The TM-220 is a thermistor designed exclusively for biomedical applications in the range of 5° C to 45°C. Although low in cost, these highly stable, precision thermochips provide the reliability, tight interchangeable tolerances, geometries, and fast response times required.. The resistance of the TM-220 changes depending on the temperature. The IX-TA-220 has a built-in circuit that measures the resistance of the sensor and LabScribe does a non-linear conversion to temperature.
For better accuracy the TM-220 can be calibrated in software, using units conversion.
Specifications
Range
5° C to 45°C.
Diameter of sensor
0.07"
Response time
15 sec in still air
2 sec in still water
Accuracy
0.5°C.
TM-220 Temp Vs Resistance
TEMP
TM-220
°C
OHMS
0
32650.5
1
31032.1
2
29499.9
3
28052.4
4
26684.6
5
25391.2
6
24168.2
7
23011.2
8
21916.3
9
20879.8
10
19898.3
11
18968.6
12
18087.6
13
17252.6
14
16460.9
15
15710
16
14997.7
17
14321.6
18
13679.8
19
13070.4
20
12491.6
21
11941.6
22
11418.9
23
10922
24
10449.5
25
10000
26
9572.32
27
9165.29
28
8777.79
29
8408.68
30
8057.31
31
7722.43
32
7403.29
33
7098.42
34
6808.36
35
6531.31
36
6265.75
37
6016.47
38
5776.05
39
5546.53
40
5327.34
41
5117.97
42
4917.94
43
4726.77
44
4543.91
45
4369.33
46
4200.84
47
4040.81
48
3889.51
49
3743.17
50
3603.1
Lab Exercises
HE-01: Metabolism and Thermal Response to Exercise
HE-08: Regulation of Body Temperature and Respiratory Exchange Ratio (RER)
HP-04: Skin Temperature, Stress, Calming and Embarrassment
HP-12: Rubber Hand Illusion
HP-14: Hypothesis-driven Biofeedback Lab/Research Study
