Crowcon 40/40R Kullanım ve Bakım Talimatları Kılavuzu - Sayfa 8
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F-Gas Detector Instructions
4. Connect a 3-core cable from the control system to the appropriate
core cable from the control system to the appropriate V+ (12-28Vdc) , I
core cable from the control system to the appropriate
(analogue signal) and
logue signal) and GND (0V) terminals.
The cross section of the cables used should not exceed 1.5mm². A compression type cable
The cross section of the cables used should not exceed 1.5mm².
gland is fitted suitable for cable with a maximum diameter of 5mm.
gland is fitted suitable for cable with a maximum diameter of 5mm.
Crowcon strongly recomends installation using screened cables
Crowcon strongly recomends installation using screened cables to avoid signal
Crowcon strongly recomends installation using screened cables
interference.
3.2.
Analogue output: (0)4
Analogue output: (0)4-20mA
The analogue output of the transmitter offers two options for reading out the measuring data:
The analogue output of the transmitter offer
1. Current signal in the region of 0
Current signal in the region of 0-20mA, linear to the measuring value;
2. Current signal in the region of
Current signal in the region of 4-20mA, linear to the measuring value. (This option
also facilitates the easy detection of a broken wire or the failure of the sensor)
also facilitates the easy detection of a broken wire or the failure of the sensor)
also facilitates the easy detection of a broken wire or the failure of the sensor)
(Alternatively, the analogue output can be set as a
Alternatively, the analogue output can be set as a voltage signal using links JP4, JP5, JP6. More
information regarding this can be found in sub
regarding this can be found in sub-section 3.3)
The mode of the current signal can be selected using the jumper JP3:
The mode of the current signal can be selected using the jumper JP3:
1. Not connected
2. Connected
Caution: switching between current
switching between current modes with the link must only be carried out
when the power is turned off
turned off (disconnect supply voltage).
For the purpose of the analogue signal 0-20mA or 4-20mA, the transmitter can be regarded
For the purpose of the analogue signal 0
as a Current Source transmitter.
control system taking care to connect the V+, I and GND terminals to the appropriate
control system taking care to connect the V+, I and GND terminals to the ap
control system taking care to connect the V+, I and GND terminals to the ap
connections on the controller.
connections on the controller.
Once the power supply has been connected, the transmitter becomes active and is running
supply has been connected, the transmitter becomes active and is running
supply has been connected, the transmitter becomes active and is running
(see chapter 5).
20mA, linear to the measuring value;
20mA, linear to the measuring value. (This option
0-20mA (factory settings)
4-20mA
transmitter. The F-Gas detector can be connected directly to a suitable
Gas detector can be connected directly to a suitable
two options for reading out the measuring data:
must only be carried out
20mA, the transmitter can be regarded
A compression type cable
JP4, JP5, JP6. More
Figure
Figure
8:
Link
JP3
selection of current mode (4-
selection of current mode (4
20mA setting is shown)
20mA setting is shown)
Link JP3
Link
for