Maintenance and Troubleshooting Tips
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427-0200-00-12 Revision 100
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At certain times of the day, such as just before dawn, the objects in the scene may all be roughly the same
temperature. Compare this to imagery right after sunset, when objects in the scene may be radiating heat
energy that has been absorbed during the day due to solar loading. Greater temperature differences in the
scene will allow the thermal sensor to produce high-contrast imagery.
Performance may also be affected when objects in the scene are wet rather than dry, such as on a foggy
day or in the early morning when everything may be coated with dew. Under these conditions, it may be
difficult for the thermal sensor to detect the temperature of the object itself, rather than of the water coating.
Unable to Communicate over Ethernet
First check to ensure the physical connections are intact and that the camera is powered on.
By default the camera will broadcast a discovery packet two times per second. Use the FLIR Discovery
Network Assistant (DNA) tool or a packet sniffer utility such as Wireshark and confirm the packets are
being received by the PC from the camera.
Unable to View Video Stream
If the video stream from the camera is not displayed, it could be that the packets are blocked by the
firewall, or there could be a conflict with video codecs that are installed for other video programs.
When displaying video with a VMS for the first time, the Windows Personal Firewall may ask for
permission to allow the video player to communicate on the network. Select the check boxes
(domain/private/public) that are appropriate for the network.
If necessary, test to make sure the video from the camera can be viewed by a generic video player such
as VLC media player (http://www.videolan.org/vlc/). To view the video stream, specify RTSP port 554 and
the appropriate stream name. For example, using the camera's default IP address when there is no DHCP
server on the network (192.168.0.250):
rtsp://192.168.0.250:554/stream1 for Visible 1
rtsp://192.168.0.250:554/stream2 for Visible 2
rtsp://192.168.0.250:554/stream3 for Thermal 1
Accessing any of the camera's video streams requires authentication. You can use the name and
password for any of the camera's users. See Users Page.
Refer to Network Options for additional information on RTP settings and stream names.
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