ELRO DVR74W 7 tft 4-ch digital recorder + 500Gb hard disc - Manual (Page 5)

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Chapter 1 INTRODUCTION
1.1 Main Feature
HDVR is 4channel CIF resolution digital video recorder. Both of them have local recording, playback, support
treble code remote network surveillance, data backup, parameter setting, motion detection.
1.2 Product features
Advanced Linux;
H.264 compression, support D1;
USB IE to upgrade software;
USB mouse control;
PTZ (not used temporarily) and network function;
Multi-Language is selectable;
fixed 7 Inch TFT monitor;
Support 2 channel digital wireless camera.
Support mobile surveillance;
Support network center management system(CMS);
Remote power supply for 4 channel cameras;
support TV function;
Applied in large surveillance area such as supermarket, gas station, factory etc.
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Answer：
Setting wrong, or users didn’t click “Edit” to make it valid
Battery not connected well
The battery is invalid. Please change one.
10. Question：Why the “Stop recording” by the right mouse button does not work, how to stop recording?
Answer：：
The “Stop recording” by the right mouse button is only suitable for Manual recording. It can’t stop
recording when it’s in “start recording” or the video in video plan.
If you want to stop recording, please set the time is not recording.
11. Question：How much space of HDD for recording per hour?
Answer：
Each channel takes about 14Mbyte for audio recording
HDD space cost is related with “Best, Good, Middle” in “Record mode>Bit rate” and the video
size of the period. If the video is still, HDD cost will be small; if the video is moving, HDD cost
will be large. “Best” will take 320Mbyte of each channel per hour; “Good” 50~100Mbyte of each
channel per hour when video is still or few moving, 100~200 Mbyte of each channel per hour when
video has big moving or much moving; “Middle” 50~100Mbyte of each channel per hour when
video is still or few moving, 100~150 Mbyte of each channel per hour when video has big moving
or much moving.
12. Question：Why it can’t do motion detection?
Answer：：
The setting of the area of motion detection is not correct.
Low sensitivity
13. Question：CD-writer/USB backup error
Answer：
The data exceeds the capacity of backup device
The backup device incompatible
The backup device is damaged
HDVR7
2 channels RCA input/1 channel RCA output
2500g
230*200*130mm
7" Digital TFT
No
NA
DC 12V/5A
Yes
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