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PRIMUS
R
660 Digital Weather Radar System
A28–1146–111
REV 2 3-13
Operating Controls
6 TILT
The TILT knob is a rotary control that is used to select the tilt angle of
antenna beam with relation to the horizon. CW rotation tilts beam upward
0_ to 15_; ccw rotation tilts beam downward 0_ to –15_. The range
between +5_ and –5_ is expanded for ease of setting. A digital readout
of the antenna tilt angle is displayed on the EFIS.
WARNING
TO AVOID FLYING UNDER OR OVER STORMS, FREQUENTLY
ADJUST THE TILT TO SCAN BOTH ABOVE AND BELOW YOUR
FLIGHT LEVEL.
7 LSS (LIGHTNING SENSOR SYSTEM) (OPTIONAL)
The LSS switch is an optional four–position rotary switch that selects
the LSS operating modes described below:
D OFF – In this position all power is removed from the LSS.
D SBY (Standby) –In this position the display of LSS data is inhibited,
but the LSS still accumulates data.
D LX (Lightning Sensor System) –In this position the LSS is fully
operational and it displays LSS data on the indicator.
D CLR/TST (Clear/Test) –In this position, accumulated data is
cleared from the memory of the LSS. After 3 seconds the test mode
is initiated in the LSS.
8 SLV (SLAVE) (DUAL INSTALLATIONS ONLY)
The SLV annunciator is only used in dual controller installations. With
dual controllers, one controller can be slaved to the other by selecting
OFF on that controller only, with the RADAR mode switch. This slaved
condition is annunciated with the SLV annunciator. The slave mode
allows one controller to set the modes of the RTA for both sweep
directions. In the slave mode, all EFIS WX displays are indentical and
updated on each sweep.
With dual controllers, both controllers must be off before the radar
system turns off.