Table 3-2 Hegs5000/5001 Camera Lens Control - Honeywell ACUIX User Manual

Operation and Programming with Honeywell Diamond Protocol
32
If the camera is operating with the video gain higher than the minimum and the light level
increases the video gain will be decreased until it reaches the minimum value.
If the camera has auto slow shutter mode and it is set to auto and the light level continues
to decrease beyond the point where the camera's maximum video gain is reached, then the
time that the electronic shutter is open will increase beyond 1/60s for NTSC until it reaches
the maximum shutter time (1/2 to 2s depending on the camera). This will cause blurred
motion and slow updating of the picture.
If the camera is in the slow shutter mode and the light level increases the shutter time will
decrease until it reaches the normal setting (see above).
If the camera has True Day Night (TDN) functionality the IR block filter will be removed and
the picture switched to black and white at a preselected increased gain and shutter time
point. This point is either detected by the camera or by the ACUIX depending on the camera
type and can be modified in either case. The details of the operation of the TDN feature
depends on the specific camera being used.
If the camera has TDN and the IR block filter has been removed and the light level increases
beyond the TDN transition point set by the camera or the ACUIX the IR block filter will be
inserted and the picture is returned to color.
For all cameras with manual exposure control (also referred to as manual iris control) the
same sequence is followed when increasing and decreasing manual exposure control.
When in manual exposure control the TDN function is also controlled manually, however, it
remains independent of the manual exposure control.
If the unit is powered down then back up, the ACUIX comes back up in the iris mode it was
in when it was powered down.
The lens auto focus feature can be set to adjust automatically when the zoom setting
changes or when the pan, tilt, or zoom settings change. The lens auto focus can also be
disabled so the operator has to manually focus the lens. If the ACUIX is programmed for
either of the two auto focus settings, the operator can manually control the lens focus. The
minimum focus distance is set at 1.0 meter (3.3 ft) from the camera lens in both manual and
automatic focus modes.
Refer to Table 3-2 for information on manually controlling the camera lens features using
the HEGS5000/5001.
Table 3-2 HEGS5000/5001 Camera Lens Control
Control
Joystick Knob
Auto Iris
Iris Open
Iris Close
Focus Near/Focus Far
Function
Rotate the joystick knob clockwise and counterclockwise
for zoom in and out functions, respectively. The manual
speed of the zoom function is set through the on-screen
setup menus under Camera Options.
Places the lens in auto exposure mode.
Manually increases exposure to lighten the scene.
Manually decreases exposure to darken the scene.
Manually focuses the lens.