Dokument
IMA 203
Rev
1
Page
1 (4)
Installation manual
CF3-W-US, CF3-W-US-Disp
CO
2
transmitter
CF3-W-US CF3-W-US-Disp
General
The IAQ-sensor product CF3-W-US (sensor for wall mounting) is designed to
measure carbon dioxide (CO
2
) in rooms. Option - Disp displays the measured CO
2
value in ppm (parts-per-million) on the LCD.
The units are designed for connecting to Direct Digital Control (DDC). The two
parallel signal outputs OUT1 (0-10 V) and OUT2 (2-10 V or 4-20 mA) give linear
signals corresponding to the measuring range.
The OUT2 output also indicates the status by setting the output voltage to 1 V or
current to 2 mA when the sensor self-diagnostics detects any error.
To open the wall mounted housing
Figure 1
Closed housing seen from the top and the side. The housing is opened by inserting a screw
driver and pushing to the front side of the housing. The locking hooks will then be released.
Front
Wall
Insert screw driver
Push upwards to open
Front
Wall
