Troubleshooting - Swann NVR-7085 models Instruction Manual

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Troubleshooting

Q: The images from my cameras are black & white, flickering
and/or totally blank. What's up?
A: Most likely, your Video Standard isn't set correctly for
your region. Check out the section on PAL/NTSC
General" on page 44) for more information. As a rule of
thumb, set your video standard to NTSC if you're in the USA or
Canada, or PAL if you're in Europe, the UK or Australia.
If this is happening to only some of your cameras, then there
may be a problem with the compatibility of those cameras. If
you've got them from a kit, then this shouldn't be the case at
all and it indicates that something quite strange is happening.
If you have cameras purchased seperately - particularly if
you've found them online or from overseas - then they might
not match the standards of the cameras you've already got.
The NVR can only support one video standard at a time: mixing
PAL and NTSC cameras does not work.
Q: I can't login to or unlock the NVR - it says my password is
wrong.
A: The default username/password combination for the NVR
is "admin" with the password section left blank.
The NVR does have a default password ("12345") but it should
be disabled by default. If leaving the password section blank
doesn't work, try 12345. If that doesn't work (and you haven't
set a password of your own that you've forgotten) then
something strange has happened - contact Swann technical
support (contact details are on the rear cover).
Q: The NVR will boot up and show live images, but there are no
menus being displayed. Why?
A: There might be a fault with one (or more) of the hard drives
installed in the NVR. Before the menu system is displayed, the
NVR attempts to detect what drives are connected. If there is
an ambiguous signal preventing the NVR from ascertaining
whether there is a drive connected or not, then it will keep
looking and waiting for the drive to respond.
If you've just installed a new drive, disconnect it and see if that
fixes the problem. You can also try disconnecting one drive at
a time to see if that one is the culprit.
Q: How do I eliminate false-triggers on my motion detection?
A: There's no guaranteed way to eliminate false triggers, but
- in the majority of cases - you can fine-tune the NVR's motion
detection settings to reduce the number of false triggers
you're likely to get. (See "Alarm: Motion" on page 38
more detailed information about setting motion detection.)
1. Mask any redundant movement. This includes obvious
things like trees blowing in the wind, roads with cars
passing and so forth. Some less obvious things which
might cause false triggers include: the "flickering" of
screens, monitors or fluorescent lights, reflections of
movement in windows/mirrors and so on, lights which
are often turned on or off, shadows passing and so on.
We can't possibly imagine what you're going to find in
your unique circumstances, so we encourage you to
experiment.
2. Fine-tune your sensitivity. There's no substitute for getting
a volunteer to play the part of intruder and experimenting.
Some cameras are just more "touchy" than others, some
lighting conditions are harder to get the settings "right"
("System:
for. As a "rule", CCD cameras require a lower value than
CMOS cameras, and that motion detection is going to
be more sensitive at night (whenever the active infrared
nightvision is active).
3. Adjust your image settings (see
24). Unlike many image adjustment options, the NVR
pre-processes video, which means that, when the NVR
looks for motion, it's looking at your already processed
images. By reducing the amount of video noise in your
image, you can increase the accuracy of the motion
detection dramatically. Typically, the settings that most
often require adjustment are Brightness and Contrast.
Video noise is a problem with any video signal. It's the very slight
change in brightness and/or color of pixels between frames,
and it's commonly regarded as being "just one of those things"
when dealing with digital imaging. By tweaking the brightness
and contrast, you can usually remove a good deal of this noise,
as it tends to be most pronounced near the blacks (the really
dark bits) and the whites (the really bright bits) of your images.
Q: I'm getting too many email alerts from the NVR.
A: There are a few things that might help, depending what's
generating the email alerts. Here are a few possibilities:
• The emails are for real events, however it is telling me
about it multiple times.
This indicates that the NVR is functioning properly, but that the
Interval setting for your email alerts is too low. Increasing the
Interval time will decrease the number of email alerts the NVR
sends.
• The NVR sends email alerts when nothing seems to be
happening.
This suggests that there might be something amiss with your
Motion Detection settings, or with the configuration of your
sensors (if used).
The most likely explanation is that there is something in
view of your cameras which is moving, or causes the illusion
of movement. Have a look at
Configuration" on page 39
• The NVR keeps reporting errors (such as Video Loss,
HDD Error or similar).
There seems to be a hardware or configuration fault with the
NVR. These are most often caused by a faulty (or simply poorly
for
connected) connection or cable. Check the integrity of your
cables and connections.
"Display: Camera" on page
"Alarm: Motion Detection
for some more information.
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