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ROC827 Instruction Manual
Issued Mar-06 Power Connections 3-19
Table 3-13. Power Consumption of the RTD Modules
Power Consumption (mW)
I/O Module
Description P
TYPICAL
Quantity
Used
Duty
Cycle
Sub-Total
(mW)
RTD Module
65 mA @ 13.25 volts dc 1
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
Power Consumption (mW)
I/O Module
Description P
TYPICAL
Quantity
Used
Duty
Cycle
Sub-Total
(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
Power Consumption (mW)
Other Device
Description P
TYPICAL
Quantity
Used
Duty
Cycle
Sub-Total
(mW)
HART Module Base
110 mA @ 12 volts dc 1320 mW
Each Channel
Channel’s mA current
draw from +T
*
2.50
*
12
Table Total