MR252/MR252-M model is part of the Micro Prober family of high-speed open and short circuit testers for flexible and rigid circuit boards. Reportedly reduces test takt time; cuts footprint by about 30%. Sets upper limit to the size of target circuit boards. MR252-M can do two processes in parallel – continuity/insulation tests and marking of test results on the target boards – by putting on a separate stage a mechanism that marks test results on the circuit board. High-speed test capable of 500,000 to one million contacts per month. High-precision positioning with an accuracy of 5 µm plus or minus. Recognizes images captured with a CCD camera built in each testing head mounted on a moving arm; corrects positioning of the testing jig on X, Y and theta (tilt) axes. Test circuit unit is capable of four-terminal sensing.

Yamaha Fine Technologies Co, http://www.yamaha.co.jp/finetech/english/

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