CIAS Elettronica S.r.l. CORAL-PLUS, Installation Handbook

Page: 62 / 72

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CIAS Elettronica S.r.l. Ed. 1.5
Installation Handbook page 61 of 66 CORAL-PLUS
k. By setting function switch SW1 to position 3 , it is possible to read or modify the barrier
operating parameters, Masking, Sensitivity , type of Response . The Alarm, tamper and
Fault led change function in this mode and indicate the values of the parameters stored
in the barrier.
The alarm and masking thresholds are set with values one higher than the quiescent
value of the received signal and one lower. They then determine if, at the end of the
signal processing, the variation in received signal is sufficient to create an alarm.
To Read the actual value of the parameter:

Rotate switch SW4 (MASK) until the first Green led (D6) comes on.

Rotate switch SW5 (SENS) until the second Green led (D5) comes on.

Rotate switch SW6 (RSP) until the third Green led (D4) comes on.
The values read on these three switches indicate the values of the parameters
in use by the barrier.
To Modify the actual alarm threshold values:

Rotate the SW4 (MASK), SW5 (SENS) SW6 (RSP) switches to the required values.

Push S3 to memorise the new threshold values.
The Masking thresholds are above and below the field value, which is stored during
Parameter Acquisition (SW1 in position 2, see point “j”).
They monitor slow changes in the received signal to see if they are big enough to change
the detection performance of the barrier.
These changes can be caused, for example, by snow accumulation along the protected
area or by attempts to circumvent the barrier operation.
Adjustment of the sensitivity of this function is via switch
SW4 (default =
“8”).
To decrease the sensitivity set a lower value:
“7”, “6”, “5”, “4”, “3”, “2”, “1”, “0”.
The value
“0”
will disable this function.
To increase the sensitivity set a higher value:
“9”, “A”, “B”, “C”, “D”, “E”, “F”.
Values that are too high can generate false alarms.
It is possible to set the
Sensitivity of the barrier using switch SW5 . The default setting is
“7”
and represents the optimum setting for most situations.
To
increase the sensitivity set this switch to a higher value, such as:
“8”, “9”, “A”,
“B”, “C”, “D”, “E”, “F”
. To decrease the sensitivity set this switch to a lower value,
such as:
“6”, “5”, “4”, “3”, “2”, “1”, “0”
.
Changes made to the sensitivity using SW5 have an effect on the dimensions of
the sensitive area
, therefore an excessive increase in the sensitivity can lead to an
increase in unwanted alarms, while an excessive decrease in sensitivity can reduce the
ability of the barrier to detect real intrusions.