Multi functional tester / MFTs and electrical testers are essential tools for electricians, allowing them to work effectively and efficiently. Electricians use MFTs for electrical test and measurement to see if electrical installations are functioning correctly and safely. Types of tests carried out by multifunction testers include loop, residual circuit device, earth resistance, phase sequence testing and continuity. There is also other electrical test equipment available that carries out basic tasks such as measuring voltage.
There are a lot of MFTs on the market, so the choice can be daunting. It’s key to make sure you buy the right tester for your specific needs. At RS, we supply engineers across the world with quality, reliable equipment. Our in-depth guide will help you consider all the key features and find the best electric tester or multifunction electrical tester for your needs.
The first thing you need to be aware of is electrical safety standards. BS7671 is the British standard used since 1992 for electrical installation and safety in domestic, commercial, and industrial properties. 7 tests are included in BS7671, but most installations only require 5. Selecting the ideal multifunction testing equipment depends on the type of work you perform. MFTs fall into three categories:
- Domestic.
- Commercial – working at higher voltages with more extensive residual circuit device testing.
- Industrial – additional testing capabilities for industrial applications, e.g. medical equipment.
It’s important to understand the range of multifunction and basic electrical test equipment available. It includes these types of tester: