Lakeshore 330 - Page 86

Lake Shore Model 330 Autotuning Temperature Controller User’s Manual
A-2 Appendix A
Table A-2. Thermocouple Curves - Chromel versus Gold / Iron
Breakpoint
Chromel vs. Au - 0.03 at % Fe Chromel vs. Au - 0.07 at % Fe
Number
Temp. (K) V
TC
(mV) Temp. (K) V
TC
(mV)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0.0
3.5
8.0
13.5
18.0
24.0
30.0
52.0
60.0
65.0
70.0
80.0
90.0
105.0
115.0
125.0
135.0
145.0
160.0
170.0
180.0
195.0
210.0
225.0
240.0
265.0
275.0
285.0
305.0
325.0
999.9
– 15.0000
– 4.6676
– 4.6067
– 4.5259
– 4.4571
– 4.3703
– 4.2869
– 3.9928
– 3.8830
– 3.8126
– 3.7411
– 3.5948
– 3.4436
– 3.2026
– 3.0374
– 2.8689
– 2.6957
– 2.5184
– 2.2468
– 2.0615
– 1.8725
– 1.5839
– 1.2905
– 0.9912
– 0.6847
– 0.1670
+ 0.0378
+ 0.2387
+ 0.6350
+ 1.0387
+15.0010
0.0
1.4
3.0
4.8
7.0
10.5
19.0
26.0
48.0
58.0
70.0
80.0
90.0
100.0
110.0
120.0
135.0
150.0
165.0
180.0
200.0
220.0
245.0
270.0
300.0
305.0
310.0
315.0
320.0
325.0
999.9
– 15.0000
– 5.2982
– 5.2815
– 5.2594
– 5.2285
– 5.1742
– 5.0315
– 4.9126
– 4.5494
– 4.3810
– 4.1733
– 3.9952
– 3.8132
– 3.6270
– 3.4370
– 3.2435
– 2.9477
– 2.6452
– 2.3372
– 2.0242
– 1.6004
– 1.1693
– 0.6232
– 0.0705
+ 0.5986
+ 0.7158
+ 0.8431
+ 0.9944
+ 1.1940
+ 1.4841
+15.0010
Table A-3. Thermocouple Curves - Chromel versus Copper
Breakpoint
Chromel vs Constantan Chromel vs Alumel Copper vs Constantan
Number
Temp. (K)
E V
TC
(mV)
Temp. (K)
K V
TC
(mV)
Temp. (K)
T V
TC
(mV)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0.0
3.0
5.6
9.0
13.5
19.0
25.0
32.0
40.0
50.0
60.0
70.0
80.0
90.0
105.0
120.0
135.0
150.0
170.0
190.0
210.0
235.0
260.0
290.0
320.0
350.0
385.0
420.0
460.0
475.0
999.9
-15.0000
– 9.8355
– 9.8298
– 9.8182
– 9.7956
– 9.7570
– 9.7013
– 9.6204
– 9.5071
– 9.3366
– 9.1345
– 8.9030
– 8.6475
– 8.3673
– 7.9064
– 7.3943
– 6.8386
– 6.2400
– 5.3831
– 4.4564
– 3.4702
– 2.1605
– 0.7666
+ 0.9948
+ 2.8428
+ 4.7704
+ 7.1149
+ 9.5570
+12.4425
+13.5573
+15.0010
0.0
3.0
6.0
10.0
47.5
19.5
25.0
32.0
40.0
48.0
58.0
65.0
75.0
85.0
95.0
105.0
120.0
135.0
150.0
165.0
185.0
205.0
230.0
260.0
295.0
350.0
395.0
460.0
510.0
575.0
999.9
-15.0000
– 6.4582
– 6.4551
– 6.4486
– 6.4376
– 6.4205
– 6.3951
– 6.3529
– 6.2913
– 6.2149
– 6.1022
– 6.0099
– 5.8634
– 5.6989
– 5.5156
– 5.3166
– 4.9881
– 4.6240
– 4.2267
– 3.7994
– 3.1866
– 2.5259
– 1.6463
– 0.5186
+ 0.8688
+ 3.1298
+ 4.9999
+ 7.6164
+ 9.6125
+12.2790
+15.0010
0.0
3.0
6.5
11.0
16.5
22.0
29.0
38.0
48.0
60.0
75.0
90.0
105.0
120.0
135.0
155.0
175.0
195.0
220.0
245.0
270.0
300.0
330.0
360.0
395.0
430.0
470.0
510.0
555.0
575.0
999.9
-15.0000
– 6.2584
– 6.2523
– 6.2401
– 6.2184
– 6.1888
– 6.1404
– 6.0615
– 5.9535
– 5.7995
– 5.5753
– 5.3204
– 5.0337
– 4.7194
– 4.3767
– 3.8781
– 3.3278
– 2.7342
– 1.9295
– 1.0586
– 0.1254
+ 1.0616
+ 2.3247
+ 3.6639
+ 5.3095
+ 7.0419
+ 9.1113
+11.2758
+13.8053
+14.9685
+15.0010