3
Turn on the power
After all connections and installations are completed,
turn on the power of the unit. When the camera is
booting, the [STATUS] indicator lights up orange. It lights
up green after booting.
Adjust the field angle and focus
1
Adjust the zoom ratio.
Loosen the fastening screw of the zoom adjustment ring, then
move the ring to the right and left to adjust the zoom ratio. After
completing the adjustment, tighten the setscrew.
Note
• Applying force to the zoom adjustment ring while adjusting the
image size may result in damage.
Moving the zoom adjustment ring beyond its adjustable range
may cause the performance of this camera to deteriorate.
Mount the dome cover
Mount the inner dome
Engage the inner dome slot with the projection, and
mount the dome by rotating it in the direction of the
arrow. Press the inner dome in until you hear the click of
the catch.
Catches
(two locations)
Inner
depression
Protruding part
Inner dome
Mount the dome cover and remove
the dome cover protective sheet
Note
• If you remove the dome cover again after installing it, the field angle may
shift. If the field angle has shifted, adjust the focus and the field angle again.
• Check to ensure that the dome cover is firmly mounted. The cover
may fall off if it is not mounted correctly.
Align the position aligning marks (two locations) on the
camera body and the dome cover, mount the dome
cover and secure the dome cover with screws.
Position aligning mark
Mounting
position of a
screw (supplied)
Dome cover protective sheet
Memo
• Secure the dome cover using two dome cover setscrews as required.
Image Adjustment
Adjust images by watching them on the monitor.
* The illustration of the camera directly mounted on the ceiling is used.
The same procedures are performed regardless of the camera is
embedded into the ceiling or mounted on the wall with the cables
pulled out.
Note
• Before touching the camera body, make sure you touch the metal
surface of the [MONITOR] terminal first to discharge any static
electricity from your body.
Otherwise, static electricity may cause the camera to malfunction.
Adjust the shooting direction of the
camera
1
Connect a test monitor to the [MONITOR] terminal.
ASSIST
FOCUS
PA
L
NTSC
MONIT
OR
RESET
[MONITOR] selection switch
NTSC
PAL
[MONITOR] terminal
75
Ω
termination
Test monitor
[RESET] button
[STATUS] indicator
Memo
• The camera has the 16:9 aspect ratio. If the test monitor has the 4:3 aspect
ratio, the camera image is converted into the 4:3 ratio and displayed.
• Set to "NTSC" when connecting to an NTSC monitor, or set to "PAL"
when connecting to a PAL monitor, then hold down the [RESET]
button for approximately three seconds to reboot. While the camera
is rebooting, the [STATUS] indicator lights up orange.
• If you keep pressing the [RESET] button for more than 5s, the camera
enters the Service mode. Do not press this button for more than 5s.
2
Adjust the shooting direction of the camera.
• Before you start, remove the light-blue protection tape.
• Adjust the pan, tilt and rotation controls of the cameras to face
the lens towards the subject.
• After adjusting the field angle, tighten the tilt fastening screw to
secure the camera so that its field angle does not go out of alignment.
Note
• Moving the pan, tilt or rotation beyond the adjustment range may
damage this unit.
• As the tilt and rotation range of this unit is wide, part of this unit may
be reflected in the shooting screen depending on the field angle and
direction.
• Do not hold the lens section when adjusting the direction of pan, tilt
or rotation. The lens section may be damaged if you apply force to it.
Pan: ± 175°
Tilt: ± 80°
Rotation: ± 100°
Shooting direction mark
Pan center mark
Rotation center mark
Rotation
Knob (two locations)
Protection tape
Memo
• Rotate the lens in the pan, rotation and tilt directions ± 175°, ± 100°
and ± 80° respectively from the position aligned with the camera's
shooting direction mark, pan center mark and rotation center mark.
Be sure to hold the rotation control and adjust the rotation without
holding the lens section.
• When you mount the camera body, align the shooting direction mark
within the shooting range.
When you mount the dome cover, make sure that no cables are connected to the [MONITOR] terminal.
☞
Continued overleaf
Knob
Catches
B
Focusing ring
Zoom adjustment ring
Focus adjustment gear
Dome cover
protective sheet
Tilt fastening
screw
A
Dome cover
setscrews
Dome cover
C
Protruding part
[MONITOR] terminal
Zoom adjustment ring
Knob
Catches
B A
Focus adjustment gear
C
One base
pitch
VN-H257U camera
VN-H237U camera
2
Roughly adjust the focus.
1
Lift the focusing gear control, release the catch from position A
and insert it into position B to disengage the gear.
Note
• If you open the gear beyond position B, the gear shaft is
released from the bearing (C in the figure on the left) to prevent
it from being damaged. In this case, correctly re-insert the shaft
into bearing A (the original position).
VN-H257U camera
2
Rotate the lens section at the tip to roughly adjust the focus.
2
Lens section
Note
• Do not hold the lens section when adjusting the direction of the
camera. The lens section may be damaged if you apply force to
it. Also, exercise care not to leave your finger prints on the lens
when you rotate the lens section.
3
Return the catch of the focus adjustment gear B to position A
shown in the diagram, and then return the focus adjustment
gear to its original position.
VN-H237U camera
2
Loosen the focusing ring setscrew and roughly focus the image
by rotating the ring to the right or left.
3
Return the catch of the focus adjustment gear B to position A
shown in the diagram, and then return the focus adjustment
gear to its original position.
3
Finely adjust the focus.
VN-H257U camera
1
Connect the camera to a computer, and open the Built-in Viewer.
• For details about computer settings and methods for
connecting the camera to a computer, refer to “Instructions (IP
Address Settings)”.
2
Select “Day Focus Adjust” from the “Focus” page in “Advanced
Settings”.
• The focus position is automatically adjusted.
• For details on focus, refer to “Instructions (Setting)” on the
supplied CD-ROM.
• You can also adjust the focus after mounting the dome cover.
VN-H237U camera
1
Press the [FOCUS ASSIST] button.
• The camera enters Focus Assist mode, and [STATUS]
indicator flashes green and orange alternately.
• The image is sharpened with the opening of the aperture.
2
Finely adjust the camera focus by rotating the focus adjustment
gear knob to the right or left.
3
Rotate the focus adjustment gear knob for approximately one
base pitch in the direction of the arrow shown in the figure.
• This is to correct the focus shift when mounting the dome cover.
4
Remove the protective sheet of the dome cover, and check the
camera focus by holding the dome cover over the lens.
• After checking, replace the protective sheet on the dome cover.
5
Tighten the setscrew of the focus adjustment ring and fix the focus.
6
Press the [FOCUS ASSIST] button.
• The Focus Assist mode will be released.
• [The STATUS] indicator lights up green.
Note
• It may be difficult to acquire focus automatically when shooting
the following places.
– Too bright places.
– Too dark places.
– Places where brightness always changes. (e.g. a light is
flickering; people are passing by in front of the camera.)
– Places where there is little contrast of brightness.
– Places where there are repeating patterns of vertical stripes.
Memo
• The focus position can be manually adjusted by using the Built-
in Viewer installed on your computer connected to the camera.
(
☞
“Instructions (Setting)”) Resort to this method if it is difficult
to acquire focus automatically.
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