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COMPUTER DISPLAY

ODO

ODO

ODO

TM

TM

dZ2L Wired Cycle Computer 

Owner's Manual

Problem

No Speedometer 

reading

Slow display response

No Trip Distance 

reading

Display shows 

irregular figures 

or blank screen

Solution

Temperature outside out 

of operating limits

(32-125 ºF or 0-55 ºC)

Re-install computer battery 

and verify that the 

computer battery is good.

Improper magnet/transmitter 

alignment. Check magnet/

tramitter alignment. 

Improper magnet/transmitter 

alignment. Check magnet/

tramitter alignment. 

Trouble Shooting

Filzer

Made in China

Visit www.filzer.com for more great products.

                                               Art No.: K-04-T-P3-GB-FILZER(dZ2L)

MOUNTING BRACKET INSTALLATION

Attach the mounting bracket to the right side of the handlebar 

with the LARGE cable ties (Figure 3a and 3b). Make sure the 

mounting bracket is clamped tightly and will not slip on the 

handlebar. Slide the computer onto the mounting bracket until 

it snaps firmly into position.  Press the release button to 

remove the computer (Figure 3c).

rubber

shim

Figure 3a

Figure 3b

Figure 3c

Press to

release

BATTERY INSTALLATION

Computer - (Note: Battery is pre-installed) Remove the 

battery cover from the bottom of the computer using a small 

coin. Install the 1.5V battery with positive (+) pole facing the 

cover (Figure 1a). If the LCD shows irregular figures, take out 

the battery and install again. This will clear and restart the 

computer's microprocessor.

Fig. 1a

Computer battery

(1.5V/186/LR43/ 

L1142)

FUNCTIONS

mounting

bracket

magnet

computer battery

(1.5V/186/LR43/ L1142)

cable ties**

PARTS

WHEEL SIZE (WS):

 Before you 

program your computer you need to 

determine your Wheel Size (WS). WS 

is the circumference of the front 

wheel in mm.  This value is entered 

into the computer in order to calculate 

speed and distance.
While charts provide a quick and easy 

way to get WS, there are no standard 

wheel sizes in the cycling world - i.e. 

the circumference (or Wheel Size = 

WS) of a 700x23 tire will differ from 

one brand of tire to another - so for 

accurate speed and distance values 

on your computer you need to 

measure your wheel circumference.
To obtain WS:

Method 1

: Fast (and not so accurate) 

method - use chart provided.

Method 2

: Most accurate method:

a) See Figure 8.
b) Inflate your tires to their proper 

pressure. 
c) Put a mark on your front wheel on the outside 

circumference. 
d) Put a mark on the floor. 
e) Put the mark on the wheel on the mark on the floor. 
f) Rotate the wheel one full revolution until the mark on the 

wheel is on the floor again. Mark this location.
g) Measure the distance between the marks on the floor in 

mm. This is the Wheel Size (WS) (i.e. your wheel 

circumference in mm).
h) Write this number down. The value should be between 

1800 and 2200 mm for standard size tires.  The unit can 

accommodate WS values between 100 and 5999 mm.

Fig.8

WS=distance in mm

for one wheel revolution

WS

2

x

x

1

d

W heel Diameter d

WS

26 x 1.0

1913

26 x 1.25

1953

26 x 1.4

2005

26 x 1.5

2010

26 x 1.75

2023

26 x 1.95

2050

26 x 2.0

2055

26 x 2.1

2068

26 x 2.3

2170

700 x 18

2070

700 x 20

2086

700 x 23

2096

700 x 25

2105

700 x 28

2136

700 x 30

2170

27 x 1"

2145

27 x 1 1/8"

2155

27 x 1 1/4"

2161

HOW TO MEASURE WHEEL SIZE

SETUP/RESET: 

In SETUP mode you can set WHEEL SIZE 

(WS), and KM/MILE.

 

Press and hold the LEFT and RIGHT 

buttons for 4 seconds to access initial setup mode. The digits 

on the bottom row will flash - this is the WHEEL SIZE (WS) 

setup. Note - all data will be lost.

WHEEL SIZE (WS): 

Press the RIGHT button to adjust the 

value of the first digit of WS. Once you have entered the 

correct value press the LEFT button to advance to the next 

digit. Repeat for all four digits. Press the LEFT button to 

confirm and advance to KM/MILE setup.

KM/MILE SELECTION (12/24): 

Km/Miles units for distance 

and speed will flash.  Press the RIGHT button to toggle 

between kilometre (KM) and miles (M). Press the LEFT button 

to confirm and exit setup.

ADJUSTING WHEEL SIZE (WS) and KM/M AFTER SETUP:  

If you need to change WS or change KM/M after setup see 

above SETUP/RESET section above.

SETUP

Congratulations on your purchase of the dZ2L cycle 

computer by FILZER. This is an easy to use cycle 

computer.

There are 3 main screens. Press the RIGHT button to toggle 

between the three display screens.
Screen 1 displays Current Speed, Odometer (ODO), Speed 

Comparator (+ or -) and Speed Tendency.

Screen 2 displays Current Speed, Tripometer (DST), Speed 

Comparator (+ or -) and Speed Tendency. 

Screen 3 displays Current Speed, Auto Trip Timer (TM), 

Speed Comparator (+ or -) and Speed Tendency.

SPEEDOMETER

Instantaneous Speed is displayed on the 

top row. The range of measurement is 

from 0 to 99 KM/hr (0 to 99 M/hr) and 

accuracy is + /-0.5 KM/hr (M/hr).

TRIPOMETER (DST)

Press the right button to scroll through 

screens until DST is displayed on the left 

side of the display. The trip distance 

(DST) value is displayed on the bottom 

row. Tripometer is activated automatically 

with speedometer input. To reset DST to 

zero go to the DST Screen and press and 

hold the LEFT button for 2 seconds. Note: 

Trip Timer (TM) will also be reset to zero.

TRIP TIMER (TM)

Press the right button to scroll through 

screens until TM is displayed on the left 

side of the display. The Trip Timer (TM) 

value is displayed on the bottom row. Trip 

Timer is activated automatically with 

speedometer input (when the front wheel 

is turning). It records only the time spent 

actually riding. To reset TM to zero go to 

the DST Screen and press and hold the 

LEFT button for 2 seconds.

ODOMETER (ODO)

Press the right button to scroll through 

screens until ODO is displayed on the left 

side of the display. The total distance 

traveled (ODO) value is displayed on the 

bottom row. To reset ODO to zero, press 

and hold LEFT and RIGHT buttons for 5 

seconds or remove the battery. Note all 

data will also be reset to zero and you will 

enter setup mode.

SPEED COMPARATOR: 

A (+) or (-) sign appears on the top 

right hand corner of the display. A (+) indicates you are 

traveling faster than your average speed. A (-) indicates you 

are riding slower than your average speed.

SPEED TENDENCY

 (Acceleration & Deceleration): A cyclist 

icon appears on the top left hand side of the display. The 

wheels turn forward to indicate acceleration, and turn 

backwards to indicate deceleration.

AUTO START/STOP: 

To prolong battery life, the computer will 

automatically switch off if the unit is left unused for more than 5 

or 6 minutes. Display will reappear with a press on either 

button or input from the front wheel.

COMPUTER FUNCTIONS

INTRODUCTION

Speedometer (0-99.9 Km/hr or M/hr)

Tripmeter (DST) (Up to 999.99 Km or M)

Odometer (ODO) (Up to 9999.99 Km or M)

Auto trip timer (TM) (59:59:59)

Speed Comparator (+ or -)

Speed Tendency

Figure 2c

Figure 2b

Figure 2d

Figure 2e

flat

spoke

normal

spoke

2mm max

computer

flat

spoke

round

spoke

Figure 2f

1

3

2

2

PARTS INSTALLATION LOCATION

Area     - Mounting bracket (handlebar)

Area     - Speed sensor (right fork)

Area     - Speed Magnet (front wheel spoke)

Figure 2a

1

2

3

a) Install the mounting bracket as per page 5
b) See Figure 2a for routing of sensors wire.
c) Make sure that there is enough wire clearance so the 

handlebars can rotate fully in both directions without pulling at 

the sensor wire.
d) Without using LARGE cable ties - position the sensor on 

the inside face of the right fork and the magnet on a wheel 

spoke. Position the sensor and magnet in such a way so that 

the magnet passes over the circle arrow on the sensor as 

shown in Figures 2c, 2e and 2f.
e) Once you have determined the approximate position of the 

sensor and magnet - loosely put the LARGE cable ties on the 

sensor and attach the magnet to the correct spoke. See 

Figures 2d and 2e on how to attach the spoke magnet. The 

magnet should be maximum 2mm from the sensor. 

f) Test out the positioning of the sensor and magnet by 

rotating the front wheel to see if the computer registers a 

speed value. If no value is registered reposition the sensor 

and magnet again. Make sure the magnet passes over circle 

arrow on the speed sensor as shown in Figure 2f. Once you 

have positioned the magnet and sensor properly, tighten up 

the sensor cable ties and ensure the magnet is securely 

tightened.
g) Secure the rest of the wire securely to the frame of your 

bicycle with the remaining SMALL cable ties. Make sure that 

there are no dangling wires.

sensor

**LARGE cable ties

for computer mount

and sensor

**SMALL cable

ties for wire

**LARGE cable ties

for sensor

**SMALL cable

ties for wire

**LARGE cable ties

for computer mount

**LARGE cable ties

for computer mount

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