CIAS Elettronica S.r.l.
Ed. 1.3
Installation Manual
Page
63
of
78
PYTHAGORAS 3
i. Release the vertical movement of the transmitter and carry out the operations described for
the vertical alignment of the receiver, blocking the transmission by hand instead of pushing
the button S1. At the end of this operation lock the vertical movement of both transmitter
and receiver.
j. Position the function switch
SW1 in position 2
, ensuring that during this operation there are
no obstacles or changes in the microwave field, for example that the technician is not in the
field. This is very important because during this phase the barrier acquires the value of the
modulation channel and the level of the received field and a variation in the received field at
this moment can lead to an incorrect acquisition. The acquisition of these parameters by
the receiver takes place a few seconds after the push button S1 is pressed. After about 3
seconds the quality of the alignment is indicated by the Buzzer BZ1 and leds D4, D5, D6,
which in this phase are not in their original modes of Alarm, Tamper and Fault.
The buzzer emits a certain number of tones and the led are on as indicated in the following
table.
Signal Quality
Buzzer
Led
Quality Optimum
1 Beeps
3 leds on (D4-D5-D6)
Quality Good
2 Beeps
2 leds on (D4-D5)
Quality Poor
3 Beeps
1 led on (D4)
Quality Insufficient
4 Beeps
No leds on
Quality Very Poor
5 or more Beeps
No leds on
If the alignment quality is poor or worse position SW1 in position 1, repeat all the alignment
procedures, ensuring that there are no obstacles or disturbances in the detection field,
return to this phase and push S1 again.
3
Rotate function switch
SW1 to position 3
and it is possible to read or modify the
sensitivity
and
masking
parameters and make a
Walk-Test on the microwave
. The
sensitivity value set using SW5 determines the start point for the analysis of the received
signal. The masking thresholds, set using SW4, are posted one above and one below the
field value memorised during the working Parameter Acquisition phase (SW1 in position 2
phase
“j”). These check whether any slow variations detected in the received field could
affect the performance of the barrier. These variations can be created by, for example,
progressive accumulation of snow along the zone or the produced intentionally to try to
overcome the barrier.
Reading
the current values of masking and sensitivity:
Rotate SW4 (MASK) until the first green led (D6) is on.
Rotate SW5 (SENS) until the second green led (D5) is on.
The values read on these two switches represent the actual values in use by the barrier.
The default values are
“2”
for
masking
and
“7”
for
sensitivity
Modification
of the actual alarm thresholds:
Rotate SW4 (MASK), SW5 (SENS) to the desired values.
Push S1 to memorise the new parameters. Leds D5 and D6 will come on.
Содержание PYTHAGORAS3
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