![](/images/new-backgrounds/1151576/151576229x1.webp)
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.
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CO2 Concentration PPM |
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| Sensor Voltage | |||||||||||||||||||
0 |
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| 0.00 |
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100 |
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| 0.50 |
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200 |
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| 1.00 |
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300 |
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| 1.50 |
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400 |
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| 2.00 |
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500 |
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| 2.50 |
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600 |
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| 3.00 |
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700 |
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| 3.50 |
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800 |
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| 4.00 |
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900 |
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| 4.50 |
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1000 |
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| 5.00 |
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1100 |
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| 5.50 |
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1200 |
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| 6.00 |
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1300 |
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| 6.50 |
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1400 |
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| 7.00 |
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1500 |
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| 7.50 |
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1600 |
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| 8.00 |
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1700 |
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| 8.50 |
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1800 |
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| 9.00 |
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1900 |
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| 9.50 |
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2000 |
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| 10.00 |
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| SENSOR VOLTAGE VERSUS CO2 CONCENTRATION | |||||||||||||||||||||
10 |
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9 |
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8 |
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7 |
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VOLTS |
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6 |
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5 |
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3 |
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2 |
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1 |
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0 |
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100 | 300 | 500 | 700 | 900 | 1100 | 1300 | 1500 | 1700 | 1900 | |||||
200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | |||||
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| PPM |
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| 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.
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Voltage to A/D |
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| Sensor Voltage |
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| 0.00 |
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| 0.00 |
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| 0.50 |
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| 0.25 |
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| 1.00 |
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| 0.50 |
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| 1.50 |
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| 0.75 |
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| 2.00 |
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| 1.00 |
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| 2.50 |
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| 1.25 |
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| 3.00 |
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| 1.50 |
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| 3.50 |
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| 1.75 |
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| 4.00 |
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| 2.00 |
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| 4.50 |
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| 2.25 |
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| 5.00 |
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| 2.50 |
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| 5.50 |
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| 2.75 |
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| 6.00 |
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| 3.00 |
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| 6.50 |
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| 3.25 |
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| 7.00 |
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| 3.50 |
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| 7.50 |
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| 3.75 |
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| 8.00 |
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| 4.00 |
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| 8.50 |
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| 4.25 |
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| 9.00 |
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| 4.50 |
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| 9.50 |
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| 4.75 |
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| 10.00 |
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| 5.00 |
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| SENSOR VOLTAGE VERSUS INPUT VOLTAGE TO A/D | ||||||||||||||||||||||||
5.00 |
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4.50 |
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4.00 |
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3.50 |
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VOLTS |
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3.00 |
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2.50 |
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A/D |
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2.00 |
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1.50 |
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1.00 |
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0.50 |
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0 |
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0 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | |||||||||||||||
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| VOLTS |
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| 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.
115 |
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