ISO 7637-2 is a test standard developed by ISO(International Organization for Standardization) concerning electrical transient conduction along power supply lines in road vehicles. The purpose of this standard is to define test methods and procedures of equipment installed on passenger cars and commercial vehicles with 12 V or 24 V electrical systems to ensure their compatibility to conducted electrical transients. ISO 7637-2 defines the function performance status classification for the immunity to transients. It also specifies bench tests for both the injection and measurement of transients and applies to all types of road vehicles separate from the propulsion systems.
ISO 7637-3 concerns electrical transient transmission by capacitive and inductive coupling from lines other than supply lines. The purpose of this standard is to specify bench test methods to assess the immunity of devices under test (DUT) to transient pulses that are coupled to lines other than supply lines in road vehicles with 12 V or 24V electrical systems. There are three test methods described in ISO 7637-3, capacitive coupling clamp (CCC) method, direct capacitive coupling (DCC) method, and Inductive coupling clamp (ICC) method. During testing, the test pulses can replicate both fast and slow transient disturbances that can be caused by switching inductive loads and relay contact bounce.
Avalon Test Equipment carries a variety of test equipment for rent from top manufacturers (EM Test and Teseq) to meet both ISO 7637-2 and ISO 7637-3 requirements. Test With Confidence®.
The UCS 200N100 by EM Test is in stock and ready to rent! The Ultra-Compact Simulator series for Automotive Transients unifies the capabilities of an EFT/Burst simulator, a Micro-pulse simulator, and the required coupling network into one box. Lab staff with over 20 years of technical experience. Customer service is our top priority. Immediate sales assistance along with same day shipments. Rent from Avalon Test Equipment.
Included in base system: HV Supply, Processor, Power Entry Module, RS232 Interface, IEEE Interface, CDN 5500 100A coupler, FT 5530 Fast Transient Generator, Autostar Software, traceable calibration certificate.
Manufactured exactly in accordance with the drawings and specifications of ISO 7637-3 for capacitively coupling the transients onto cables and wiring harnesses. With its characteristic impedance of 50 Ω , connected to the generator via a coaxial cable and terminated on the far side with a 50 Ω load resistor.
The PFS 200N Series Automotive Power Fail simulator is used to comply with standard requirements, mainly from vehicle manufacturers, to perform fast voltage dips ad drops (micro-interruptions). Some standards specify very fast rise and fall times below 1 microsecond an electronic switch.