Pietsch Bicycle Computers, Bicycle Speedometers, Bicycle Accessories C012 C012 Ficha De Dados

3.  The magnet must pass directly over the middle part of the speed sensor when the wheel turns.
4.  Adjust the air gap between the speed sensor and the magnet to no more than 5 mm by gently turning 

the speed sensor. In order to ensure reliable operation, they must not touch one another, neither should 

they be too far apart. Otherwise, the magnetic sensor in the speed sensor will not detect the passing 

of the magnet properly.

5.  Check that the magnet does not rub against the speed sensor.

MODE

SET

MODE button

Switches between the clock display and riding time "RTM", total trip time "TTM", trip 

distance "DST" and total distance travelled "ODO".

SET button

Activates the light for a few seconds.
Switch between the current speed 

, maximum speed "MAX" and average speed 

"AVG".

The riding speed is displayed when cycling. The bike symbol flashes together with an 

arrow symbol on the trend indicator (faster or slower).

When the battery level symbol 

 is displayed, you are advised to change the battery in the 

bicycle computer promptly.

1.  Remove the battery compartment cover from the underside of the bicycle computer by turning 

anticlockwise. Use a suitable tool or other aid, e.g. a coin.

2.  Remove the battery.
3.  Insert a CR2032 battery with correct polarity in the battery compartment (observe plus/+ and minus/-). 

The positive terminal (+) faces outwards towards you.

4.  Close the battery compartment.

The wheel circumference must be entered into the bicycle computer in order for it to be able to display 

distances and speeds. You must measure or calculate the wheel circumference before inputting it into the 

computer.
Measuring the wheel circumference
Find a level and smooth surface (e.g. garage floor) to make the measurement. Mark a position on the 

outside of the tyre with a line; do the same on the floor (point A). Push the bicycle forward until the tyre has 

completed a full revolution. Mark this point on the floor (point B). Measure the distance from point A to B with 

a tape measure or similar measuring tool. This is the wheel circumference that must be input into the bicycle 

computer (the value in centimetres).
Calculating the wheel circumference
Alternatively, the wheel circumference can be calculated using the following formulae: 
Ø in centimetres × 3.1416 = wheel circumference (cm)
Ø in inches × 2.54 × 3.1416 = wheel circumference (cm)
Example: 26 inches × 2.54 × 3.1416 = wheel circumference of 207.5 cm

•  The bicycle computer is ready to use after inserting the battery.

•  If only the time is displayed or the "SLEEP" status is shown, turn on the bicycle computer 

by briefly pressing any button. The speed sensor cannot be turned off. It consumes so little 

energy in standby mode that it is not necessary to turn it off.

•  If no button is pressed or no movement is detected by the speed sensor, the bicycle 

computer switches into standby mode after approximately 5 minutes to save electricity. Only 

the time is displayed on the LCD.

•  If the period of inactivity lasts for 7 days, the bicycle computer switches itself into sleep 

mode. "SLEEP" is displayed on the LCD.

•  To put the bicycle computer into sleep mode manually, press and hold the MODE and SET 

buttons at the same time until "SLEEP" is shown on the LCD.

•  Press any button to wake the computer from sleep mode.

•  Press the MODE button to move through the display cycle (in a clockwise direction).

Time

Journey time

Total journey time

Distance travelled

Total distance travelled

•  Press the SET button to toggle between current speed 

, the last saved maximum speed value "MAX" 

and average speed "AVG".

Make these settings when the bike to which the bicycle computer is mounted is stationary.

1.  After inserting the battery or the general reset of all display values (see "Clearing saved values and 

reset"), the LCD shows all display elements at the same time. The first adjustable variable flashes after 

approximately 2 seconds. If no button is pressed for approximately 30 seconds, the bicycle computer will 

switch itself back to the time display.

2.  The time display format flashes after approximately 2 seconds. Press the SET button to change the time 

display format (12 or 24 h). Press the MODE button to confirm the setting.

3.  The hour value flashes. Press the SET button to change the hour value. Press the MODE button to 

confirm the setting. The minute value flashes. 

4.  Press the SET button to change the minute value. Press the MODE button to confirm the setting. The 

second value flashes.

5.  Press the SET button to reset the second value to zero. Press the MODE button to confirm the setting.
6.  The unit settings flash; "UNIt" is displayed. Press the SET button to change the format of the units. Both 

metric and imperial units can be chosen. Press the MODE button to confirm the setting.

7.  The digits for the wheel circumference flash. Press the SET button to set the first digit of the wheel 

circumference. The digits 0-9 can be chosen in succession. Press the MODE button to confirm the 

setting of each digit. The next digit flashes. Repeat this procedure until all digits have been set. The 

value to be input in centimetres should be determined as described in the section "Determining the 

wheel circumference".

8.  After confirming the last digit the kilometre display flashes; "SEt OdO" is displayed. Press the SET 

button to manually set the first digit of the total distance travelled. The digits 0-9 can be chosen in 

succession. Press the MODE button to confirm the setting of a digit. The next digit flashes. Repeat this 

procedure until all digits have been set.

9.  After confirming the last digit the time display flashes; "SEt ttM" is displayed. Press the SET button to 

set the first digit of the total time travelled (in hours). The digits 0-9 can be chosen in succession. Press 

the MODE button to confirm the setting of a digit. The next digit flashes. Repeat this procedure until all 

digits have been set. Press the MODE button to confirm; the bicycle computer returns to the normal 

display (time display).

•  Press the MODE button for about 3 seconds when one of the values for "DST“, "ODO“, "TTM“ or "RTM“ 

is displayed on the bicycle computer. "reset" is displayed on the LCD. Release the button after 3 seconds; 

the saved data values for trip distance "DST", total distance travelled "ODO", total trip time "TTM" and 

riding time "RTM" have now been deleted. The time settings are retained.

•  Press and hold the MODE and SET buttons at the same time until all display segments are shown on the 

LCD. Let go of the button immediately to delete all data.

•  Removing the battery from the bicycle computer also deletes all data.