SST F120 - 13 Perform Final Operational Checkout

120-36 January, 2016
Model F120 UV/IR Flame Detector
13. Perform Final Operational Checkout
Once the ame detector has enter normal operation, a nal comprehensive output test of
all detector inputs and outputs can be performed. The test exercises all outputs, including
ALARM and DELAYED ALARM states to verify installation wiring.
!
WARNING: Do not execute the ame detector output test until all equipment connected
to the detector is properly congured to receive (and possibly ignore) alarm signals
from the detector. Failure to do so may result in an unnecessary release of re
extinguishant or unnecessary dispatching of emergency personnel.
Tools Required
• A source of UV/IR radiation such as the Model FT194 Flame Detector Test Lamp, sold
separately.
• Or if the protected area is known to be non-hazardous (meaning no ammable gases
present), you can use a suitable ame.
Checklist
Prior to starting the nal operational checkout verify the following:
• Inhibit external devices such as suppression systems which you do not want activated.
• You have veried that the wiring is correct.
• You have veried that the power supply is properly connected. If the DC voltage at the
power terminal block inside the detector is less than 20.0 VDC, the detector will report a
Power Fault.
• Verify the ame detector is properly mounted and installed. Verify the conduit/cable
gland entries are pointed downward.
• Verify the ame detector’s eld of view covers the intended area for protection
Fault Test
The Automatic Self-Check occurs when a source of ame radiation inside the front housing
is activated. This invisible test “light” shines through a tiny hole in the front cover, just in front
of the viewing window, and through the window onto the sensor elements.
To simulate a dirty lens fault, place your nger or a piece of opaque tape over the tiny hole
in the front cover, located just in front and towards the top of the viewing window.
The Automatic Self-Check is performed every 10 seconds and the detector allows another
10 seconds to complete the check. The detector will go into Fault mode within 20 seconds
and the following will occur:
• Yellow LED will illuminate
• 0-20 mA Loop output changes to 2 mA
• Fault relay toggles “Open on Fault” and “Closed on Fault”
At the conclusion of the Fault Test, remove any tape from the tiny hole in the front cover and
once the Automatic Self-Check turns on, the detector will return to normal operation.