Avocet CYCLOMETER 15 - User Manual

CYCLOMETER 15
CYCLOMETER 25
RESET. To reset hold down the left button then press the right button. Trip Distance, Average
Speed, Ride Time, and Maximum Speed all reset together. You can reset from any of these four
functions. When Ride Time reaches 10 hours, Trip Distance, Average Speed, and Ride Timer
reset automatically. Reset before starting each ride to avoid automatic reset.
To clear the Stopwatch, hold down the left button and press the right button when the stop-
watch is displayed. Clearing the stopwatch does not reset any other functions.
Trip Distance, Average Speed, Ride Time, and Maximum Speed reset together
RESET by holding left button
then pressing right button
RESET
PRESSING THE RIGHT BUTTON
Displays Speed with the other main functions: Total Distance, Trip
Distance, Average Speed, Ride Timer, Maximum Speed, and Stopwatch
Changes calibration number and clock time
HOLDING THE RIGHT BUTTON 2 SECONDS
Selects the Clock in any function (Cyclometer 25 only)
HOLDING THE LEFT BUTTON THEN
PRESSING THE RIGHT BUTTON
Resets Trip Distance, Average Speed, Ride Time, and Maximum Speed
(all together) when any of these functions is displayed
Clears Stopwatch when Stopwatch is displayed (Cyclometer 25 only)
Reaches Clock set when Clock is displayed (Cyclometer 25 only)
PRESSING THE LEFT BUTTON
Starts and stops the Stopwatch (Cyclometer 25 only)
Moves from one number to the next in calibration and clock set
HOLDING THE LEFT BUTTON
Reaches miles/kilometers select when Total Distance (D) is displayed
(Cyclometer 25 only)
Reaches calibration when Trip Distance (d) is displayed
BUTTONS
MODELS
AVOCET
CYCLOMETER 15
Functions
• Speed
• Total Distance
• Trip Distance
• Average Speed
• Ride Time
• Maximum Speed
AVOCET
CYCLOMETER 25
Functions
• Speed
• Total Distance
• Trip Distance
• Average Speed
• Ride Time
• Maximum Speed
• Stopwatch
• Clock

Summary

Button Operations

Right Button Functions

Details on pressing and holding the right button for mode selection and adjustments.

Left Button Functions

Explains pressing and holding the left button for starting, stopping, and selecting digits.

Reset Procedures

Performing a System Reset

Instructions on how to reset trip data, average speed, ride time, and maximum speed.

Calibration and Settings

Units and Calibration Methods

How to select miles/kilometers and calibrate using tire size or precise measurement.

Clock Setting and Power Saver

All Clear Data Erase

Battery and Troubleshooting

Battery Replacement

Common Troubleshooting Issues

Solutions for problems like incorrect readings, no display, or dim display.

Installation Guide

Mounting Receiver and Transmitter

Bracket and Wire Installation

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The Avocet Cyclometer is a bicycle computer designed to track various riding metrics, available in two models: the Cyclometer 15 and the Cyclometer 25. Both models offer core functionalities, while the Cyclometer 25 includes additional features like a stopwatch and clock.

Function Description

Speed: Both Cyclometer 15 and 25 display your current speed. The speed resolution varies depending on your speed: 0.1 mph up to 19.9 mph, 0.5 mph from 20 to 39.5 mph, and 1.0 mph above 40 mph. The "mi" indicator flashes when the cyclometer is actively receiving speed and distance data from the wheel sensor.

Total Distance (D): This function accumulates the total distance you have ridden, up to 6,209.9 miles. Once it reaches 6,210 miles, it automatically clears to 0 and resumes accumulation. To track yearly mileage, it's recommended to clear this function before your first ride of a new year.

Trip Distance (d): This displays the distance ridden since the last reset, up to 620.99 miles. At 621.00 miles, it automatically resets to 0 and resumes accumulation. Trip Distance also resets automatically when the Ride Timer reaches 10 hours. It's advisable to reset this function at the start of each ride to prevent automatic resets during your ride.

Average Speed (AV): This function displays your average speed since the last reset, calculated for up to 10 hours. For the Cyclometer 15, an 'E' is displayed instead of Average Speed after 10 hours. The Cyclometer 25 automatically resets and resumes averaging after 10 hours. The time over which the average has been calculated is shown in the Ride Timer.

Maximum Speed (MX): This displays the maximum speed reached since the last reset, up to 75.0 mph.

Ride Time (ST): This function displays the total time your bicycle's wheels have been turning, up to 9 hours and 59 minutes. It resets automatically at 10 hours. Trip Distance and Average Speed also reset at 10 hours. Time when the bicycle is stopped is not accumulated. Average speed is calculated by dividing the trip distance by the ride time.

Stopwatch (ST) (Cyclometer 25 only): When the Stopwatch is displayed, 'ST' blinks. You can start and stop the stopwatch using the left button. It displays elapsed times in hundredths of a second up to 9 minutes 59.99 seconds, then in hours, minutes, and seconds up to 9:59:59. At 10 hours, it rolls over to 0 and continues timing. The stopwatch can be started, stopped, and cleared without affecting the average speed of the entire ride.

Clock (Cyclometer 25 only): The clock displays 24-hour time in hours and minutes. You can access the clock from any function by holding the right button down for 2 seconds. After 10 minutes of no wheel pulses or button presses, the Cyclometer 25 goes to sleep and displays only the clock.

Usage Features

Button Operations:

• Pressing the Right Button: Cycles through Speed, Total Distance, Trip Distance, Average Speed, Ride Timer, Maximum Speed, and Stopwatch. It also changes calibration numbers and clock time during setup.
• Holding the Right Button 2 Seconds: Selects the Clock in any function (Cyclometer 25 only).
• Holding the Left Button then Pressing the Right Button (RESET): Resets Trip Distance, Average Speed, Ride Time, and Maximum Speed simultaneously when any of these functions are displayed. This action also clears the Stopwatch when it's displayed (Cyclometer 25 only) and reaches the Clock set when the Clock is displayed (Cyclometer 25 only). It's recommended to reset before each ride to avoid automatic resets.
• Pressing the Left Button: Starts and stops the Stopwatch (Cyclometer 25 only). It also moves from one number to the next during calibration and clock setup.
• Holding the Left Button: Reaches miles/kilometers selection when Total Distance (D) is displayed (Cyclometer 25 only). It also reaches calibration when Trip Distance (d) is displayed.

Scan Mode (Cyclometer 15 only): To view each function for 5 seconds, hold the right button, then press the left button in any function except Total Distance. To exit scan mode, repeat the action.

Miles or Kilometers Selection:

• Cyclometer 15: Go to Total Distance (D), hold the left button for 12 seconds until the test pattern appears and all stored data is cleared. Four seconds after releasing, 'mi' or 'km' flashes. Press the right button to switch between miles and kilometers, then complete calibration.
• Cyclometer 25: Go to Total Distance (D), hold the left button for six seconds and release when 'mi' or 'km' flashes. Switch between units with the right button. Stored maximum and average speeds and distance data are automatically converted to the chosen units. Exit by pressing the left button.

Calibration: Calibration is crucial for accurate readings. You can find the calibration number that matches your tire size from a provided table or measure your tire's circumference precisely.

• Reaching Calibration: From the Trip Distance function (d), hold the left button.
  • Cyclometer 15: Hold until the calibration number 2155 shows in the lower display and its right digit blinks (8 seconds).
  • Cyclometer 25: Hold until 2155 shows in the lower display (4 seconds), release, then hold again for 4 seconds until the right digit blinks.
• Adjusting Calibration: Change the number with the right button. Press the left button to go to the next digit. After adjusting all digits, press the left button to exit. To check the calibration number, hold the left button in Trip Distance; after 4 seconds, the calibration will appear for 4 seconds after you release the button.
• Precise Calibration: Inflate tires to your usual riding pressure. Mark the ground under the valve stem at its lowest point. Get on the bicycle and have a helper push you in your normal riding position until the valve stem returns to its lowest point, ensuring the tire travels in a straight line. Mark below the stem again, then measure the distance in inches between the marks. Multiply your measurement by 25.4 to convert to millimeters for your calibration number.

Setting the Clock (Cyclometer 25 only): Hold the right button in any function to display the clock. Hold the left button then press the right button to reach clock adjust. The right digit will blink; change it with the right button. Press the left button to go to the next digit. You must confirm the left digit's correctness after exiting clock set. You cannot set the clock when the Cyclometer 25 is asleep with only the clock displayed.

Installation:

1. Receiver: Cut the clamp screw off the receiver bracket. Position the receiver on the right fork blade about 3" above the hub, parallel to a spoke. Insert and tighten the screw.
2. Transmitter: Remove the screw from the transmitter magnet and install it on one of the right-side spokes opposite the receiver. The magnet should line up over one of the marks on the receiver. Rotate the receiver until it is 1/8" to 3/16" from the transmitter magnet. Tighten the transmitter and receiver screws.
3. Receiver Wire: Attach the wire to the inside of the fork with cable ties, then wrap the wire around the front brake cable until the excess is used up. Attach the wire only to parts that rotate when the bicycle is steered (fork, handlebar stem, or front brake cable). Do not attach to the head tube.
4. Mount Bracket: Wrap the rubber shim around the handlebar near the stem. Remove the clamp screw and place the bracket on the handlebar over the shim. Slide the Cyclometer into the bracket until it snaps on. Spin the wheel and confirm a speed reading is displayed. If the display remains at zero, check that the receiver and transmitter magnet are aligned and 1/8" to 3/16" apart.

Maintenance Features

Automatic Power Saver: After 10 minutes of no button presses and no wheel movement, the display goes blank (Cyclometer 15) or displays only the clock (Cyclometer 25). Power consumption is reduced by 50%. The normal display returns when a button is pressed or the bicycle is moved.

All Clear: You can manually clear Total Distance by holding down the left button in the Total Distance (D) function until the test pattern appears (10 seconds). This erases all stored data and resets the calibration number to 2155 mm (Cyclometer 15). Calibration number is retained with all clear in Cyclometer 25.

Battery Installation: To remove the battery, pry up the cap on the back of the Cyclometer with a screwdriver. Install the new battery with its positive (+) side toward the cap, then press in the cap with your thumb. Removing the battery erases all stored data and resets the calibration number to 2155. After installation, the Cyclometer displays the test pattern briefly, then goes into miles/kilometers setup.

Troubleshooting:

• Speed and distance seem too high or too low: Check calibration number, confirm calibration by tire roll-out, and check that the receiver is parallel to the nearest spoke and spacing between receiver and transmitter.
• No speed or distance: Check transmitter/receiver alignment and spacing, contacts on the back of the Cyclometer and on the mount (clean with a pencil eraser if necessary), and check for broken wire.
• No Average Speed, Trip Distance, or Ride Time: Hold the right button then press the left button in Total Distance (D) to reset Auto Start-Stop.
• No display or display dim: Replace the battery.
• Incorrect data or unusual display: Perform a total reset by holding the left button in Total Distance (D) function until the test pattern appears. If the display is incorrect after a new battery is installed, remove the battery, then reinstall after 15 seconds.

Avocet CYCLOMETER 15 Specifications

General

Type	Wired
Display	LCD
Battery	CR2032
Mounting	Handlebar
Functions	Speed, Distance, Trip Distance, Clock
Speed	Current, Average, Maximum
Distance	Odometer, trip distance