California Instruments, a subsidiary of AMETEK Programmable Power, was founded in 1961 and later acquired by AMETEK in 2007. California Instruments provides AC power sources that are used in R&D, test and measurement, arbitrary waveform generation, avionics testing, inverter testing, bulk power and power conditioning applications, and more. They are best known for their AC programmable power sources, AC power supplies, AC power sources, and AC compliance testing units.
Advanced Test Equipment Rentals carries a variety of AC Power Supplies
and AC Load Banks by California Instruments. These power supplies, also referred to as an AC power source, are applied to a number of semiconductor, aerospace, alternative energy, and EMC testing, specifically DO-160. Another product of California Instruments are power sources for EMI/EMC testing
for Military Standards like MIL-STD-461C/D/E/F, CS106, CS115, RE101, RS101, MIL-STD-1399, MIL-STD-462 and more. They also manufacture Harmonics and Flicker
equipment for testing compliance to immunity standards like IEC 61000-4-8, IEC 61000-4-11, IEC 61000-4-13, etc.