Sigma BC 12.12 User manual

BC 12.12 /BC 12.12
BIKE COMPUTER TOPLINE
VIDEO
TUTORIAL:
INSTALLATION
VIDEO:
FUNCTIONS
SI GBBGRUSEDKFINO SK

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Contents
1. Introduction to the BC 12.12 / BC 12.12 STS 02
1.1 Initial use 02
1.2 Navigation principle 03
1.3 Set-up 04
2. Functions / Properties 04
2.1 General 04
2.2 Special functions 05
2.3 STS features 06
3. Settings / Deletion 08
3.1 Settings 08
3.2 Determining the wheel size 08
3.3 Deleting the functions 08
4. Important Notes / Troubleshooting 09
4.1 Technical data 09
5. Warranty Conditions 11
GB
1. Introduction to the BC 12.12 / BC 12.12 STSENGLISH
You can find the CE declaration under:
www.sigmasport.com
1.1 Initial use
The bike computer comes in “deep sleep mode”.
To exit this mode, press and hold the MODE 1 and
SET buttons for five seconds.
On waking up, the bike computer
will be in active mode.
To access the settings,
press the SET button.

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1.2.1 Button functions 1.2.2 Assigning the functions
1.2 Navigation principle
RESET button for
– Deleting the current
values
– Scrolling backward
You can access the following
functions by pressing the
MODE 2 button:
fuel (liters) / time / TS distance /
TS time / temperature /
total distance / total time /
total fuel (liters)
You can access the following
functions by pressing the
MODE 1 button:
trip distance / trip time /
Ø speed / max. speed
MODE 2 button for
– Switching between
several functions
– Scrolling forward
MODE 1 button for
– Switching between
the bike functions
– Scrolling forward
SET button for
– Switching to / from the
setting mode
– Scrolling backward

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2.1 General
– Current / average speed comparison 
If you are traveling at approximately
your average speed, nothing is
displayed. If you are traveling
quicker than your average speed,
( ) is displayed; if you are
traveling slower ( ) is displayed.
This information is displayed in
almost all functions, except the
basic settings.
– Service interval The service interval informs
you when you have cycled a specified number of
kilometers and a bike inspection is due. This
service interval can only be enabled/disabled and
pre-configured by your specialist retailer. The
device comes with the service interval disabled.
1.3 Set-up
Please see the leaflet provided for the set-up
diagrams!
1.2.3 Display layout
2. Functions / Properties
Top field:
Speed
Middle field:
Description of the functions
Bottom field:
Current value
1.2 Navigation principle

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2. Functions / Properties
2.2 Special functions
– Fuel saving The BC 12.12 / BC 12.12 STS
calculates the fuel saving you have made on your
bike on the basis of your automobile’s average
fuel consumption. You therefore quickly and easily
discover the savings that you have clocked up on
your bike. The bike computer calculates how many
liters of fuel you have saved.
– Hiding total values during the trip If the
BC 12.12 / BC 12.12 STS receives speed signals,
all the total functions (distance, time, and fuel
consumption) are hidden on the display. If no speed
values are received, the functions are once again
displayed.
www.sigma-data-center.com
– Battery status The battery status of the computer
head unit is displayed shortly before the battery
runs out. “ low / computer” appears on the display.
After changing the battery, only the time needs to be
re-set.
– Memory chip Thanks to an inbuilt memory chip,
all total values and settings are permanently stored
in the bike computer. This means that you do not
need to reconfigure any settings (except for the time)
after changing the battery.
– PC compatibility The bike computer is PC-
compatible. After purchasing the SIGMA DATA
CENTER software and docking station, you can simply
and effortlessly log your total and current values on
your PC. You can also configure your bike computer’s
settings on the PC.

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2.3 STS features
– Synchronization Attach the BC 12.12 STS to the
bracket – zeros flash for the speed.
There are two ways of synchronizing the speed:
– 1. Start cycling – the receiver usually
synchronizes with the transmitter after 3-4 wheel
rotations.
– 2. Spin the front wheel until the speed values
stop flashing.
Removing the BC 12.12 STS from the bracket
severs the connection.
– Trip Section Counter (TS) This is a separate
distance / time counter that is manually started and
stopped. The trip section counter makes it possible
to evaluate a trip section or interval training session
without influencing the total values for the trip.
2. Functions / Properties
1 2

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– Message “Too Many Signals” Increase your
distance from other cyclists (transmitters) and
press any button. Synchronization re-starts. (If the
transmission connection is lost during your trip and
no longer functions, press and hold the MODE 1
button for more than three seconds to start manual
synchronization. “Sync. RESET” flashes on the display)
2. Functions / Properties
– Transport mode When transported on a bike
rack or in the car (if clicked into the bracket),
the BC 12.12 STS switches to “transport mode”
via an integrated movement sensor. “Transport”
appears on the display. Press any button to exit
this mode.
> 3 sec.

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3.3 Deleting the functions
Please see the diagrams for how to delete the
functions.
Please note that the trip section (TS) counter,
stopwatch, and countdown timer are not deleted
with the current trip values.
3. Settings / Deletion
3.1 Settings
The following settings can be configured: language /
unit / wheel size / time / fuel l /100 km / total distance /
total time / total fuel (liters) / contrast. Clear diagrams
of how to set each of these functions can be found in
the enclosed leaflet.
3.2 Determining the wheel size
To measure your speed precisely, the wheel size must
be set on the basis of your tire size. To do this, you
can:
A– Calculate the wheel size using the formula provided
in the wheel size chart.
B– Determine the value from the drawings in the
wheel size chart.
C– Take the value that corresponds to your tire size
from the wheel size chart.

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4.1 Technical data
4.1.1 Battery indicator / replacement
Please see the enclosed diagrams for how to insert or
remove the battery. After changing the battery in the
computer head unit, only the time needs to be re-set.
BC 12.12 Type CR 2032 /
computer head unit: 1.5-year service life*
BC 12.12 STS Type CR 2032 /
computer head unit: 1-year service life*
Speed transmitter: Type CR 2032 /
1-year service life*
* when used for one hour per day
4. Important Notes / Troubleshooting
4.1.2 Troubleshooting
No speed:
– Is the computer correctly fastened into the
bracket?
– Check the distance between the magnet and the
sensor (max. 5mm) (with STS, max. 12 mm).
– Is the magnet correctly positioned?
Incorrect speed:
– Are two magnets attached to the bike?
– Is the wheel size correctly set?
Further troubleshooting solutions can be found in our
FAQs at www.sigmasport.com
1. CAUTION:
RISK EXPLOSIVE IF BATTERY IS REPLACED
BY AN INCORRECT TYPE.
2. CAUTION:
DISPOSE OF USED BATTERIES ACCORDING
TO THE INSTRUCTION.

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4.1.3 Min. / max. / factory settings
Standard Min. Max. Unit
Current speed 0.0 0 199.8 kmh / mph
Trip Dist 0.00 0.00 9,999.9 km / mi
Ride Time 0:00:00 0:00:00 999:59:59 h:mm:ss hhh:mm:ss
Avg Speed 0.00 0.00 199.8 kmh / mph
Max. Speed 0.00 0.00 199.8 kmh / mph
Fuel (liters) 0.00 0.00 9,999.9 Liters / gallons
Clock 00:00 00:00 23:59 hh:mm
TS Distance 0.00 0.00 9,999.9 km / mi
TS Time 0:00:00 0:00:00 999:59:59 h:mm:ss hhh:mm:ss
Temperature 0.0 -10 / 14 70 / 158 °C / °F
Tot Distance 0 0 999,99 km / mi
Total Time 0:00 0:00 19,999 h:mm hh.hhh
Total fuel (Ltr) 0.0 0.0 9,999.9 Liters / gallons
Wheelsize 2,155 500 3,999 mm
4. Important Notes / Troubleshooting