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.
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
1Connect a test monitor to the [MONITOR] terminal.
| [STATUS] indicator |
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[MONITOR] selection switch | NTSC |
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NTSC | RESET |
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PAL |
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| [RESET] button | |
PAL |
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| FOCUS ASSIST |
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| MONITOR | [MONITOR] terminal |
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75 Ω termination
Test monitor
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.
2Adjust the shooting direction of the camera.•Before you start, remove the
•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
Adjust the field angle and focus
1Adjust 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.
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Knob | Knob | Focusing ring |
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Catches | Catches | |
B A Zoom adjustment ring |
| B A Zoom adjustment ring |
C |
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Focus adjustment gear | One base | Focus adjustment gear | |
[MONITOR] terminal | |||
Dome cover | pitch | ||
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setscrews |
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Tilt fastening screw
Protruding part 
Dome cover protective sheet
Dome cover
1Lift 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
VN-H257U camera
2Rotate the lens section at the tip to roughly adjust the focus.
Lens section
2
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.
3Return 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
2Loosen the focusing ring setscrew and roughly focus the image by rotating the ring to the right or left.
3Return 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.
3Finely adjust the focus.1Connect the camera to a computer, and open the
•For details about computer settings and methods for connecting the camera to a computer, refer to “Instructions (IP Address Settings)”.
2Select “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
•You can also adjust the focus after mounting the dome cover.
1Press 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.
2Finely adjust the camera focus by rotating the focus adjustment gear knob to the right or left.
3Rotate 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. 4Remove 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. 5Tighten the setscrew of the focus adjustment ring and fix the focus. 6Press 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.
•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.
Mount the dome cover
When you mount the dome cover, make sure that no cables are connected to the [MONITOR] terminal.
Pan: ± 175°
Rotation: ± 100° | Tilt: ± 80° |
Shooting direction mark
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.
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.
Protection tape Pan center mark Rotation center mark
Rotation
Knob (two locations)
Protruding part 
Inner depression
Catches
(two locations)
Position aligning mark
Mounting
position of a screw (supplied)
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.
Inner dome
Dome cover protective sheet
Memo
• Secure the dome cover using two dome cover setscrews as required.
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