Fire Fighting Enterprises Talentum UV/IR2 Flame Detector - Manual

This document is FD User Manual/2003/Issue 1
Flame Detector
User Manual
General
Description
The flame detector is designed for use where open flaming fires may be expected. It responds to the
light emitted from flames during combustion. The detector discriminates between flames and other
light sources by responding only to particular optical wavelengths and flame flicker frequencies. This
enables the detector to avoided false alarms due to such factors as flicking sunlight.
Electrical Considerations
The flame detector can be connected in many different electrical configurations depending on the
application. The detector requires a 24Vdc (14Vmin. to 30Vmax.) supply to operate. The detector can
be connected as a two-wire loop powered device increasing its supply current to signal that a flame
has been detected. See Fig 8. The supply connections to the detector are polarity sensitive.
Also available are volt free contacts from two internal relays RL1 (Fire) and RL2 (Fault or pre-alarm).
Using the relay contacts connected in a four-wire configuration the detector status can be signalled
back to control equipment. See Fig 9.
Removing the detector front cover provides accesses the detector terminals and configuration DIL
switch. See Fig.4.
Information in this guide is given in good faith, but the manufacturer cannot be held responsible
for any omissions or errors. The company reserves the right to change the specifications of
products at any time and without prior notice.
Alarm Response Modes
The detector is normally configured to latch into an alarm state when a flame is detected. The supply
to the detector has to be broken in order to reset the detector.
The configuration DIL switch within the detector can be set to place the detector into a non-latching
mode. The detector can then also produce proportional analogue current alarm signals i.e. 8-28mA or
4-20mA. In non-latching mode the detector only produces an alarm signal when a flame is in view
resetting itself to normal when the flame has gone.
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