Although commonly referred to "Cleanliness Testing" it is in fact a measurement of ionic contamination. This test method has, for over 40 years, been acknowledged as an important Quality Assurance and Process Control tool in the manufacture of electronic circuit boards, components and assemblies.
The Contaminometer (CM Series) test systems were originally developed by Protonique, the business of industry guru Brian Ellis. They also featured in the early development programmes of "cleanliness measurement" carried out by the US Department of Defense at China Lake in the 1970s.
IPC-J-STD001 requires that assemblies be cleaned to a value of <1.5µg/cm2 of NaCl equivalence.
The CM Series utilise a solid gold measuring cell, ballistic amplifier and a vigorous pumping system to achieve superior measurement accuracy of <0.005mS/cm even at very low conductivity values. The CM Systems have been designed to avoid polarisation effects between electrodes as might occur when using DC test currents.
CONTAMINOMETERS from Gen3 Systems come in 5 different models and 5 different tank sizes because when selecting a Test System, it is important to use the smallest possible tank size for the circuit under test.