User guide

Dokument

IMA 201

Rev

Page

1 (4)

Installation manual

CF3-W-EU, CF3-W-EU-Disp

transmitter

CF3-W-EU CF3-W-EU - Disp

General

The IAQ-sensor product CF3-W-EU (sensor for wall mounting) is designed to

measure carbon dioxide (CO

) in rooms. Option - TR is prepared for temperature

measurements by the resistive temperature probe mounted by the user. The

temperature probe is potential free (floating). Option - Disp displays the measured

value in ppm (parts-per-million) on the LCD.

The units are designed for connecting to Direct Digital Control (DDC) with 0-10V or

2-10V signal inputs. The two parallel signal outputs OUT1 (0-10V) and OUT2 (2-10V

or 4-20 mA) give linear signal voltages or currents corresponding to the measuring

range.

The output OUT2 also indicates the status by setting the output voltage to 1V or the

output current to 2 mA when the sensor self-diagnostics detects any error.

To open the wall mounted housing

Figure 1. Closed housing seen from

above. The housing is opened by

pressing a screw driver on the locking

hook. The locking hook is then

released.

Press here to open.

PAGE 1
Installation manual CF3-W-EU, CF3-W-EU-Disp CO2 transmitter CF3-W-EU CF3-W-EU - Disp General The IAQ-sensor product CF3-W-EU (sensor for wall mounting) is designed to measure carbon dioxide (CO2) in rooms. Option - TR is prepared for temperature measurements by the resistive temperature probe mounted by the user. The temperature probe is potential free (floating). Option - Disp displays the measured CO2 value in ppm (parts-per-million) on the LCD.
PAGE 2
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-EU unit and for the DDC/signal receiver.
PAGE 3
+ ~ Figure 3. Enlarged picture of the PCB with the jumper set to current output (left position) + ~ Figure 4. Enlarged picture of the PCB with the jumper set to voltage output (right position) Self-diagnostics The system contains a complete self-diagnostic procedure that is executed automatically when the sensor is in operation. The yellow LED is lit if an error is found. Sensors with display show a wrench if an error is found.
PAGE 4
Dimensions 4(0,16) 28(1,10) 80(3,15) 100(3,94) 30(1,18) 4(0,16) 30(1,18) 60(2,36) Figure 5. The dimensions of the sensor in mm and (inches) Mounting of the sensor onto the wall Please use screws with screw head diameter less than 7,5 mm (0,295 inches) and screw head height less than 2,4 mm (0,094 inches).