Normal Operation; Preliminary Control Settings - Honeywell Primus 880 Pilot's Manual

4.

Normal Operation

PRELIMINARY CONTROL SETTINGS

Table 4--1 gives the proper power--up procedure for the PRIMUS
Digital Weather Radar System.
Step
1 Verify that the system controls are in the positions
described below before powering up the radar system:
Mode control: Off
GAIN control: Preset Position
TILT control:
2 Take the following precautions, if the radar system will be
operated in any mode other than standby or forced
standby while the aircraft is on the ground:
D
D
D
D
3 If the system is being used with an EFIS display,
power--up by selecting the weather display on the
EHSI. Apply power to the radar system using either
the indicator or controller power controls.
4 Select either Standby or Test mode.
A28- - 1146- - 102- - 03
REV 3
+15
Direct nose of aircraft so that antenna scan sector is
free of large metallic objects such as hangars or
other aircraft for a minimum distance of 100 feet (30
meters), and tilt the antenna fully upwards.
Do not operate the radar system during aircraft
refueling or during refueling operations within 100
feet (30 meters).
Do not operate the radar if personnel are standing
too close to the 120_ forward sector of aircraft.
(Refer to Section 6, Maximum Permissible
Exposure Level, in this guide.)
Operating personnel should be familiar with FAA AC
20--68B, which is reproduced in Appendix A of this
guide.
PRIMUS 880 Power- -Up Procedure
R
Table 4- -1 (cont)
PRIMUS 880 Digital Weather Radar System
r
Procedure
880
R
Normal Operation
4-1