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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
Содержание Rosemount 5408
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Страница 8: ...Contents Reference Manual February 2020 00809 0100 4408 viii Reference Manual ...
Страница 10: ...Introduction Reference Manual February 2020 00809 0100 4408 10 Reference Manual ...
Страница 20: ...Transmitter overview Reference Manual February 2020 00809 0100 4408 20 Reference Manual ...
Страница 72: ...Mechanical installation Reference Manual February 2020 00809 0100 4408 72 Reference Manual ...
Страница 100: ...Operation Reference Manual February 2020 00809 0100 4408 100 Reference Manual ...
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