Beijing TIME 5100 - 3.1.9 Upper and lower limit setting; 4 Using; 4.1 Preparation before using; 4.1.1 Preparation for sample surface

10
3.1.7 Display：128×32 dot matrix LCD；
3.1.8 Data memory：270 average data in 9 files；
3.1.9 Upper and lower limit setting：same to measuring range；
3.1.10 Power：AAA（7#）1.5V 2pc；
3.1.11 Continual working time ：about 150 hours（without backlight）；
3.1.12 Communication interface：USB2.0.
3.2 Dimension and weight
3.2.1 Dimension:155mm×55mm×25mm
3.2.2 Weight: about 166g.
4 Using
4.1 Preparation before using
4.1.1Preparation for sample surface
Preparation for sample surface should conform to the relative requirement in figure 3.
●In the preparation process for sample surface, the hardness effect of being heated or cold processing on the
surface of sample should be avoided；
●Too big roughness of the measured surface could cause measure error. So, the measured surface must be
metallic luster, smoothing and polish, without oil stain；