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  3. Tonghui Insulation Resistance Meter TH2684/A

Tonghui Insulation Resistance Meter TH2684/A

Tonghui Insulation Resistance Meter TH2684/A

Tonghui Insulation Resistance Meter TH2684/A

Product catalog summary
Overview
The TH2684/TH2684A High Precision IR Tester is an advanced instrument designed for rapid and accurate measurement of insulation resistance (IR) in electronic components, dielectric materials, and cables. It features a user-friendly interface with a large LCD display and supports both Chinese and English languages.

Key Features
  • High-speed measurement capability of up to 100 measurements per second.
  • High measurement accuracy of ±2% for resistances below 1TΩ.
  • Wide measurement range: TH2684 from 10kΩ to 50TΩ and TH2684A from 10kΩ to 100TΩ.
  • Ultra-low leakage current testing with a minimum current of 10pA and accuracy of 2% ±2pA.
  • Dual voltage outputs for precharge and test voltage, with TH2684 supporting up to 500V and TH2684A up to 1000V.
  • Programmable sequence test mode with up to 18 steps.
  • Contact detection function for capacitive components.
  • Interfaces for remote control and automation, including RS232C, USB, and Handler interface.

Specifications
  • Resistance Test Range: TH2684 (10kΩ to 50TΩ), TH2684A (10kΩ to 100TΩ).
  • Measurement Voltage Range: TH2684 (10V to 500V), TH2684A (10V to 1000V).
  • Current Test Ranges: Seven ranges from 10pA to 1mA with selectable internal input impedance.
  • Measurement Speed: Single measurement in less than 100ms, with continuous mode available.
  • Comparator Function: 4-bin comparison for pass/fail results.
  • Memory: Stores up to 20 sets of setup values.

General Specifications
  • Operating Temperature and Humidity: 10°C to 40°C, ≤90% RH.
  • Power Supply: 90 to 130V AC (60Hz) or 198 to 260V AC (50Hz).
  • Power Consumption: TH2684 (250W), TH2684A (150W).
  • Dimensions: 430mm x 400mm x 130mm.
  • Weight: TH2684 (14kg), TH2684A (10kg).

Applications
The TH2684/TH2684A is ideal for testing the IR properties of capacitors, dielectric materials, and other electronic components, ensuring rapid and precise measurements with programmable testing sequences and robust interface options for automation.
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Catalog excerpts

Tonghui Insulation Resistance Meter TH2684/A-1

TH2684 Features ■ 320^240 dot-matrix LCD ■ Powerful charging function ■ High speed measurement:100meas/sec ■ High measurement accuracy:±2% (< 1TQ ) ■ Contact detection function for capacitive components ■ Measurement range:TH2684 : 10kQ to 50TQ TH2684A: 10kQ to 100TQ ■ Ultra-low leakage current test: minimum current is 10pA, accuracy: 2% ±2pA ■ Measurement voltage:TH2684: 10V - 500V, dual-output TH2684A:10V-1000V,single-output ■ Dual outputs (precharge voltage output and test voltage output) can be set. ■ The precharge voltage output can be set to follow the test voltage output and can be finely adjusted on test voltage. Also the precharge voltage can be set to work in independent mode. ■ When the test current is less than 10nA, the internal input impedance can be selected between 10kQ and 1MQ to ensure rapid and accurate test. ■ TH2684 charge current:2mA , 25mA, 200mA selectable TH2684A charge current:2mA , 25mA , 100mA selectable ■ 7 current ranges, manual or auto range mode ■ 4-bin comparison function ■ Programmable sequence test mode ■ R-T and I-T Curve test and display mode ■ Auto store setup parameters ■ Screen hardcopy to be saved as BMP file to a U disk ■ Automatically upgrade firmware by a U disk ■ Selectable Chinese and English operation interfaces ■ Achieve automatic test system by Handler interface ■ Achieve remote control by RS232C and USB Device interface ■ Support scanning interface for mass tests Brief Introduction ■ TH2684/TH2684A High Precision IR Tester is an intelligent measurement instrument that is used for rapid measurements on IR properties of electronic parts and components, dielectric materials, equipments, cables, etc. Large LCD and user friendly menu provide you easier operation. This instrument is especially designed for capacitor IR test TH2684/TH2684A can achieve rapid measurements through following methods: 1. Selectable internal input impedance: If the current is greater than 10nA, only 10kQ input impedance can be used; if the current is below 10nA, you can choose 10kQ or 1MQ impedance to test. 2. With the built-in dual voltage output, TH2684 can charge large capacitors. By dual voltage output, TH2684 is able to output a precharge voltage up to 500V, 200mA. In voltage follow mode, precharge voltage follow with the test voltage output and can be finely adjusted. Above features ensure the perfect charge of capacitive materials. 3. TH2684A can output a voltage of 1000V, 100mA to fully charge the capacitive material. In addition, user can program the sequence measurement steps (up to 18 steps) on TH2684/TH2684A. For instance, charge, wait, test, and discharge steps can be programmed. Each step can last up to 100s. TH2684/TH2684A has a unique contact detection function. For capacitive material such as capacitors and cables, contact detection function can detect the contact of components under test. Moreover, this detection function will not increase any test time. TH2684 equips with interfaces of RS232, USB DEVICE, SCANNING and Handler. Handler interface provide convenience for automatic test system; SCANNING interface is useful for mass measurement of components. User can use a scanner to speed measurement of components.

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Tonghui Insulation Resistance Meter TH2684/A-2

E. ITH2684/TH2684A High Precision IR Tester Specifications Model Measurement speed General Specifications Operating temperature and humidity Ordering Information TH2684 High Precision IR Tester Instrument Accessories TH26004B 2-terminal test clip leads Options TH26002 IR test fixture

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