Heart Rate Monitor Safety and Servicing Note: This chest strap can contain latex components. In rare cases, allergic reactions can occur to this substance, in the form of – possibly relatively intensive – skin irritations and redness. Therefore, if you should even only notice slight redness, please discontinue using the chest strap immediately.
Heart Rate Monitor Safety and Servicing Rain, Bathing, Washing hands Shower Water sport Spray Swimming Yes, do not up to 98 feet immerse the water resistant watch in water! Make sure that you do not use the keys when the watch is wet. Water can only penetrate the housing and damage the movement through the keys.
Heart Rate Monitor Function Keys of the heart rate monitor Storage Store the heart rate monitor and chest strap in a cool and dry place. Once the battery has been removed, the heart rate monitor can be stored at 32 °F to 104 °F. Notes on operating instructions We have structured the operating instructions for this heart rate monitor in such a way that you can always find the information you require using the themed topics in...
Heart Rate Monitor Main functional modes Chest strap Connect the strap to the sensor. Set the elastic strap so that the sensor is securely next to the chest, below the chest muscles. In order to ensure good contact with the skin, you need to moisten the contacts of the sensor or use EEG gel (available in medical specialist shops).
Page 8
Heart Rate Monitor Main functional modes With the selection of Normal mode, several user-defined settings need to be carried out in the following order: • Language (English/German) • 12/24 hour display (12/24) • Set the time and date • Date of birth (year, month, day) •...
Heart Rate Monitor Main functional modes In Profi mode, there are five main function modes available, which are described in more detail in the following chapters: Time mode Heart rate mode Stopwatch mode Countdown mode Alarm mode Press the “MODE” key, in order to switch between the different modes. The individual modes are described in point 5.2 to point 5.6 Please note that all of the modes and functions described below are only available in Profi mode, as described in the information box at the beginning of...
Heart Rate Monitor Main functional modes • Press the “SEL” key in order to set the seconds to zero. Confirm with the “SET” key, the year will flash. • Set the year with the “SEL” key and confirm with the “SET” key. Set the month and date in the same way.
Page 11
Heart Rate Monitor Main functional modes When the chest strap is being worn, the current heart rate in the middle display segment is shown. Otherwise, “—“ is shown. The heart symbol flashes if the heart rate is being received by the chest strap. If no signal is received anymore, the heart symbol stops flashing and the last heart rate remains in the display.
Page 12
Heart Rate Monitor Main functional modes 5.3.2 Time within/above/below training zone In heart rate mode, press the “SEL” key until the time within/above/below the training zone (“IN”) is displayed in the upper segment. If you briefly press the “SET” key, you can select between the following views: •...
Page 13
Heart Rate Monitor Main functional modes 5.3.4 Training zones In heart rate mode, press the “SEL” key until the training zones (upper limit and lower limit) (“ZONE”) are displayed in the top segment. Upper limit Lower limit In Profi mode: Selection between training zone 1, 2, 3 or U Set the maximum heart rate In Normal mode: Only training zone 1 is available...
Page 14
Heart Rate Monitor Main functional modes Age: Zone 3 performance 80-95% Zone 2 Fitness 65-80% Zone 1 Health 50-65% Tip: For example, if you are aiming for increased fitness, set the upper limit of your training zone to 80% of your maximum heart rate and 65 % of your maximum heart rate as the lower limit (Zone 2).
Page 15
Heart Rate Monitor Main functional modes With the “SEL” key, select zone 1, 2, 3 or the user-defined training zone (U). Confirm the selection of training zone 1, 2 or 3 with the “MODE” key. The setting is completed. The upper and lower limits are calculated automatically. Upper limit Lower limit Training zone...
Page 16
Heart Rate Monitor Main functional modes Please note that with disruptions to the transmission of the heart frequency or with an irregular heart, under certain circumstances, it can occur that the LED indicator and the training zone alarm will temporarily stop, in order to avoid incorrect information.
Heart Rate Monitor Main functional modes 5.3.8 In heart rate mode, press the “SEL” key until the burned fat (“FETT” / “FAT”) is displayed in the top segment. As soon as the heart rate signal is received in heart rate mode, the estimated value of burned fat is displayed in grams.
Heart Rate Monitor Main functional modes Set time to zero Keep the “SET” key pressed during stopped or running time. Countdown mode Press the “MODE” key repeatedly until you are in the countdown mode (indicated by “TIMER” / “D-TMR”). Set countdown •...
Heart Rate Monitor Main functional modes Set alarm • Keep the “SET” key pressed for approx. 3 seconds, the hours will flash. Set the hours using the “SEL” key. Confirm your selection with the “SET” key, the minutes will flash. •...
Heart Rate Monitor Troubleshooting/FAQs Chest strap: Open the battery compartment lid using a coin. Insert a 3V battery type CR2032. Ensure that the positive terminal (+) is pointing upwards. Close the battery compartment. Ensure that the cover is closed securely, so that no moisture can penetrate the chest strap.
Page 22
Heart Rate Monitor Troubleshooting/FAQs What can the reason be for the calorie consumption/fat burning not being correct? Please check the entry of date of birth and weight. The calorie consumption measurement is only a computed approximation. The device cannot provide an exact calculation of calorie consumption.
Heart Rate Monitor Contact Data What can be the reason why the display of my heart rate monitor is no longer responding?! If the display is “frozen” or irregular symbols appear: Press and hold the “SEL” and “SET” key simultaneously for approx. 2 seconds. All display segments will briefly appear and you will reach the default settings again (see point 5 “Main functional modes”).
Need help?
Do you have a question about the AU4-PU-4A and is the answer not in the manual?
Questions and answers