Jai CV-M300 User Manual download pdf (Page 16)

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CV-M300

Cautions on Shutter.

The image can flicker when the illumination is AC powered.

Highlighted parts of the image will show increasing smear at a shorter shutter time.

7.1.4. Ext. Trigger Shutter Mode

When trigger select SW1-4 is ON. The camera is in ext. trigger shutter mode. The SW1-1, SW1-2 and SW1-

3 are for selecting the shutter speed. The range is from OFF to 1/10,000 second in 8 steps. For each

external trigger pulse, the camera will make an exposure with the selected shutter speed.

The shutter time setting is shown in “7.1.3. Table for Shutter Time”.

7.1.5. Trigger Select

SW1-4 is will select the camera operation mode.

OFF is normal mode, where the camera is running continuously.

ON is the ext. trigger shutter mode. Here the external trigger pulse will start the exposure.

7.1.6. CCD Accumulation

SW1-5 will select the CCD accumulation mode.

OFF is field accumulation. It is used for moving objects.

ON is frame accumulation. It is for still objects.

7.1.7. Scanning System

SW1-6 will select the scanning system.

OFF is 2.1 interlaced. It will follow the EIA or CCIR standard for interlaced scanning.

ON is non-interlaced.

In EIA the non-interlaced output is continuous ODD field. In CCIR the non-interlaced output is continuous

EVEN field.

If the camera is ext. HD/VD synchronized with a non-interlaced sync, SW1-6 be in ON position.

7.1.8. Gamma Correction

SW1-7 will select the gamma correction.

OFF is gamma 1.0. It is linear. Recommended for machine vision and image processing.

ON is gamma 0.45. It is non-linear.

7.1.9. Gain Control

SW1-8 is for gain select.

OFF is manual gain. Here the gain can be controlled by the GAIN potmeter on the rear panel.

ON is the AGC mode. Here the gain is adjusted automatically. The AGC level can be adjusted by VR3 on

PK8042 board. See “8. Adjustment of Video Signal Output Level”.

7.2. SW2 on PK8041 Board

This switch is to select 75 Ohm termination or TTL for ext. HD and ext. VD.

SW2-1 is for HD signal.

SW2-2 is for VD signal.

ON is 75 Ohm terminated. (Factory setting).

OFF is TTL level.

SW2

OFF

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Jai CV-M300 User Manual Page 16