Honeywell W7750A specifications Sensor Voltage Versus Input Voltage To A/D Voltage to A/D

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

Sensor Use:

CO2 concentration

Table 37 lists the points for Sensor Voltage versus CO2 concentration. Fig. 62 shows the graph of these points.

Table 37. Sensor Voltage Versus CO2 Concentration.

CO2 Concentration PPM			Sensor Voltage
0		0.00
100		0.50
200		1.00
300		1.50
400		2.00
500		2.50
600		3.00
700		3.50
800		4.00
900		4.50
1000		5.00
1100		5.50
1200		6.00
1300		6.50
1400		7.00
1500		7.50
1600		8.00
1700		8.50
1800		9.00
1900		9.50
2000		10.00
	SENSOR VOLTAGE VERSUS CO2 CONCENTRATION
10
9
8
7
VOLTS
6
5
4
3
2
1
0

100	300	500	700	900	1100		1300		1500		1700		1900
200	400	600	800	1000		1200		1400		1600		1800		2000
					PPM								M11611

Table 38 lists the points for Sensor Voltage versus input Voltage to A/D. Fig. 63 shows the graph of these points.

Table 38. Sensor Voltage Versus Input Voltage To A/D.

Voltage to A/D							Sensor Voltage
		0.00							0.00
		0.50							0.25
		1.00							0.50
		1.50							0.75
		2.00							1.00
		2.50							1.25
		3.00							1.50
		3.50							1.75
		4.00							2.00
		4.50							2.25
		5.00							2.50
		5.50							2.75
		6.00							3.00
		6.50							3.25
		7.00							3.50
		7.50							3.75
		8.00							4.00
		8.50							4.25
		9.00							4.50
		9.50							4.75
		10.00							5.00
	SENSOR VOLTAGE VERSUS INPUT VOLTAGE TO A/D
5.00
4.50
4.00
3.50
VOLTS
3.00
2.50
A/D
2.00
1.50
1.00
0.50
0
0		100	200	300	400	500		600	700	800	900		1000
						VOLTS						M11612

Fig. 63. Graph of Sensor Voltage versus input Voltage to

A/D.

Fig. 62. Graph of Sensor Voltage versus CO2

concentration.

Sensor Type:

Third party (2 to 10V)

Sensor Use:

Monitor voltage

Sensor Type:

Third party

Sensor Use:

Sensor Voltage (Vdc) /Pressure (Inw) 2 to 10V, 0 to 5 inw (1.25 kPa)

Table 39 lists the points for Sensor Voltage (Vdc) versus Pressure (Inw). Fig. 64 shows the graph of these points.

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