Embraer EMB145 Operation Manual page 2578

NAVIGATION AND
AIRPLANE
COMMUNICATION
OPERATIONS
MANUAL
LSS OPERATION
The Lightning Sensor System is controlled through a dedicated control
knob, located on the Weather Radar Control Panel. The Lightning
Sensor System Control knob provides control functions and operating
modes management for proper Lightning Sensor System operation.
The Lightning Sensor System detects both visible and invisible high
energy electromagnetic discharges (lightning), indicating areas of
turbulent activity and displaying such information on the MFDs.
The Lightning Sensor System may be operated with the Weather
Radar System turned on or off. If the Weather Radar is turned off, the
LSS Range Selection is done through the MFDs knobs.
When power is first applied to the system, a self-test is automatically
performed and, in the event of failure, an amber LX/F will be displayed
on the MFDs. The LSS also performs self-calibration each time the
system is turned on. The green LX/C annunciation is removed after
calibration is completed. Strong interfering signals outside the aircraft,
or equipment malfunction may prevent the calibration of the system, in
which case the ¨C¨ will not be removed from the display. If the ¨C¨ is
removed after takeoff, this means that only outside interference was
preventing calibration. In this case the LSS should be switched off and
set back to LX mode to force recalibration for greater accuracy. If the
¨C¨ persists after takeoff, a test should be performed.
LSS OPERATING MODES AND FUNCTIONS
STANDBY MODE (STBY)
When the Standby Mode is selected, no lightning data is shown on the
MFDs. However, the receiving and processing equipment is active and
lightning strikes are being counted and accumulated into areas.
Page Code
2 01
2-18-50 MARCH 30, 2001