Special testing apparatus was built to study the effect of arc divided flow on the jet fluctuation and the inhibiting effect of new spray gun on the jet fluctuation.

The machine contain main functions of above four testing apparatus, it can automatic test leaking current, grounding electric resistance, dielectric intensity, resting voltage and print testing data.

By constructing testing diagnosis network system, based intercommunicate of apparatus, share of resource, reducing testing cost and increasing testing efficiency is attained.