Honeywell W7750A ユーザーズマニュアル
EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
111
74-2958—1
Table 31. Sensor Resistance Versus Temperature.
Fig. 54. Graph of Sensor Resistance versus Temperature.
Sensor Type:
T7770B,C 10K ohm setpoint potentiometer (Relative)
T7770B,C 10K ohm setpoint potentiometer (Relative)
Sensor Use:
Offset Setpoint Temperature
Offset Setpoint Temperature
Table 32 lists the points for Sensor Resistance versus
Temperature. Fig. 55 shows the graph of these points.
Temperature. Fig. 55 shows the graph of these points.
Table 32. Sensor Resistance Versus Temperature.
Fig. 55. Graph of Sensor Resistance versus Temperature.
Sensor Type:
T7770B,C 10 K ohm setpoint potentiometer (Absolute)
T7770B,C 10 K ohm setpoint potentiometer (Absolute)
Sensor Use:
Direct Setpoint Temperature
Direct Setpoint Temperature
Table 33 lists the points for Sensor Resistance versus
Temperature. Fig. 56 shows the graph of these points.
Temperature. Fig. 56 shows the graph of these points.
Table 33. Sensor Resistance Versus Temperature.
°F
Resistance Ohms
40
9961.09
45
9700.90
50
9440.72
55
9180.53
60
8920.35
65
8660.16
70
8399.98
75
8139.79
80
7879.61
85
7619.42
90
7359.24
95
7099.06
100
6838.87
°F Above and Below Setpoint
Resistance Ohms
-9
8877.41
-8
8832.14
-7
8786.87
-6
8741.60
-5
8696.33
TEMPERATURE (DEGREES)
o
F
30
40
50
60
70
80
90
100
110
0
10
20
30
40
RESISTANCE (OHMS)
20K OHM AT
77
77
o
F (25
o
C)
80K
70K
60K
50K
40K
30K
20K
10K
o
C
M5874A
-4
8651.06
-3
8605.79
-2
8560.52
-1
8515.25
0
8469.98
1
8424.71
2
8379.45
3
8334.18
4
8288.91
5
8243.64
6
8198.37
7
8153.10
8
8107.83
9
8062.56
°F
Resistance Ohms
55
8877.42
60
8741.62
65
8605.82
70
8470.02
75
8334.22
80
8198.42
85
8062.62
°F Above and Below Setpoint
Resistance Ohms
8000
8100
8200
8300
8400
8500
8600
8700
8800
8900
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
OHMS
DEGREES F
SENSOR RESISTANCE VERSUS TEMPERATURE
M11609