技术参数：
《一》美国PDT（圆周尺）是依据圆周算法，进而发展为一轻便，易于携带之大型园外径，测量器具
《二》小读值可达到0.01mm，精度±0.03mm（直径3600mm以下）
《三》读值方式，由如一般游标卡尺
《四》本体材质，301HY（不生锈弹簧钢）Stainless Spring Steel
《五》原厂校正仪器，可追塑N.I.S.T。（附原厂校正报告书）
PI TAPE METRIC LIST
Diameter Range | 1095 Spring Steel | 716 Stainless Steel | Blue Easy to Read Style | White Easy to Read Style |
15-50mm O.D. | PM000 | PM000SS | ------ | PM000WEZ |
25 -100mm O.D. | PM00 | PM00SS | ------ | PM00WEZ |
28 -200mm O.D. | PM0 | PM0SS | PM0EZ | PM0WEZ |
28 -300mm O.D. | PM02 | PM02SS | PM02EZ | PM02WEZ |
50 -300mm O.D. | PM03 | PM03SS | PM03EZ | PM03WEZ |
100-300mm O.D. | PM1 | PM1SS | PM1EZ | PM1WEZ |
50 -600mm O.D. | PM1SP | PM1SPSS | PM1SPEZ | PM1SPWEZ |
300 -600mm O.D. | PM2 | PM2SS | PM2EZ | PM2WEZ |
300 -900mm O.D. | PM2SP | PM2SPSS | PM2SPEZ | PM2SPWEZ |
600 -900mm O.D. | PM3 | PM3SS | PM3EZ | PM3WEZ |
600 -1200mm O.D. | PM3SP | PM3SPSS | PM3SPEZ | PM3SPWEZ |
900 -1200mm O.D. | PM4 | PM4SS | PM4EZ | PM4WEZ |
1200-1500mm O.D. | PM5 | PM5SS | PM5EZ | PM5WEZ |
1500-1800mm O.D. | PM6 | PM6SS | PM6EZ | PM6WEZ |
1800-2100mm O.D. | PM7 | PM7SS | PM7EZ | PM7WEZ |
公差
Diameter Range 28-3600mmO.D. 0.03mm
Diameter Range 3600-5400mm O.D. 0.09mm
Diameter Range 5400-7200mm O.D. 0.14mm
Diameter Range 7200-9000mm O.D. 0.18mm
Diameter Range 9000-10,800mm O.D. 0.23mm
Diameter Range 10,800-12,600mm O.D. 0.27mm
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