IS Barrier Calculator | Emerson US

IS Barrier Calculator

Barrier Safety Parameters

V_oc , V_t or U_o

volts

I_sc , I_t or I_o

mA

P_o

watts

"IS circuit" is safe

Input

Open circuit Barrier Voltage

volts

Barrier Output Resistance

ohms

Valve Ambient Temp °C

°C

Conductor gauge in cable

AWG

Cable length

feet

Leakage/Supervisory current

mA

Result

Resistance of Cabling

ohms

Coil Resistance @ Ambient

ohms

Loop Current in Coil

mA

Valve will function properly

Valve will dropout

Schematic Diagram of IS Circuit

		Barrier Output Resistance :	1/2 Resistance of Cabling :

Open circuit Barrier Voltage :						Coil Resistance @ Ambient :

			1/2 Resistance of Cabling :

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