b)
Select Gain
Select a gain from the table for the required path. Set the gain of the
receiver head, select [Test/Eng] -> [Gain] and enter gain value.
CAUTION:
On changing the gain of the beam receiver,
do
not:
❑
power-down the control panel
❑
or reset the local controller card
❑
or reallocate or reset the loop having beam sensors
until
gain changed acknowledge
followed by the
gain number
is display. Otherwise a ‘Memory corrupt’ message will appear
on the display.
Gain Distance
6-9
29-33
56-60
2m
10m
100m
Course
adjustment
c)
Use the [Align] function in the [Test/Eng] menu and enter the two
sensor head addresses. 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.
d)
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.
e)
Repeat d) for the receiver head, to obtain a maximum flash length.
Time averages
f)
Using the [Info] menu, read the time averages on channel 2 of the
receiver head, this should be between 140-170. After each adjustment
wait for 5 seconds for a change in the reading.
NOTE:
For time average reading above 200 bits, carry out an
[Autogain]
using the
[Test Eng]
menu. This will minimise the fine adjustment.
CAUTION:
Never [Autogain] a range of outstations.
VIG-BEAM Beam sensor
Select Gain
Vigilon Sys tem Com mis sioning