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KD2678 Series Handheld DC Resistance Tester | 4-Wire Micro-Ohmmeter with Temperature Compensation
KD2678 Series Handheld DC Resistance Tester | 4-Wire Micro-Ohmmeter with Temperature Compensation

KD2678 Series Handheld DC Resistance Tester | 4-Wire Micro-Ohmmeter with Temperature Compensation

Applications:

The KD2678 Series Conductive Resistance Tester is a high-precision instrument designed for the electronics, electrical, and manufacturing industries. It is used for measuring the DC resistance of various components, including switches, relays, transformers, inductors, motors, wiring harnesses, and printed circuit boards (PCBs). This device is also essential for quality control in production lines, testing contact resistance of connectors, metal riveting resistance in automotive and aerospace applications, and the resistance of fuses and conductive rubber.

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    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

The KD2678 is a high-performance, handheld DC resistance tester developed by Wuhan Kaidizhengda Electric Co., Ltd. It features a 32-bit CPU and a 4.3-inch IPS color LCD screen for clear and intuitive operation. The instrument employs a 4-terminal (Kelvin) testing method to ensure high accuracy and eliminate lead resistance errors. With a wide measurement range from 1µΩ to 2MΩ and a maximum test speed of 20 readings per second, the KD2678 is suitable for both R&D and high-volume production environments. It includes advanced functions such as temperature compensation, a built-in comparator for pass/fail sorting, and multiple interfaces (RS232, Handler, USB) for automation and data logging.

Features:

  • High Precision & Wide Range: Offers a measurement range from 1µΩ to 2MΩ with a basic accuracy of 0.05% and a 4.5-digit display.
  • 4-Terminal Kelvin Testing: Utilizes a 4-wire measurement method to ensure high accuracy, especially for low-resistance measurements, by eliminating the influence of test lead resistance.
  • Temperature Compensation: Equipped with a temperature sensor input (PT1000) to measure ambient temperature and automatically compensate resistance values to a standard temperature (e.g., 20°C), ensuring consistent results.
  • High-Speed Testing: Capable of up to 20 measurements per second in fast mode, significantly improving testing efficiency on production lines.
  • Intelligent Comparator (Sorting): Features a built-in comparator with 5 sorting bins (3 pass, 2 fail) and audible/visual alarms (PASS/FAIL indicators) for rapid quality control.
  • Multiple Interfaces: Includes RS232, Handler, and USB HOST interfaces for remote control, integration into automated test systems, and data logging to a USB flash drive.
  • Data Storage & Recall: Can save and recall up to 5 sets of instrument settings and test parameters for different product types.
  • User-Friendly Interface: Features a large, high-brightness 4.3-inch color LCD screen and an intuitive keypad for easy setup and operation.

Parameter:

The technical specifications of the KD2678 series are defined by its high-precision measurement capabilities and versatile testing functions. The following table outlines the parameters for different models in the series.
Parameter KD2678 (Standard) KD2678A (Simplified) KD2678B (Simplified)
Measurement Range 1µΩ - 2MΩ 1µΩ - 200kΩ 10µΩ - 20kΩ
Display 4.5-digit LCD 4.5-digit LCD 4.5-digit LCD
Basic Accuracy 0.05% - 0.1% 0.05% - 0.1% 0.05% - 0.1%
Test Speed Fast: 20/s, Slow: 10/s Fast: 20/s, Slow: 10/s Fast: 20/s, Slow: 10/s
Test Current 1µA - 1A (Auto-ranging) 10µA - 1A (Auto-ranging) 100µA (Fixed)
Temperature Compensation Yes (PT1000 Sensor) No No
Interfaces RS232, Handler, USB RS232, Handler, USB RS232, Handler, USB
Power Supply AC 198V-242V, 50/60Hz AC 198V-242V, 50/60Hz AC 198V-242V, 50/60Hz
Dimensions (W*D*H) 335mm × 86mm × 216mm 335mm × 86mm × 216mm 335mm × 86mm × 216mm
Weight Approx. 4.5kg Approx. 4.5kg Approx. 4.5kg