Dahua NVR41-4KS2 Series, Руководство пользователя

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User's Manual
299
Parameter Description
Delay
At the end of the alarm, the recording extends for a period of time. The time
range is from 10 seconds to 300 seconds.
Tour
Select the check box and select the channel for tour. When an alarm occurs,
the local interface of the NVR device displays the selected channel screen.
●
You need to set the time interval and mode for tour first, see "4.16.2
Tour".
●
After the tour is over, the preview interface is restored to the screen split
mode before the tour.
Snapshot
Select the Snapshot check box to take a snapshot of the selected channel.
To use this function, select
Main Menu
>
CAMERA
>
ENCODE
>
Snapshot
,
in the Mode list, select Event (Trigger) .
Log
Select the check box, the NVR device records the alarm information in the
log when an alarm occurs.
Voice Prompts
Check the box and then select the corresponding audio file from the
dropdown list. System plays the audio file when the alarm occurs.
Refer to "4.17.1 File Management" to add audio file first.
Buzzer Select the check box to activate the buzzer when an alarm occurs.
Step 3 Click Apply to complete the settings.
4.8.7 Thermal Alarm
Background Information
System supports thermal devices and receives the alarm signal from it. It can recognize the alarm
type, and then trigger the corresponding alarm actions.
The system supports fire alarm, temperature (temperature difference) and cold/hot alarm.
●
Fire alarm: System generates an alarm once it detects there is a fire. The alarm mode includes
Preset and Excluded zone.
●
Temperature (temperature difference): System triggers an alarm once the temperature difference
between two positions is higher or below the specified threshold.
●
Cold/hot alarm: System triggers an alarm once the detected position temperature is higher or
below the specified threshold.