4403000000_20140107
684146 Halfords ESS 10 Function Computer
POWER AUTO ON/OFF
To preserve battery, this computer will automatically switch off when it
has not been used for about 10 minutes. The power will be turned on
automatically by riding the bicycle or by pressing the button.
MODE BUTTON
Quickly press this button to move in a loop sequence from one basic
function screen to another. (
Fig. 2
)
ALL CLEAR OPERATIONS (Initiate the Computer)
Press the ALL CLEAR (AC)
key to initiate the computer or use ALL
CLEAR if any irregular data appears. It will clear all stored data.
RESET OPERATION
1. Hold down the “MODE
” button till the LCD digit is blanked, then
release it. The computer will RESET the DST, TM, AVG, MAX.
2. It cannot reset , TTM and ODO data.
RECALIBRATIONS (Fig. 3)
1. Change the LCD display to ODO screen, hold down the “MODE
”
button till (about 6 seconds) it jumps into the calibrating screen.
2. Refer to the main unit setup process to adjust the circumference.
3. Hold down the “MODE
” button till (about 6 seconds) it jumps out
the recalibration mode to store the desired data and complete
recalibrations.
12HR CLOCK SETTING (Fig. 4)
1. Change the LCD display to “ ” screen.
2. Press the “MODE
” button till (about 6 seconds) it jumps into the
clock adjusting screen to set the clock.
3. A quick press of the “MODE
” button advances the flickering digit by 1.
4. To change the flickering digit, hold down the “MODE
” button till
the flickering digit moves to the next digit.
5. Hold down the “MODE
” button till (about 6 seconds) it jumps out
the setting to store the desired data and complete clock setting.
BATTERY CHANGE
1. When the brightness of the LCD display is dim, it means that the
battery is nearly exhausted.
2. Replace with a new LR44 (Cross reference type A76, AG13 or V13GA)
battery in the compartment on the back of the computer with the
positive (+) pole toward the battery cap.
operation as long as the bicycle is being ridden.
: 12HR Clock
1H00M00S-12H59M59S, 1 Second, +/- 0.05%
It displays the current time in 12HR clock.
TM: Riding Time
0H00M00S-19H59M59S, 1 Second, +/- 0.05%
The TM totals the riding time from the last RESET operation.
AVG: Average Speed
0.0–199.9KM/h (120.0 M/h), 0.1KM/h (M/h), +/- 0.1%
1. It is calculated from the DST divided by the TM; the average data
counted is from the last RESET to current points.
2. It displays an "Err" symbol when either the TM is over 100 hours or
the DST is over 1,000 km (or miles). Reset the unit in order to restart.
MAX: Maximum Speed
0.0–199.9KM/h (120.0 M/h), 0.1KM/h (M/h), +/- 1%
It shows the highest speed from the last RESET operation.
TTM: Total Riding Time
0H00M–1999H59M, 1 Minute, +/- 0.05%
The TTM totals the riding time from the last ALL CLEAR operation.
ODO: Odometer
0.0–19999.9Km (Miles), 0.1Km (Mile), +/- 0.1%
The ODO accumulates the total distance as long as the bike is moving.
The ODO data can be cleared by the ALL CLEAR operation only.
: SCAN
1. Auto-Scanning Display Mode
Press the MODE
button till the “ ” symbol is displayed. The
computer will change the DST, , TM, AVG, MAX, TTM and ODO
display modes in a loop sequence automatically every 6 seconds.
2. Fixed Display Mode
Press the MODE
button to turn off the “ ” symbol and select a
desired display mode; the computer will stop the auto-scanning
display operation and the display mode is set.
/ : Speed Pacer
It flashes the “ ” speed pacer arrow while the current speed is higher
than the average speed and the down arrow “ ” flickers conversely.
16 x 17.5 x 2
20 x1.75 x 2
24 x13 /8A
24 x1.75 x 2
26 x1
26 x 1.5
26 x1.6
26 x 1.75 x 2
26 x 1.9
1217
1590
1948
1907
1973
2026
2051
2070
2089
47 - 305
47 - 406
37 - 540
47 - 507
23 - 571
40 - 559
44 - 559
47 - 559
50 - 559
54 - 559
57 - 559
37 - 590
37 - 584
20 - 571
32 - 630
28 - 630
40 - 622
40 - 622
26 x 2.00
26 x 2.215
26 x 13/8
26 x13/8 x 11/2
26 x 3/4
27 x 11/4
27 x 11/4 Fifty
28 x 1.5
28 x 1.75
2114
2133
2105
2086
1954
2199
2174
2224
2268
40 - 635
37 - 622
18 - 622
20 - 622
23 - 622
25 - 622
28 - 622
32 - 622
37 - 622
40 - 622
28 x 11/2
28 x 11/8 x 15/8
700 x18c
700 x 20c
700 x 23c
700 x 25c
700 x 28c
700 x 32c
700 x 35c
700 x 40c
2265
2205
2102
2114
2133
2146
2149
2174
2205
2224
WHEEL SIZE
Setting
Value
WHEEL SIZE
Setting
Value
WHEEL SIZE
Setting
Value
WHEEL SIZE CHART
Setting Value
= mm x 3.14
= Inch x 25.4 (mm) x 3.14
mm
Inch
RECALIBRTIONS
Fig.2
Fig.3
Fig.4
Fig.5
AC
calibration
Complete
Setting
TOTAL 6 SEC
6s
4s
2s
clock
setting
CLOCK SETTING
Complete
Setting
TOTAL 6 SEC
2s
4s
6s
PROBLEM CHECK ITEMS SOLUTION
DST
MAX
ODO
TTM
ODO/ SCAN
TM
CLK
AVG
10 function
: SPD, DST, ODO, CLK, AVG, MAX, TM, TTM, SCAN, SPEED PACER.
BATTERY
CHANGE
1.5V
Battery
(LR44 Typical)
LCD
SEGMENTS
AUTO TEST
Calbration (unit selection & circumference setting)
6s
End setting
2s
2s
0~3
+1
Main unit setup
Fig.1
Current
Speed
Functions
Symbol
Speed Pacer
WHEEL CIRCUMFERENCE
1. Roll the wheel until the valve stem at its lowest point close to the
ground, then mark this first point on the ground.
(Fig. 5)
2. Get on the bike and have a helper push you until the valve stem
returns to its lowest point. Mark the second point on the ground.
(Sitting on the bike achieves a more accurate reading since the weight
of the rider slightly changes the wheel circumference).
3. Measure the distance between the marks in milimeters. Enter this
value to set the wheel circumference.
Option: Get a suitable circumference value from the table.
(Fig. 6)
4. Adjust the wheel circumference as the data setting process.
MODE
PRECAUTIONS
1. This computer can be used in the rain but should not be used under
water.
2. Don’t leave the main unit exposed to direct sunlight when not riding the
bike.
3. Don’t disassemble the main unit or it’s accessories.
4. Check relative position and gap of Speed Sensor and magnet periodically.
5. Clean the contacts of the bracket and the bottom of the main unit periodically.
6. Don’t use thinner, alcohol or benzine to clean the main unit or its
accessories when they become dirty.
7. Remember to pay attention to the road while riding.
MAIN UNIT SETUP (Fig.1)
English
1. Be sure to press the All Clear (AC) key
to clear all stored data and
initiate the computer before using it or when replacing batteryotherwise
the unit may malfunction.
2. The LCD segments will be tested automatically after the All Clear key is
pressed.
3. Press the “MODE” button to stop the LCD test, then the flicking “KM/h”
and “c2155” will be displayed.
CALIBRATION
1. UNIT SELECTION
1). Press the “MODE
” button to select “KM/h” or “M/h”(Mile/h).
2). Hold the “MODE
” button till the flickering digit is changed to the
digit “2” of the c2155 to recognize either KM/h or M/h as desired.
2. CIRCUMFERENCE DATA SETTING
1). The default is set at 2155mm. Measure the value for your wheel
(
Fig. 5
) or refer to the quick table provided in the manual for your
bicycle. (
Fig. 6
)
2). A quick press of the “MODE
” button advances the flickering digit
by 1.
3). To change the flickering digit, hold down the “MODE
” button till the
flickering digit moves to the next digit.
FUNCTIONS (Fig. 2)
: Current Speed
0.0–199.9KM/h (120.0 M/h), 0.1KM/h (M/h), +/- 1%
The current speed is always displayed on the 4 digits set when riding.
DST: Trip Distance
0.00–999.99Km (Miles), 0.01Km (Mile), +/- 0.01%
The DST function accumulates the distance data from the last RESET
BUTTON AND OPERATIONS
AUTOMATIC START/STOP
1. The computer will automatically begin counting , ODO, DST,
MAX, TTM, TM and AVG data upon riding and stop counting data
when riding is stopped.
2. The flickering symbol “ ” indicates that the computer is at START status.
TROUBLE SHOOTING
Check the following before taking unit in for repairs.
1. Is the battery dead?
2. Is there incorrect battery
installation?
1. Is it at the recalibrating
or 12HR clock setting
screen?
2. Are the contacts between
the main unit and the
bracket poor?
3. Are the relative positions
and gap of Speed Sensor
and magnet correct?
4. Is the wire broken?
5. Is the circumference
correct?
Did you leave main unit
under direct sunlight when
not riding the bike for a
long time?
Is the temperature below
0°C (32°F)?
1. Replace the battery.
2. Be sure that the positive pole
of the battery is facing the
battery cap.
1. Refer to the adjusting
procedure and complete the
adjustment.
2. Wipe contacts clean.
3. Refer to Installation(Fig.C1)
readjust data correctly.
4. Repair or replace wire.
5. Refer to "CALIBRATION"
and enter correct value.
Refer to the "MAIN UNIT SETUP"
and initiate the computer again.
Place main unit in the shade to
return to normal state.No
adverse effect on data.
Unit will return to normal state
when the temperature rises.
No display
No current
Speed or
incorrect
data
Irregular
display
LCD is
black
Display is
slow
Fig.6
