Change 4 4-18.1/(4-18.2 Blank)
CONTROL FUNCTION
Focus Control Used to manually set focus.
CAGE Commands the TFU to a particular
pointing angle with respect to the
aircraft centerline.
POLARITY Toggles thermal image polarity
from white-hot or black-hot,
representing hot scene objects.
White-hot is the recommended
polarity.
FOC IN Acts only on the IR sensor.
Manually adjusts the focus for
operational work.
FOC OUT Acts only on the IR sensor.
Manually adjusts the focus for
operational work.
IP/HH Toggles between inertial pointing
mode and heading hold mode.
Gain and level Gain sets system sensitivity, while
control level is used to position a selected
span of temperatures relative to all
temperatures in the scene.
GAIN UP Higher gains represent narrower
spans of temperatures.
GAIN DN Lower gains represent wider spans
of temperatures.
LVL UP In the recommended white-hot
mode, higher levels settings are
needed to view detail in darker
(cold) areas.
LVL DOWN In the recommended white-hot
mode, lower level settings are
needed to view detail in brighter
(hot) areas.
AUTO-GAIN Selects automatic control of system
gain and level (temperature offset).
The system automatically adjusts
the FLIR image with near optimum
scene contrast for general purpose
viewing, and as a starting point for
manual adjustment.
Pointing Control Used to manually control TFU
movement.
4.6.3 Starting Procedure.
1.
FLIR PWR switch -ON.
2.
MFD FLIR switch -Press.
NOTE
The start-up BIT is performed at power up and the RDY indicator should be displayed in the right end of the upper status bar. If FAULT is displayed the system has detected a problem and should be checked by main-tenance personnel.
Allow three to .ve minutes for system to reach operating temperature. Do not move controls until RDY is displayed.
3.
Adjust MFD BRT knob.
4.
Use the pointing control to con.rm up/down and left/right operation of the TFU. As soon as inputs are received from the pointing control the system will switch from cage mode to iner-tial pointing mode.
5.
Any mode can now be selected and controls can be adjusted to suit operational needs.
4.6.4 Modes of Operation.
4.6.4.1 BIT Mode. The start up BIT is performed at power up and the READY indication should be displayed in the right end of the upper status bar (Figure 4-7). If FAULT is displayed the system has detected a problem. See the appropriate maintenance manual.
4.6.4.2 Menu Operation. Menus are accessed and ma-nipulated with the MENU, HOOK, and LOCK switch and the pointing control located on the HCU. The menus are organized into two basic pages (Figure 4-8), with additional sub-menus that are presented at the appropriate time by a 9>9 to indicate that a sub-menu exists. The menus contain one or more labels, the labels are highlighted one at a time. If a label can not be highlighted or does not appear, then that function is not currently available. The HOOK func-tion is used to select or change parameters and to open sub-menus. The LOCK function is used to execute a change or selection and close the menus.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：UH-60Q 直升机技术手册 直升机操作手册 1(129)
