Det-Tronics ATX10 Transmitter - Manual (Page 25)

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5. Once the RECORDED data represents the desired
profile, navigate to the SAVED PROFILE menu.
The SAVED PROFILE menu provides a preview of
several slots for permanently storing the RECORDED
profile. Navigate to a slot to overwrite. (Use SLOT 1
for a new unit).
PROFILE MODE
ALARM MODE LEVEL/LEARN
LEVEL (dB)
SENSITIVITY (dB)
BAND COUNT
DELAY (SEC)
RECOVER (SEC)
LEARN MENU
PREALARM ON
PREALARM LVL
LEARN MENU
LEARN ENABLED?
START LEARN
STOP LEARN
RECORDED
CLR RECORDED
ALARM PROFILE
SAVED PROFILE
SAVED PROFILE
NAME
DATE
TIME
6. Select the slot. The menu that appears shows the
options of SELECT and SAVE. First select SAVE
to copy the RECORDED profile into the SAVED
PROFILE slot. Select SELECT to tell the ATX10 to
use this SAVED PROFILE slot as its profile for the
alarm function.
7. Navigate back to the LEARN MENU and confirm
that the selected slot’s name appears as the ALARM
PROFILE.
8. Return to the PROFILE MODE menu and set the
following parameters as desired:
SENSITIVITY (dB) - The actual alarm threshold used
in each band is a combination of the profile and
this fixed offset. (i.e. a value of 3 would mean each
band is counted towards alarm if it exceeds a level
3 higher than its corresponding level in the profile).
RECOVER (SEC) – This setting specifies the time (in
seconds) that elapses from the moment the alarm
criteria are no longer met until the alarm is cleared.
BAND COUNT – Similar to Basic and Profile-Level
operation, the band count can be adjusted in
Profile-Learn
. It is preferable to leave the count at
the default of 14 or perhaps somewhat higher in
Profile-Learn
mode, since a large sensitivity gain is
already realized with the use of a profile. A lower
band count may make the detector susceptible to
narrow band false alarm sources.
PREALARM CONFIGURATION
The PREALARM option is available in Profile-Level/Learn
mode (not Basic), and can be configured as follows
through the PROFILE MODE menu.
1. Set PREALARM ON to ‘Y’
2. Set PREALARM LVL.
The alarm threshold for each band is lowered by this
value, effectively making the band more sensitive.
PREALARM is intended to be more sensitive than
the normal alarm and can be used as a warning that
a potential alarm condition may be imminent.
The number of bands that exceed this lower
threshold are counted. When they reach the BAND
COUNT setting used for normal alarms, PREALARM
will annunciate, resulting in a 16 mA output.