Ascent 4LW Manual

Wireless cyclocomputer

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4LW WIRELESS
CYCLOCOMPUTER
INTRODUCTION
Congratulations on your purchase of the Ascent
Wireless cycle computer. Packed with all the features
that a professional rider needs to keep track of a
workout, the 4LW Wireless is a perfect training tool
for any cyclist. The added convenience of wireless
transmission makes installation simple.
BATTERY INSTALLATION
To help get you started quickly, the 4LW receiver and
transmitter batteries have been installed at the factory.
Replacement batteries are available at most camera and
electronic shops. Under normal usage batteries should
last approximately one year. Note: Most problems that
occur with cyclocomputers are caused by dead or weak
batteries. If you are having problems with your comput-
er's operation, check and replace the batteries first.
COMPUTER HEAD/RECEIVER
The Ascent
CR2032 button cell battery. See Figure 1.
STEP 1
To replace the battery, remove the battery cap from
the bottom of the computer using a small coin.
Remove the old battery and dispose of properly.
STEP 2
Install the battery in the battery compartment with the
positive (+) pole facing the battery cap. Be careful when
installing the battery not to damage the battery contact.
STEP 3
Reinstall the battery cap and tighten firmly, making
4LW computer head uses a common 3V
®
®
4LW
®

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Summary of Contents for Ascent 4LW

  • Page 1 The added convenience of wireless transmission makes installation simple. BATTERY INSTALLATION To help get you started quickly, the 4LW receiver and transmitter batteries have been installed at the factory. Replacement batteries are available at most camera and electronic shops.
  • Page 2: Button Function

    TRANSMITTER The 4LW transmitter uses a 12V A23 battery. STEP 1 To replace the battery, remove the battery cap from the top of the transmitter case using a small coin.
  • Page 3: Computer Functions

    COMPUTER FUNCTIONS SPEEDOMETER (SPD) Displays instantaneous speed up to 99.9 M/hr or KM/hr. Accurate to 0.1M/hr or KM/hr. Always dis- played on top line. DISPLAY SCREEN 1 AVERAGE SPEED (AVS) Displays average speed up to 99.9 M/hr or KM/hr. Accurate to 0.1 M/hr or KM/hr.
  • Page 4: Programming The Computer

    The wheels on the bicycle icon roll forward to indicate acceleration and backward to indicate deceleration. AUTO SLEEP To prolong battery life, the 4LW will automatically enter “sleep” mode after 5 minutes of non-use. The comput- er will automatically restart when it receives input from the speed sensor, or when any button is pressed.
  • Page 5 WHEEL SIZE CALCULATION If your specific tire size is not listed in the chart, fol- low these steps to measure wheel circumference. See Figure 2. STEP 1 Stand your bicycle upright. With your tire inflated to its proper pressure, rotate your front wheel so that the valve is located at the bottom (6 o’clock position).
  • Page 6: Selecting Miles Or Kilometers

    Press the LEFT button to confirm the wheel size set- ting and advance to the speed scale selection screen. SELECTING MILES OR KILOMETERS The Ascent 4LW is capable of displaying speed and ® distance information in either miles or kilometers. STEP 1...
  • Page 7: Setting The Odometer

    (including CLK, ODO and wheel size settings), press and hold both buttons (LEFT and RIGHT) for three seconds. INSTALLATION Since the 4LW is wireless, installation is simple and straight forward. Begin by attaching the computer mounting bracket to the handlebar.
  • Page 8 BRACKET AND COMPUTER INSTALLATION STEP 1 Select the proper size mounting ring for your handlebar. Two mounting bracket rings and three rubber shims are included to accommodate a wide range of handlebar diameters. The smaller ring (already fitted to the bracket) fits standard 25.4mm - 26.4mm FIGURE 3 diameter handlebars.
  • Page 9 (so that you can slide it around) to the leading edge of the left fork blade. The 4LW wireless transmission range is 24" (60cm). The transmitter must be mounted no further than 24" from the receiver (computer head) in order for the receiver to pick up the signal.
  • Page 10 STEP 2 Attach the wheel magnet loosely to one of the spokes on the same side of the wheel as the transmitter. Adjust the position of the magnet and transmitter by sliding both pieces up or down until the magnet pass- es the alignment mark on the transmitter with a clear- ance of 1-3mm (1mm is about the thickness of a penny).

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