FARFISA INTERCOMS DVR42E User Manual - page 8
Video quality
There are 3 different video quality settings for
operation: Normal, Low and High.
Use
#$
buttons of front panel to select mode
and then enter to confirm the selection.
Even video quality affects the total recording
capability on HDD.
Different video quality settings and HDD capacity
The higher the video quality is, the clearer images the unit plays.
The lower the video quality is, the more you can save the space on HDD.
The following table shows the recording time vs video quality settings table
with 80GB HDD for your reference.
Recording Time Table: Each mode
NB: The time table here below is for your reference only. Real HDD duration
will vary depending on the image complexity, color, Black & White, brightness,
contrast, image movement and background video noise. The overall capacity
could be less or more than the figure shown here.
Recording mode
↓
Fps
→
4
8
12
25
HIGH 427H 214H 142H 68H
NORMAL 505H 253H 168H 81H
PAL
LOW 617H 309H 206H 99H
Recording mode
↓
Fps
→
4
7
15
30
HIGH 463H 265H 123H 62H
NORMAL 556H 317H 148H 74H
NTSC
LOW 694H 397H 278H 93H
Record schedule
Enter into this option to change a recording
schedule during a day (24-hour period).
Numbers below indicate the time
duration within the 24 hours.
(T) Letter indicates recording.
(S) Letter indicates sensor recording. It
means the unit starts recording as the
attached sensors being triggered
during this period.
(--) Recording is off during this
duration.
MAIN MENU
CAMERA SELECT 1234
RECORD SELECT 1234
RECORD MODE EACH
RECORD FRAMERATE 25
&
VIDEO QUALITY HIGH
RECORD SCHEDULE
SUB MENU
HARD DRIVE SETUP
Recording time calculation formula:
)
(sec
Re
sec)
/
)(
(
)
/
(
000
.
000
.
1
)
(
onds
e
cordingtim
k
BxC
GB
k
x
GB
A
=
, where:
A: Hard disk capacity
B: Video Quality: Low (9Kb/frame), Normal (11Kb/frame), High (13Kb/frame)
C: Recording Frame Rate: 25fps, 12fps, 8fps, 6fps, 4fps, 3fps, 2fps, 1fps.
Example
: Continuous recording with High quality and Max. 25fps with 80GB
HDD. (80GB x 1,000,000 k/GB)/ (13k/f x 25fps) k/sec = 246.153,67 sec
246.153,67sec/60 = 4.102,5min. 4.102,5min./60 = 68,37hrs 68,37hrs/24=
2,85 days(continuous recording time for 80GB).
MAIN MENU
CAMERA SELECT 1234
RECORD SELECT 1234
RECORD MODE EACH
RECORD FRAMERATE 25
VIDEO QUALITY HIGH
&
RECORD SCHEDULE
SUB MENU
HARD DRIVE SETUP
SENSOR SETUP
PROGRAMMED RECORD
+ T T T S S T T T T T T T T T +
0 3 6 9 12 15 18 21 24
PRESS (
#$
), THEN ( )
PRESS(
!
) TO EXIT