How to measure standard frequency with a multimeter

Frequency measurement function on multimeter

Frequency is described as a wave, which plays an essential role in the telecommunications and media industry. The frequency can remain stable or vary depending on the circuit or device. For example, an AC motor operating at a frequency of 60Hz will increase its power if the frequency exceeds 60Hz, and conversely, operate more slowly if the frequency falls below this level.

Obviously, the change in frequency directly affects the speed of the motor, which shows the importance of frequency measurement. One of the simplest and most effective ways to determine frequency is to use a power meter, which helps you control and adjust the device accurately.

Some frequency measurement functions on the multimeter

A multimeter is an important tool for highly accurate measurements, but this can only be achieved when you choose the right device and understand its functions. In particular, when measuring frequency, there are a number of features that you need to master:

- Frequency counter: This function helps measure AC signal frequency, very useful when you need to troubleshoot problems in electrical and electronic devices.

- Min/Max recording mode: This mode allows you to record frequency measurements over a specific period of time, ensuring you can monitor fluctuations. This mode also aids in measuring voltage, resistance and current.

- Automatic mode: In high-end devices such as Pro'skit MT-1232, this mode automatically selects the frequency measurement range, helping to simplify the measurement process. However, in some cases when the voltage frequency is outside the measurement range, the device may not give the most accurate results.

How to measure frequency on a multimeter?

When you want to measure frequency with a multimeter, it is important to understand the two popular types of frequency meters today: multimeters with frequency buttons and multimeters without frequency buttons. Each type has its own measurement method, requiring you to master the corresponding usage. 

The multimeter has a frequency button that allows you to easily measure frequency directly by simply switching to frequency measurement mode. On the contrary, with a multimeter without a frequency button, you will need to use a different measurement method, which may be more complicated but still ensures accuracy if done properly.

For multimeters with frequency buttons

When measuring frequency with a multimeter with a frequency measurement button, the process is very simple, similar to when measuring current or resistance. Before starting, it is important to thoroughly test the device to ensure that both the meter and the device being measured are working properly. Below are the specific steps to measure frequency:

1. Turn the knob to HZ: On the multimeter body, turn the knob to frequency measurement mode (HZ).

2. Connect the lead: Connect the black lead to the COM jack and the red lead to the Volt jack.

3. Read results: Frequency measurement results will be displayed directly on the watch's screen.

With power meters with frequency measuring buttons, determining the frequency of devices and machines becomes much easier.

For multimeters there is no frequency button

For multimeters that do not have a frequency measurement button, you can still measure the frequency using an alternative procedure. Here are the steps:

1. Turn the dial to AC voltage (ACV) measurement mode: First, you turn the meter's dial to AC voltage measurement mode. If the voltage in the circuit cannot be determined, select the highest scale. Some modern watches have an Autorange mode, which automatically selects the appropriate measurement range.

2. Probe connection: Insert the black probe into the COM jack and the red probe into the Volt jack.

3. Connect the test circuit: Connect the probes to the circuit to be measured. Once completed, pull out the red probe first, then the black probe.

4. Read voltage results: Voltage measurement results will be displayed on the screen. While the meter is still connected to the circuit, select the HZ button to switch to frequency measurement mode.

5. Read the frequency results: The Hz symbol will appear on the screen, and you can read the frequency results right there.

Some popular Hz meters

Frequency measurement is one of the most popular measurement applications today, and using a multimeter is an effective solution to help you make quick and accurate measurements. Here is a suggestion for an Hz meter that you might consider:

1. Kyoritsu 1109S multimeter

Kyoritsu 1109S is an analog Hz meter model, widely used in industries such as electricity, manufacturing, and construction. This device not only provides diverse measurement functions, from measuring DC and AC voltage up to 1000V, measuring 250mA current, but also has the ability to measure current frequency. Besides, it also integrates other functions such as LI, LV, and hFE index measurement.

The highlight of Kyoritsu 1109S also lies in its impact resistance and fuse protection, helping to increase the durability and longevity of the device. With these features, the Kyoritsu 1109S is the ideal choice for those who need a reliable and versatile measuring device.

2. Sanwa CD800a multimeter

If you're looking for a multimeter to measure frequencies, the Sanwa CD800a is one worth considering. 

The Sanwa CD800a allows measurement of AC and DC voltages up to 600V, along with the ability to measure currents up to 400mA, ensuring high accuracy in measurements. Besides, this device also supports many other measurement functions such as measuring resistance up to 40MΩ, measuring capacitors, testing diodes, and checking circuit continuity.

In particular, the Sanwa CD800a is capable of measuring frequencies in the range of 5Hz to 100kHz with high accuracy of 0.5%, helping you perform measurements accurately and effectively. With diverse features and stable performance, the Sanwa CD800a is an ideal choice for your daily measurement needs.

Conclude:

Above are my shares on how to use a multimeter to measure Hz. If you need more information or want to buy quality, genuine electricity meter products, please contact us.