Important Electrical Measuring Instruments

24 hr electricians Melbourne has everything you need if you are in trouble in your home appliances. In modern time where everything that is part of life is related to chips and boards i.e. electronic items so they bound to get damaged. It is very imperative that electricians select electrical test and measurement equipment that are up to date. It is a daunting task to choose from so many that are available in the market. You need to consider future as well. Yet, performing electrical testing for maintenance is critical for optimal operations. In order to design and test tools to diagnose, understanding of the latest products is as important as selecting the right equipment tools. Today I will share info about two of these tools that are used in all types of circuit boards and are very Important tools:

1. Digital Multimeter: For testing and diagnose problems related to frequency, voltage fluctuations, data logging, capacitance and other electrical problems Digital handheld multimeter is good equipment to have. It is easy to carry and use. When digital multimeter is used to measure current the it should be connected in line with the circuit being tested. The multimeter’s current measurement must be set at low impedance in order to minimize the loss in resistance.

In digital multimeter there is an other added advantage in case you have mistakenly connected the multimeter to the circuit in parallel power supply then the supply voltage can cause overcurrent to flow resulting in instrument burn but there is a protective fuse in the multimeter which prevents it from getting permanent damaged. Some products intentionally omit a current terminal (“A” terminal) or incorporate a mechanism linked to the rotary switch so as to prevent a test lead from being inadvertently connected to the wrong terminal.

2. Digital Clamp Meter: It is useful to measure leakage in current or to measure load on the current. Models designed to measure leakage current can also measure load currents at commercial frequencies (50/60 Hz). If you choose a model designed to measure load current, check whether it uses mean-value rectification or true RMS rectification. Because sometime models that use mean-value rectification cannot accurately measure RMS values for distorted current waveforms.

If you require to measure DC current or Ac current. For AC current measurement the frequency of the current may vary. In such cases, check the clamp meter’s frequency band. Some clamp meters include tester functionality such as DC/AC voltage measurement or continuity check capability. Check which functions you require and choose a model accordingly.

Determining which to use will depend on what you are measuring and how often you use it. Clamp multimeters are the best for high voltage systems. Digital multimeters are very economical and convenient if you need many different electrical measurements and require high accuracy. These instruments are designed to withstand rugged industrial environments from the plant floor to the field. Portable and benchtop configurations are available for many units. Always select those electrical equipment manufacturer which produces up to date products which are campatible with today’s technology.