Honeywell W7750A specifications Resistance Sensors, Sensor Type, Sensor Use

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Appendix E. Sensor Data for Calibration.

Resistance Sensors.

Sensor Type:

C7100A, (and C7170A)

Sensor Use:

Discharge air, Outdoor air

Table 29 lists the points for Sensor Resistance versus Temperature. Fig. 52 shows the graph of these points.

Table 29. Sensor Resistance Versus Temperature.

°F	Resistance Ohms
-40	2916.08
-30	2964.68
-20	3013.28
-10	3061.88
0	3110.48
10	3159.08
20	3207.68
30	3256.28
40	3304.88
50	3353.48
60	3402.08
70	3450.68
80	3499.28
90	3547.88
100	3596.48
110	3645.08
120	3693.68

SENSOR RESISTANCE VERSUS TEMPERATURE

	3750
	3700
	3650
	3600
	3550
	3500
	3450
OHMS	3400
	3350
	3300
	3250
	3200
	3150
	3100
	3050
	3000
	2950
	2900	-30 -20 -10	0	10 20 30 40 50 60 70	80	90 100 110 120
	-40
				DEGREES F		M11615

Fig. 52. Graph of Sensor Resistance versus Temperature.

Sensor Type:

C7031B1033, C7031C1031 C7031D1062, C7031F1018 (W7750B,C only), C7031J1050, C7031K1017

Sensor Use:

Return Air, Discharge Air Temperature

Table 30 lists the points for Sensor Resistance versus Temperature. Fig. 53 shows the graph of these points.

Table 30. Sensor Resistance Versus Temperature.

°F	Resistance Ohms
30	1956.79
35	1935.79
40	1914.79
45	1893.79
50	1872.79
55	1851.79
60	1830.79
65	1809.79
70	1788.79
75	1767.79
80	1746.79
85	1725.79
90	1704.78
95	1683.78
100	1662.78
105	1641.78
110	1620.78
115	1599.78
120	1578.78

SENSOR RESISTANCE VERSUS TEMPERATURE

	2000
	1950
	1900
OHMS	1850
	1800
	1750
	1700
	1650
	1600
	1550
	1500	35	40	45	50	55	60	65	70	75	80	85	90	95 100 105 110 115120
	30
							DEGREES F							M11614

Fig. 53. Graph of Sensor Resistance versus Temperature.

Sensor Type:

T7770A,B,C,D the T7560A,B and C7770A

Sensor Use:

Space Temperature and Discharge/Return Air Temperature

Table 31 lists the points for Sensor Resistance versus Temperature. Fig. 54 shows the graph of these points.

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