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Automotive Relay Test System
The Relay Test System RE 4.0 is a fully automated test system for conducting production tests on relays of various types having rated voltage of up to 30 VDC. The hardware, standard setups and software can be customized to suit specific insectionidual needs. Multiple systems can be networked for centralized data presentation, storage and analysis. The system can be offered with features and specifications to meet insectionidual customer requirements.



  • Test of Oscillation
  • Close and Open Timing test on NO Contact
  • Close and Open Timing test on NC Contact
  • Armature Pick-up Test
  • Armature Drop-out Test
  • Millivolt drop/Micro-ohm test on NO contact
  • Millivolt drop/Micro-ohm test on NC contact
  • Test of Oscillation between two voltage limits
  • Coil Resistance


  • Microprocessor based system with programmable voltage and current sources, measurement hardware, and interface with a master PLC
  • Typical throughput time of 4200 relays per shift
  • Can be made to work as a stand-alone test system, or a single, fully automated, PC-controlled test system
  • Communication hardware available for connecting an external PC
  • The test and data acquisition software provided with the system allows the user to sequence tests, download settings to test sets and log batch-wise results of all the relays tested during a particular shift.
  • Complete flexibility for user to configure test parameters, test sequences, and set pass/fail limits
  • Calibration traceability to National Standards