Rotronic CF5-D Bedienungsanleitung

Dokument

IMA 207

Rev

Page

1 (4)

Installation manual

CF5-D, CF5-D-Disp

CO2 / temperature transmitter for mounting in

ventilation ducts

456

Figure 1

1 Sampling probe 6 O-ring 29,2x3,53 (Factory supplied mounted in box)

2 Sealing gasket 7 PCB (Factory supplied mounted in box)

3 Largest locking nob 8 Snap-in lid

4 2 washers 9 PG9 cable entry bushing

5 2 screws 10 Temperature sensor (to be put into the sampling tube)

Dokument

IMA 207

Rev

Page

2 (4)

Mounting of CF5-D on to the duct.

Figure 2

10 Hole with 25 mm diameter

11 Temperature sensor with 110 mm cable mounted in the sampling probe

Mounting Instruction

Since there might be a substantial pressure difference in duct mounting applications,

it is essential to avoid ambient air from suction into the duct mounting box. For

correct function it is indispensable that the sealing of the box cover, the cable entry

bushings, the cable feed through and the duct entrance are absolutely tight. The duct

entrance may need extra sealing paste in order to prevent leakage. The PCB must

be handed carefully and protected from electrostatic discharge.

1) Electrical cable entry: The box has a factory mounted cable entry bushing in

dimension PG9. Never feed more than one cable through each cable entry

bushing, or else gas might leak through!

2) Mounting the tube: Drill a hole (10) with 25 mm diameter (or 1 inch) for the

sampling probe and two holes with 4 mm diameter for the screws (5) into the air

duct and mount the tube (1) with the gasket (2). The sampling probe should be

mounted with the largest locking knob on top. The unit can be mounted with the

air coming from the left or right.

3) Attaching the sensor box is made to the sampling probe by a snap-in bayonet

fitting. First, carefully stick the temperature probe (11) into the sampling probe.

(1). Orient the box onto the sampling probe so that the box upside is on the same

side as the largest locking knob (3). When the probe is fitted into the notches of

the box, then turn the box clockwise until stop (see Figure 1). Position 1 indicates

open where the box can be removed from the sampling probe. In position 2 the

box is locked to the probe.

If for some reason the PCB must be removed it must be handed carefully

and protected from electrostatic discharge! Normally, removing the PCB is

not required.

Dokument

IMA 207

Rev

Page

3 (4)

Electrical connections

The power supply has to be connected to and . is considered as system

ground. If the analogue output is connected to a controller the same ground reference

has to be used for the CF5-D unit and for the control system! Unless different

transformers are used, special precautions need to be taken.

PLEASE NOTE! The CF5-D signal and power supply

grounds are common.

NOTE! The same ground reference has to be

used for the CF5-D unit and for the control

system!

Connect the power after mounting. The analogue

output should be connected before measuring.

Connection

Terminal

Function

Electrical Data

Remarks

Power (+)

Power ground (-)

24 VAC/DC+ (+-20%), 3W

24 VAC/DC-

2W without output load

See note 1!

Out(1)

Out(2)

Analogue Output 1 (+)

Analogue Output 2 (+)

0-10 VDC or 0-20 mA,

2-10 VDC or 4-20 mA,

Same as Output 1

According to positions of

Out(1) and start point

jumpers.

See note 2!

According to positions of

Out(2) and start point

jumpers.

See note 2!

Note 1: The ground terminal is used as negative power supply DC input or AC phase

ground (halfwave rectifier).

Note 2:CF5-D can deliver a voltage or a current loop for Out(1) / Out(2). To change

between voltage and current output mode the hardware jumpers are used. There is one

jumper for Out(1) and one for Out(2), so that one output can be a voltage output and the

other a current output. Both, voltage output and current outputs, can have start points 0 % (0-

10 VDC or 0-20mA) or 20% (2-10 VDC or 4-20mA). The same start point is used for both

outputs. See the user manual.

Dokument

IMA 207

Rev

Page

4 (4)

Terminals and jumpers on CF5-D. The darker positions are default settings.

Dimensions

Dimensions of sensor in mm and inches

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