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NR6600 series DC resistance tester

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Product patent

Product description

Product Introduction

　　It is used to quickly measure the DC resistance of inductive devices such as transformer windings, motor windings, reactor windings, arc suppression coils and PT. It is a replacement product for DC single/dual-arm bridges. It can be used to check the welding quality of the winding, short circuit, damage, wrong lead wire, tap switch status and other problems. It is an indispensable test equipment for handover test, preventive test, overhaul test, and change of tap changer.

Main Feature

　　◆ It can quickly establish the test current, the test speed is a hundred times that of the electric bridge, and the test repeatability is good;

　　◆ The built-in fast discharge circuit takes only a few seconds to complete the discharge, and can dynamically indicate the discharge status, thereby effectively ensuring the safety of the person and the instrument;

　　◆ In a severely disturbed environment, the last digit can still stabilize at one word.

Technical Parameters

Instrument parameters	NR6602	NR6605	NR6610	NR6620	NR6640	NR6650
Output current	2A	2mA、20mA、 200mA、2A、5A	1mA、10mA、100mA、 1A、5A、10A	2.5A、5A、 10A、20A	2.5A、5A、10A、 20A、40A	2.5A、5A、10A、 20A、50A
Measuring range	1μΩ～2kΩ	1mΩ～2kΩ	200μΩ～20kΩ	0Ω～100Ω	1μΩ～20Ω	40μΩ～4Ω
measurement accuracy	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%