Hitachi KP-FM500WCL, Руководство по эксплуатации

Страница: 7 / 51

F
Operating considerations Notes to users
1. Important safety notes
・
Use this camera with a 12VDC (11VDC to 13VDC) power supply. Time will be needed for about four seconds by the time the
camera works normally after turning on the power supply.
・
Observe that flammable objects, water or metal do not enter the camera interior. These may lead to failure or accident.
・
Do not modify the camera or use the camera with external covers removed. These may cause failure, void any warranties and
pose a safety hazard.
・
Stop using the camera at the approach of electrical storm (thunder audible). Protect the camera from rain if using it outdoors.
・
In event the camera shows any abnormality, switch off the camera and disconnect the power cord. Contract a Hitachi Kokusai
Electric service representative.
・
Do not touch the optical filter on the front of the sensor. The image deteriorates due to dirt, scratches, etc.
・
When using a heavy lens such as a zoom lens or when heavy vibration or shock is applied, fix the lens to the device.
2. Handling
・
Do not attempt to remove cover.
・
When installing or removing a lens, be sure to use care that water or dust dose not enter the inside of the camera.
・
Please do installation work of lens at a clean place to prevent dust adhesion.
・
When installing the lens, please handle carefully so as not to incline. Also, in the screw part of the lens mount, please use those
with no foreign matter adhesion, scratches or garbage etc.
3. Installing and storage
Avoid installing or storing the camera in the following environments.
・
Environments exposed to direct sunlight, rain or snow.
・
Environments where combustible or corrosive gas exists.
・
Excessively warm or cold environment (Operating ambient temperature: -10 to 50
℃
).
・
Humid or dusty environment.
・
Place subjected to excessive vibration or shock.
・
Environment exposed to strong electric or magnetic field.
・
Do not aim the camera lens at the sun.
・
Do not shoot strong light.
・
When such a scene is shot, vertical trailing will appear. However, this is not due to failure. In case strong light enters camera
through the lens, partial deterioration in picture quality will result.
4. To obtain stable performance for long time
When the camera is used continuously for long time under high ambient temperature, the inside electrical parts become
deteriorated, resulting in shortening its life. To use the camera continuously for long time, the highest temperature must be below
40
℃
.
5. Connectors
Confirm the power is off before connecting or disconnecting a signal cable. Grasp connectors by the body, not the attached wires.
6. Cleaning
・
Use a blower or a lens brush to remove dusts on the lens or the optical filter.
・
Wipe dirts on the case off with dry soft cloth. If dirts are hardened, wipe them off with cloth moistened with neutral detergent liquid;
wipe the cover with dry cloth. Please remove dusts it so as not to scratch lens or optical filter.
・
Do not use benzene, thinner, alcohol, liquid cleaner or spray-type cleaner.
・
In event dust or other debris is lodged between the CMOS and optical filter, consult dealer for cleaning by an optical technician.
・
Even when you do not use this camera, please attach a lens or seal to protect the optical filter from dust and scratches.
7. Phenomena inherent to CMOS imaging device
The following phenomena are inherent to a CMOS device and do not indicate malfunction.
1) Fixed pattern noise
High ambient temperature or high camera sensitivity can cause fixed pattern noise to appear throughout the scene.
2) Moire
Interaction between patterns can produce an additional "phantom" pattern to appear. The CMOS picture elements (pixels) are
arranged in a pattern, which can interact with a pattern in the scene (e.g., a performer wearing a finely striped necktie) to result
in a Moire pattern. The effect should be considered when selecting costumes, props and other scene elements.
3) Ghosting
Strong direct or reflected light near an object of interest can cause ghosting of the object to appear in the picture. The effect is
more obtrusive with certain iris settings and lens types. Select the scene layout and camera pointing direction carefully in order
to avoid this effect.
4
）
Defective pixels
Imperceptible white spots may rarely come up on the screen due to cosmic rays and so on. It becomes easy to appear when the
sensitivity of the camera is raised or in the operation at the high temperature.