Honeywell W7750A specifications Sensor Current Versus Enthalpy volts Enthalpy mA, 113 74-2958

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Table 36 lists the points for Sensor Current versus Enthalpy (volts). Fig. 59 shows the graph of these points.

Table 36. Sensor Current Versus Enthalpy (volts).

Enthalpy (mA)	Sensor Current
4	1
5	1.25
6	1.49
7	1.74
8	1.99
9	2.24
10	2.49
11	2.74
12	2.99
13	3.24
14	3.49
15	3.74
16	3.98
17	4.23
18	4.48
19	4.73
20	4.98

SENSOR CURRENT VERSUS ENTHALPY (VOLTS)

	5.00
	4.75
	4.50
	4.25
(VOLTS)	4.00
	3.75
	3.50
	3.25
ENTHALPY	3.00
	2.75
	2.50
	2.25
	2.00
	1.75
	1.50
	1.25
	1.00
		5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
	4
									(MA)							M11607

Fig. 59. Graph of Sensor Current versus Enthalpy (volts).

See Fig. 60 for partial psychometric chart for a C7400A Solid State Enthalpy Sensor.

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