SILVA 100FC User guide

FULL VERSION MANUAL

100FC

Art. no 38111 (MN), 38129 (ME), 38128 (MS)

SILVA MARINE COMPASS 100FC

100FC is a m arine comp ass made for p owerboat s and sailing b oats. It ha s a narrow desi gn
to fit any d ashboard . This is the per fect com pass for yac htsmen wh o demand abso lute ac­cura cy and a stead y reading in al l conditio ns.

Featu res includ e double sca les, a built-in d eviation c ompensat or, integrate d illuminati on in
the adj ustable pr otection c over, and four lu bber lines th at remain ver tical eve n in rough seas .
100FC al so has a bult-in 3- part prot ection cov er and a red bac k light (12V).

100FC is f lush mounte d with a dome si ze of 100 mm and a mou nting hole si ze of 100 mm. It
inclu des a foam gask et, mounti ng screws an d a mounting tem plate for ea sy mounting . This
comp ass also inc ludes a comp ensator sc rew driver. Ma x healing angl e: 30 degree s. Max pitch
angle: 3 0 degrees .

This c ompass is av ailable in MN, M E and MS balanc ing.

SILVA QUALITY

The Sil va quality e nsures dur ability an d excellent r eadabilit y; the caps ule bowl is ma de
from c lear and scr atch resis tant acr ylic. The co mbination o f a sapphire je wel bearing a nd a
harde ned steel pi vot minimize s frictio n, which in tur n gives rapi d and accura te movement s.
Silva m arine comp asses have a n o-spin com pass card i s designed fo r perfec t dampening an d
exact r eading. You ca n trust tha t even when your b oat is expos ed to rough se as the gimbal led
suspe nsion syst em makes sure t he functio nality is n ever distur bed hence yo u will alway s be
able to r ead the comp ass accur ately.

PRODUCT OVERVIEW

• Narro w design to fit an y dashboar d

• Suita ble compas s for most la rger sailing and motor yac hts.

• Flush mount

• Built-in i lluminatio n on upper sca le. Enables n ight naviga tion.

• Built-in deviation compensator

• Double scales

• Prote ctive cov er – protect s and prolon gs the life of yo ur compas s.

• 4 Lubbe r lines – enabl es reading f rom diere nt position s.

• The yel low main lubbe r line is curv ed to reduce p arallax er rors.

The packaging includes:

• Compass unit

• Compensator

• Mounting kit

ILLUMINATION

Built-in illumination for 12V.
Adapt ation to 24V-ill umination: c onnect 27 0 ohm, 0.5 W re sistor in ser ies.

POSITIONING

The co mpass shou ld be positio ned where it c an be easil y read from all a ngles, eve n in dark­ness w hen illumina ted. Posit ion the comp ass as far as p ossible awa y from iron obj ects or
other d isturbing m agnetic so urces as lou dspeaker s, windscr een wipers , instrume nts etc.
NB! Silva’s e lectroni c instrume nts do not dis turb the co mpass.

When ch ecking for m agnetic dis turbanc e, use an ordin ary Silva ha ndheld comp ass, held in
the for e-and-af t directio n around the in tended moun ting site. In m ost case s 0.5 to 1 metre
betw een the comp ass and the so urce of dis turbance w ill be sucie nt. Do not for get to
swit ch on all elec trical equi pment near t he compass w hen making th is check.

MOUNTING

FLUSH MOUNT

COMPENSATION AND DEVIATION

Comp ensation is r ecommend ed, if the dev iation is mo re than 5 degre es, when th e compass
is in it s normal moun ting positi on.

If the er ror is less t han 5 degree s, it is suci ent to produc e a deviatio n table.
Adjus t by using a comp ensator (op tional ext ra) and elimina te or at leas t reduce the e rrors
that ir on or other so urces of mag netic distu rbance may h ave on the com pass.

When c ompensat ing, the boat s hould be in an ar ea that is not a ected by pe rmanent- or
electromagnetic disturb ances.

1. Aim the b oat due Nor th and turn th e ”N/S” scre w until the com pass read ing is 0°.

2. Aim the b oat due Eas t and turn the ”E /W” scre w until the co mpass rea ding is 90°.

3. Aim the b oat due Sou th. If the com pass does no t show 180°, tur n the ”N/S” sc rew until the
error i s halved. (E .g. If the err or is 6° - turn the sc rew until th e error is 3 °.)

4. Aim the bo at due West . If the compa ss does not sh ow 270°, tur n the screw unt il the error
is halved.

5. Go thro ugh the proc edure again a nd check the a djusted val ues.

6. Check t he compas s every 20 deg rees and pro duce a devia tion table a nd deviatio n curve.

As the m agnetic con ditions in a bo at are liable t o change, we r ecommend c hecking of th e
comp ass once a yea r and always a fter inst allation of e quip ment which mi ght aect th e
compass.

NB! Do no t regard the c ompass a s an accura te navigati onal instr ument unti l the compen ­satio n is carrie d out and the dev iation tab le is produc ed. Whenev er in doubt, p lease see k
the adv ice of a comp ass adjus ter!

MAINTENANCE

To clean the c ompass, u se a mild soap s olution or de tergent. D o not use str ong solvent s,
such as s pirit, ac etone or petr oleum.
The co mpass tole rates temp eratures d own to -30°C . It is advisa ble not to subj ect it to seve re
cold for long periods.

TECHNICAL SPECIFICATIONS

Type of co mpass: Sai ling / Power bo at compass
Illumination: Yes, 12V. Colo ur: red
Lubber lines: Yes, ce ntre (fron t and back) and 2 x side view at 4 5°
Gimballed cradle: Yes
Appa rent card d iameter: 100 mm.
Compensator: Yes
Card t ype: Cone
Card graduation: Edge: ev ery 5° Top: ever y 5°
Heeling angle: Roll: 30° Pi tch: 30°
Heeling angle scale: No
Mounting: Flush
Mounting angle: pitch 0° t o +15°
Temp operating range: -10°C to +70°C
Storage temperature: -30 °C to +70°C
Adjustable cover: Yes
Material: Ac ryl ic/AB S
Weight : 668 g
Dimensions:

Silva 10 0FC is design ed for horiz ontal flus h mounting. I t should be mou nted in a stea dy base
to prev ent oscilla tion of the ca rd. Mounti ng angle: pitc h 0-15°.

1. Drill a h ole with Ø 97 mm a ccording t o the mountin g template. NB ! Be sure to have a f ree
depth o f 60 mm minimum .

2. Pull to s eparate th e base part a nd top part of t he compas s.

3. Plac e the base par t in the hole, w ith the foam g asket betw een the comp ass and the de ck
to ensure water protection.

4. Make sure t hat the boat s ymbol (fou nd on the base p art) is faci ng towards th e bow.

5. Drill t he 4 screw hol es as per the te mplate. Moun t the base pa rt to the deck w ith the
enclo sed 4 screw s. NB ! Replace ment screw s must be of no n-magnetic m aterial. Fo r all
throu gh deck mount ing, sealin g is recomme nded.

6. Align th e top part of t he compas s in the fore-a nd-aft dir ection and m ount it to the b ase
part b y clicking i t into positi on. Make sure t o pull the cabl e for the illum ination thr ough the
hole in t he base par t before mou nting the top p art.

PROTECT THE ENVIRONME NT.

The Co mpasses s hould be rec ycled and mus t not be throw n in the regula r trash.
Dispo se these it ems in accor dance with a pplicable l ocal regul ations.

For more information please visit www.silvasweden.com