User manual
37
Switch the safety timer on/off and set the duration
If charging starts, the internal safety timer starts as well.
If the charger cannot detect whether the battery is fully charged for whatever
reason (e.g. with delta-U detection), the charge process is terminated auto-
matically after a set time if the safety timer is on. This protects the battery
from overloading.
The safety timer can be switched on ("ON") or off ("OFF"); the time for the safety timer can also be changed.
Do not set the time too short, since the rechargeable battery cannot be fully charged then because the
safety timer will cancel charging.
Some calculation examples for the duration:
Battery capacity Charging current Timer time
2000 mAh 2.0 A 2000 / 2.0 = 1000 / 11.9 = 84 minutes
3300 mAh 3.0 A 3300 / 3.0 = 1100 / 11.9 = 92 minutes
1000 mAh 1.2 A 1000 / 1.2 = 833 / 11.9 = 70 minutes
The factor 11.9 is used to permit charging 140% of the rechargeable battery capacity (the rechargeable
battery is guaranteed to be fully charged then), before the safety timer trips.
Switching the key conrmation sounds/warning sounds on/off
With the option "Key beep", conrmation beep for each push of a button is
switched on ("ON") or off ("OFF").
The function "Buzzer" switches the signal sound for various functions/warning
messages on ("ON") or off ("OFF").
Setting the backlighting brightness
In this function, you can set the brightness of the backlighting.
Key beep ON
Buzzer ON
Back-light
80%
Safety timer
ON 240min