Campbell Manufacturing RF415 ユーザーズマニュアル
L-1
Appendix L. RF400/RF410 Average
Current Drain Calculations
Current Drain Calculations
For remote sites with tight power budgets due to solar or battery power
supplies, the following will help determine average current consumption. The
RF400/RF410’s average current drain is based on:
supplies, the following will help determine average current consumption. The
RF400/RF410’s average current drain is based on:
• Standby mode of RF400/RF410
• Data collection interval
• Data collection interval
• Number of data points collected
• “Time of inactivity to sleep” selection
• “Time of inactivity to sleep” selection
STANDBY MODES
TABLE L-1. Advanced Setup Menu
STANDBY
MODE
STANDBY
AVG RECEIVE
CURRENT
(Is)
DEFAULT
TIME OF INACTIVITY
TO SLEEP
(sec)
“LONG
HEADER”
LENGTH
(L)
0
1
< 24 mA
----
3
2
< 4 mA
5
0 ms
700 ms
4
3
< 2 mA
5
1200 ms
5
< 1 mA
5
2200 ms
6
< 0.6 mA
5
4200 ms
7
4
< 0.4 mA
5
8200 ms
1
Standard Setup menu selection 1
2
Standard Setup menu selection 2
3
Standard Setup menu selection 3
4
Standard Setup menu selection 4
CALCULATIONS
BASE
The average current drain of a base RF400/RF410 configured for scheduled
collections has 5 contributors:
The average current drain of a base RF400/RF410 configured for scheduled
collections has 5 contributors:
1) The STANDBY AVG RECEIVE CURRENT – Is
2) The average transmit current of LONG HEADER – Ih
3) The average transmit current of data request transmissions – Iq
4) The average receive current of data receptions – Ir
5) The average receive current of “time of inactivity to sleep” – Ii
2) The average transmit current of LONG HEADER – Ih
3) The average transmit current of data request transmissions – Iq
4) The average receive current of data receptions – Ir
5) The average receive current of “time of inactivity to sleep” – Ii