KYORITSU MULTI FUNCTION INSTALLATION TESTER KEW 6516BT

The Ultimate Tester for Electrical Professionals

In the demanding field of electrical installation, having a single, reliable instrument that can handle a vast array of tests is a game-changer. The multi-function tester detailed here is precisely that tool, an all-in-one device designed for professionals who require a lot of testing power. It consolidates numerous functions into a single, portable unit, eliminating the need to carry multiple specialized testers. This device’s comprehensive capabilities cover insulation, earth, loop, RCD, and continuity tests, as well as voltage, phase rotation, and even SPD (Surge Protection Device) testing. The 3.5-inch color LCD dot matrix display is a central feature, providing clear, intuitive, and detailed visual feedback, making complex test results easy to understand and interpret. This tester’s design emphasizes efficiency, accuracy, and user convenience, making it an indispensable asset for any professional involved in the installation, maintenance, or troubleshooting of electrical systems.

Precision and Safety in Insulation Resistance Testing

One of the most critical tests for ensuring the safety of an electrical installation is insulation resistance. This tester offers a wide range of test voltages (100V, 250V, 500V, and 1000V), allowing it to be used for a diverse set of applications, from low-voltage circuits to high-voltage industrial equipment. The instrument provides a rated current of 1.0 to 1.2mA, which is crucial for accurate measurements. The auto-ranging feature for insulation resistance simplifies the testing process, automatically selecting the appropriate range. The device’s safety is further reinforced by its auto-discharge voltage function, which safely dissipates any residual charge after a test, protecting both the user and the equipment. Its compliance with the IEC 61557-2 standard ensures that the measurements are accurate and reliable, giving professionals the confidence they need in their work.

Advanced Loop and PSC/PFC Testing Capabilities

The integrity of an electrical circuit’s protective measures depends heavily on its loop impedance. This tester features advanced LOOP ATT (Anti-Trip Technology), which performs loop impedance tests without tripping RCDs, a significant time-saver and convenience feature. The device offers both 2-wire and 3-wire loop tests, including a high test current range of 2Ω with a resolution of 0.001Ω, providing exceptional precision for low-impedance measurements. Furthermore, the tester can calculate PSC (Prospective Short Circuit Current) and PFC (Prospective Fault Current) up to 50kA, a vital safety parameter for ensuring that the circuit’s protective devices are correctly rated. The Zs Limit function is another intelligent feature, automatically comparing measured results with the values required by electrical installation standards, helping users to quickly identify non-compliant installations.

Comprehensive RCD Testing for Enhanced Protection

RCDs (Residual Current Devices) are a cornerstone of modern electrical safety, and this tester provides an exhaustive suite of functions to verify their proper operation. It supports a wide variety of RCD types, including AC, A, F, and B (General & Selective), as well as dedicated EV (Electric Vehicle) RCD testing, with trip currents ranging from 6mA to 1000mA. The tester can perform single, auto, ramp, and contact voltage tests, offering a thorough diagnostic analysis of RCDs. The ramp test, in particular, is invaluable for determining the precise trip current of an RCD, while the auto-test feature automates a sequence of tests, saving time and ensuring a consistent and comprehensive verification process.

Essential Features for Installation and Maintenance

Beyond the core functions, this multi-function tester includes a host of other features that make it an indispensable tool. The Continuity test function, with a selectable buzzer for fast judgment, is essential for checking the integrity of circuits and protective conductors. The device supports Phase Rotation testing on 3-phase lines, with clear indications on the display of the correct or reversed sequence. The TRMS Voltage measurements (2 to 600V) and mains frequency checks are also integrated, providing a complete picture of the electrical conditions. The device even includes a Surge Protection Device (SPD) test for varistor-based SPDs, a feature that is becoming increasingly important for protecting sensitive electronics from voltage spikes.

Advanced Functionality and Smart Design

The tester’s design is a testament to its focus on professional-grade performance and user experience. The large, color LCD display is the centerpiece, offering a clear and well-structured interface. It even includes a HELP function that displays connection diagrams, guiding the user on how to correctly connect the instrument for each selected test. The robust physical design is rated to IEC 61010-1 CAT IV 300V / CAT III 600 V, ensuring a high level of safety and durability. The device is powered by eight AA batteries and includes a USB communication interface, allowing for data transfer to a computer for analysis and reporting. The comprehensive set of included accessories, such as test leads, earth spikes, and carrying cases, means that the user has everything they need to start working right out of the box.