Vega PLICSRADIO T61 Wireless emitting unit Bedienungsanleitung PDF herunterladen (Seite 11)

4 Mounting

PLICSRADIO T61 • Wireless emitting unit (single channel)

32865-EN-130322

4 Mounting

4.1 General instructions

In the standard version, the PLICSRADIO T61 is designed for wall

mounting. Mounting adapters for carrier rail mounting (top hat rail

35 x 7.5 according to DIN EN 50022/60715) as well as for tube

mounting are optionally available.

Select an installation position you can easily reach for mounting and

connectingaswellaslaterretrottingofadisplayandadjustment

module. The housing can be rotated by 330° without the use of any

tools. You can also install the display and adjustment module in four

dierentpositions(eachdisplacedby90°).

Note:

During operation, a distance of at least 20 cm should be kept between

the antenna and persons working nearby. Operation of the instrument

with smaller distances is not recommended.

Mount the device at a place and at a height where there are as few

obstacles as possible between transmitter and receiver. A direct line-

of-sight connection represents the optimum for the radio transmis-

sion. The radio waves spread out in an elliptical shape between two

antennas;thisareaisalsocalledtheFresnelzone.Forthemaximum

reachof1000m(2.4GHz)or1600m(920MHz),noobstaclemay

protrude into this area. The greater the distance between the two

antennas, the larger the diameter of the ellipse. At longer ranges, the

height of the transmitting and receiving antennas must therefore be

increased to allow the radio waves to propagate unhindered within

theFresnelzone.Thefollowinggraphicclariestheseconditions;the

table gives reference values for the recommended antenna height.

Fig. 4: Spreading of the radio waves

1 Distance between transmitter and receiver

2 Radius of the Fresnel zone and min. height of the antennas

Dependenceeectiveradius-mountingheight

Eectiverange Mounting height 2.4 GHz Mounting height 920 MHz

100 m (328 ft) 1.7 m (5.577 ft) 2.9 m (9.514 ft)

250 m (820 ft) 2.8 m (9.186 ft) 4.5 m (14.76 ft)

Installation possibilities

Installation position

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 39 40

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Vega PLICSRADIO T61 Wireless emitting unit Bedienungsanleitung Seite 11