Wcc3.exe screen descriptions, Analog input thermistor+ screen, Wcc iii technical guide 3-48 – WattMaster WM-WCC3-TGD-01B User Manual
Page 162
WCC3.EXE SCREEN DESCRIPTIONS
WCC III Technical Guide
3-48
Analog Input Thermistor+ Screen
Temperature / Resistance / Voltage Chart
for the BAPI™ (Alerton™) Standard
3K @ 77 Deg F Thermistor Sensor
Temp
(ºF)
Temp
(ºC)
Resistance
(Ohms)
Voltage @
Input (VDC)
-39
-39.44
96,941
4.526
-37
-38.33
90,108
4.494
-35
-37.22
83,804
4.461
-33
-36.11
77,983
4.426
-31
-35.00
72,607
4.387
-29
-33.89
67,637
4.350
-27
-32.78
63,041
4.308
-25
-31.67
58,789
4.267
-23
-30.56
54,851
4.222
-21
-29.44
51,173
4.176
-19
-28.33
47,795
4.128
-17
-27.22
44,663
4.078
-15
-26.11
41,756
4.028
-13
-25.00
39,059
3.975
-11
-23.89
36,553
3.921
-9
-22.78
34,225
3.864
-7
-21.67
32,061
3.806
-5
-20.56
30,067
3.748
-3
-19.44
28,157
3.684
-1
-18.33
26,414
3.622
1
-17.22
24,790
3.557
3
-16.11
23,277
3.493
5
-15.00
21,865
3.427
7
-13.89
20,549
3.360
9
-12.78
19,320
3.293
11
-11.67
18,173
3.223
13
-10.56
17,101
3.154
15
-9.44
16,091
3.082
17
-8.33
15,155
3.012
19
-7.22
14,280
2.940
Here are the three coeffi cients values for WattMaster Controls
standard 10K @ 77 Deg F type 4 Thermistor Sensor.
b0 =
0.001028340 (calculated as 0.0010283404
and rounded off to 0.001028340)
b1 =
0.000239398 (calculated as 0.00023939782
and rounded off to 0.000239398)
b3 =
0.0000001567 (calculated as 0.00000015669566
and rounded off to 0.0000001567)
Here are the three coeffi cients values for the BAPI™ compatible
Alerton™ standard 3K @ 77 Deg F Thermistor Sensor.
b0 =
0.0014062 (calculated as 0.00140628
and rounded off to 0.0014062)
b1 =
0.000236714 (calculated as 0.000236714
and rounded off to 0.00023671)
b3 =
0.0000001023 (calculated as 0.000000102331
and rounded off to 0.0000001023)
BAPI™ and Alerton™ are the trademarks of their respective
companies.