PRASTEL 4PH200A Manual Del Usuario página 9

4PH200A
ATTENTION: SELECT NON-ADJACENT FREQUENCIES FOR BEAMS IN THE SAME SECTION (E.G.: CH1-
CH3, CH2-CH4, CH1-CH4). IF THERE ARE MORE THAN 2 BEAMS ON THE SAME SECTION, CROSS
OVER THE TRANSMITTERS AND RECEIVERS SO THAT THERE IS NO INTERFERENCE BETWEEN
ADJACENT FREQUENCIES.
Below some examples are shown of installations with several pairs of beams, with the indication of the lay-out
and the channel to set for the various pairs
Three pairs in a line
TX CH1
Two overlapping pairs
TX CH1
TX CH3
10. OPTIC ALIGNMENT
1. Power the transmitter and the receiver
2. Look through the alignment finder on the receiver and adjust the vertical and horizontal angle until the
transmitter is located in the centre of the finder.
Optic finder for
alignment
3. Connect a voltmeter with 10VDC end of scale to inputs Monitor (+) and Monitor (-) on the receiver (see
fig. 1)
4. Position the attenuation sheet provided on the upper pair of lenses of the TX and of the RX.
RX CH1 RX CH1
RX CH1
RX CH3
Horizontal adjustment
(fine)
Vertical adjustment
ENGLISH
TX CH1 TX CH3
Four overlapping pairs
TX CH1
TX CH3
RX CH2
RX CH4
(rough)
IS4PH200A_11_15.doc
RX CH3
RX CH1
RX CH3
TX CH2
TX CH4
Vertical adjustment
(fine)
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