ACR Electronics SmartReader Plus Manual do Utilizador Página 55

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SmartReader Data Logger
47
Copyright © 2010 ACR Systems Inc. All Rights Reserved.
opening again before repeating the cycle (Figure 7-7).
Figure 7-7: Battery Voltage Profile at 32 sec. Sampling
It extends battery life by only drawing power, when necessary, to meet the input requirements
of the transducer or transmitter circuit that you want to monitor (Figure 7-8).
Figure 7-8: How the Battery Switch Extends Battery Life
To use the battery switch, the battery's positive (+) terminal must be wired to the "+ Battery In"
terminal on the SmartReader 7 (refer to Figure 7-9). The power to your external transducers
will then be available from the "+ Power Out" terminal. The battery's negative (-) terminal can
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