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試験装置 Major tech MT245のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Major tech MT245 20 ページ。 Car battery tester

Charging test results:

1. Charging voltage: normal

The charging system shows that the generator output is normal and no

problem is detected.

2. Charging voltage: low

The charging voltage of the charging system is low.

Check whether the generator drive belt slips or deviates. Check whether

the connection between the generator and the battery is normal. If the

drive belt and connections are in good condition, troubleshoot the

generator according to the manufacturer's recommendations.

3. Charging voltage: high

The generator output voltage is high.

Since most automotive generators use internal regulators, the generator

assembly must be replaced (some older cars use an external regulator

and then replace the regulator directly.) The maximum normal high

voltage of the voltage regulator is 14.7V ±0.5V. If the charging voltage

is too high, the battery will be overcharged. As a result, the battery life

will be shortened and failure will occur.

4. No voltage output:

No generator voltage output detected. Check whether the generator

connecting cable and belt are normal.

5. Diode test:

By testing the charging current ripple, the tester will know whether the

diode is normal. When the ripple voltage is too high, at least one diode

is damaged. Check and replace the diode.

So far, all tests have been completed.

3.2. Waveform Monitoring

From the startup screen press EXIT button to enter Main Menu. Press the

UP/DOWN button to select the [Waveform] function and press ENTER, the

screen will display the interface as shown below