Dokument
IMA 190
HFE507
Rev
5
Sid
30 (44)
Functional description
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 2 minutes delay after start-up.
Out(4) = error status OR OUT3 open, carbon monoxide concentration > 35 ppm OR
carbon dioxide concentration > 1500 ppm. There is a 2 minutes delay after start-up.
The control signal of air quality
Terminal
Standard
configuration
Standard settings
Standard function
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 M-SENSE III unit and for
the control system!
Out(1)
0-10VDC
0-100 ppm CO
Measuring signal carbon monoxide
Out(2)
0-10VDC
0-2000 ppm CO
2
Measuring signal carbon dioxide
Unmarked Signal Ground (-)
Connected to
via PTC fuse
Relay
Closed
Open
< 30 ppm CO
< 1400 ppm CO
2
> 35 ppm CO
> 1500 ppm CO
2
Air control Delay 2 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.
Out(4)
Open
collector
Open
Closed
No error detected AND
normal gas
concentrations
Error detected OR high
gas concentrations
Error status Delay 2 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
Default configuration of
M-SENSE III
.
~
+
