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2.8.2 Alarm Delay
The detector is equipped with an Alarm Delay option, which provides programmable time
delays with settings at:
•
Antiflare* (default)
*The Antiflare mode is selected to prevent false alarms in locations where fast flares
may be present. The Time Delay for fire alarms in this mode ranges from 2.5 to 15
seconds (usually, less than 10 seconds).
Other delays settings are available:
0, 3, 5, 10, 15, 20 or 30 seconds
When an Alarm (Detection) level condition occurs, the detector delays the execution of
the Alarm outputs by the specified period of time. The detector then evaluates the
condition for 3 seconds. If the Alarm level is still present, the Alarm outputs are activated.
If this condition no longer exists, the detector returns to its standby state.
The Alarm delay option affects the output relays and the 0-20mA. The LEDs and outputs
indicate warning levels during the delay time only if the fire condition exists.
2.8.3 Address Set-up
The detector provides up to 247 addresses that can be changed with RS485
communication link or HART Protocol.
2.8.4 Function Set-up
You can select the desired functions as detailed in the following table.
Table 19: Functions
Function Setting
Alarm Latch
•
Yes: Enable Alarm latching.
•
No: Disable Alarm latching (default).
Auxiliary Relay**
•
Yes: Activate Auxiliary Relay at Warning level.
•
No: Activate Auxiliary Relay at Alarm level
(default).
Automatic BIT
•
Yes: Perform Automatic & Manual Bit (default).
•
No: Perform Manual Bit only.
Alarm BIT
•
Yes: Successful Manual Bit activates the Alarm
Relay for approximately 3 seconds (default).
•
No: Successful Manual Bit does not activate the
Alarm Relay.
Auxiliary BIT**
•
Yes: Successful Manual Bit activates the Auxiliary
Relay for approximately 3 seconds (default).
•
No: Successful Manual Bit does not activate the
Auxiliary Relay.
EOL**
•
Yes: Auxiliary Relay is used as End of Line.
•
No: Auxiliary Relay operates in accordance with
Function 2 and 5 (default).
Note
: ** only available in Model 40/40I-4XXXX and 5XXXX