Senseair aSENSE M III Bedienungsanleitung
Senseair
CO2-Sensor
aSENSE M III
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CO2 / CO sensor with built-in general purpose controller
Figure 1 aSENSE mIII for wall mounting and ventilation duct mounting
General
The IAQ-sensor product aSENSE mIII is used to measure indoor air carbon dioxide and carbon
monoxide concentrations. It is a very flexible controller with programmable outputs for both relay- and
linear control of e.g. mixed air dampers, humidifier and fans. The measured values are shown on the
display.
The unit can alternatively be connected to common VAV (Variable Air Volume) controllers, or Direct
Digital Control (DDC). The linear output functions are pre-programmed. All functions can be modified
from a PC with the software UIP (version 4.3 or higher) and the RS232 communication cable.
aSENSE mIII
User Manual
FUNCTIONAL DESCRIPTION
aSENSE mIII is delivered pre-programmed (see description below). With the free software UIP4.3 (or
later versions) and Senseair’s standard communication cable for PC, A232 Cable, the user can adjust
the product to his/hers application by, for example, changing the measurement ranges of the linear
outputs, modify the set points of the alarm outputs, invert outputs and also reconfigure the functions
and the logic that controls the outputs.
OUT1 = CO
Start point
OUT2 = CO2
OUT3 =
Gas alarm relay
OUT4 = Sum alarm
Figure 2 Print screen of UIP4.3 PC work space of aSENSE mIII where the pre-set functions can easily
be redefined. The four outputs (far right) are here arranged in rows together with the function
blocks that control the output.
Internal CO and CO2 recorder samples
data continuously every 20 minutes.
After 13 days and 8 hours the storage
memory is full and the oldest data are
eventually overwritten one by one. The
data storage is secured every four hours.
In case of power failure the sampled
data of the latest four hours at most will
be lost. The other values can be studied
with the software UIP4.3 and exported to
a text file for further treatment in e.g. MS-
EXCEL
Figure 3 Recorded readings
-
10,0
20,0
30,0
40,0
50,0
60,0
70,0
80,0
90,0
100,0
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
16:00
20:00
00:00
04:00
08:00
12:00
300
400
500
600
700
800
900
1 000
1 100
1 200
1 300
CO (ppm)
CO2(ppm)
CO (ppm)
CO2(ppm)
Standard configuration:
Out(1) is carbon monoxide output, Out(2) is carbon dioxide output and Out(3) is relay output. Out(4) is
error status OR Out(3) is open.
Out(1) = measuring signal for carbon monoxide concentration
Out(2) = measuring signal for carbon dioxide concentration
Out(3) = ON/OFF of demand of air quality. The relay is open in alarm situations and at power loss.
NOTE! There is a two minutes delay after start-up.
Out(4) = error status OR Out(3) open, carbon monoxide concentration > 35 ppm OR carbon dioxide
concentration > 1500 ppm. There is a two minutes delay after start-up.
Figure 4 The control signal of air quality
# in
figure 4
Terminal
Standard
configuration
Standard settings
Standard function
1
2
Power (+)
Power ground (-)
24 VAC/DC+
(+-20%), 3W
24 VAC/DC-
2W without output load
The same ground reference has to
be used for the aSENSE mIII unit
and for the control system!
3
Out(1)
0-10VDC
0-100 ppm CO
Measuring signal carbon monoxide
4
Out(2)
0-10VDC
0-2000 ppm CO2
Measuring signal carbon dioxide
5
Unmarked
Signal Ground (-)
Connected to G0 via PTC fuse
6
7
Relay
Closed
Open
< 30 ppm CO
< 1400 ppm CO2
> 35 ppm CO
> 1500 ppm CO2
Air control Delay two minutes after
start.
The green LED is lit
The relay is open in alarm situations
and at power loss. The red LED is lit
and the green is not lit.
8
Out(4)
Open
collector
Open
Closed
No error detected
AND normal gas
concentrations
Error detected OR
high gas
concentrations
Error status Delay two minutes after
start.
The red LED is lit if an error OR high
gas concentrations are detected. If
an error is detected also the yellow
LED is lit
Table I. Default configuration of aSENSE mIII.
~
+
Produktspezifikationen
| Marke: | Senseair |
| Kategorie: | CO2-Sensor |
| Modell: | aSENSE M III |
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