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4.3.5
Power supply
The transmitter operates on 12-42.4 Vdc (12-30 Vdc in Intrinsically Safe installations) at
the transmitter terminals.
4.3.6
Load limitations
For HART
®
communication, a minimum loop resistance of 250 Ω is required. Maximum
loop resistance is determined by the voltage level of the external power supply.
Figure 4-3: Load Limits
%
$
Maximum Loop Resistance = 43.5 * (External Power Supply Voltage - 12)
A. Loop Resistance (Ohms)
B. External Power Supply Voltage (Vdc)
Electrical installation
Reference Manual
February 2020
00809-0100-4408
76
Reference Manual
Summary of Contents for Rosemount 5408
Page 4: ...4 ...
Page 8: ...Contents Reference Manual February 2020 00809 0100 4408 viii Reference Manual ...
Page 10: ...Introduction Reference Manual February 2020 00809 0100 4408 10 Reference Manual ...
Page 20: ...Transmitter overview Reference Manual February 2020 00809 0100 4408 20 Reference Manual ...
Page 72: ...Mechanical installation Reference Manual February 2020 00809 0100 4408 72 Reference Manual ...
Page 100: ...Operation Reference Manual February 2020 00809 0100 4408 100 Reference Manual ...
Page 240: ...Product certifications Reference Manual February 2020 00809 0100 4408 240 Reference Manual ...
Page 242: ...Product certifications Reference Manual February 2020 00809 0100 4408 242 Reference Manual ...
Page 244: ...Product certifications Reference Manual February 2020 00809 0100 4408 244 Reference Manual ...
Page 246: ...Product certifications Reference Manual February 2020 00809 0100 4408 246 Reference Manual ...
Page 248: ...Product certifications Reference Manual February 2020 00809 0100 4408 248 Reference Manual ...