This equipment is specially designed for testing of the porosity of lacquer / wax which is internally coated on metallic (aluminum) tubes as per ISI std. The coated tube is filled with test-solution containing copper sulphate and copper electrode is immersed in this solution. The tube itself makes contact with the cathode and fixed small D.C. potential is then applied between the sliding top copper whose flow is proportional to the areas of the surface not covered by internal coating. In addition visual indication is provided by deposition of copper if coating is not continuous

The equipment is capable of giving reading direct on LED display. The equipment provides the required information quickly and reliably and is particularly suitable for quality control application. Assembled in a mild steel cabinet of size 27.5 cm x 22.5 cm x 17.5 cm. Finished in powder coated paint. The equipment is suitable for 230V AC 50 Hz.