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C7110C1001A, C7110D1009A WALL MODULES – PRODUCT DATA
The "Sensor Output" Mode
In the "Sensor Output" mode (analog), the Service LED (see
Fig. 12) is always dark.
Further, the CO
level indication LED of the C7110C1001A is
2
lit GREEN when the CO
level is below 1000 ppm, and
2
YELLOW when above 1000 ppm.
SERVICE LED IS
10 V
2 V
0 V
0
400
ppm
ppm
CO2 LEVEL
Fig. 13. Sensor output mode (analog)
In the "Sensor Output" mode (analog), terminal 2 delivers an
analog output of 0...10 V. You can then configure a
measuring range of either 400 to 2000 ppm or 400 to 3000
ppm, depending upon the position of the configuration jumper.
Due to ABC calibration to 400 ppm, given measured concen-
trations below 400 ppm, the output signal will gradually rise to
2 V.
EN0B-0735GE51 R0317
The "Relay Output" Mode
In the "Relay Output" mode (digital), the Service LED (see
Fig. 12) will either flash or be lit continuously, thus indicating
the actual Threshold Level setting.
Further, the CO
lit GREEN when the CO
YELLOW when above the threshold.
10 V
0 V
2000
(3000)
ppm
Fig. 14. Relay output mode (digital)
In the "Relay Output" mode (digital), terminal 2 delivers digital
output (of 0 / 10 V). You can then configure a "Threshold
Level (ppm)" of any value between MIN. = 500 and MAX. =
2000 (or 3000, if configuration jumper is in "3000 ppm") by
turning the configuration potentiometer (in the above
example, the Threshold Level has been set to 1000 ppm).
6
level indication LED of the C7110C1001A is
2
level is below the threshold, and
2
SERVICE LED IS
CO2 LEVEL
CO2 LEVEL
INDICATION LED
INDICATION LED
IS GREEN
IS YELLOW
500
1000
ppm
ppm
CO2 LEVEL
HYSTERESIS
(100 ppm)
2000
(3000)
ppm
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