0 feet) line of the adjusting ring to the current

atmospheric pressure at sea level. The pointer now indicates your site altitude.

TECHNICAL DATA

Units of measurement: feet (ft) / inHg

Measuring range: 0-18,000 ft / 18-31 inHg

Resolution: 50ft / .01 inHg

Accuracy: +/-100 ft / +/-.01 inHg

Operating temperature: -5°F - +140°F

Storage conditions: -20°F - +150°F; <90%RH

Phone : ___________________________ Email: __________________________________

Date Purchased: ____________________________________________________________

Would you like to receive a Brunton catalog? ( )Yes ( )No

Please let us know where you purchased your ADC Ridge?

Store Name: _______________________________________________________________

City: _______________________ State: _______________ Zip Code: _________________

( ) Online site ______________________ ( ) Catalog ______________________________

( ) Gift ( ) Brunton ( ) Other _________________________________________________

Do you own another Brunton product?

( ) Yes. Product: ____________________________ ( ) No

product, please return it to your retailer or send it to Brunton at the address below. Please contact us by

phone or email to receive an RA#. Please clean the product before shipping. Shipping cost to Brunton

is the purchaser’s responsibility. Brunton will pay return postage.

BRUNTON

Attn: Warranty Repair

2255 Brunton Court

Riverton, WY 82501

LIMITS OF LIABILITY

The Brunton Company assumes no responsibility for any inconvenience, loss, or injury, direct or con-

sequential damage arising from possession or use of the goods. This warranty gives you specific legal

la météo demeure la même

· monte subitement

· varie de façon permanente

indication pour une haute pression

intermédiaire

· diminue doucement et continuellement

· est basse sans interruption ( sous la

normale)

indication de mauvais temps

· en été: temps changeant et froid

· en hiver: dégel

· augmentation rapide et soudaine · indication d’une tempête

· augmentation très rapide en été

accompagnée de grandes chaleurs

· indication d’un orage

INTRODUCTION

périodes.

· Éviter les mauvais traitements ou les chocs importants.

· S.V.P., n’ouvrez pas le boîtier. Il contient des pièces de précision sensibles. Si vous avez des

problèmes, entrez en communication avec le détaillant.

· Nettoyez occasionnellement votre instrument Brunton ADC Ridge avec un linge doux.

· Lorsque vous ne l’utilisez pas, rangez-le dans un endroit sec.

· Votre instrument Brunton ADC Ridge peut tolérer des altitudes jusqu’à 49,000 pieds (15,000 mètres)

sans être endommagé par la pression atmosphérique.

DESCRIPTION DES PIÈCES

Les pièces du Brunton ADC Ridge sont