Microtest 4-Wire Cable Harness Tester

The Microtest 4-Wire Cable Harness Tester verifies continuity, insulation resistance, hipot withstand voltage, and wiring correctness for complex cable assemblies with hundreds of conductors. The 4-wire (Kelvin) measurement technique eliminates lead and contact resistance from the measurement, delivering accurate low-resistance readings essential for detecting marginal crimps, cold solder joints, and high-resistance connections that 2-wire methods miss.

Test Capabilities

Test	Description
Continuity	4-wire Kelvin measurement, milliohm resolution
Insulation Resistance	Megohm-range IR between conductors and to shield
Hipot Withstand	AC/DC withstand voltage testing per IEC/UL standards
Wiring Correctness	Net list verification against reference harness
Diode Detection	Forward/reverse voltage polarity verification
Resistance Measurement	Precision resistance across full conductor paths
Pass/Fail Sorting	Programmable limits with automatic disposition
SPC Logging	Statistical process control data for trend analysis

Multi-point configurations with programmable test sequences and barcode-triggered test selection support mixed-model production lines where different harness variants run on the same test station. Automotive harness manufacturers, aerospace wire assembly shops, and industrial cable producers use the 4-wire tester to ensure every harness leaving the production line meets electrical specifications before reaching the customer.

Watch the Microtest 4-Wire Cable Harness Tester on YouTube

GSAS Micro Systems provides fixture design consultation, test sequence programming, and handler interface configuration for Microtest cable harness testers deployed in Indian automotive, aerospace, and industrial manufacturing facilities.