What is this device used for?
This is a handheld insulation resistance tester designed to measure the insulation resistance of electrical equipment, wiring, motors, transformers, and cables. It helps you verify insulation integrity and identify potential electrical faults before they become safety hazards or cause equipment failure.
What does “True RMS” mean?
True RMS (Root Mean Square) measurement means the tester accurately reads AC voltage even when the waveform is distorted or non-sinusoidal — which is common in real-world electrical environments with modern electronics and variable frequency drives. You get reliable readings where average-responding meters would give incorrect results.
Is this tester suitable for fieldwork?
Yes. The compact handheld design makes it ideal for electricians, maintenance technicians, and engineers working on-site, in panels, or in tight spaces.
What does the high voltage output alarm do?
The alarm alerts you when high test voltage is being output, so you’re always aware that a live test is in progress. This helps prevent accidental contact and improves safety during testing.
How much data can the tester store?
The built-in memory stores up to 99 groups of measurement data, so you can log readings across multiple test points and review or record them later — no need to write down results in the field.
What is the Data Hold function?
Data Hold freezes the current reading on the LCD display, allowing you to safely remove the probes and read or record the value at a comfortable distance from the test point.
Does the screen work in dark environments?
Yes. The LCD backlight lets you clearly read measurements in dim areas such as electrical cabinets, basements, or outdoor work at night.
What happens if I forget to turn it off?
The auto power-off feature automatically shuts the tester down after a period of inactivity, conserving battery life so it’s ready when you need it.
Who should operate this tester?
Insulation testing involves high voltage output and should only be performed by qualified personnel familiar with electrical testing procedures and safety practices.
Can I test equipment that is still powered?
No. Always de-energize, isolate, and discharge the equipment under test before connecting the tester. Never perform insulation resistance testing on live circuits.
How do I maintain the tester?
Store it in a dry place, keep the test leads in good condition, replace the batteries when the low-battery indicator appears, and periodically verify accuracy against a known reference if required by your procedures.
Who Is the Authorized Dealer for the Uni-T Insulation Resistance Tester UT 505B?
Terminator.ae is the authorized dealer for the Uni-T Insulation Resistance Tester UT 505B. Choose Terminator.ae for a convenient purchasing experience and assistance with your testing equipment requirements.
