Brigade MDR-404-500, Installation And Operation Manual, Page: 22 / 71

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4.2.7 Voltage
(a) Low Voltage Protection Figure 46 illustrates the main window displayed by browsing to Settings

Event

Voltage :
Low Voltage Protection Figure 46
(b) In order to activate low voltage protection, turn the ENABLE cell On .
(c) This feature shuts down the MDR when the supply voltage falls below the Voltage specified in LOW VOLTAGE .
(d) VOLTAGE OF START is the minimum voltage required to turn On the MDR after a low voltage shutdown.
(e) The MDR verifies this value (before powering on) to confirm the battery has been recharged/replaced and is fully operational. SHUT DOWN
DELAY specifies the period the MDR will count down before shutting down (expressed in minutes).
(f) In this example VOLTAGE OF START has been left to its default value of 21.0V.
(g) OBSERVE TIME range is 1-300 minutes. This refers to the duration for which a voltage, lesser than LOW VOLTAGE must be observed
before beginning the SHUT DOWN DELAY .
(h) If the MDR is running on a 12V supply LOW VOLTAGE minimum is 8V and VOLTAGE OF START maximum is 13V.
(i) If the MDR is running on a 24V supply LOW VOLTAGE minimum is 16V and VOLTAGE OF START maximum is 26V.
Proposed Low Voltage Protection Settings (Note: Please check if these are suitable for the particular vehicle):
12V Vehicles 24V Vehicles
Low Voltage:11.7V Low Voltage:23.7V
Voltage of Start:12.5V Voltage of Start:24.5V
Observe Time:15 minutes Observe Time: 15 minutes
Shut Down Delay:5 minutes Shut Down Delay:5 minutes
Note: In this example Low Voltage Protection Figure 46 , whenever the voltage of the battery connected to the MDR falls below 18.0V (sustained
for 5 minutes), the MDR will automatically shut down after 10 minutes to protect the battery from any further drainage that could damage
it. MDR will not turn on until it detects a voltage of 21.0V.
4.2.8 Snap Settings
(a) By browsing to Settings

Event

Snap Settings

Alarm Snap Settings, Snap Settings Screen Figure 47 and Alarm Snap Settings
Figure 48 will be displayed. This sub-menu allows users to select the cameras that snapshot when an alarm is triggered, as explained in
section 4.2.2 Alarm Outputs.
(b) For instance, the activation of a trigger sensor, such as S4, could trigger a snapshot of camera 1. The user can also snapshot camera 1
when other alarms are activated, such as motion detection, panic button or low voltage.
Snap Settings Screen Figure 47
Alarm Snap Settings Figure 48
(c) In order to export snapshots to a USB pen-drive, refer to sub-sections 6.4.3 and 6.4.4 under System Log.
(d) There is no limitation of the number of snaps, but this uses the same storage limit as recordings. If the storage is full, then the oldest snap
will be written over.
(e) Snaps are stored in the same area on the HDD, but these are distinguished from recordings by its filename.