Cable Tester 8740K Series

Cable Tester 8740K Series|8740NAK/8740NK
  • Test pin 1024
  • Number of test file up to 500 sets
  • Open/Short
  • Cond. Resistance test
  • AC/DC Hipot Test
  • DC insulation
  • Quick conductance
  • Multiple DUT test
  • Support bar code scan and print function
  • Automatically identify the normal or reverse plugin of wire or connectors

MICROTEST 8740K Series Cable Harness Tester employs two-wire measurement technology and is suitable for products that do not require very low resistance measurements, considering the cost factors of the testing fixture. The testing capabilities include continuity impedance, open/short circuit, AC/DC safety withstand voltage, IR insulation, and component testing (resistor/capacitor/diode). The testing points can be selected up to 1024 points, with a maximum AC withstand voltage output of 700V and a maximum DC withstand voltage output of 1000V. It supports PC connectivity software and BAR Code scanning, meeting the requirements for automated line testing in wire and connector production.



8740K Series
Model 8740NAK 8740NK
AC Hi pot Test 100V-700V -
DC Hi pot Test 50V-1000V 50V-1000V
Test Pin 1024



Safety Hi pot Test
AC Hipot Leakage Current

0.01mA -5mA

(Must do correction before test when spec. is lower than 0.1mA)

DC Hipot Leakage Current 0.1µA-1000µA
DC Hipot Insulation Resistance


(Please read the manual carefully before doing this test)

Hipot Output Accuracy ±5%
Hipot Measurement Accuracy ±5%
Rated Output 5Vdc
Hipot Measurement Time 0.01S - 60S
Wire Specifications Maximum allowable capacitance 5μF
Low Voltage Electrical Test
Measuring Mode 2-Wire Test
Conductance 100mΩ-52Ω
Intermittence Conductance 100mΩ-52Ω


Intermittence O/S

Quick Intermittence open circuit

O/S Determinal Judge
Single-Side Test
Component test
Resistance Measurement Range 100mΩ-2MΩ
Level Signal 2.4V (Fixed)
Current Signal 35mA
Capacitance Measurement Range 10pF-3µF
Level Signal 1.2V (Fixed)
Frequency Signal

AUTO Gear (Fixed)


Diode Measurement Range 0-7V
Other Function
Advanced Functions Programmable continuous test / Pin search/Auto-diagnosis
Test Scan Mode Auto, Manual, External Trigger
Measurement Signal Low Voltage Measurement Signal
Panel System/Rapid /Edit / Function
Indicator Pass/Fail HV LED red-green indicator lights / Screen Display /Sound



Operation Manual, Auto, Remote Control
Built-in Storage Number of test file up to 500 sets
Power Supply Fixed Voltage 115/230 Vac ±10%
Frequency 60/50Hz
Power consumption 250VA
Environment Temperature 0℃-40℃
Humidity RH≦75%
Display 320*240 dot-matrix display



435x270x360 mm
Weight 1024PIN 18Kg
Interface RS-232, USB Host, Print, Remote