Campbell CCFC, Инструкция по эксплуатации

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CCFC Field Camera
13
The auto focus operation attempts to focus on the most distant object in the
field of view. For example, in a scene with mountains in the background and a
tree in the foreground, the camera will focus on the mountains.
7.5.3 Temperature Variations and Focus
The focus of the lens can change slightly with large variations in temperature.
For example, if a lens is focused at +35°C, the lens may be slightly out of focus
at -40°C. The change in focus will be less noticeable if the focus is adjusted
closer to the camera’s operating temperature.
Some lens options are unavailable when working in the extreme cold. The
zoom function disables below -30
°
C and the focus function disables below
-35
°
C. Note that these thresholds are based on camera internal temperatues,
which can be several degrees warmer than ambient outdoor temperate. The
camera will continue to capture photos and video as set up, but the zoom and
focus features will not function. Check the internal temperature of the camera
using the
Dasboard of the web interface (see Section 12.3 Dashboard ).
7.5.4 Lens IR Cut Filter
The CCFC is internally equipped with an IR cut filter. The filter is required to
filter out near infrared light that can have an undesirable effect on the photos.
8. Cables/Wiring
8.1 Power & I/O Cable Connections
The wiring for the Power & I/O Cable connector assembly and which wires
need to be connected for the intended camera application is as shown in Table
8-1
Power & I/O Cable Connections . The wires can be terminated directly on
the control ports of a compatible datalogger (for compatible dataloggers see
Section 17
CCFC Compatibility ).
It is essential that the black ground wire be connected first when
wiring the camera to the datalogger or other power supply. Note