Table A-6: Minimum Input Voltage (U
i
) at Different Currents
Hazardous approval Current
3.75 mA 21.75 mA
Minimum input voltage (U
i
)
Non-hazardous installations, intrinsically safe
installations and Non-sparking installations
16 Vdc 11 Vdc
Explosion-proof/flameproof installations 20 Vdc 15.5 Vdc
Signal on alarm
High Low
Standard 21.75 mA 3.75 mA
Namur NE43 22.50 mA 3.60 mA
Saturation levels
High Low
Standard 20.8 mA 3.9 mA
Namur NE43 20.5 mA 3.8 mA
A.2.4 FOUNDATION
™
Fieldbus (output option code F)
Power requirements
Terminals in the transmitter housing provide connections for signal cables. The
Rosemount 5300 Level Transmitter is powered over FOUNDATION
™
Fieldbus with standard
fieldbus power supplies. The transmitter operates with the following power supplies:
Table A-7: External Power Supply for F
OUNDATION Fieldbus
Approval type Power supply (Vdc)
None 9 - 32
Non-sparking/Energy limited 9 - 32
Intrinsically Safe 9 - 30
FISCO 9 - 17.5
Explosion-proof/flameproof 16 - 32
Quiescent current draw
22 mA
Reference Manual Specifications and reference data
00809-0100-4530 April 2019
Reference Manual 283
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