2PH60C
ENGLISH
IS2PH60C_11_14
10
Three pairs in a line
Two overlapping pairs Four overlapping pairs
11.
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.
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.
5. Adjust the horizontal and vertical alignment (in that
order) both on the Transmitter and on the Receiver,
until the maximum value is obtained on the voltmeter.
6. Repeat points 4 and 5 on the lower pair of lenses.
7. Once the alignment has been checked, remove
the voltmeter and the attenuation sheets.
The table below gives the voltage values on the Monitor
terminals in the various alignment situations
(values with attenuation sheets)
Voltage on Monitor terminals
Alignment level
Over 700 mV
Excellent
Between 250 mV and 700 mV
Good
Under 250 mV
Poor
Optic finder
for alignment
Vertical adjustment
(fine)
Vertical adjustment
(rough)
Attenuation
sheet
(Receiver)
RX CH1
TX CH1
TX CH3
RX CH3
TX CH1
RX CH1
TX CH1
RX CH1
TX CH3
RX CH3
TX CH3
RX CH3
TX CH1
RX CH1
RX CH4
TX CH4
RX CH2
TX CH2
Voltmeter (-)
Voltmeter (+)
