Brunton Nomad 2004 Manuale utente

Printed in U.S.A.

form 12-NOMAD rev. 0136

(307) 856-6559

www.brunton.com

[email protected]

Owner’s Purchase Record

Model ______________________________________________________

Date of Purchase _____________________________________________

NNOOMMAADDTTMM

Electronic

Compass

Operator’s

Manual

1 – NOMAD Orientation ............................................ Page(s): 1

1.1 Battery Insertion

1.2 ON/OFF Button

1.3 Round Bubble Level

1.4 ADVANCE Button

1.5 ENTER Button

1.6 Mode Selection

1.7 Description of Display

2 – Compass Mode ................................................................... 3

2.1 Compass Settings

3 – Forward Bearing Mode ....................................................... 6

3.1 Store Forward Bearing

3.2 Clear Forward Bearing

4 – Reverse Bearing Mode ....................................................... 7

4.1 Store Reverse Bearing

4.2 Clear Reverse Bearing

5 – Icon Warnings ..................................................................... 8

5.1 Low Battery Icon

5.2 Disturbance Icon

6 – Specifications ...................................................................... 8

7 – Warranty & Service .............................................................. 9

Congratulations!

You have purchased a high quality Brunton electronic compass. Even though the

Brunton NOMADTM is made rugged and durable to withstand the rigors associated with

outdoor use, care must be taken to assure long life of your instrument. Avoid impacts,

dropping, extreme temperatures and store the NOMAD out of the elements.

Orientation provides a short description of important NOMAD parts and display. A

detailed description of its operation is provided throughout the manual.

The buttons perform multiple tasks either by pressing or by holding. When instructed

to “press” a button, press the button for less than 1 second. When instructed to “hold”

a button, press and hold for at least 2 seconds unless instructed otherwise.

1.1 Battery Insertion

1. Remove battery cover by turning the battery cover counter clockwise.

2. Place one CR2032, 3 Volt Lithium battery in the NOMAD

(Fig. 1).

3. Replace battery cover. NOMAD will begin a reset sequence,

then power on automatically.

IMPORTANT! The NOMAD should be calibrated each time the battery is replaced. If

installing the battery for the first time continue reading, and calibrate the compass when

you reach section 2.1-1 Calibration Setting.

1.2 ON/OFF Button (Fig. 2)

The ON/OFF button turns both NOMAD and backlight

power on and off.

1. Hold ON/OFF button for at least 3 seconds to power

NOMAD on. With NOMAD power on, hold ON/OFF

to power NOMAD off.

2. With NOMAD power on, press ON/OFF to turn back

light on for 30 seconds. Backlight will automatically

power off after 30 seconds of the last button press.

To power backlight off before 30 seconds has

elapsed, press ON/OFF.

1 -- NOMAD Orientation

NOMAD Orientation

ON/OFF

ADV

ENT

Level

Figure 1

Figure 2

1.3 Round Bubble Level (Fig. 2)

Important! When using the electronic compass, center the bubble in the round level.

This allows for highest possible compass accuracy.

1.4 ADVANCE (ADV) Button (Fig. 2)

The advance button is used to advance through the 3 modes, or scroll through values

and settings.

1.5 ENTER (ENT) Button (Fig. 2)

The ENT button is used to access settings, or enter bearings and values.

1.6 Mode Selection (Fig. 3)

All settings and operations are accessed in three modes -- Compass, Forward Bearing

and Reverse Bearing Modes. Advance

through the modes by pressing the ADV

button repeatedly. Notice the different

icons displayed in each mode, shown in

figure 3.

1.7 Description of Display (Fig. 4)

1.7-1 Compass Mode Icon

Compass Mode icon indicates the NOMADTM is in Compass Mode.

1.7-2 Forward & Reverse Bearing Mode Icon

This icon has two functions. When in Forward Bearing Mode the icon remains on.

When in Reverse Bearing Mode the icon flashes.

1.7-3 Bearing

The compass bearing ranges from

0 to 359º (degrees) and indicates the direction

the NOMAD is facing. Compass bearing is

displayed in all three modes.

1.7-4 Magnetic Declination Icon

The Magnetic Declination icon is displayed

only after a magnetic declination angle is

entered and used in the bearing calculation.

NOMAD Orientation

Figure 4

1.7-1

1.7-2 1.7-3

1.7-4

1.7-5

1.7-6

ADV ADV

Compass Forward

Bearing

Reverse

Bearing

Flashing

Back to Compass Mode

Figure 3

1.7-5 Heading

This displays the direction the NOMADTM is facing, or a stored heading.

In Compass Mode, cardinal headings are displayed. There are 16 different cardinal

headings. “N” indicates 0º, “E” - 90º, “S” -180º and “W” - 270º, with an addition-

al 12 cardinal headings in-between. In Forward and Reverse Bearing Modes, a

stored heading is displayed, in degrees.

1.7-6 Compass Rose

The arrow on the compass rose is used as a direction pointer. In Compass Mode, it

points at north. In Forward and Reverse Bearing Modes, the arrow will point in the

direction of a stored heading.

The Compass Mode provides basic directional information. Notice the Compass Mode

icon is displayed.

2.1 Compass Settings

In the Compass Mode there are two settings, the Calibration setting and Magnetic

Declination setting.

2.1-1 Calibration Setting

IMPORTANT! Calibrate NOMAD each time a battery is placed in the unit.

Place NOMAD on a level, non-magnetic surface, or hold level in your hand. Hold

ENT to access the Calibration setting -- “CAL” flashes waiting for a decision.

You have three options.

a) Press ENT to enter Calibration setting.

b) Press ADV to advance to Declination setting (section 2.1-2).

c) Hold ENT to escape to Compass Mode without disrupting previous calibration.

Press ENT to enter Calibration setting.

The “trn” icon flashes waiting for you to rotate the

compass (Fig. 5).

1. Rotate compass, or your body one complete revolution.

Rotation should take approximately 20 seconds.

Compass Mode

2 -- Compass Mode

Figure 5

2. Press ENT when finished to exit back to Compass Mode.

The compass is now calibrated.

If no buttons are pressed in calibration setting for 2 minutes., NOMAD will auto-

matically escape back to Compass Mode, without being calibrated.

2.1-2 Magnetic Declination Setting

When possible, use magnetic declination adjustment when using a map with the

NOMAD. A magnetic compass senses Magnetic North and provides a bearing

based upon Magnetic North. However, the majority of maps are drawn to True North,

which provides bearings based upon True North. To make the compass “speak the

same language” as the map, you must adjust the compass for magnetic declination.

Determine magnetic declination from a map, or from the Magnetic Declination

Chart (Fig. 6).

Compass Mode

Figure 6

Road maps generally do not have magnetic declination values listed,

so use the magnetic declination chart, for your location. If using a

United States Geological Survey 7.5 minute topographic map, mag-

netic declination is displayed in the legend (Fig. 7).

To access the Calibration setting in Compass Mode, hold ENT.

Then, press ADV to access the Declination setting. “dEC” flashes

waiting for a decision.

You have three options.

a) Press ENT to enter the Declination setting.

b) Press ADV to advance to Calibration setting (section 2.1-1).

c) Hold ENT to escape back to Compass Mode.

Press ENT to enter Declination setting. The first time you enter, “W” flashes waiting

for you to change, or enter a value (Fig. 8).

1. Press ADV to scroll through values (W to E,or 1 to 2 to 3...).

2. Press ENT to save the value and move cursor to the

next digit.

3. After setting the last digit, press ENT to exit back to

Compass Mode.

The declination value will flash for three seconds before NOMAD returns to the

Compass Mode. The declination icon will be displayed in all three modes. Now, the

compass bearing is adjusted for magnetic declination and is based on True North,

same as the map.

In Compass Mode, turn declination adjustment on or off by holding ADV.

To use the compass rotate your body and hold com-

pass level (center bubble in round level). View the

bearing or direction you are facing at the bottom of

the display with cardinal headings in the center (N,

NNE, NE,...). The arrow on the compass rose

always points at north.

Figure 9 shows that you are facing a compass bear-

ing of 90 degrees East.

Compass Mode

Figure 8

Figure 7

Figure 9

True North

Magnetic North

15oE

Your Position

In this mode, you enter a bearing to travel along. An arrow, arrowheads and a stored

forward bearing will help keep you travelling a straight line.

From the Compass Mode, enter Forward Bearing Mode by pressing ADV. The first time

you enter this mode, “- - -” flashes , waiting for an entry. Notice the Forward Bearing

Mode icon is on.

3.1 Store Forward Bearing

1. Point NOMAD in the direction that you want to travel (Ice Lake, in the example).

2. Keep NOMAD level.

3. Hold ENT.

Notice the stored heading (Ice Lake) in the center of the display (90º - Figure 10), with

the actual compass bearing (direction you are facing) at the bottom of the display.

As you rotate your body, a single flashing arrow and

additional arrowheads are displayed in the compass

rose (Fig. 10). The more you turn away from the stored

heading the more arrowheads are displayed.

To face original stored heading (90º - Figure 10) rotate

your body in the direction of the arrowheads, until only

one arrow is left and the compass bearing, at the bot-

tom, matches the stored heading in the center. Now

you are on course and can begin traveling.

If Ice Lake is not in view, sight a landmark along the stored heading (90º) and walk to

the landmark (Fig. 11). At the landmark determine another landmark using the same

stored heading. Repeat until the destination is in view.

To store another bearing follow the steps

in section 3.1, above.

IMPORTANT! Previous bearing

will be deleted when storing

another.

Forward Bearing Mode

Figure 10

Forward

90o

Heading

Figure 11

3 -- Forward Bearing Mode

900

Ice Lake

900

3.2 Clear Forward Bearing

1. In Forward Bearing Mode, hold ADV.

The stored heading will disappear, being replaced by the flashing, “- - -”.

Note! Clearing the forward bearing also clears the reverse bearing.

Reverse Bearing Mode provides a heading that is 180º from the stored forward bearing.

This can be very useful for returning once you’ve finished traveling the forward bearing.

If no heading is entered, “- - -” will flash waiting for an entry. Notice the Reverse

Bearing Mode icon flashes.

4.1 Store Reverse Bearing

The reverse bearing is entered automatically only when a forward bearing is entered.

1. Press ADV to enter Reverse Bearing Mode.

If a heading of 90º to Ice Lake is entered in the Forward

Bearing Mode, a heading of 270º (back to camp) will

automatically be displayed in the Reverse Bearing

Mode (Fig. 12).

To stay on the 270º heading, use the flashing arrow,

arrowheads and the stored reverse bearing, as in

Forward Bearing Mode. Remember to sight a landmark

(270º) if destination is not in view (Fig. 13).

4.2 Clear Reverse Bearing

When clearing a forward bear-

ing, your reverse bearing will

also be automatically cleared.

See section 3.2 -- Clear

Forward Bearing.

Advance to Forward Bearing Mode and clear both the forward and reverse bearings

simultaneously.

Figure 12

Reverse

270o

Heading

Reverse Bearing Mode

4 -- Reverse Bearing Mode Flashing

Figure 13

2700

Ice Lake

2700

This section describes icons displayed only under warning conditions.

5.1 Low Battery Icon ( )

The low battery icon is displayed when you have approximately 5% of battery life

remaining. Immediately after the Low Battery icon is displayed, you have approximately

1 - 1.5 hours with backlight on, or approximately 20-25 hours with backlight off before

the NOMAD will not power ON.

IMPORTANT! When replacing the battery all stored information will be lost. Remember

to recalibrate the compass when replacing the battery.

5.2 Disturbance Icon (DIST )

The disturbance icon is displayed when an external disturbance is sensed by the

NOMAD. If the icon is displayed, check yourself for metal objects (belt buckles, rings...),

or check for nearby objects that could cause the disturbance. Remove NOMAD from

the disturbance.

If the disturbance is caused by something the NOMAD cannot be removed from (con-

centration of Iron Ore in the ground), recalibrate the NOMAD to differentiate between

Magnetic North and the disturbance. You must use the compass in the same position

that it was calibrated, however. If you move from that position, NOMAD may have to

be recalibrated. See section 2.1-1 for Calibration.

Accuracy: +/- 5º with 1º display resolution

Update Rate : 25 times / second (during calibration)

1 time / second (during use)

Magnetic Declination Range: 69º West to 69º East

Battery Type: Qty. 1 - CR2032, 3V Lithium

Typical Battery Life: 500 hours (backlight off)

30 hours (backlight on)

Operating Temperature Range: 0º to + 140º F (-18º to +60º C)

Storage Temperature Range: -10º to + 160º F (-23º to +71º C)

Icon Warnings

5 -- Icon Warnings

6 -- Specifications

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