Emerson ROSEMOUNT 5300 Especificações Página 63

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Reference Manual
00809-0600-4026, Rev BA
December 2011
5-7
Rosemount Process Radar
Non-Intrinsically Safe Power Supply
Intrinsically Safe Power Supply
Type n Approvals: Non-Sparking / Energy Limited Power Supply
Load Limitations
The Field Communicator requires a minimum load resistance of 250 Ohms
within the loop in order to function properly. The maximum load resistance is
shown in the following diagram.
Load Resistance 250
Power
Supply
HART
Modem
Field Communicator
PC
Rosemount 5400 Series Radar Level Transmitter
Power
Supply
R
L
250
Approved
IS Barrier
Field Communicator
PC
IS Parameters:
U
i
=30 V, I
i
= 130 mA,
P
i
=1 W, C
i
=7.26 nF,
L
i
=0 H,
HART
Modem
Rosemount 5400 Series Radar Level Transmitter
Load Resistance 250
Power
Supply
HART
Modem
Field Communicator
PC
Rosemount 5400 Series Radar Level Transmitter
HART: U
n
=42.4 V
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