BESA-12P User’s manual
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Page 23
7. Press key will show the results of the test (Figure 66):
8. If either minimum or maximum charging volts are not within the voltage
range limits then it will display one of the screen as below (Figures 67 & 68)
and it will prompt you to check the charging system for the fault.
Testing with load at 2,000 RPM
As more electrical accessories, such as lights, rear demister, heater, car
stereos, etc. were used; the electro-motive force decreases and this will allow
more amperage from the alternator to flow into the battery to compensate for
the added load. This test is to check the alternator
‟s behavior during loading.
9. Continue from the previous test (either Fig. 66, 67 or 68); proceed to the
next step by pressing key will enter to the display as follows.
(Fig.69)
Figure 69
Figure 66
Figure 67
Figure 68
Results: Good
At 3,000 rpm,
No load Test:
Average Charging Volts:
14.2V
Press [Enter] to continue
to Loading Test.
Results: Low charge
At 3,000 rpm,
No load Test:
>13.3V: Min 13.2V
Check for loose belt
and the alternator.
Results:High charge
At 3,000 rpm,
No load Test:
<15.0V: Max. 15.6V
Check alternator and
the regulator.
Loading Test
Switch ON all electrical
loads. Rev engine up to
2,000 rpm. Press
[Enter].Hold on to this
2,000 rpm for 10
seconds and release the
pedal.
