Installing the Detector
44
SharpEye™
Single IR Flame Detector User Guide
•
Auxiliary BIT - No
•
EOL
–
No
•
Heated Optics
–
Auto
•
Temperature
–
41°F/5°C
3.8.1
Alarm Delay
The detector is equipped with an alarm delay option, which provides
programmable time delays with settings at:
•
Anti-flare (default)
Note:
The anti-flare 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
–
15 seconds, and is usually less than 10
seconds.
•
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.
3.8.2
Address Setup
The detector provides up to 247 addresses that can be changed with the RS-485
communication link or the HART protocol.
3.8.3
Function Setup
You can select the desired functions as detailed in Table 14.
Table 14: 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.
