Ir al contenido principal

How to check esd mat grounding with multimeter

How to check esd mat grounding with multimeter

You have probably experienced electrostatic discharge (ESD) many times. This occurs when an electrical charge is discharged from a non-conductive surface to a conductive surface. For example, when shuffling your feet across a carpet, especially if it contains synthetic fibers, a static charge can form on your body. As soon as you touch something conductive, such as a metal doorknob, the charge on your body quickly discharges on the metal object. You will feel an electric shock, which is harmless. However, when ESD occurs between sensitive electrical components, such as computers, it can cause serious damage. Since ESD occurs mainly between people and other objects, a special grounded wrist strap should be worn when working with sensitive electrical equipment to prevent ESD.

Step 1
Use the static electricity you have built up on yourself: This is a good way to test for static electricity with a multimeter. Practice discharging ESD first, so you know that electricity is building up. Rub your hands or feet on the carpet, as this causes friction that is converted to electricity and stored until you touch something metallic. Touch something metallic, but make sure it is not an object connected to a power source, preferably a metal doorknob. If you touch a metal object you will receive an electric shock.

Today's document

Step 2
Use a digital multimeter to test for ESD. Digital multimeters use their own batteries to power the display and maintain the reading, unlike analog multimeters that return to zero once the current has been cut off. Since ESD occurs in a microsecond, the reading must be maintained.

Step 3
Select the "Amps" display on the multimeter. Measure the amount of current flowing from one object to another. Connect the metal end of the black multimeter to a metal object before static electricity is formed. Use a piece of tape to hold it together. Hold the plastic cap protecting the metal probe on the red end of the multimeter lead with one hand. Do not touch the metal tip on the end.


Step 4
Rub your foot or other hand on the carpet you practiced on earlier to create a static charge. Touch the end of the red multimeter lead with the fingers of your other hand. You will receive an electric shock when the static discharge travels from your body through the multimeter to the metal object.

Step 5 Read the digital multimeter reading.
Take a reading from the digital multimeter. It indicates the number of amps generated by the ESD. If you want to check the voltage, simply change the digital multimeter setting to Volts and repeat the procedure.

Comentarios

Publicar un comentario

Entradas más populares de este blog

How to measure diesel engine rpm with a multimeter

How to measure diesel engine rpm with a multimeter What is RPM?:In this article we are going to show how to measure RPM with an automotive multimeter, however it is necessary to be clear about certain concepts. RPM  stands for Revolutions Per Minute and is a great way to see how hard your engine is working. When we talk about cars, we can interpret that the more RPM an engine has, the faster it will do its job, thus being able to achieve higher speeds. This result will be obtained accompanied by other factors such as the number of cylinders, and the good condition of the suspension, the transmission system and the torque. The most common way to measure the revolutions of an engine is using a tachometer, but this is an instrument that we do not usually have at home. However, if you have a multimeter it will be more than enough to measure the RPM of an engine. What are the best multimeters to measure engine rpm? Based on our experience, we recommend the Fluke brand   as it ...
Publicar un comentario
Leer más

How to test fuel rail pressure sensor with multimeter

how to diagnose fuel rail pressure sensor How to test fuel rail pressure sensor with multimeter A faulty fuel pressure sensor is not always a problem, but it can cause it to stall or stall. The fuel pressure sensor is part of the vehicle's fuel system. It is responsible for monitoring fuel pressure from the tank to the engine. If it fails, fuel can spill overboard and cause engine problems. Therefore, it is important to know how to check the fuel pressure gauge to determine if this is the cause. It is recommended to check the fuel pressure gauge regularly. To perform this task, you will need a multimeter. This article explains how to check the fuel pressure sensor using a multimeter. What is a fuel pressure gauge? Fuel rail injection pressure sensor - replacement CM5229, 0261230093, 3F2Z9G756AC - for Ford, Lincoln and Mercury vehicles - Crown Victoria, F250 Super Duty, Focus, Explorer, Mustang and E-150. Fuel pressure gauges are pressure sensors that measure the fuel pressure in ...
Publicar un comentario
Leer más

How does a technician measure the amperage output of an alternator

How does a technician measure the amperage output of an alternator First, the mechanic will check the battery cables to make sure they are clean. Next, a voltmeter is used to check that the battery has the correct voltage, which is approximately 12.6 volts. Once a good battery voltage has been established, the battery is then subjected to a load test to see if it can withstand fifty percent of the rated load for fifty seconds without the voltage dropping below 9.6V. Once the battery has been checked, the alternator charging system can be checked. During the test, the mechanic can use a voltmeter to measure the output voltage and an ammeter to measure the alternator amperage. Once the test equipment is connected as required, the mechanic begins testing the alternator. Start the engine and record the voltage and amperage at idle. The engine is then accelerated to between 1,500 and 2,000 rpm and another measurement of voltage and amperage is taken. All lights and accessories were now turn...
Publicar un comentario
Leer más