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