The surface stress meter ( Ref. ASM-200-FAP measures surface stress of tempered glass and the depth of the stress layer according to photoelastic technology by letting light spread along the glass surface. This machine is equipped with a PC, which can reduce measurement errors caused by the operators . Moreover, it is more convenient for the management of testing data. Thickness Gauge is optional to improve the measurement efficiency. Features Advanced non-destructive testing method : Photoelastic analysis Refractormeter determination of qualified or unqualified (OK/NG ) according to operators setting( in continuous testing mode ) quantity accumulation of OK and NG samples automatically offer master piece to achieve self-calibration at any time Automated testing to ensure detecting accuracy and stability Data saved by PC to facilitate data analysis, providing guide for quality control Optional single testing mode to save testing time Recommended manual testing mode when samples are not in good tempered condition Led Lamp with 10,000 hours serving time automatic dripping device and automatic suction device controlled by specific software has been integrated into the body to save installation space Specifications Stress Measurement Range (Mpa) 0-1000 Stress Measurement Accuracy (Mpa) �±20 Depth Measurement Range (m) 5-50 Depth Measurement Accuracy (m) ±0.2m Measurement Object chemically tempered glass Min detecting objects (mm) 12*7 Light source Special LED Wave length (nm) 590±10 IR of Prism 1.72 PC special OS Analysis software each designed for Corning Gorilla Glass 3 , Glass 4 Power AC220V 3A Air Source (Mpa) 1(clean air) Measuring Head size 300600 250mm Measuring Head Weight (Kg) 14