62
OCH707C
9-7. HOW TO CHECK THE COMPONENTS
<Thermistor feature chart>
Low temperature thermistors
• Thermistor <Liquid> (TH3)
• Thermistor <2-phase pipe> (TH6)
• Thermistor <Ambient> (TH7)
0°C
15 k
"
10°C
9.6 k
"
20°C
6.3 k
"
25°C
5.2 k
"
0°C 180 k
"
25°C
50 k
"
50°C
17 k
"
70°C
8 k
"
90°C
4 k
"
30°C
4.3 k
"
40°C
3.0 k
"
Thermistor R0 = 15 k
"
± 3%
B constant = 3480 ± 2%
R
t
=15exp{3480(
273+t
–
273
)}
1
1
Thermistor R50 = 17 k
"
± 2%
B constant = 4150 ± 3%
R
t
=17exp{4150(
273+t
–
323)}
1
1
Thermistor R120 = 7.465 k
"
± 2%
B constant = 4057 ± 2%
R
t
=7.465exp{4057(
273+t
–
393)}
1
1
Medium temperature thermistor
• Thermistor <Heatsink> (TH8)
20°C 250 k
"
30°C 160 k
"
40°C 104 k
"
50°C
70 k
"
60°C
48 k
"
70°C
34 k
"
80°C
24 k
"
90°C
17.5 k
"
100°C
13.0 k
"
110°C
9.8 k
"
High temperature thermistor
• Thermistor <Discharge> (TH4)
• Thermistor <Comp. surface> (TH33)
0
10
20
30
40
50
-20 -10 0
10 20 30 40 50
Temperature (°C)
Resistance (k
"
)
200
150
100
50
0
25
50
75
100
125
Temperature (°C)
Resistance (k
"
)
500
400
300
200
100
0
25
50
75
100
120
Temperature (°C)
Resistance (k
"
)
Summary of Contents for PUZ-M100VKA
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