1. These two frequencies help to obtain higher test coverage. High test frequencies can be used for surface detection. Low frequencies have high sensitivity to subsurface defects. With the development of tubesheet functions, EEC-35++ can achieve good results in defect detection and wall thickness measurement of in-service tubes (Cu, Ti, Al, etc.).

2. Mixed devices for nuclear, power, petrochemical and aerospace sectors can suppress interference signals caused by baffles, indentations, sediments and cold working. Users can store test data and parameters conveniently by using full digital technology design. Readout for local testing


● Mixing function to suppress noise signal with certain frequency, like mounting plate

● Tube sheet function to simulate the heat exchanger tubing layout, and to mark the testing status and testing result

● Connect with multiplexed probe sensors and test with multiplexed frequencies

● With built-in lithium battery which can work for 15 hours per charge

● Fast digital / analogue electric balance

● Non-equiamplitude phase alarm/amplitude alarm

● Automatic/manual amplitude and phase measure

● Store large testing data

● Real-time memorize multi-track eddy current signal

● A-scan display, can be extended to C-scan display.

● Digital filtering

● Colored real-time display of x-y impedance plane and strip chart signals

● With multiple frequency configuration analysis function

● Rectangular coordinates and polar coordinates background can be selected