GYS BT 551 Manual De Instrucciones página 9

Translation of the original instructions
TESTING THE INTERNAL RESISTANCE OF THE BATTERY
Press to select the «INTERNAL TEST» test. Confirm by pressing «ENTER».
1.
2. Press to select whether or not the battery is charged. Confirm by pressing «ENTER».
3. The screen displays the result:
x.xx V xx.xx mΩ
AND PRESS ENTER
4. Print if necessary.
TEST OF THE ALTERNATOR CHARGING SYSTEM
1. Press «ENTER» and the following screen appears :
2. Make sure all vehicle consumers are switched off (lights, air conditioning, radio etc.).
3. Start the engine. One of these three results appears :
Examples
Voltage below 9.6 V
Voltage above 9.6 V
No undulation
1. If the starting voltage is normal, press «ENTER» to continue the test.
2. Keep the engine running Check that all the accessories of the vehicle are switched off then validate.
3. One of the 3 results is displayed :
• Result of the start voltage test
Examples
High starting voltage when the test is
performed with the engine at idle
Normal starting voltage when the test
is performed with the engine at idle
Low starting voltage when the test is
performed with the engine at idle
4. Press «ENTER» to continue the test.
5. The tester asks «SWITCH CONSUMERS ON AND PRESS ENTER». Turn on the heater to maximum (heat), high and
rear headlights. Do not switch on cyclic loads such as air conditioning or windshield wipers.
6. Run the engine at 2500 rpm for 15 seconds.
7. Press «ENTER», the undulation of the charging system is visible. One of the two results is displayed :
9
BT 551
SYSTEM TEST
x.xx V
Screen display
START VOLTS The starting voltage is not correct. The battery must
x.xxx V LOW be replaced.
START VOLTS
x.xxx V NORMAL The starting voltage is normal.
START VOLTS The starting voltage is not detected.
NO UNDULATION Repeat the test.
Results displayed
ALT. VOLTS ADJUST
xx.xx V UP
ALT. VOLTS ADJUST
xx.xx V NORMAL
ALT. VOLTS ADJUST
xx.xx V LOW
Analysis
Analysis
Check that the connections are good. If every-
thing is properly connected, replace the regulator.
No problem detected. Normal operation of the
alternator.
The alternator does not provide enough power
to the battery. Check the belts, and ensure that
the alternator is running when the engine is
on. If the belts slip or are broken, replace them
and re-test. Check the connection between the
alternator and the battery. If the connection is
bad, clean or replace the cable and re-test. If
the alternator belts and connection are in good
condition, replace the alternator.
EN
9