Dedicated Micros ©2007
SD Range
Problem Solving
This is a list of common problems encountered using Digital Video recording technology in a CCTV
environment; and suggested solutions for each scenario.
I keep getting two alarms for one event. How can I prevent this ?
A pulse extension extends the trigger period to avoid double alarm triggers from occurring, i.e. If a second trigger
occurs on the same alarm input within the pulse extension time period, the unit will not create a new event.
Answer
Extend the Pulse Extension via the ‘Installer’ menus. Go to the ‘Alarms and Presets’ menu and increase
the extension parameter.
My images are feint/dark ?
Ensure the camera has been set up correctly. Signals from the cameras can be adjusted within the DVR to
compensate for a variety of conditions. The contrast can be altered.
Answer
Modify the camera settings via the ‘Installer’ menus. Go to the ‘Camera Advance’ menu and modify the
contrast parameters.
Also
If the camera feed was previously looped through and then disconnected, check the camera has been
correctly terminated. Check the Input Termination parameter is set to ‘On’.
How do I identify which unit I am viewing over a network ?
Each unit can be allocated a relevant 20 character name to identify the unit to the Operator or System
Administrator.
Answer
Check the settings via the ‘Installer’ menus. Go to the menu and check the Unit name parameters.
How do I make sure I delete images after a certain time period ?
Images recorded onto disk can be made unavailable after a user-defined number of days and hours. This is
designed to help operators comply with legislation on the retention of images for a set period of time. Once the
timed expiry has been set, all images older than the selected time will be no longer available.
Answer
Modify the settings via the Installer menus. Go to the Record Options menu and modify the Timed expiry
parameters.
How do I protect images from being overwritten ?
It is possible to protect images stored on the unit hard drives. These images will not be overwritten.
Answer
Modify the settings via the ‘Installer’ menus. Go to the ‘Record Options’ menu and utilise the Image
Protection function.
How do I see all system alarms, failed cameras, the amount of available storage and
earliest protected recording on my unit ?
All of these parameters are available via the Status Page. This should be checked every day to ensure the system
is operating well and there are no obvious imminent problems.
Answer
View the information by pressing the MENU button once.
There is no response from the unit when I try to navigate the menus
Most likely solution is that the unit is in spot mode (the word SPOT will be displayed on the bottom of the screen
and the SPOT LED is lit).
Answer
Press the MONITOR button on the Keyboard.
The cable could have been connected incorrectly.
Answer
Check the monitor is not plugged into output monitor B.
I cannot select a specific camera
Answer
Check that the camera video input in the ‘Camera Advanced’ menu is set to connected.
Answer
Check that the camera has not been disabled (made covert) in the ‘Camera Viewing’ menu.
