Other Functions - IAI CV-M40 Operating Manual

6.4. Other Functions.

Shutter speed.
The shutter speed can be set by the rear switch SW1-1 through 1-3 in 8 fixed steps from 1/125 to
1/12,000 second.
Via RS-232C it can be set to 9 fixed steps from 1/60 (Off) to 1/12,000 sec. Further it can be
programmed with 1H step from 2H to 524H (Off).
Readout mode.
Normal full frame readout or binning can be selected by SW1-4. The binning is vertical 2:1,
where the pixel values from 2 adjacent lines are added and read out as a single line. The frame
rate is 120. Binning will not work together with partial scanning.
With RS-232C the binning function is found in the "Frames Mode" menu.
Trigger modes.
The 4 modes can be selected by SW1-5 and SW1-6, or via RS-232C in "Trigger Modes" menu.
Format.
Full or partial scanning can be selected by rear SW1-7. With partial selected, the scanning
format are set by internal jumpers JP14 through JP17. (1/2, 1/4, 1/8 or 1/16 partial). Factory
setting 1/4.
With RS-232C the partial scanning is found in the menu "Frame Modes". Here it is also possible
to program the partial scanning with 1line steps from 15H to 413H.
(Note: Programmable partial scan is not supported with timing diagrams.)
Control.
Switch SW1-8 selects if the camera is controlled locally by switch and jumpers or via RS-232C.
Gamma.
Gamma can be set to 1.0 (linear) or 0.45 by internal jumpers JP1 and JP2. Factory setting 1.0.
If JP1 and JP2 is open, the gamma selection can be done via RS-232C.
WEN polarity.
The WEN output pulse is positive going 1H wide as factory setting. It indicates that the resulting
video signal is read out. With the internal jumper JP22, the WEN pulse can be changed so it is
low during video readout. Refer to timing diagrams for details.
Gain settings.
As factory setting the video gain can be controlled by the rear potentiometer.
Via RS-232C the video gain function has 3 modes.
1. Automatic Gain Control. AGC. Here the gain is automatic controlled to keep the video
level constant within a 12 dB range. The level is given by the AGC reference value.
2. Manual Gain Control. Here the gain level is set by Manual Gain Level via RS-232C.
3. Hardware (Rear potentiometer) where the gain can be set by the rear potentiometer.
AGC reference level.
The AGC reference level can be set by RS-232C only. The level is adjusted so the automatic gain
control circuit AGC will keep the video level constant. Normal video output 700 mVpp ±30 mV.
Black level.
RS-232C only. Black level (or set-up) can set the video level for black. Normal 20 mV ±2 mV.
White clip level.
RS-232C only. Is set to clip highlighted video signal peaks. Normal clip level is 800 mVpp ±30 mV.
CV-M40
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