At any time you can cancel Beam Alignment
d.
Note the LEDS on the heads will flash once every 2 seconds:
•
a 1.9 seconds LED flash will be seen for a large signal
•
a 100mS LED flash will be seen for a small signal.
e.
Adjust the transmitter head in X and Y directions to obtain a long LED flash signal, allow at least 3 seconds for the flash rate to change. Then lock the adjusters
using the lock nuts.
f.
Repeat the above at the receiver head and obtain a maximum flash length.
g.
Check the time average of the receiver head is between 140-170, see section on time averages. The time average value it should be between
140-170 bits
.
After each adjustment wait for 5 seconds for a change in the reading.
"
Where a time average reading of above 200 bits is read then carry out an autogain for fine adjustment.
You will need to be at Access level 4.
h.
For fine adjustment unlock the lock nuts to allow Y axis adjustment and using the adjusters move the transmitter head in Y direction, then:
•
stop on reaching a time average reading 5 bits below the peak value
•
while counting the number of turns, adjust in the opposite direction to reach 5 bits below the peak value
•
finally turn the adjuster half the number of counted turns, towards the peak and then stop
•
secure the axis adjusted using the lock nuts
i.
Repeat h) for adjustment in the X direction.
j.
Repeat h) and I) at the receiver head.
k.
Carry out a final
Autogain
. Then recheck the time average reading is within 140 to 170 band. Back up the appropriate adjustment to the flash memory, see
page 28.
4188-949 issue 3_05/10_Nano Comms inst.
81
Nano panel based system
Appendix
C
-
o
ld
Beam
sensor
Select
Select
Engineering
Menu
Beams
>
Select
16:15 Tue 16/02/10
Warning! Selecting this option will
initiate the beam autogain procedure.
Enter Beam RX Address [ 1]
Accept
Quit
Autogain
Select
Accept
To scroll the range 1-127
Loop
>
Select
Loop
>
Select
Select
Engineering
Menu
Beams
>
Cancel
Align
Select
Select
