User`s guide

Operating the DVR
4–12 700-0035 R004
4.10. LOW VOLTAGE/LOW/HIGH TEMP Indicator
In addition to the on-screen voltage display, the TR4 Plus DVR has a red LOW
VOLTAGE/LOW/HIGH TEMP indicator on the back of the DVR. The indicator
illuminates when the voltage level to the DVR is too low, as shown in Table 4-5.
The
LOW VOLTAGE/LOW/HIGH TEMP indicator also illuminates according to the
temperature inside the DVR. The settings are described in “Advanced Smart-
Temp”.
4.11. Advanced Smart-Temp
The TR4 Plus System incorporates several advanced features such as the
Advanced Smart-Temp™. Advanced Smart-Temp and the built-in heater ensure
safe operation of the DVR over a wide temperature range by monitoring the
temperature inside the DVR to ensure the hard drive operates in a safe
environment. In many areas, the temperature drops well below 40°F (4°C) and
quite often below 32°F (0°C). Most computer hard drives are designed to work
from about 40°F (4°C) to about 120°F (49°C).
Table 4-5 L OW VOLTAGE / LOW / HIGH TEMP indicator
Voltage level to
the DVR
LOW VOLTAGE/LOW/HIGH
TEMP indicator will …
Status of the DVR
Below 10.5 VDC Illuminate The DVR will stop recording and begin to shut down as the
voltage is too low to operate the camera properly.
Rises to 11 VDC Turn off DVR operation will return to normal.
Table 4-6 Advanced Smart-Temp features
Temperature inside
DVR
Advanced Smart-Temp…
LOW/HIGH TEMP Indicator
status
Below 40°F (5°C) Turns on the internal heater and pulses the system
fan to circulate the warm air.
Flashes to indicate that the
temperature is too low.
Below 5°F (–15°C) Will not power the DVR at all, although the hard
drive can still be removed from the DVR.
Flashes to indicate that the
temperature is too low.
Above 113°F (45°C) Turns on the system fan. Flashes to indicate that the
temperature is too high.
Above 140°F (60°C) Shuts down the DVR to protect the hard drive from
damage. The system fan will continue to operate.
Flashes to indicate that the
temperature is too high.