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High-Voltage Insulation and Grounding Four-in-One Tester

Name: High-Voltage Insulation and Grounding Four-in-One Tester
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

Meets national standards, featuring AC and DC withstand voltage testing and arc detection functions; even extremely low breakdown currents can be accurately measured. Insulation resistance test voltage: 3000 V; test range up to 999 GΩ. Equipped with parallel withstand‑voltage and grounding tests to reduce testing time, as well as ground‑wire detection, leakage current monitoring, and overcurrent protection.

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Switch and socket, wire and cable testing instruments

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lbt@lbt.ltd

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+86-15102211717

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High-Voltage Insulation and Grounding Four-in-One Tester

Description

Product Introduction

The accuracy of all safety‑related test items is 1%, and the accuracy of power measurements is 2%.
Some models feature a withstand voltage rating of 500 VA (5 kV/100 mA, with a short‑term peak of 200 mA), meeting national standards.
It features AC and DC withstand voltage testing as well as arc detection, and can accurately measure and display even extremely low breakdown currents.
Insulation resistance test voltage: 3000 V; test range up to 999 GΩ.
Equipped with a parallel withstand voltage and grounding test function, it reduces testing time.
Equipped with comprehensive protection features, including ground‑fault detection, leakage protection, and overcurrent protection.
Rich interface options: equipped with multiple interfaces including USB, HANDLER, RS232, and WiFi.

Technical Specifications:

Model number	LK8742
AC Withstand Voltage Test
	Scope	Resolution	Precision
Output voltage	300~5000VAC	1V	±(1% of reading + 5 V)
Output frequency	50/60Hz
Breakdown current	0~100.00 mA, duration 200 mA peak	0.001mA/0.01mA	±(1%+0.002mA)
Ramp-up time	0~999.9s	0.1s	±(1%+0.1s)
Descent time	0~999.9s	0.1s	±(1%+0.1s)
Test time	0.5~999.9s	0.1s	±(1%+0.1s)
Current compensation	0~99.999mA	0.001mA/0.01mA
Arc Detection	0~100.00mA	0.01mA	±5%
DC withstand voltage test
	Scope	Resolution	Precision
Output voltage	300~6000VDC	1V	±(1% of reading + 5 V)
Breakdown current	0~9.999mA	0.001mA	±(1%+0.002mA)
Ramp-up time	0~999.9s	0.1s	±(1%+0.1s)
Descent time	0~999.9s	0.1s	±(1%+0.1s)
Test time	0.5~999.9s	0.1	±(1%+0.1s)
Insulation Resistance Test
	Scope	Resolution	Precision
Output voltage	100~3000V	1V	±(1% of reading + 5 V)
Insulation resistance	100~3000V	1V	0.60 m ~ 9.99 m ±(1% of reading + 0.03 m)
			10.0 MΩ to 99.9 MΩ ±(3% of reading + 0.3 MΩ) 100 MΩ to 9,999 MΩ ±(5% of reading + 3 MΩ)
			10.0 GΩ ~ 100 GΩ ±(15% of reading + 0.8 G)
Ramp-up time	0~999.9s	0.1s	±(1%+0.1s)
Descent time	0~999.9s	0.1s	±(1%+0.1s)
Test time	0.5~999.9s	0.1s	±(1%+0.1s)
Latency time	0~999.9s	0.1s	±(1%+0.1s)
Ground Resistance Test
	Scope	Resolution	Precision
Output current	1.0~32.0A (optional 40A)	0.1A	±(1% of reading + 0.2 A)
Output frequency	50/60Hz
Ground resistance	10~600.0 mΩ (voltage not exceeding 12 V)	0.1 mΩ	±(1% of reading + 2.0 mΩ)
Resistance compensation	0~600.0 mΩ	0.1 mΩ	±(1% of reading + 2.0 mΩ)
Test time	0.5~999.9s	0.1s	±(1%+0.1s)
Parallel testing
Standard configuration	Grounding + Withstand Voltage

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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From Thomas Bennett, Quality Director, UK plastic pipe factory

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