smoothness measurement instrument roughness tester

It is designed according to measuring (Bekk method) of ISO5627-1995 paper and cardboard smoothness and it is applied to measure smoothness of paper and cardboard, but not proper to measure the sheet above 0.5mm or with freer air permeability.

The meter borrows high accuracy vacuum sensor to test the vacuum, replace the mercury compression, so it is the flatness meter with no mercury. The meter use German vacuum equipment to vacuum the container in a short time, which is controlled by microprocessor. It has powerful data processing, not only can test a sample and automatically store the result, but also analyze group of specimens to show the average, maximum, minimum, standard drift and variation ratio. All the results can be stored and displayed by LED. In addition, it can print out the data in the requirement of experiment report

Main technical character

1. Glass board: donut, dimension: Big diameter 37.4±0.05mm, small diameter 11.3±0.05mm, valid dimensions 10±0.05cm²

2. Compression board: flat circle board with diameter 45mm, touching specimen with pressure (100±2Kpa)

3. Rubber pad: thickness 4±0.2mm, maximum variation of thickness±0.05mm, hardness 40±5 IRHD(International Rubber Hardness)

4. Small vacuum container: vol.(380±5)mL

Big vacuum container: vol. (38±1.5)mL

5. Test range: (1-9999)s; three stalls:(1~15)s,(15~300)s,(300~9999)s

6. Test stall chosen

1st stall: big vacuum container (380mL), vacuum 50.66kpa~48.00kpa
2nd stall: big vacuum container(38mL), vacuum 50.66kpa~48.00kpa

3rd stall: big vacuum container(380mL) vacuum: 50.66kpa~29.33kpa

7. Time precision: (1-300)s less than ±0.1s, (300~9999)s less than±1s

8. Printer: SP—E1610 mini-type

9. Power: AC220±10V 50Hz 1A