Microcomputer Control Tensile Stress Relaxation Testing Machine

Product Description

Microcomputer Control Tensile Stress Relaxation Testing MachineFeatureAlgorithm to predict specimen stress relaxation performance after 1000 hours (or any specified value in hours), with the option of single or double logarithm. Capable of predicting with standard specimen data or real-time collected data (Suggested). Integrated with an extensive specimen library to improve the precision and reliability of testing results.Splitting the sampling stage into four sub-stages and applies different sampling cycles in consideration of the logarithm characteristic of time, improving the reliability of data greatly.Support for 100-hour tests. Test time can be assigned at will. E.g. 24-hour test.Automatically retrieves test data and inspects the stress relaxation performance of the specimen. (e.g. stress relaxation rate, relaxed stress, relaxation rate, etc.)Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.As many as 20 layers of sensor linear compensation, elevates the precision of the instruments to the next level.Comparing a framed structure with a column-based structure, the framed structure has better stiffness that is over 2.5 times greater than the column-based structure.Closed test space design reduces the temperature shift resulted from the air flow at the air-conditioner vent, improves the temperature uniformity and stability in the test space.Pre-installed with reaction frame, provides more convenience for the load transducer to calibrate.Real-time drawing of curves of remaining load with time, or temperature with time.Technical SpecificationsCapacity : 300kNLoad measurement range: 6300kNLoad measurement accuracy: 0.5%Load resolution: 1/500000 of Max capacity, no stepping, no change in full scaleLoad transducer creep : 0.03%F.S.Temperature effect on load transducer sensitivity : 0.03%F.S./10Deformation measurement range: 10 mmDeformation measurement accuracy : 0.5%Grip displacement measurement accuracy : 0.5%Grip speed adjustment range: 80mm/minGrip speed accuracy : 0.5%Loading speed adjustment Range: 0.01% 2.5%F.S./sLoading speed controlling accuracy : 0.5%Temperature measurement resolution : 0.1Valid tensile travel: 100 mm Test spaceMax distance between left/right grip: 2450 mmSpecimen dimensionsDiameter for steel strand: 12.7 mm, 15.4 mm, length 3.2 mDiameter for PC steel rod: 16mm, length 3.2 mPower supply: 1kW/AC220V/50HzWeight: Approx. 1600 kg