Pepperl+Fuchs KFD2-HLC-Ex1.D Series Manual page 18

HART Loop Converter KFD2-HLC-Ex1.D(.**)
Mounting and Installation
3.4.1 Input Connection (Field Circuit)
Danger!
EN
Explosion hazard from wrong separation distances
If you do not observe the minimum separation distance between 2 intrinsically safe circuits,
this can lead to added currents or voltages. This can result in a current/voltage flashover
generating sparks. The sparks can ignite the surrounding potentially explosive
atmosphere.
Ensure that you observe all separation distances between 2 adjacent intrinsically safe
circuits according to IEC/EN 60079-14.
Connecting the Field Circuit
1.
2.
The intrinsically safe field circuit may be routed in the hazardous area with connection lines
in accordance with DIN EN 60079-14. You can connect the following field devices:
1.
2.
3.
16 - EN
Connect the field circuit to the blue terminals.
Observe the tightening torque of the terminal screws. The tightening torque is
0.5 Nm to 0.6 Nm.
any separately supplied HART current circuit with transmitter or positioner connected in
parallel
Connection to terminals 2 and 3
a HART-capable active current source, e. g., a separately supplied HART measuring
transmitter
Connection to terminals 2 and 3 with bridge between terminals 5 and 6
a 2-wire HART measuring transmitter, e. g., HART measuring transmitter with an analog
output signal of 4 mA to 20 mA
The HART measuring transmitter is supplied by the isolated barrier
Connection to terminals 1 and 3 with bridge between terminals 4 and 5