CU50铜电阻

1． 测温范围、允差 名称 型号 分度号 测温范围 等级 允许偏差 铂电阻 WZP Pt100 Pt10 -200~±650℃ A ±（0.15+0.02t） B ±0.30+0.005t 铜电阻 WZC Cu50 Cu100 -50~+150℃ ±（0.30+0.006t） 2.热响应时间 在温度出现阶跃变化时,热电阻的电阻值变化至相当于该阶跃变化的50%，所需要的时间称为热响应时间，用t0.5表示。

3.自热影响 铂电阻允许通过电流1mA，测量电流为5mA，由此产生的升温不大于0.3℃。

4.电阻温度系数（α）与标称值的偏差 名称 等级 α α 铂电阻 A 0．003851 ±0.000006 B ±0.000012 铜电阻 0．004280 ±0.000020 5.绝缘电阻 当周围空气温度15-35℃和相对湿度小于80%时热电阻绝缘电阻不小于100MΩ。

WZC系列元件 WZC型铜电阻是用高强度聚酯绝缘铜丝拴绕在棒形塑料或胶木骨架上。为防止铜丝松散以及提高绝缘性和机械强度，整个元件经过酚醛树脂浸渍处理。

Cu50型热电阻分度表 R（0℃）=50.00Ω工业铜热电阻（Cu50）分度表 T/℃ 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -40 41.400 41.184 40.969 40.753 40.537 40.322 40.106 39.890 39.674 39.458 -30 43.555 43.339 43.124 42.009 42.693 42.478 42.262 42.047 41.831 41.616 -20 45.706 45.491 45.276 45.061 44.846 44.631 44.416 44.200 43.985 43.770 -10 47.854 47.639 47.425 47.210 46.995 46.780 46.566 46.351 46.136 45.921 -0 50.000 49.786 49.571 49.356 49.142 48.927 48.713 48.498 48.284 48.069 T/℃ 0 1 2 3 4 5 6 7 8 9 0 50.000 50.214 50.429 50.643 50.858 51.072 51.386 51.505 51.715 51.929 10 52.144 52.358 52.572 52.786 53.000 53.215 53.429 53.643 53.857 54.071 20 54.285 54.500 54.714 51.928 55.142 55.356 55.570 55.784 55.988 56.071 30 56.426 56.640 56.854 57.068 57.282 57.496 57.710 57.924 58.137 58.351 40 58.565 58.779 58.993 59.207 59.421 59.635 59.848 60.062 60.276 60.490 50 60.704 60.918 61.132 61.345 61.559 61.773 61.987 62.201 62.415 62.628 60 62.842 63.056 63.270 63.484 63.698 63.911 64.125 64.339 64.553 64.767 70 64.981 65.194 65.408 65.622 65.836 66.050 66.246 66.478 66.692 66.906 80 67.120 67.333 67.547 67.761 67.975 68.189 68.403 68.617 68.831 69.045 90 69.259 69.473 69.687 69.901 70.115 70.329 70.544 70.726 70.972 71.186 100 71.400 71.614 71.828 72.042 72.257 72.471 72.685 72.899 73.114 73.328 110 73.542 73.751 73.971 74.185 74.400 74.614 74.828 75.043 75.258 75.472 120 75.686 75.901 76.115 76.330 76.545 76.759 76.974 77.189 77.404 77.618 130 77.833 78.048 78.263 78.477 78.692 78.907 79.122 79.337 79.552 79.767 140 79.982 80.197 80.412 80.627 80.834 81.058 81.273 81.788 81.704 81.919 150 82.134