Honeywell SPZ-8000 - Maximum Permissible Exposure Level (MPEL

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
PRIMUS
R
870 Weather Radar
C--18
MAXIMUM PERMISSIBLE EXPOSURE LEVEL (MPEL)
Heating and radiation effects of weather radar can be life threatening.
Personnel should remain at a distance greater than R from the radiating
antenna in order to be outside the envelope in which radiation exposure
levels equal or exceed 10 mW/cm
2
, the limit recommended in F AA
Advisory Circular AC No. 20--68B, August 8, 1980, Subject:
Recommended Radiation Safety Precautions for Ground Operation of
Airborne Weather Radar . The radius, R, distance to the maximum
permissible exposure level boundary is calculated for the radar system
on the basis of radiator diameter, rated peak--power output, and duty
cycle. The greate r of the distances cal cula ted for either the far--field or
near--field is based upon the recommendations outlined in AC No.
20--68B.
The American National Standards Institute, in their document ANSI
C95.1--1982, recommends an exposure level of no more than 5
mW/cm
2
.
Honeywell Inc. recommends that operators follow the 5 mW/cm
2
standard. Figure C--5 shows the MPEL for PRIMUS
R
870 radar power.
Maximum Permissible Exposure Level Boundary
Figure C--5