Product data

25
www.rosemount.com
Rosemount 5300 Series
October 2014
Load Limitations
Maximum load resistance is determined by the voltage level of the external power supply, as
described by:
Note
For the Ex d case, the diagram is only valid if the HART load resistance is at the + side and if the -
side is grounded, otherwise the load resistance value is limited to 435 .
Non-Hazardous Installations
Maximum Load Resistance
Operating
Region
External Power
Supply Voltage
Intrinsically Safe Installations
Operating
Region
Maximum Load Resistance
External Power
Supply Voltage
Explosion-proof / Flameproof (Ex d) Installations
Maximum Load Resistance
External Power
Supply Voltage
Operating
Region
1400
200
400
600
800
1000
1200
10 16 20 30 40 50
1387
586
24
42.4
U
E
(V)
R(

1400
200
400
600
800
1000
1200
10 16 20 30 40 50
586
847
24
R(
U
E
(V)
10 20 30 40 50
1400
200
400
600
800
1000
1200
348
1148
24 42.4
U
E
(V)
R(
