To attach the equipment:

1.Attach the bike mount to the right or left handlebar using rubber grip, nut and bolt provided. Tighten until the bike mount is fixed into place, using the rubber grip for a firmer contact.

2.Attach the cadence sensor to a stationary point just behind the pedal, using the rubber grip for a firmer contact. There should be maximum 100cm (39 inches) between the sensor and the bike mount, and less than 30 degrees vertical angle.

3.Attach the cadence magnet to a pedal so that it is directly aligned with the sensor with less than 5mm (0.2 inches) between.

4.Attach the speed sensor to either leg of the front forks, using the rubber grip for a firmer contact. There should be maximum 100cm (39 inches) between the sensor and the bike mount, and less than 30 degrees vertical angle.

5.Attach the speed magnet on a spoke of the front wheel so that it less than 5mm (0.2 inches) from the sensor.

6.Check and adjust as necessary, then snip the ends off the clips so that no excess remains.

7.Fit the watch into the bike mount.

8.Press MODE on the watch to switch to BIKE Mode.

9.Press ST/SP/- to activate signal reception. The display shows “- -“, then changes to 0 once a successful signal is received.

10.Ride the bike a short distance to make sure signals are being sent to the watch successfully.

11.You are now ready to begin your trip.

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NOTE The watch can work with one or both sensors.

NOTE When the display shows a low battery icon (see ‘Battery’ section) replace the battery for the corresponding unit.

STEP 2: ENTER WHEEL CIRCUMFERENCE

You must set the bike’s wheel circumfer-

ence on the watch so it can accurately calculate your speed and distance. If you do not know the bike’s wheel circumfer- ence, you can check the manufacturer’s specifications or measure it by marking

the wheel where it touches the ground,

and then rotating the wheel once fully along the ground. Measure the difference between the two marks.

NOTE Most wheels have their specifications written on them.

To specify this information on the watch:

1.Press MODE to switch to the BIKE Mode.

2.Press and hold FUNC/SET for 2 seconds.

3.Press SELECT/+ or ST/SP/- to change the circumference (cm or inches, depending on the measurement unit you selected in CLOCK Mode).

4.Press FUNC/SET to save your changes.

NOTE You can also use the PC software for this operation (see PC section).

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Oregon Scientific RX109 user manual Enter Wheel Circumference