6. Electrical connection
6.1 Signal Transmitter
IP 67 and 19”
(terminal board
083H4260,
083H4253 &
083H4255)
Fluid Components Intl
Installation
Document 06EN003327 Rev. -
1) Mains supply 115 to 230 V a.c. from building installation Class II. A switch or circuit-breaker
(max. 15 A) shall be included in the building installation. It must be in close proximity to the
equipment and within easy reach of the OPERATOR, and it shall be marked as the
disconnecting device for the equipment.
2) Protective conductor terminal. Required cable min. AGW16 or 1.5 Cu.
The insulation between the connected mains supply and 24 V a.c./d.c. supply for the flowmeters, models 24 V a.c./d.c. shall at least be rated with double or reinforced insulation at
mains voltage.
For field wiring installation National Installation Code shall be met of the country, where the
flowmeters are installed.
Digital output
If the internal resistance of the loads exceeds 10K ohms, it is recommended to connect an
external 10K ohms load resistor in parallel to the load.
45 FlexCOR
™ Model CMF Series
Electrical connect.
Fluid Components Intl
6.2 Transmitter with
extended output’s
(only 19” version),
terminal board
083H4253 &
083H4255
Electrcical con.
Installation
FlexCOR
1) Mains supply 115 to 230 V a.c. from building installation Class II. A switch or circuit-breaker
(max. 15 A) shall be included in the building installation. It must be in close proximity to the
equipment and within easy reach of the OPERATOR, and it shall be marked as the
disconnecting device for the equipment.
2) Protective conductor terminal. Required cable min. AGW16 or 1.5 Cu.
The insulation between the connected mains supply and 24 V a.c./d.c. supply for the flowmeters, models 24 V a.c./d.c. shall at least be rated with double or reinforced insulation at
mains voltage.
For field wiring installation National Installation Code shall be met of the country, where the
flowmeters are installed.
Digital output
If the internal resistance of the loads exceeds 10K ohms, connect an external 10K ohm load
resistor in parallel to the load.
™ Model CMF Series 46
Document 06EN003327 Rev. -
6.3 Signal Transmitter
19” Ex-version
Fluid Components Intl
Installation
Document 06EN003327 Rev. -
The Transmitter must be installed in the safe area where as the sensor can be installed in the
hazardous area.
All cables and installations in hazardous areas must conform to the national code of practise.
The cables from the sensor must be kept apart from all other cables on the connection board.
Maximum cable length is 500 m.
If the converter becomes defective, the converter can only be serviced at Fluid Components Intl.
1) Mains supply 115 to 230 V a.c. from building installation Class II. A switch or circuit-breaker
shall be included in the building installation. It must be in close proximity to the equipment
and within easy reach of the operator, and it shall be marked as the disconnecting device for
the equipment.
2) Protective earth connected to PE terminal. Required cable min. AGW16 or 1.5 Cu.
Mains voltage terminals must be out of reach for operator to avoid any hazards.
Digital output
If the internal resistance of the loads exceeds 10K ohms, connect an external 10K ohm load
resistor in parallel to the load.
47 FlexCOR
™ Model CMF Series
Electrical connect.
Fluid Components Intl
6.4 Connections of
add-on modules
6.5 HART
®
Communication
When the add-on module has been installed, the electrical connections are available on terminal
rows 91-97 no matter the version.
The correct electrical connection can be seen in the documentation supplied with the add-on
module.
6.6 PROFIBUS PA
Electrcical con.
FlexCOR
™ Model CMF Series 48
Document 06EN003327 Rev. -
6.7 Transmitter
Compact Ex-d
Fluid Components Intl
Important
Document 06EN003327 Rev. -
Electrical connections are made through the front of the signal converter, in the terminal housing.
This housing is accessed by removing the front lid as described in Chapter 5.
The cover is retained via a wire. The terminal housing is equipped with 1 PG 13.5 EEx e gland and
1 PG 13.5 EEX "i" gland.
The mains cable is fed through the black PG gland (black indicates increased safety "e") located
in the left-hand side as viewed from the front.
The outputs are fed through the blue PG gland (the colour blue indicates intrinsically-safe circuit
"i") located on the right-hand side. According to the Ex document issued, use of other glands is
permitted provided that these are as a minimum EEx-approved in category "e".
The power supply terminals shall be from a safety isolating transformer.
Maximal cable core is 2.5 .
49 FlexCOR
™ Model CMF Series
Electrical connect.
Fluid Components Intl
6.8 Setting of active or
passive current output mode
Important
6.9 Installation
examples
Current output in passive
mode
The current output of the transmitter can
operate in either active or passive mode to
make elec-trical connection as easy as
possible. The default current output in the
transmitter is set to passive mode and must
be looped powered.
If an active mode is required, a jumper on the
transmitter PCB must be put in active position.
This is done by taking out the transmitter electronics, follow the instructions in section
5.2.11 or 5.2.12. Jumper position is shown
below.
Passive mode: Jumper in right position.
Active mode: Jumper in left position.
Be aware that in active mode the output shall be considered as a barrier output. The connection
is not safe when put in active mode and accidentally connected to a barrier intended for use in
passive mode.
Frequency/pulse output in
passive mode
Electrcical con.
HART output
FlexCOR
™ Model CMF Series 50
Document 06EN003327 Rev. -
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