Dokument
IMA 203
Rev
1
Page
3 (4)
Electrical connections
The power supply has to be connected to
and
.
is considered as system
ground. The same ground reference has to be used for the CF3-W-US unit and for the
DDC/signal receiver.
PLEASE NOTE! The same ground reference has to be
used for the
CF3-W-US
unit and for the control system!
Terminal
Function
Electrical data
Standard settings
Settings of
this sensor
Power (+)
Power
ground (-)
24 VAC/DC+
(+-20%), 2W
24 VAC/DC-
System voltage
reference
OUT(1)
OUT(2)
Analogue
output 1 (+)
Analogue
output 2 (+)
0-10 VDC
2,0…10,0 VDC or
4,0 … 20,0 mA
0,9…1,6 VDC or
1.5 to 2,5 mA
0 VDC or 0mA
0-2000 ppm CO
2
0-2000 ppm CO
2
Status = ERROR
Status = NOT
READY
Table I. Connections of the main terminal of
CF3-W-US
Figure 5 The CF3-W-US PCB seen from the front and the back. The OUT2 jumper is in the default
position (voltage)
~
+
~
+
