Chapter 2: Front panel programming
P/N 3102351-EN • REV 005 • ISS 28DEC18 93
Description
realarm% Set the nighttime prealarm percentage to Off or 50, 55, 60, 65, 70, 75, 80, or 90 percent.
This is the amount of smoke that indicates a prealarm event before an actual alarm event is
indicated. The percentage is based on the sensitivity level selected above. For example, if
you select normal sensitivity and select 50 percent for prealarm, when smoke levels reach
50% of the normal smoke level required to initiate an alarm, a prealarm event will be
indicated.
Set to the type of base (standard, relay, isolator, or sounder) being used with the detector.
This option controls the conditions that will activate the relay or sounder detector base.
Select from the following values.
Note: For PS/PD, PHS/PHD, IPHS, and SD detectors configured as “Supervisory Non-
latching” device type or for PCOS/PCD detectors (smoke element) configured as “Smoke
Supervisory Non-latching” device type, if the base is Relay/Sounder, then the follow type
option cannot be configured as “Head.” The default follow type in this case is “Alarm.”
Head: The base is controlled by the detector’s settings:
• The base activates when the detector goes into alarm, unless the detector is set for
alarm verification.
• If the detector is set for alarm verification, the base activates when the detector goes
into alarm verification. It does not restore, however, until the alarm restores.
• The base does not respond when the detector goes into prealarm no matter how the
detector is configured. Also, the base only follows the primary element of a dual
element detector. Any activation from a secondary element does not trigger the base.
Example: When a PCOS/PCD on a sounder base has a follow set to Head, the base is
only triggered when a smoke event is generated. The base does not trigger when a CO
event is generated.
Riser: The base is triggered individually by the panel (sounder bases only)
None: A correlation group triggers the base. The option “None” can be applied to both relay
and sounder bases, and is used for relay bases configured as latched output devices.
Note: All base follow settings except Head and Riser can be activated by correlation
groups.
Alarm: The base activates its relay when the detector goes into alarm. The base will not
restore until the alarm event has been restored. Any activation from a secondary element
(Active3) does not trigger the base. For CO device operation, see Follow CO below.
Alarm and verify (ALM+VFY): The base activates its relay when the detector goes into
alarm verify and continues when th
e detector goes into alarm. The base will not restore until
both events have been restored.
Alarm and prealarm (ALM+PALM): The base activates its relay when the detector goes into
prealarm and continues when the detector goes into an alarm. The base will not restore
until both events have been restored.
This option controls the conditions that will activate relay or sounder detector bases. Select
Yes to allow the device’s secondary element (example CO) to activate the base
programmed functions.
Note: This option is not available for base follow types of Head, Riser, or None.
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