Rotronic CF5 Operating Manual

Dokument IMA 206
3
2
5
1
4
1
1 top part
Installation manual
CF5-W, CF5-W-Disp
Dismounting of the sensor
2 front part 3 wall plate 4 screw 5 label with settings inside the top part
Pull the top part upwards
Push the front part upwards while Fold the front part forwards and keeping the wall plate steady loose it from the hooks (#1)
Dokument IMA 206
A
B
The screw head diameter should be max 7,5 mm
max 2,5 mm
Mounting of the sensor
The wall plate is screwed onto the wall (A) Put the top tabs of the front part into the top holes of the wall plate. (B) Press the lower edge of the case onto the wall plate to latch
If the connection cables are drawn through a conduit the conduit must be sealed. Air of different temperature may otherwise disturb the temperature measurements.
The screw head height should be
+
~
The top part is pushed under the Terminals and jumpers on CF5-W. locking hooks of the wall plate The darker positions are default settings. and is secured with a screw Terminals and jumpers are located under the top part.
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 206
Terminal
Power ground (-)
24 VAC/DC-
via
PTC fuse
See note 1!
~
~
Electrical con nections
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-W unit and for the control system! Unless
different transformers are used, special precautions need to be taken.
PLEASE NOTE! The CF5-W signal and power supply grounds are common
PLEASE NOTE! The same ground reference ha s to be used f or the CF5-W
If possible keep the sensor powered up after mounting. Connect the analogue output before measuring.
unit and for the control system!
Connection
Out(1)
Analogue Output 1 (+)
Out(2)
Analogue Output 2 (+)
Not marked
Note 1: The ground terminal is used as negative power supply DC input or AC phase ground (half wave rectifier). The signal ground M, protected by a PTC resistor, is the same as power ground (permitting a ”3-wire” configuration). A single transformer may be used for the entire system.
Note 2: CF5-W 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 output can have start points 0 % ( 0­10 VDC or 0-20mA) or 20% (2-10 VDC or 4-20mA). The same start point is used for both outputs. See the function manual.
Function
Power (+)
Signal Ground (-)
Electrical Data
24 VAC/DC+ (+-
20%), 3W
0-10 VDC or 0-20
mA,
2-10 VDC or 4-20
mA,
Same as Output 1
Connected to
Remarks
2W without output load
See note 1!
According to positions o f Out(1) and start point jumpers. See note 2!
According to positions o f Out(2) and start point jumpers. See note 2 and 3!
Dokument IMA 206
120(4,72)
31(1,22)
83(3,26)
Mounting of the sensor onto
(0,1 inches)
Note 3: Please use voltage outputs for temperature measurements. The accuracy of temperature measurements is valid only for units configured in voltage outputs mode.
Dimensions and holes
Dimensions of sensor in mm and (inches)
4,2(0,16)
7,8(0,31)
2(0,08)
the wall Please use screws with screw
head diameter less than 7,5 mm (0,295 inches) and screw head height less than 2,5 mm
30(1,18)
30(1,18)
29,8(1,17)
30(1,18)
52,5(2,07)
25(0,98)
Dimensions of mounting plate in mm and (inches)
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