UNI-T UT677A+ Internal Resistance Tester

Features

• Accurate Measurement: Employ the AC four – terminal method to precisely measure the internal resistance of batteries, effectively eliminating the interference from lead resistance. The internal resistance measurement range is 0 – 3Ω, divided into 4 ranges with a resolution as fine as 1μΩ. This high – precision measurement is crucial for accurately evaluating battery health.
• Wide Voltage Range: The UT677A+ can measure voltages from 0 – 70V, while the UT677C has an even broader range of 0 – 120V. This wide coverage allows for testing a variety of batteries with different voltage ratings.
• Versatile Measurement Modes: Support both manual and auto measurement, catering to different user preferences and testing scenarios. This flexibility makes the testers suitable for both novice and experienced technicians.
• Data Management: Come with PC software and Bluetooth APP support. This enables seamless data transfer and management. The testers can store up to 500 sets of data, and users can easily save and upload testing data to a PC via the Type – C data interface. They also feature auto/manual data hold functions for convenient data recording.
• Power – Efficient Design: Are powered by a 2600mAh rechargeable lithium battery. They have an auto – power – off function that activates after around 15 minutes of inactivity, along with a low – battery indication with 5 battery level display, ensuring energy – saving and reliable operation.
• Fast Response: Boast a fast response time of 200ms and a short test time of just 2s, allowing for quick and efficient battery testing. The refresh rate of 5 times/s provides real – time data updates.
• Advanced Judgement Function: Have a measurement judgment function where PASS, WARNING, and FAIL judgment thresholds can be preset. This helps users quickly determine the quality and usability of batteries.
• High – Quality Display: Feature a 3.5″ (480*320) color screen, providing clear and easy – to – read data display.
• Strong Anti – interference: Are equipped with automatic frequency tuning (920Hz – 1080Hz) to effectively resist interference, ensuring stable and accurate measurement results even in challenging environments.