Abekas AirCleaner, Руководство пользователя

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AirCleaner • User Guide 55
4. Operations
Delay Times
Menu Control Panel
With simplicity in mind, the menu system for AirCleaner consists of just three menu
trees: the Main Menu, User Memory Menu, and the Options Menu. There are two
rotary knobs that control the navigation of these menus.
Figure 4-17. Close up of AirCleaner User Interface
The left rotary knob is labeled
SELECT
and when turned will select the various menu
parameters. PUSH and HOLD down the
SELECT
knob to modify the
SET
knob
behavior; allowing the parameter values to be adjusted faster than normal. Please
refer to
refer to “Fast Adjust for Wide-Range Parameter Value Changes” on page 67
The right rotary knob is labeled
SET
and when turned will adjust the values for the
current menu parameter.
PUSH BOTH knobs together at the same time to lock out menu control. To regain
control, simply TURN or PUSH either knob and follow the simple menu instruction.
Refer to
“Locking the Control Panel” on page 69
for more information.
Delay Times
AirCleaner comes in two delay capacities. Model-1 has a maximum of 12 seconds of
audio/video delay in HD (equating to 60 seconds of delay in SD); Model-2 has a
maximum of 6 seconds of audio/video delay in HD (equating to 30 seconds of delay
in SD). This audio/video delay time is the total delay inside AirCleaner and is shared
between the two screeners during two-screener operation.
As far as control is concerned, the Video Delay is separate from the Audio delay
inside AirCleaner; so it’s possible to offset the audio-to-video timing to correct for
incoming synchronization errors. This offset parameter is adjustable in groups of
audio samples equal to 1/10 of a video frame. Refer to
refer to “PGM Audio Offset” on
page 73
for more information.
Furthermore, the total program delay time inside AirCleaner can be split up between
two separate users (or “Screeners”), so the two screeners can operate in series. When
AirCleaner is programmed to operate with two Screeners, the “Total Program Delay”
parameter determines the total delay from
PGM IN
to
PGM OUT
, while the separate
“Screener 2 Delay” parameter determines how much of the total program delay is
assigned to Screener 2 (with the balance of the delay time assigned to Screener 1).
The ratio of delay time between the two Screeners can be programmed to any ratio
desired. Please refer to the descriptions for the
“Total PGM Delay” on page 73
and
“Screener 2 Delay” on page 74
for more information.