BC 12.12 STS

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All SIGMA SPORT bike computers can display a maximum speed of 199.8 km/h.

– Multiply the wheel diameter in mm or cm by 3.14.
– Measure the distance travelled in one complete turn of the wheel.

You can make a warranty claim in relation to material and workmanship defects. The warranty does not cover batteries, wear-and-tear parts, wear caused by commercial usage, or accidents.You are only entitled to make a warranty claim if the SIGMA product itself has not been opened without authorization and the receipt of purchase is provided.

The DATA CENTER software can be downloaded from the SIGMA online shop at www.sigma-data-center.com.

The trip data can be manually input directly into the software or automatically transmitted using the optionally available docking station.

The docking station not only enables you to automatically transmit data but also to conveniently configure your bike computer via your PC.

It can be purchased from the SIGMA online shop at www.sigma-data-center.com or in store from your specialist retailer.

All SIGMA SPORT bike computers come with a battery compartment, which can be opened and closed by the user with the aid of a coin or a tool (supplied). When changing the battery, always note the position of the O-ring placed on the cover to ensure that the bike computer remains watertight.

The bike computer’s display can change in very high or low temperatures. In very high temperatures, the display gets darker; in very low temperatures, the display reacts more slowly. As soon as the temperature has cooled down or warmed up, the display returns to the original state. The display’s temperature range is -10°C to +50°C.

Your SIGMA SPORT bike computer is a measuring instrument that must be handled carefully.

After a prolonged period of use, especially if the bike and/or bike computer is/are stored outside, the contacts on both parts should be checked for corrosion. In the event of slight corrosion, you should carefully clean the contacts. Store your bike computer in a cool, dry place. After a prolonged winter break, we advise you to check the batteries in both the computer head and the transmitter(s). Although the power consumption during storage is extremely low, temperature fluctuations can impair the battery quality. When changing the battery, always use branded goods.

When cleaning the bike, remove the bike computer from the bracket. When using a high-pressure washer, avoid spraying the bike computer at close range. Ideal scenario: remove the bike computer from the bracket.

All SIGMA SPORT products are spray-resistant so that they can also be used in the rain. The bike computer is not suitable for use when swimming and is not machine washable!

Your bike computer can be switched from km/h to mph in the settings menu (under the function “unit”).

Please note that switching from km/h to mph automatically changes the time from 24h format to 12h format. The wheel size is also automatically converted. For information on how to make the switch, please see the operating instructions.

All SIGMA SPORT bike computer accessories are available on the market. If your retailer does not stock the replacement you can find the product number in the accessories list and order it from your retailer.

For information on how to change the bike computer/transmitter battery, please see the set-up instructions.

The SIGMA SPORT bike computers hide all total values during rides. This prevents you from unnecessarily clicking through the total values while cycling. As soon as there are no speed signals, the total values all reappear.

On using quality batteries for one hour per day or 7,300 km per year at an average speed of 20 km/h (batteries available from SIGMA SPORT®).

TOPLINE 2012 bike computers are all ONLY compatible with the dual-sided docking station (ref. no.: 00120). The earlier version of the docking station is solely compatible with models in the TOPLINE 2009 series.

The bike computers come in ‘deep sleep mode’. This prevents undesired energy consumption during storage and ensures that the bike computer offers 100% battery capacity on purchase. Depending on the model, to activate the bike computer, press and hold the bottom button(s) for at least five seconds.

All wired SIGMA SPORT bike computers switch on and off automatically.

All STS (Sigma Transmission System) wireless SIGMA SPORT bike computers switch on and off automatically. The bike computer switches on automatically when:
The bike computer is mounted in the bracket and the bike moves (STS devices) or the wheel is rolled (wired devices).

Only the BC 8.12 ATS has to be awoken by pressing a button.

The bike computer switches off automatically after five minutes (sleep mode) providing that no speed signals are received and no buttons are pressed.

You can use the set-up instructions to help you attach your bike computer.

Set-up videos for the individual computers are however also available.

STS transmitter range

ATS transmitter range:

If the battery in the wireless transmitter is cold or low, the range may shorten.

Both wireless transmission systems from SIGMA SPORT have been developed on the same basis, with the intention of offering stable, interference-free transmission.

The key differences between the two transmission systems can be seen in the table below:

ATS STS
Transmission type Analog Digital
Encoding yes yes
Frequency type Low frequency Low frequency
Available channels Speed Speed
Cadence
Heart rate
Range 70 cm Speed: 90 cm
Cadence: 110 cm
Heart rate: 110 cm
Value updating Yes, trip distance Yes, trip distance and ride time

Various electrical and electronic components or devices can interfere with transmission. This also applies to battery-powered lights, and in particular LED lights. The pulsing of the LED (fast, regular switching on/off of the LED) can generate a frequency, which can in turn interfere with the bike computer’s transmission.

The frequency generated can be isolated within the LED light so that there is no interference with the transmission.

Sigma LED lights are diode suppressed meaning that they do not generate an interfering electromagnetic field. You can resolve problems by attaching the LED light to the handlebars approx. 10 cm from the bike computer.

The fuel save function automatically calculates your vehicle’s theoretical fuel consumption if you had used your car to drive the route you have cycled.
The calculation of the theoretical fuel consumption is based on your vehicle’s average consumption. You enter this value in the settings and the bike computer automatically calculates the amount of fuel you would have used if you have driven each route you cycle.
You can therefore calculate the real saving that you have made over the year by using your bike instead of your car.

The trip section (TS) counter is a separate time and distance counter with a manual start/stop function, which enables the cyclist to separately record a trip section.

A pure voltage measurement (e.g. with a multimeter) without any battery load does not provide precise information about the (residual) capacity of a button cell battery. The battery can still have a voltage of 3 V without load but of only 2.4 V when under load, e.g. if the wireless receiver is operating.

The bike computer measures the voltage of the button cell under a defined load. It can then calculate the cell’s residual capacity based on the voltage dip under this load. The “Low Bat” message is activated when the total capacity falls below approx. 25%.

Speed transmitters can only be attached to some rear wheel struts and only when using devices with the STS system. The STS system has been designed for the speed transmitter to be attached to the fork.

Attaching the speed transmitter to the bike’s rear wheel strut means that the antennas are unfavorably positioned in relation to one another and that the range is therefore reduced. If the speed transmitter is attached to the rear wheel, a check should therefore always been conducted to see if transmission is stable.

Please note: The reduced range and the unfavorable positioning of the antennas in relation to one another can lead to the low battery message not appearing but gaps in transmission already occurring. In such a case, please immediately change the batteries for the receiver and the transmitter.

Your bike computer has a function in the settings menu that enables a three-stage contrast adjustment. For information on how to use this, please see the operating instructions.

Wheel circumference min. 500 mm

Wheel circumference max. 3999 mm

With the ROX 12.0 GPS, even an input less than 500 mm can be adjusted.

The speed is displayed up to 199.8 km/h with a wheel circumference set at 2,095 mm.

V případě materiálových a výrobních chyb lze uplatnit záruční nároky. Ze záruky jsou vyjmuty baterie, elastické popruhy, textilní hrudní popruhy, např. Comfortex, opotřebitelné díly a opotřebení v důsledku komerčního použití nebo nehod. Pokud se nezobrazí žádná rychlost, může to být způsobeno vysílačem nebo počítačem.

Příslušenství je k dispozici v internetovém obchodě SIGMA.