Cable/Harness Tester
4-Wire Precision Cable/Harness Tester

The Microtest 8751 harness cable test uses four-wire measurement for measuring cables; the conductor resistance accuracy is 10 times of the 8740. It can avoid resistance caused by connecting fixture cables, allowing conduction measurement to be more accurate.

The following functions were also improved for the 8751 when used with the 8740 machine according to user feedback: 1. The analysis for low conductor resistance test objects are even more accurate and the stability of the measurement values are higher. 2. The node parallel effect of the two cables 8740 was improved, so that it can analyze more complicated passive component network tables. 3. The meter mode was added to save the trouble of having to use an additional multi-meter when repairing test objects. 

  • 64/128/256 testing points
  • Number of test file up to 500 sets
  • Multiple DUT testing - 4 pieces(standard)/14 pieces(option)
  • Identify the defective step of sequencial multiple DUT test
  • Automatically identify the normal or reverse plugin of connectors
  • Capacitor polarity and diode leakage current test
  • DC Hipot insulation test rapidly
  • AC/DC Hipot leakage current test rapidly
  • With single ended cable Open/Short test and HV Insulation/Leakage Current Test
  • With Open/Short/Conductance/Components test
  • Extendable testing ranges of Open/Short: 2k ~ 100kΩ
  • Advanced technology high speed of “Intermittence Open/ Short and Conductance Test”
  • USB (Software update, test results storage, files up/down)
  • With Speaker/Earphone jack
  • LCD contrast/Sound Volume (adjustable)
  • External current expand box for wire buck measurement

Measurement Data

Model 8751N 8751NA 8751FA
AC Hipot   - 100 ~ 700V  100-1000V 
DC Hipot  50 ~ 1000V  50 ~ 1000V 50-1500V 
AC Hipot Leakage Current 0.01mA ~5mA  
DC Hipot Leakage Current 0.1µA ~ 1000µA
DC Hipot Insulation 1MΩ ~ 1.2GΩ
Hipot Output Accuracy ±5%
Hipot Measurement Accuracy ±5%    
Rated Output 5Vdc    
Low Voltage Resistance 0.1Ω ~ 20MΩ    
Ponit of Test  64/128/256 Points 64/128/256 Points 64/128/256 Points
Hipot Measurement Time 0.01 Second - 60 Seconds
Test Scan Mode

Auto, Manual, External Trigger

Measurement Signal Low Voltage Measurement Signal
DUT Requirement Maximum Electric Capacity Allowance 3μF
Panel System / Rapid / Edit / Function 
Indicator Pass/Fail HV LED red-green indicator lights/Screen Display/Sound


Power Supply Fixed Voltage 115 / 230 Vac ±10% 
  Frequency 60 / 50 Hz
Display 320*240 dot-matrix display
Interface Printer Port, RS-232, USB
Flash Memory

Store up to 500 Sets of Test Settings Files

Operation Manual、 Auto、 Remote Control
Environment Temperature :0 ~ 40  Humidity : RH75%
Dimension (W*H*D) 8751(64) - 435x145x406 mm
8751(128) - 435x145x406 mm
8751(256) - 435x190x406 mm
Weight  8751(64) - 8.44 kg
8751(128) - 9.3 kg
8751(256) - 14 kg

Parameters Measurement Ranges

Item Range
Open/Short  2KΩ ~ 100KΩ
Intermittence Open/ Short 2KΩ ~ 100KΩ 
Open/Short determinal Judge Judge Momentary Broken Circuit
Conductance 10mΩ ~ 52Ω
Resistance 0.1Ω ~ 20MΩ
Capacitance  10pF ~ 3µF  
Diode 0 - 6.8V   
IR  1MΩ ~ 1.2GΩ  
Single-Side Test Able to do the Single-Side Test
AC Hipot Leakage Current  0.01mA ~5mA
DC Hipot Leakage Current  0.1µA ~ 1000µA

Advanced Functions 

Programmable continuous test
Pin search


All kinds of wires, connectors

No relevant audio and video files

Standard Accessories

  • Power Cord
  • Test Report
  • User Manual CD

Optional Accessories

  • Remote Control Cable
  • Calibration Kits(KB-8750K1)
  • Current Expand Box(F874003)
  • (F8750001)
  • Multiple DUT Testing Expand Box(F874001)