Enfora Observer IV ユーザーズマニュアル

 

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The camera can be powered externally with an AC adapter or internally via 5 AA batteries. 
 
Internal batteries 
 
Remove the four machine screws holding the bottom plate to access this area.  When internal 
batteries are used, the switch on the battery tray must be in the upward (towards the red dot) 
position.   Make sure the batteries are installed with the correct polarity, the flat end of the battery 
(negative) faces the spring within the holder. 
 
The duration of operation obtained from a single set of batteries depends on several factors; the 
operating mode selected, the image size and compression level, the type of battery, the 
temperature, and the rate of image delivery.  The following table depicts typical performance for 
different battery types when the camera is configured to deliver 1 image every 15 minutes.  The 
images are Large size with Medium compression setting, and the camera is operating in the Auto 
mode at room temperature. 
 

Battery Type 

Images Delivered 

 

Alkaline   350 

 

Rechargeable  

325 

   NiMH 

 

Lithium 

  650 

 
External power 
 
An AC adapter is available which will supply power to the external connector.  When the external 
power connections are used, the internal power selector switch must be set properly (away from 
the red dot), and no batteries need be installed.  The external power requirements are listed in the 
Appendix B. 
 
Power mode selection 
 
Two power modes are available when operating the camera.  The power switch on the back panel 
selects these modes.  The ON mode keeps the camera constantly powered.  The AUTO mode 
allows the camera to turn on only in response to a scheduled time or to a signal on the external 
trigger.  The only operational difference between the two modes is that in the ON mode the 
camera can receive and respond to text messages from a cell phone.  Since the camera is off most 
of the time in the AUTO mode, this capability is not available.  However, the AUTO mode is 
useful for minimizing power usage, an important feature for remote operation. 
 
Generally, the availability of external electric power at the remote location will determine the 
power mode, ON or AUTO, in which the camera will be operated. The camera operation and 
required settings associated with the two modes is summarized in the following table