Filter
Top Products
66
0
10
20
30
40
50
-20-100 1020304050
-4 -14 32 50 68 86 104122
°F
Temperature
Resistance (k)
500
400
300
200
100
0
25
50 75 100 120
77
122 167 212 248
°F
Temperature
Resistance (k)
<Thermistor feature chart>
Low temperature thermistors
• Thermistor <Outdoor pipe> (TH3)
• Thermistor <Low pressure saturated temperature> (TH6)
• Thermistor <Outdoor> (TH7)
0:[32°F] 15k'
10:[50°F] 9.6k'
20:[68°F] 6.3k'
25:[77°F] 5.2k'
30:[86°F] 4.3k'
40:[104°F] 3.0k'
Thermistor R0 = 15k' ± 3%
B constant = 3480 ± 2%
R
t =15exp{3480(
273+t
–
273
)}
11
t : :=(°F-32)/1.8
Thermistor R120 = 7.465k' ± 2%
B constant = 4057 ± 2%
R
t =7.465exp{4057(
273+t
–
393
)}
1
1
20:[68°F] 250k'
30:[86°F] 160k'
40:[104°F] 104k'
50:[122°F] 70k'
60:[140°F] 48k'
70:[158°F] 34k'
80:[176°F] 24k'
90:[194°F] 17.5k'
100:[212°F] 13.0k'
110:[230°F] 9.8k'
High temperature thermistor
• Thermistor <Discharge/Compressor> (TH4)
t : :=(°F-32)/1.8
200
150
100
50
0
25 50 75 100 110 125
77 122 167 212 230 257
ºF
Temperature
Resistance (k)
0:[32°F] 180k'
25:[77°F] 50k'
50:[122°F] 17k'
70:[158°F] 8k'
90:[194°F] 4k'
Thermistor R50 = 17k' ± 2%
B constant = 4170 ± 3%
R
t =17exp{4170(
273+t
–
323
)}
11
Medium temperature thermistor
Heatsink temperature thermistor (TH8)
t : :=(°F-32)/1.8
9-8. HOW TO CHECK THE COMPONENTS
0.5
2.5 5
363 725
MPa
PSIG
2.5
4.5
Vout (V)
PRESSURE
3
2
1
WHT
BLU
BLK
SENSOR
5V DC
GND
63HS
Vout
MICRO
COMPUTER
MULTI
CONTROLLER BOARD
- : 5V (DC)
- : Output Vout (DC)
<HIGH PRESSURE SENSOR>