The tensile testing machine test, due to the use of electric loading, the pointers go faster and inertia effects after the shutdown still not be readily stopped at the test point on the required and accurate data can not be read, causing the dial pointer.Generally use manual loading test, so that on the one hand will produce uneven loading speed, on the other hand will also have a standstill, interval or pointer jumping phenomenon.Appears in the verification process of the tensile testing machine, overshoot backhaul reading reading process with error detection data.Therefore, in the detection process is repeated three times, recording the detection data will be quite different.Measures to solve this problem is: read the dial shows value and bade wheel control personnel must undergo a rigorous training in order to achieve close coordination so that the rotation of the hand wheel to stop and reading at the same time.Tensile testing machine verification process must be two people with the good, as far as possible uniform rotation of the hand wheel, uniform loading slow dial pointer stationary immediate readings in the required verification point, in order to exclude the tensile testing machine test generated in the process due to the influence of the loading speed detecting prospective data differences.
　　We believe that the metrological verification of the tensile testing machine personnel must have the basic conditions for the correct operation of the test machine, and strictly accurate implementation of the verification procedures, in order to effectively guarantee the metrological verification and inspection traceability data is accurate and reliable.
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