EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Sensor Type:

T7242 or equivalent.

Sensor Use:

CO2 concentration.

Table E-9 lists the points for Sensor Voltage versus CO2 concentration. Fig. E-9 shows the graph of these points.

 

Table E-9. 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

VOLTS

10

9

8

7

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

Fig. E-9. Graph of Sensor Voltage versus CO2 concentration.

Sensor Type:

Third party (2 to 20V).

Sensor Use:

Monitor voltage.

Table E-10 lists the points for Sensor Voltage versus input Voltage to A/D. Fig. E-10 shows the graph of these points.

Table E-10. Sensor Voltage Versus Input Voltage To A/D.

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Image 78
Honeywell W7761A specifications Table E-9. Sensor Voltage Versus CO 2 Concentration, CO 2 Concentration PPM Sensor Voltage