User manual

User Manual Baxall Vivid Digital Video Recorder
11
INSTALLATION - STEP 1 CHOOSE A SUITABLE LOCATION
Introduction
The Vivid DVR design is robust, has a wide temperature and humidity operating range, and has been independently tested to
comply with the demanding system immunity requirements (ESD, Fast Transients, Surge and Radiated Immunity) of the
European standard for Electronic Security Systems, EN50130-4.
Nevertheless, locating the Vivid DVR in a controlled or benign environment, such as in an equipment rack in a server room
(ideally) or an air-conditioned office, and paying careful attention to the following issues will minimise the possibility of in-use
equipment failures – with the possible consequent loss of important data - and maximise the operating life of your new Vivid
DVR.
Moisture
To avoid shock hazards or the risk of fire ensure that the Vivid DVR is not installed anywhere that it will be exposed to rain or
moisture.
Temperature
The Vivid DVR has a specified operating temperature range of 0°C to 40°C (32°F to 104°F).
However, like all computer equipment, an ambient temperature range of 21°C to 23°C (70°F to 74°F) is optimal for long-term
system reliability. A temperature level near 22°C (72°F) is also desirable because it makes it easier to maintain a safe relative
humidity level (see below). This recommended temperature also provides an operational buffer in case the environmental
support systems, such as air conditioning, malfunction.
Note: The operating temperature range for the Vivid DVR applies to the air taken in by each Vivid DVR at the point where the
air enters the system – and not necessarily the ambient temperature in the room where the system is installed. To check the
temperature of the air entering the Vivid, measure the temperature at 5cm (2 inches) from the right side of the equipment.
Caution: For maximum reliability please ensure that the Vivid DVR is not placed next to a source of excessive heat, such as
a radiator, hot equipment, or hot air duct or exhaust vent.
Humidity
The Vivid DVR has a specified operating range of 20% to 90%, non-condensing, relative humidity (RH).
However, like all computer equipment, an ambient relative humidity level between 45% and 50% is most suitable for long term
system reliability.
The main reason for this is that the amount of moisture that air can hold is temperature dependent. Therefore, if the relative
humidity is at either extreme of the safe operating range of the equipment, relatively small changes in ambient temperature can
easily result in the relative humidity moving outside the operating limits of the system.
In the case of very high relative humidity, a small reduction in temperature may lead to moisture condensing on the system –
possibly causing long term system damage through corrosion.
At the other extreme, low temperatures and low relative humidity, a small temperature increase may result in an unacceptably
low relative humidity leading to a greatly increased risk of intermittent interference, and even possible system damage, from
electrostatic discharge (ESD). This is especially true for relative humidity levels below 35%.
Operating the equipment in a relative humidity range of 45% to 50% minimises the risk of the above problems and ensures the
widest margin of time to fix a problem in the event of an environmental system failure.
Environmental Stability
For maximum long-term system reliability, environmental conditions should not be allowed to change by more that 5.5°C (10°F)
or 10% relative humidity in an hour.
Ventilation and Cooling
The Vivid DVR draws in ambient air for cooling from the right and discharges heated exhaust air to the left of the system (when
looked at from the front). Ensure that the air vents on either side of the system are not obstructed. In particular, ensure that
there are no obstructions within 5cm (2 inches) of either side of the system.
When installing the Vivid DVR in an equipment rack within a server room, take care to ensure that the heat output of the Vivid
DVR (listed in the specifications section at the back of this manual) is taken fully into account when calculating the cooling
requirements of the server room and that there is an adequate flow of cooled air to the system.
Note: In all installations, ensure that the cool air intake vents on the right side of the system are not close to the hot air exhaust
vents of any other system.
Environmental Acclimatisation
Prior to installing and powering up the Vivid DVR you should compare the temperature and humidity of the environment in
which the system had been stored to the conditions in the location where the unit is to be eventually installed.
Electronic equipment can be damaged if the rate of temperature or humidity change that it is exposed to is too great - especially
when power is applied to the system. The maximum positive or negative temperature gradient that is recommended for
multilayered printed circuit boards is approximately 2°C (4°F) per hour. The same applies to humidity; it is best for change to
occur slowly.
Therefore, if it is necessary to compensate for significant temperature or humidity differences between the system and the
installation location, place the Vivid DVR, in its shipping packaging, in a location that has a similar temperature and humidity
environment as the eventual location for at least 24 hours before installation to prevent possible damage from thermal shock
and condensation.