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MICROTEST Launches 8761 4-Wire Cable Tester

Microtest launches 8761 cable/harness tester, it provides three different pins, such as 64, 128 and 256. The test profiles can be up to 500 sets or mote. The measuring circuit is designed to use true 4-Wire type. The on-state impedance accuracy is 10 times the 8750, avoiding the resistance issues caused from adapting the fixture wires, making the on-state measurement more accurate. To achieve the resolution of the on-state resistance of 1mΩ, the multiple filter line at the power supply is used, which reduces the generation of ripples 10 fold and also reduces thermal consumption and external power interference, giving the tester more measuring stability. 

 

 

The 8761 cable/harness testers can measure USB type-C cables: For Type-C cables whose port directions are unable to be identified, they provide setup combining determination of the forward and reverse directions. Therefore, they can be used normally regardless of being inserted with the A/B side connection in forward or reverse direction. They can automatically produce standard file data with simply learned actions, convenient for testing. Additionally, you can purchase the externally connected constant current box with Type-C cable and VbusGnd power signal line inside to test the voltage difference between two ends for ensuring the safety that the cable can resist the rated current impact. 

 

The 8761 supported USB, RS232, LAN (option), Printer, etc. It can also provide image signal processing. For the measurement technology, it uses the high-end 32 Bit True-RMS DSP (digital signal processor), able to accurately measure and also quickly process communication signals, to upgrade the capacitance measurement, single-side measurement, to determine the A/B side with poor ends and AC withstanding voltage and leaking current, etc. The 8761 cable/harness testers are used not only for measuring cables/harnesses, connectors and PC boards, but they can also be effectively used for one-time tests of the associated products of cables and connectors with PCB and IC components. For single-side in-progress cables or multi-connector finished products, it can also give a complete test. In addition, for fixture compatibility of 8740/8751, the optional adapting board for converting 4-Wire to 2-Wire is also provided, preserving the usability of the original fixture.

 


8761 cable/harness tester adds several functions:

  1. O/S point position automatic learning or editing. After confirmation, the point position will automatically introduce the component-editing table to facilitate editing of components.
  2. In the high-voltage setting mode, the DC insulation can be changed to DC withstanding voltage. The insulated resistance will then be automatically changed to leakage current.
  3. One item of voltage test determination is added in the component editing functions to meet customer’s more complete testing requirements.
  4. Constant current setting and O/S test voltage setting are added in the setting mode (there are IC components in Type-C power signal cables) 
  5. Increase of the electric meter mode can save the object to be tested for maintenance. In addition, one tester can be used for three purposes.  
  6. Addition of the quick intermittence open circuit function, to be used for quality inspection or online usage, which can replace the intermittence shutdown function. 

 

Comparisons of 8761/8751/8740 cable/harness testers:

Model

8761

8751

8740

Type

True 4-Wire

Inner 4-Wire

2-Wire

Pin

64/128/256

64/128/256

128/256/512

impedance accuracy

Excellent

Good

Fair

Voltage measuring function

Yes

No

No

Quick intermittence open function

Yes

No

No

Meter mode

Yes

Yes

No

Adapting 2-Wire

Yes

Yes

No

TYPE-C Measurement

Yes (smart type)

Yes

Yes

Number of stored files

500 sets

500 sets

500 sets

Support interface

RS232, USB Printer, LAN (Option)

RS232, USB, Printer

RS232, USB, Printer

About us

MICROTEST CORPORATION has dedicated itself to the high precision testing and auto measuring fields for more than 22 years. We have instruments and equipment developed independently including LCR Meter, Impedance Analyzer, Transformer Tester, Safety/Reliability Tester, Comprehensive transformer testing system, Cable/Harness Tester, Motor Tester, Auto Testing Equipment, PCB Testing Instrument and so on. In addition to the quality testing equipment of high standard, we provide a total test solution and complete customized service to meet every test requirement of our customer through design of the products, and the technique and quality are highly recognized by our partners. We are committed to the satisfaction of our customers with our leading R&D capabilities, and intensive sales and aftermarket service systems. We not only rank as an ISO-9001 certified company, but also hold tens of patents for our products. We have won many R&D and innovation awards in Taiwan and received industry-wide recognition of the techniques and achievements that we made in past years. In addition to the quality product testing equipment and comprehensive service, we provide our customers with the real-time support and service to meet their requirements in different situations. If you need more information, please visit our official website: http://www.microtest.com.tw/en/index.php

 

 

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