Emerson ROC827 Power Consumption of the RTD Modules, Power Consumption of the Hart Modules

ROC827 Instruction Manual

Table 3-13. Power Consumption of the RTD Modules

I/O Module	Power Consumption (mW)		Quantity	Duty	Sub-Total
	Description	PTYPICAL	Used	Cycle	(mW)
				1
RTD Module	65 mA @ 13.25 volts dc
			Table Total

Duty Cycle An RTD has no associated duty cycle. Consequently, always set “1” as the duty cycle value.

Table 3-14. Power Consumption of the Thermocouple Modules

I/O Module	Power Consumption (mW)		Quantity	Duty	Sub-Total
	Description	PTYPICAL	Used	Cycle	(mW)
TYPE J OR K THERMOCOUPLE MODULE
T/C Module	84 mA @ 12 volts dc	1008 mW		1
			Table Total

Duty Cycle A thermocouple has no associated duty cycle. Consequently, always set “1” as the duty cycle value.

Table 3-15. Power Consumption of the HART Modules

Other Device	Power Consumption (mW)		Quantity	Duty	Sub-Total
	Description	PTYPICAL	Used	Cycle	(mW)
HART Module Base	110 mA @ 12 volts dc	1320 mW
	Channel’s mA current

Each Channel	draw from +T * 2.50 * 12
	Table Total

Issued Mar-06 Power Connections 3-19