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©
Dinel, s.r.o. ULM–54
Connection of ULM-54 powered by an internal source when using an external
communication HART resistor 250 Ω
This connection is used in the case of connecting one level meter where no power supply is
available or is not required and at the same time there is a communication HART resistor in
the current loop. The switch is set to OFF (highlighted in green).
Obr. 15: Connection of a level meter which is powered by an internal source
when using an external communication HART resistor 250 Ω
Connection of ULM-54 powered by an external source when using an internal communica-
tion HART resistor 250 Ω
This connection is used in the case of connecting one level meter where the use of an exter
-
nal power supply is required and at the same time there is no communication HART resistor
in the current loop. The switch is set to the ON position (highlighted in green). The external
power supply is marked as U in the connection.
Obr. 16: Connection of a level meter which is powered by an external source
when using an internal communication HART resistor 250 Ω
