Timex 103-095004 Manuale Utente

• Do not subject the Digital Heart Rate Monitor to excessive force,

shock, dust, temperature, or humidity. Such treatment may 

result in malfunction, a shorter electronic life span, damaged 

batteries, or distorted parts.

• Do not tamper with the Digital Heart Rate Monitor’s internal

components. Doing so will terminate the Monitor’s warranty 

and may cause damage. 

• The Digital Heart Rate Monitor contains no user-serviceable

parts, except batteries.

If your heart rate readings become erratic or stop, you may need 

to replace the battery on your Digital Heart Rate Sensor. You can 

change the battery yourself without any special tools. 
This product uses a CR2032 lithium battery for the Digital Heart Rate 

Sensor. To change the battery:

BATTERY

OPEN

BATTERY

1.  Open the Sensor battery lid with a coin, turning the coin counter-

clockwise.

2.   Replace the battery with a new CR2032, 3V lithium battery with 

(+) facing you, taking care not to touch the two contacts and

discharge the battery.

3.   When you have finished inserting the battery, press the reset 

button (located in the lower left corner) with a toothpick or

straightened paper clip and close the lid with a coin -- screwing 

in a clockwise direction.

To test the new battery after you have inserted it: 
1.   Move away from any possible sources of electrical or radio  

interference.

2.   Wet the Digital Heart Rate Sensor pads and securely fasten the 

chest strap below your sternum. 

3. While wearing the watch, press the HEART RATE button. A set of

three dashes (- - -) and the flashing heart rate icon will appear on

the display.

4.  If you do not see a flashing heart icon on your watch, reinstall the 

sensor battery.

NoTE: It is not necessary for a heart rate value to appear on the 

display during this test.