SILVA 100BH Compass Bulkhead Mount with Illumination Instruction Manual
- June 5, 2024
- SILVA
Table of Contents
FULL VERSION MANUAL
100BH
Art.no 37183-0011 (MN), 37183-0013 (ME), 37183-0015 (MS)
SILVA MARINE COMPASS 100B/H
SILVA 100/125 is especially suitable for sailing boats, motor sailing vessels
and larger motor yachts. The compass permits up to 45° healing and unlimited
tilting fore and aft.
SILVA 100/125 is supplied with a yellow main lubber line and two yellow aid
lines 45° on each side of the main lubber line. It has a built-in clinometer
+/- 45°.
The compass is delivered with built-in illumination.
The compass can be supplied with compensators as an optional extra.
PRODUCT OVERVIEW
The packaging includes:
- Compass unit
- Illumination
- Mounting kit
ILLUMINATION
This compass can be supplied with illumination 12 V.
Adaptation to 24V-illumination connected in series by a resistor of 270 ohm,
0.5 W.
POSITIONING
SILVA 100/125 should be positioned vertically or sloping (max 30°). Vertically
only, if a compensator is fitted.
BULKHEAD MOUNT
The compass should be positioned where it can be easily read from all angles, even in darkness when illuminated. Position the compass as far as possible away from iron objects or other disturbing magnetic sources such as loudspeakers, windscreen wipers, instruments, etc. NB! Silvas electronic instruments do not disturb the compass. When checking for magnetic disturbance, use an ordinary SILVA handheld compass, held in the fore-and-aft direction around the intended mounting site. In most cases, 0.5 to 1 meter between the compass and the source of disturbance will be sufficient. Do not forget to switch on all electrical equipment near the compass when making this check.
MOUNTING
SILVA 100/125 is intended for flush mounting.
The compass must be mounted exactly at right angles to the boat’s longitudinal
direction. NB! Do not take It for granted that for instance, a bulkhead is at
a right angle to the boat’s longitudinal direction. Drill a hole by using the
enclosed template. The compass must have a certain mounting depth, otherwise,
the compass’ expansion membrane is affected, which could lead lo leakage.
COMPENSATION AND DEVIATION (COMPENSATOR SOLD SEPARATELY)
Compensation is recommended if the deviation is more than 5 degrees when the
compass is in its normal mounting position.
If the error is less than 5 degrees, it is sufficient to produce a deviation
table.
Compensation is made with the two compensation adjuster screws ”E/W” and ”N/S”
in order to reduce the errors caused by iron objects or other sources of
magnetic disturbance. The compensation adjuster screws are situated at the
compass’s lower front edge.
When compensating, the boat should be in an area that is not affected by
permanent- or electromagnetic disturbances.
- Aim the boat due North and turn the ”N/S” screw until the compass reading is 0°.
- Aim the boat due East and turn the ”E/W” screw until the compass reading is 90°.
- Aim the boat due South. If the compass does not show 180°, turn the ”N/S” screw until the error is halved. (E.g. If the error is 6° – turn the screw until the error is 3 °.)
- Aim the boat due West. If the compass does not show 270°, turn the screw until the error is halved.
- Go through the procedure again and check the adjusted values.
- Check the compass every 20 degrees and produce a deviation table and deviation curve.
As the magnetic conditions in a boat are liable to change, we recommend checking of the compass once a year and always after the installation of equipment that might affect the compass.
NB! Do not regard the compass as an accurate navigational instrument until the compensation is carried out and the deviation table is produced. Whenever in doubt, please seek the advice of a compass adjuster!
MAINTENANCE
To clean the compass, use a mild soap solution or detergent. Do not use strong
solvents, such as spirit, acetone or petroleum.
The compass tolerates temperatures down to -30°C. It is advisable not to
subject it to severe cold for long periods.
TECHNICAL SPECIFICATIONS
Type of compass: Sailing/bulkhead mount compass
Illumination: Yes, 12V. Colour: red
Lubber lines: Yes, center and side view at 45°
Gimballed cradle: Yes
Accuracy: ±0.5°
Apparent card diameter: 100 mm
Compensator: Optional
Card type: Cone
Card graduation: Edge: every 5°
Heeling angle: Roll: 45° Pitch: 30°
Heeling angle scale: Yes
Mounting: Bulkhead
Mounting angle: +10° to +110°
Temp operating range: -10°C to +70°C
Storage temp: -30°C to +70°C
Material: Acrylic/ABS
Weight: 910 g,
Dimensions:
PROTECT THE ENVIRONMENT.
The Compasses should be recycled and must not be thrown in the regular trash.
Dispose of these items in accordance with applicable local regulations.
For more information please visit
www.silvasweden.com