Multifunction Testers

Multifunction testers (MFTs) are handheld versatile devices used to verify the safety of electrical installations in domestic, commercial, and industrial settings. These installation testers are designed to streamline and simplify electrical testing processes and ensure that fixed wiring is safe and correctly installed to meet relevant local standards and safety requirements

Multifunction testers are integral to compliance with the 18th Edition of the Wiring Regulations (BS 7671). They enable electricians to meet the stringent testing requirements outlined in the 18th Edition, ensuring that electrical installations are safe, reliable, and in line with the latest industry standards. Additionally, MFTs often conform to other international standards, enhancing their credibility and usability in diverse global contexts.

MFTs are ideal for testing a range of electrical parameters such as voltage, earth resistance, loop impedance and more. Many multifunction testers offer additional features, such as Bluetooth, allowing you to store and transfer data from the device to a computer or mobile device. Here at RS, we have sourced multifunction test meters from leading brands such as Fluke, Megger, RS PRO, and many more. You can learn more in our multifunction testers guide.

What are Multifunction Testers Also Known As?

Multifunction testers can be categorised with many different naming conventions, they are also commonly called electrical testers and multifunction installation testers. However, even though they use slightly different names, they all essentially do very similar things and, due to their nature, can be used in a range of different situations. It is important to check which tests the MFT can perform before you purchase one.

Difference Between Multimeters and Multifunction Testers

They are both electronic measuring instruments. The multimeter measures basic electrical parameters such as voltage, current and resistance. A multifunction tester is tailored for comprehensive testing of electrical installations, ensuring compliance with industry regulations and standards such as the Wiring Regulations (BS7671).

Uses of Multifunction Testers

Multifunction testers, also known as multifunction installation testers, perform a variety of essential tests for electrical systems in New Zealand (NZ). These versatile electrical testers help ensure the safety and functionality of electrical installations, making them indispensable tools for electricians and technicians. Key applications of a multifunction tester include:

Insulation-continuity tests: Multifunction electrical testers diagnose breakdown of the insulation in various parts of the electrical system, such as wires, transformers, and motors. The quality of insulation is critical in ensuring uninterrupted and safe functioning of electrical circuits.
Checking RCD devices: Multifunction installation testers verify the proper functioning of residual-current devices (RCDs). RCDs are designed to disconnect quickly to mitigate the harm caused by electric shock and to avoid current leaks that may lead to fire and other dangerous situations.
Loop testing: A quick, convenient, and specific method of evaluating an electrical circuit's ability to engage protective devices (circuit breakers, fuses, RCDs). A ground loop determines the effectiveness of protective devices.
Resistance measurement of grounding systems: Verification tests to ensure that a system's resistance is low enough to provide protection to people, equipment and structures.
Earth continuity tests: Electrical testers can be used to assess the continuity of earth connections, ensuring that electrical systems are correctly grounded and safe to operate.

Applications of Multifunction Installation Tester

Multifunction testers are used by electrical engineers for electrical installation work to verify and maintain electrical installations and that the required safety regulations have been reached in both commercial and industrial applications.

Their applications span various sectors, including:

Construction: During the construction of buildings and infrastructure, multifunction testers are used to verify the integrity of electrical wiring and connections, ensuring that the electrical system is safe for use upon completion.
Manufacturing: In manufacturing facilities, multifunction testers are employed to troubleshoot electrical equipment and machinery, identifying and rectifying faults that could disrupt production processes.
Automotive: In the automotive industry, these testers are utilised to diagnose electrical issues in vehicles, ensuring the proper functioning of components such as lighting, ignition systems, and charging systems.
Healthcare: Multifunction testers play a critical role in healthcare facilities, where the reliable operation of electrical systems is essential for patient care and safety. They are used to test medical equipment and ensure the integrity of electrical circuits within hospitals and clinics.
Telecommunications: In the telecommunications sector, multifunction testers are used to verify the performance of electrical infrastructure supporting communication networks, such as data centres and cell towers.

How to Order an Electrical Tester from RS?

RS New Zealand is a trusted supplier and distributor of multifunction electrical and installation testers in NZ. Order from leading brands like Fluke, Megger, Metrel and more. To place an order online, browse our extensive catalogue, selecting your preferred products based on your desired specifications. Detailed product descriptions and datasheets are readily available to facilitate better-informed decisions.