Emerson Rosemount 5301 - Page 17

Product Data Sheet
00813-0100-4530, Rev DA
December 2010
17
Rosemount 5300 Series
External Power Supply
(1)
R = Load Resistance (); U
E
= External Power Supply Voltage (Vdc); U
I
= Input Voltage (Vdc)
Minimum Input Voltage (U
I
) at
Different Currents
Current: 3.75 mA
Non-Hazardous Installations and Intrinsically Safe Installations: 16 Vdc
Explosion-proof / Flameproof Installations: 20 Vdc
Current: 21.75 mA
Non-Hazardous Installations and Intrinsically Safe Installations: 11 Vdc
Explosion-proof / Flameproof Installations: 15.5 Vdc
IS Parameters See “Product Certifications” on page 36
Signal on Alarm Standard: Low = 3.75 mA, High = 21.75 mA
Namur NE43: Low = 3.60 mA, High = 22.50 mA
Saturation Levels Standard: Low = 3.9 mA, High = 20.8 mA
Namur NE43: Low = 3.8 mA, High = 20.5 mA
The input voltage (U
I
) for HART is 16-42.4 Vdc
(16-30 Vdc in IS applications, and 20-42.4 Vdc
in Explosion-proof / Flameproof applications).
For Flameproof/Explosion-proof installations the
Rosemount 5300 Series transmitters have a
built-in barrier; no external barrier needed.
When a Smart Wireless THUM adapter is fitted,
it adds a maximum drop of 2.5 Vdc in the
connected loop
R
U
E
U
I