Det-Tronics X3302 Multispectrum IR Flame Detector - Manual (Page 6)

95-8576 4 9.2
GENERAL APPLICATION INFORMATION
RESpONSE ChARACTERISTICS
Response is dependent on the detector's sensitivity
setting, distance, type of fuel, temperature of the fuel,
and time required for the fire to come to equilibrium. As
with all fire tests, results must be interpreted according
to an individual application.
See Appendix A for third-party approved fire test results.
Additional fire test results are available from Det-Tronics
IMpORTANT AppLICATION CONSIDERATIONS
In applying any type of sensing device as a fire detector,
it is important to know of any conditions that can prevent
the device from responding to fire, and also to know
what other sources besides fire can cause the device to
respond.
Welding
Arc welding should not be performed within 20
feet (6.0 m) of the detector configured to very high
sensitivity, within 15 feet (4.6 m) at high sensitivity,
within 10 feet (3.0 m) at medium sensitivity, or within 5
feet (1.5 m) at low sensitivity. Gas welding mandates
system bypass, since the gas torch is an actual fire.
Arc welding rods can contain organic binder materials
in the flux that burn during the welding operation
and are detectable by the X3302. Welding rods with
clay binders do not burn and will not be detected
by the X3302. However, system bypass is always
recommended, since the material being welded may
be contaminated with organic substances (paint, oil,
etc.) that will burn and possibly cause the X3302 to
alarm.
Artificial Lighting
The X3302 should not be located within 2 feet (0.6 m)
of artificial lights. Excess heating of the detector could
occur due to heat radiating from the lights.
EMI/RFI Interference
The X3302 is resistant to interference by EMI and RFI,
and is EMC Directive compliant. It will not respond to a 5
watt walkie-talkie at distances greater than 1 foot (0.3 m).
Do not operate a walkie-talkie within 1 foot (0.3 m) of the
X3302.
Carbon Containing Fires
The X3302 is a multiple spectrum IR device with detection
limited to flames that produce water vapor as a by-product
of combustion. These include hydrogen, ammonia,
arsine, silane, and light hydrocarbons such as methane
and methanol. Some lighter carbonaceous fuels may be
detectable by the X3302, but heavier carbon containing
substances that burn with a dark yellow-orange flame
and emit dense sooty smoke may not be sensed with this
device. Other fuels that are not detectable include sulfur
and burning metals.
IMPORTANT SAFETY NOTES
WARNINg
Do not open the detector assembly in a hazardous
area when power is applied. The detector contains
limited serviceable components and should never
be opened. Doing so could disturb critical optical
alignment and calibration parameters, possibly
causing serious damage.
CAUTION
The wiring procedures in this manual are intended
to ensure proper functioning of the device under
normal conditions. However, because of the
many variations in wiring codes and regulations,
total compliance to these ordinances cannot be
guaranteed. Be certain that all wiring complies
with the NEC as well as all local ordinances. If
in doubt, consult the authority having jurisdiction
before wiring the system. Installation must be
done by a properly trained person.
CAUTION
To prevent unwanted actuation or alarm,
extinguishing devices must be disabled prior to
performing system tests or maintenance.
CAUTION
The multispectrum IR flame detectors are to be
installed in places where the risk of mechanical
damage is low.
ATTENTION
Remove the protective cap from the front of the
detector before activating the system.
ATTENTION
Observe precautions for handling electrostatic
sensitive devices.