JSC FORTEZA
FORTEZA-50, 100, 200
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Page 12
7. SAFETY MEASURES
7.1.
The current safety standards for the operation with electrical facilities with the voltage up
to1000 V should be observed during mounting, preventive maintenance and repair of the
sensor.
7.2.
Cables should be laid, terminated and connected to the sockets only when the supply voltage
is OFF.
7.3.
The maximal value of the mean microwave flux density at the distance of 1 m from the sensor
is up to 1 mW/cm
2
. It satisfies safety regulations for persons, not dealing professionally with
microwave frequency.
7.4.
It is prohibited to mount and maintain the sensor at thunderstorms.
7.5
.
Installation and maintenance of the sensor must be performed only by people, who underwent
special safety trainings.
8. MOUNTING PROCEDURE
8.1.
Requirements to the protected sector preparation and the arrangement of Rx and Tx.
8.1.1
.
The sector, where Tx and Rx are located, should meet the following requirements:
a)
height of irregularities – up to +0,3m.
If irregularities 0,3m, the sensor
characteristics can become worse. Under these conditions the possibility of the sensor
usage is defined by the trial operation.
b)
grass height - up to 0,3 m;
c)
snow height - up to 0,5 m;
d)
maximum sector inclination – 20
0
;
e)
single motionless objects (e.g. posts, tree trunks without lower branches) can be situated
in the detection zone at the distance of 0,5 m minimum from the detection zone axis;
f)
moving leaves, bushes, trees and etc.
should not be situated
in the detection zone and
at the distance of 1,2 m from the detection zone;
g)
sector width of the should meet the requirements of the item 3.3;
The sensor can be mounted if the sector width is less. In this case if the «TEST» voltage (item
9.2.) is less than 1,2 V, it is necessary to change Rx and Tx position relative to the support. If
it is not effective and the «TEST» voltage is less than 1,2 V, it is necessary to conduct the
operation test and make a decision about the possibilities of the sensor operation in these
conditions according to its results.
8.2.
Sensor Mounting
8.2.1
.
Mark the perimeter for the places where the supports will be mounted. To organize the
continuous protected boundary, it is necessary to provide the overlapping of the sectors
detection zones (see fig.8.1. and 8.2). The overlapping is necessary to exclude the possibility
of the sector overcoming under or above Tx (Rx) unit near the support.
8.2.2.
Mount the supports. As supports it is recommended to use metal or asbestos-cement tubes of
70…90 mm diameter. The height of the support above the ground surface is shown in fig.6.1.
In the snowy regions the superstructure of the support should be 1500 mm minimum.
