In addition to precise measuring devices, precise calibration resistors are required for the calibration of testers. These calibration resistors serve to allow certain test currents to flow at various test methods and test voltages.
All calibration resistors for high test currents are installed in dissipator enclosures. Heat developing at high test currents and long-term tests can be dissipated well. This is the precondition for a good temperature stability. In addition to these good features, the resistors are designed with low capacities and low inductances.
All resistors for high test currents and low test voltages are designed in 4-wire configuration.
So that, taking into account the resistance value, appropriate conversions of the measured values are possible, all resistors are delivered with a calibration certificate containing the resistance value.