Berner L1 - Alternator Test Procedure; Connecting the Tester and Initial Display; Test Execution and Result Interpretation

8
ALTERNATOR TEST
1 Connect the black clip to the neg. pole , the red clip to the pos. pole
2 The following message will be displayed on screen:
3
After a few seconds, the battery voltage without load will be
displayed on screen.
4 Press
5 Select test: Alternator
6 Press
7
Select the battery temperature
(Higher than 0°C or Lower than 0°C)
8 Press
9 Start the engine.
10 Press
11
Switch on a few of the electrically operated car equipment (rear
window heater, head lights). Switch off discontinuously used
electrically operated car equipment (air conditioner).
12 Press
13 After a few seconds, the result will appear on screen.
Typical Battery Recharge Waveform
12.4
12.6
12.8
13
13.2
13.4
13.6
1 11
Average battery
charging current
Peak/Peak current variation
shown in mV
Alternator status: - GOOD
-
REPLACE
Average battery
charging current
Variation