When talking about instrument test equipment, today, we want to introduce you the instrument test bench which is a device used to check and control the condition and quality of some software product’s specific design or model. In fact, these test benches are electrical testing devices that are a combo of different instruments in one device. They are designed for both electricians and DIY enthusiasts who don’t want to carry more than one test equipment when on duty. For example, before the appearance of these little wonders, most electricians had to carry ohmmeters, voltmeters, AC and DC ammeters, in order to test devices, and these days, the appearance of the instrument test bench have changed this practice.
These equipment tools come in two forms: bench-mounted and handheld form, wherein the bench-mounted ones are more accurate when compared to the handheld ones. However, their main downside is that they are immobile, while the handheld models are very convenient for carrying around. Thus, before you decide on the type of multimeter you want to buy, consider whether you’ll want to place it at your workshop or take it with you. And now, let’s see the differences between these two the types of multimeters.
Generally speaking, almost all types of multimeters can measure a lot of properties like frequency, resistance, inductance, conductance, duty cycles, and temperature. The newest and most advanced types of multimeters have the capacity to measure micro amps, decibels, rotations per minute and a lot more things, while some of the high-end models have graphing capabilities and are waterproof. Furthermore, you can choose between using many accessories like lamps, leads, and probes, the choice is yours.
When it comes to the types, the two basic ones are digital and analogue, wherein the latter multimeters are the older and the less used version. If you want to measure precisely, you should rely on the digital multimeters as they use digital circuits that can measure the current in discrete increments instead of a continuous range of values. Generally, they are made in analogue form and after that converted into a digital form. Because of this, the measuring values are constantly changing which is pretty difficult, and, in fact, this is the only con that digital multimeters have. Digital multimeters also have a battery that powers the multimeter’s display and their accuracy is around a half of a percent. You can choose a high-end laboratory digital model which is more accurate, but you should keep in mind that they are way too costly.
There are three different types of digital multimeters, designed for different purposes. For example, the auto-ranging one is expensive but extremely easy to use when compared to the fluke and clamp one. If you are a beginner, we strongly recommend you to invest in the auto-ranging one as it is more accurate and easier to use.
- The fluke model, on the other hand, has different calibration functions, and these models have usually larger display screen. They also can come with a variety of advanced functions like measuring the temperature, humidity, and frequency.
- And finally, the clamp model is used to measure electricity flow wherein the probes measure the volts and the clamp measures the current flow. This type of multimeter has many settings, so you must be careful when setting it in order to avoid damaging the device.