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产品名称: WZC系列铜电阻元件
产品型号: cu50.cu100.
产品展商: 其它品牌
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简单介绍
本公司提供生产的WZ系列热电阻严格按照JB/T8622-1997技术要求生产，其分度号PT1000、PT500、PT200、PT100、PT10、CU50、CU100均符合国际标准。
WZC系列铜电阻元件
的详细介绍
热电阻的工作原理：在温度的作用下，电阻丝的电阻随之变化而变化。可用于测量-200℃～﹢800℃范围内的温度。其优点是：偏差极小。由于它的良好电输出性能，热电阻可为显示仪、记录仪、调节仪、扫描仪及电脑提供**的输入值。
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，*大测量电流为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
|
|
|
|
|
|
|
|
|
|