CARA MENGUKUR TEGANGAN LISTRIK AC & DC menggunakan AVO METER DIGITAL

Summary

This tutorial demonstrates how to use a digital multitester to measure electrical currents. It covers checking AC voltage from the PLN, ensuring correct polarity and voltage selection, and troubleshooting errors. The video also explains how to measure DC voltage for batteries and car batteries, with clear instructions on how to handle the device for accurate readings. The tutorial emphasizes the importance of proper settings, polarity, and safe usage, aiming to help beginners understand multitester functionality for electrical testing.

Takeaways

• 😀 Always use the correct setting (AC or DC) on your digital multitester before measuring voltage.
• 😀 When testing AC voltage, ensure the meter is set to 750V AC or higher for accurate readings.
• 😀 For household electrical sources (PLN), voltage readings should be around 220V, but can vary slightly.
• 😀 AC voltage does not require polarity checking; it can be tested in both directions.
• 😀 When testing DC voltage (e.g., batteries or car batteries), ensure you check polarity (positive and negative).
• 😀 A fully charged 3.7V battery will show a voltage above 3.7V, with the tested battery showing 4.33V as an example.
• 😀 Car batteries typically show a voltage between 12.8V and 13V when fully charged.
• 😀 Always set your multitester to a higher voltage range (e.g., 200V or 500V) when unsure of the expected value.
• 😀 For battery testing, polarity matters: positive to positive, negative to negative, or the reading will be incorrect.
• 😀 When measuring car battery voltage, ensure the correct DC setting is used (12V range), and avoid reversing the polarity.

Q & A

What is the main purpose of using a digital multitester in this tutorial?

The digital multitester is used to measure electrical current, specifically to check AC and DC voltage. This helps in ensuring that electrical devices or power sources are functioning correctly.

Why is the digital multitester preferred over the analog version?

The digital multitester is preferred because it is simpler to read and more accurate. Unlike analog multitesters, which use a needle to point to values, digital multitesters display the exact numerical value of the measurement.

What should you do before starting to measure AC voltage with the multitester?

Before measuring AC voltage, set the multitester to the AC voltage (VAC) setting and ensure it is configured to a range higher than the expected value (e.g., 220V or 500V).

What is the standard AC voltage for PLN in this tutorial?

The standard AC voltage for PLN (state electrical grid) is 220V. However, it can sometimes vary slightly above or below this value depending on the region.

Why is it important to use the correct probe polarity when testing DC voltage?

Using the correct probe polarity when testing DC voltage is essential because reversing the probes can lead to an error in the reading or potential damage to the multitester or the device being tested.

What does the multitester reading indicate when testing a 3.7V battery?

A reading of 3.7V on the multitester when testing a battery indicates that the battery is fully charged, as 3.7V is the standard voltage for a fully charged battery of that type.

How can you measure the voltage of a car battery using the multitester?

To measure a car battery, set the multitester to the DC voltage setting, select the appropriate range (e.g., 20V), and then connect the positive probe to the positive terminal and the negative probe to the negative terminal of the battery.

What is the standard voltage reading for a fully charged car battery?

The standard voltage for a fully charged car battery is approximately 12.8V. If the reading is lower, the battery might be undercharged or faulty.

What should you do if the multitester's reading appears incorrect or fluctuates?

If the reading appears incorrect or fluctuates, check the connection of the probes to ensure they are properly attached. Additionally, ensure that the correct voltage range is selected for the measurement.

What is a recommended practice when unsure about the voltage range to use on the multitester?

When unsure about the voltage range, start with a higher setting (e.g., 20V or 200V) on the multitester. If the reading is unclear or too high, reduce the range for better accuracy.