Suunto Tandem User manual

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SUUNTO TANDEM

This publication and its contents are proprietary to Suunto Oy.

Suunto, ristop Computer, Suunto Tandem and their logos are registered or

hile we have taken great care to ensure that information contained in this

documentation is both comprehensive and accurate, no warranty of accuracy is

expressed or implied. Its content is subject to change at any time without notice.

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YHTEYSTIEDOT, KUNDSERVICE, KONTAKTER

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Suunto website www.suunto.com

Suunto Tandem

USER'S GUIDE

TABLE OF CONTENTS

SUUNTO TANDEM, TWO PRECISION INSTRUMENTS IN ONE ....................4

ADJUSTING OPTICS .........................................................................................4

CLEANING THE TANDEM .................................................................................5

CONTACT MEASURING ...................................................................................6

BEARING COMPASS ........................................................................................7

ISO 9001 ..........................................................................................................11

CLINOMETER ..................................................................................................11

SUUNTO TANDEM, TWO PRECISION INSTRUMENTS IN ONE

Congratulations on your choice of the Suunto Tandem. The Suunto Tandem is all you

need for both slope/height measurements and compass bearings. It is a liquid-filled

precision compass and clinometer in one compact aluminum housing that is easy to

use and rugged enough to protect against impact, corrosion, and water. This top-

quality precision instrument combines precision accuracy with fast and easy one-

hand operation.

The pocket-size construction renders the Suunto Tandem most suitable for every type

of work. Its unique shape makes it comfortable to hold in your hand. The optics of the

Tandem can be adjusted to make the reading easier. The clinometer scale is in

degree and percent (0 – 90°, 0 – 150 %) while the compass scale is azimuth (0 –

360° with reverse scale). Both the clinometer and compass are graduated in 1° / 1 %

increments and each is individually calibrated. The two edges at 90 degrees angle

make the contact measurements possible, for example, when installing and

positioning a satellite antenna.

ADJUSTING OPTICS

The optics of the Tandem can be adjusted by turning the eye

piece with your fingers as shown in Figure 1. Adjust the eye

piece so that both the hairline and the scale are sharp and the

eye piece slot settles in a vertical position in the bearing

compass and in a horizontal position in the clinometer.

Fig. 1. Adjusting optics

CLEANING THE TANDEM

In the case humidity or dirt develop inside

the Tandem it can be cleaned by removing

the detachable eye piece. The eye piece can

be removed by rotating it counter-clockwise

(Fig. 2). Rinse with clean water, allow to dry

and carefully reassemble the eye piece.

Caution! Do not use detergents or solvents

of any kind as they might cause damage to

the capsules.

Code:

PM-5/360PC

TANDEM

Fig. 2. Removing the eye piece

CONTACT MEASURING

The Tandem can be used for aligning satellite

dish antennas or for other type of contact mea-

suring. The clinometer incorporates two different

contact edges (see Fig. 3) which enable the mea-

surement to be made compared to the horizontal

or vertical plane. The scale (0 – 90 – 0 degrees)

can be used in contact measuring and it gives the

angle of the surface compared to the contact

plane.

TWO CONTACT

EDGES

Code:

PM-5/360PC

TANDEM

Fig. 3. Edges for contact

measurement

BEARING COMPASS

Construction

The bearing compass is designed to combine extreme accuracy with ease and speed

of operation. The card is supported by a jewel bearing and it is immersed in a

dampening fluid, giving vibrationless, smooth movement. The compass has been

given permanent antistatic treatment.

Inclination - balancing

The compass card is balanced to correspond to area within which the compass is

used. When using the compass elsewhere (e.g. on trips abroad) the change of the

vertical magnetic field could make the compass card dip and this may cause

difficulties in taking the bearing. The balancing zone (see Fig. 4), if other than one, is

indicated on the back of the instrument below the serial number, contact your dealer

for details.

Fig. 4. The balancing

zones

Declination

The compass reads magnetic north, which differs from true north by the amount of

the local declination which is printed on your map. In order to lay out on a map a

bearing obtained with the compass, the plus or minus declination for the locality in

question must be added to or subtracted from the compass bearing.

Deviation

Iron and steel objects close to the compass, like a wristwatch or steel rimmed

eyeglasses, may cause deviation. Whenever possible, remove such objects to a safe

distance. Large structures like buildings, reinforced concrete quays etc. will cause

deviation at some distance. A reverse sighting from the opposite end of the target line

will show up any deviation present.

Operation

With both eyes open, aim the compass so that the hairline is superimposed on the

target, when viewed through the lens. The main scale (large numbers) gives the

bearing from your position to the target, the small numbers give a reverse bearing

from the target to your position. This feature is of great assistance when calculating a

precise position.

Use the left or the right eye as preferred. With both eyes open, an optical illusion

makes the hairline appear to continue above the instrument frame, superimposed on

the target. This improves reading accuracy and speed.

Because of an eye condition called heterophoria,

the reading accuracy of some users may be

impaired. Check for this as follows:

Take a reading with both eyes open and then close

the free eye. If the reading does not change

appreciably there is no disalignment of the eye

axes, and both eyes can be kept open. Should there

be a difference in the readings, keep the other eye

closed and sight halfway above the instrument

body. The hairline now rises above the instrument

body and is seen against the target (Fig. 5).

Code:

PM-5/360PC

TANDEM

0350

190 180 180

View

Fig. 5. The hairline is seen against the target

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