CableEye 4-Wire Calibration Verification Board | Cable & Harness Testers
The CB52 is intended for periodic calibration verification of the Kelvin 4-wire resistance measurement module – an optional, add-on module that may be purchased with any new hipot system, or added to an existing high voltage tester as an upgrade. To ensure that 4-wire resistance measurements remain accurate, CAMI recommends running the verification check every quarter. A 4-wire measurement module that is out of calibration will give inaccurate results. Some (maybe all) resistance measurements will be incorrect. Consequently, it may Pass what should Fail and, conversely, Fail what should Pass. In other words product yield will be contaminated due to unreliable measurements.