Cable Harness Tester
TYPE-C 2-wire cable tester

8740NAC USB Type-C cable or connector tester has 128 and 256 test pin. 

  • Test pin 128/256
  • Number of test file up to 500 sets
  • Using fixture 8740F-2
  • Automatically identify the normal or reverse plugin of wire or connectors
  • The measurement items: Open/Short, Conductance, Components ,AC Hipot, DC insulation/Hipot, Quick conductance, Intermittence O/S, and Quick Intermittence open circuit.
  • Multiple DUT test - 4 (standard)/ expand 14 (option)
  • USB Host storages setting files and can update firmware
  • Support bar code scan and print function
  • External current expand box for wire buck measurement
USB Type-C 4 Connector loop  

Cable tester 8740NAC measure USB Type-c cable. There are four types of wire loop status (++, +-, --, and -+), the 8740NAC cable tester will automatically determine the loop status. After selecting the four loop files by sequential test, you can start the test。

Measurement Data

Model Name 8740NAC
Measuring Mode 2-wire
Test Pin 128/256
AC output voltage 100-700V
DC output voltage 50-1000V
Hipot Output Accuracy ±5%  
Hipot Measurement Accuracy ±5%  
Rated Output 5Vdc  
Hipot Measurement Time 0.01 Seconds
Wire specifications Maximum allowable capacitance 5μF
Test Scan Mode

Auto, Manual, External Trigger

Measurement Signal Low Voltage Measurement Signal
OS Positive and negative judgment method Sequential mode netlist
OS Voltage Fixed 0.7V
OS Netlist test mode Pattern
Panel System / Rapid / Edit / Function 
Indicator Pass/Fail HV LED red-green indicator lights/Screen Display/Sound


Built-in Storage Number of test file up to 500 sets
Power Supply Fixed Voltage 115 / 230 Vac ±10% 
Frequency 60/50Hz
Interface RS-232, USB Host, Print, Remote
Operation Manual、 Auto、 Remote Control
Display 320*240 dot-matrix display
Environment Temperature :0 ~ 40  Humidity : RH75%
Dimension (W*H*D) 8740NAC(128) - 435x145x406 mm
8740NAC(256) - 435x145x406 mm
Weight   8740NAC(128) - 8.44 kg
8740NAC(256) - 9.3 kg

Measurement Items and Measurement Range

Measurement Items
Measurement Range
Conductance 100mΩ-52Ω
Intermittence Conductance 100mΩ-52Ω
AC Hipot Leakage Current 0.01mA -5mA
DC Hipot Leakage Current 0.1µA-1000µA
DC Hipot Insulation Resistance 1MΩ-1GΩ
O/S, Intermittence O/S,  Quick Intermittence open circuit
Resistance - Measurement Range  100mΩ-2MΩ
                  Level signal Fixed 2.4V
                  Current signal 30mA
Capacitance - Measurement Range  10pF-3µF
                    Frequency signal AUTO Gear (Optional) 48Hz/480Hz/4.8kHz/48kHz
                    Level signal Fixed 1.2V
Diode 0-7V
Single-Side Test Able to do the Single-Side Test
O/S determinal Judge With this feature

Advanced Functions 

Programmable continuous test
Pin search


All kinds of wires, connectors and combined products of connectors and wires



益和 MICROTEST 8740NAC(type-c)
Cable tester 線材測試儀器
operating instruction 操作說明


For YOUKU Link:

1. 益和 MICROTEST 8740NAC Type-c  线材测试仪器  操作说明


Standard Accessories

  • Power Cord
  • User Manual CD
  • 8740F-2
  • AK-8600F1- 8740N/8740NA
  • AK-8600F2-8740FA
  • 8730-J2
  • Probe

Optional Accessories

  • PC Link Software
  • remote control cable
  • KB-8730K1
  • F874003
  • F874001
  • FX-000C16
  • FX-000C18
  • FB-8600M1
  • Network Fixture
  • 760001
  • printer
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