UNI-T UT516B Insulation Resistance Tester

UNI-T UT516B Insulation Resistance Tester - Image 2

UNI-T UT516B Insulation Resistance Tester

The UT516B is a digital high voltage insulation resistance tester with 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V and 12000V. Fine adjustment of voltage with 10% step at each range (except 12000V) is available. Test data can be saved in the tester memory and transferred to a PC via the dedicated USB cable, or be transferred to a PC in real time. The tester, with high performance and easy operation, is widely used in the measurement and maintenance of power equipment and power supply circuits.

Product Datasheet

Categories: Insulation Tester, Overhead Cable Fault Location System

Description
Brand

The UNI-T UT516B insulation tester is a high-voltage professional device that measures insulation resistance with high accuracy in industrial and power system applications. It supports multiple test voltages from 500V to 12kV, so users can test transformers, generators, cables, and other high-voltage equipment easily.

Moreover, engineers and maintenance professionals use this advanced tester to detect insulation faults, leakage currents, and system degradation. As a result, they can identify issues early and prevent equipment failure.

In addition, the device delivers stable and reliable performance in demanding environments. It works effectively in power plants, industrial facilities, and electrical maintenance projects. Therefore, professionals can depend on it for accurate results during critical testing tasks.

Specifications

Specifications		Range	UT516B
Insulation Resistance Measurement	500V	0.50MΩ~4.99G	±(5%+5)
		5.00G-49.9GΩ	±(10%+10)
		50.0GΩ-500GΩ	for reference only
	1000V	1.00MΩ-9.99GΩ	±(5%+5)
		10.0G-99.9GΩ	±(15%+10)
		100GΩ-1000GΩ	for reference only
	2500V	2.50MΩ-24.9GΩ	±(5%+5)
		25.0G-249GΩ	±(15%+10)
		250GΩ-2.5TΩ	for reference only
	5000V	5.00MΩ-49.9GΩ	±(5%+5)
		50G-499GΩ	±(15%+20)
		500GΩ-5.0TΩ	for reference only
	10000V	10.0MΩ-99.9GΩ	±(10%+10)
		100G-999GΩ	±(20%+20)
		1000GΩ-10TΩ	for reference only
	12000V	12.0MΩ-99.9GΩ	±(10%+10)
		100G-999GΩ	±(20%+20)
		1000GΩ-10TΩ	for reference only
Output voltage	500V		0~+10%
	1000V		0~+10%
	2500V		0~+10%
	5000V		0~+10%
	10000V		-5~+10%
	12000V		-5~+10%
Load current	500V (R=500KΩ) 1mA		0%—+20%
	1000V (R=1MΩ) 1mA		0%—+20%
	2500V (R=2.5MΩ) 1mA		0%—+20%
	5000V (R=5MΩ) 1mA		0%—+20%
	10000V (R=10MΩ) 0.15~1.2mA		0%—+20%
	12000V (R=12MΩ) 0.15~1.2mA		0%—+20%
DC voltage measurement	30V~1000V		±(3%+5)
AC voltage measurement	30V~750V (50~60Hz)		±(3%+5)
Features
PC software for data analysis			√
Backlight Function			√
Date storage	999 sets of date		√
Dielectric Absorption Ratio (DAR)	0.00~999		√
Polarization Index (PI)	0.00~999		√

Brand

UNI-T, CHINA

UNI-T Test Equipment Pakistan

UNI-T Test Equipment Pakistan provides reliable solutions for electrical measurement, diagnostics, and electronic testing. The globally recognized brand UNI‑T develops professional instruments used by engineers, technicians, electricians, and electronics professionals. In Pakistan, Sarwar Electronics serves as an official dealer and reseller of UNI-T products, supplying genuine testing instruments to engineers and technical professionals across the country. These tools help users perform accurate measurements, troubleshoot electrical systems, and maintain equipment reliability.

About UNI-T China

UNI‑T (Uni‑Trend Technology Co., Ltd.) is a leading manufacturer of electronic testing and measurement instruments. The company focuses on innovative technology and high-quality manufacturing to support professionals working in electrical, industrial, and electronics environments. Because modern industries require precise measurement tools, UNI-T products combine advanced features with durable design. As a result, engineers can perform reliable diagnostics and measurement tasks in demanding conditions.

UNI-T Product Range

UNI-T offers a wide selection of instruments designed for electrical testing and measurement applications. Popular product categories include:

Digital multimeters
Clamp meters
Digital oscilloscopes
Insulation testers
Power measurement instruments
Electronic testing tools

These instruments allow professionals to measure voltage, current, resistance, and other electrical parameters accurately.

Applications of UNI-T Instruments

UNI-T instruments support many industries that require accurate electrical measurement and diagnostics. Common applications include:

Electrical installation testing
Industrial equipment maintenance
Electronics repair and diagnostics
Power system inspection
Technical training and laboratories

Accurate testing tools help engineers detect faults early and maintain reliable system performance.

Reliable Test Equipment in Pakistan

In Pakistan, Sarwar Electronics provides genuine UNI-T testing instruments for engineers, technicians, and industrial professionals. Access to professional measurement tools helps organizations improve efficiency and maintain electrical safety standards. With continuous innovation and advanced technology, UNI‑T continues to deliver dependable testing solutions used worldwide.