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Inspection methods for flexural test machine
Dec 17, 2016

Verification method

(1) switch on the power, powered on for 20 minutes. Because the instrument software with "zero" function, even if 10% zero drift, can clear find does not affect accuracy. Such as the zero-point drift too large, value over full range of 10% (not allowed press "reset" key), press component layout (figure v) zero, 50kN or 100kN stalls are just W1 (by the professionals of the company).
(2) the standard force-measuring instrument, check each document after temperature correction of deviation of actual comparison. If in 0.7% don't have to adjust if a deviation of more than 1%, then the instrument must be calibrated again. Calibration (100kN for example) press the "reset" button, make the force window exit 000.00;
First times by "calibration" key, rate window displayed for "C-0", at for determine 0 points; by "pump open" button and "rose" button, open sent valve, makes piston rose; second times by "calibration" key, rate window displayed for "C-20"; Dang measuring force ring displayed for 20kN Shi, third times by "calibration" key, rate window displayed for "C-40"; Dang measuring force ring displayed for 40kN Shi, fourth times by "calibration" key, rate window displayed for "C-60"; Dang measuring force ring displayed for 60kN Shi , Fifth times by "calibration" key, rate window displayed for "C-80"; Dang measuring force ring displayed for 80kN Shi, sixth times by "calibration" key, rate window displayed for "C-100"; Dang measuring force ring displayed for 100kN Shi, seventh times by "calibration" key, at "rose" key lamp out, system is for data processing, cannot on any key for operation, or has may effect data calibration.
After a few seconds, press the "down" key, when the force window appears "Kou 000.00", indicate the end calibration. Precision calibration 50kN files, in accordance with the above-mentioned methods on 10kN, 20kN, 30kN, 40kN, 50kN points calibration.

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