Measurement-computing CIO-DAC02 Manual do Utilizador descarregar pdf (Página 14)

CIO-DAC02 User's Guide Functional Details

A minimum of 8 VDC and a maximum of 36 VDC external excitation voltage is used to power the loop. A

typical application would use a 24 V loop supply. The loop may use either a grounded load (the supply

"floats"), or a grounded supply, (the load "floats"). Both methods are shown in Figure 7.

4-20mA OUTPUTS - The 4-20 mA may be hooked up with either a

floating supply or a floating load. Both methods are shown here.

GROUNDED

LOAD

4-20mA

LLGND

FLOATING

SUPPLY

FLOATING

GROUNDED

SUPPLY

Figure 7. Loop grounding methods

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