The Time Electronics 5069 INSCAL insulation tester calibration system is a precision, portable test instrument suitable for calibrating and testing general purpose insulation testers with test voltages up to 10kV. The Time Electronics 5069 INSCAL insulation tester calibration system has a basic accuracy of 1% with a range of 10MΩ to 100GΩ in 4 decades.

The Time Electronics 5069 INSCAL insulation tester calibration system is constructed in a high strength co-polymer plastic case and is powered by a rechargeable battery. This ensures full isolation from the mains and prevents stray leakage. Other features include fully shrouded safety connectors, a 0-2kV or 0-10kV display of open circuit voltage and a 0-2mA or 0-20mA display of short circuit current.