Superior false alarm immunity through
multi-spectrum infrared flame detection
MSA’s FlameGard 5 MSIR Detector is an advanced
multi-spectrum flame detector designed to
provide superior false alarm immunity with
the widest field of view. The FlameGard 5 MSIR
Detector employs a state-of-the-art multi-spec -
trum infrared (MSIR) sensor array with a
sophisticated Neural Network Technology (NNT)
system. Designed to detect typical fires such as
those produced by alcohol, n-heptane, gasoline,
jet fuels and hydrocarbons, the FlameGard 5
Detector can see through dense smoke produced
by diesel, rubber, plastics, lube oil, and crude oil
fires.
The NNT flame discrimination algorithm classifies
the output signals from the MSIR sensor array as
either fire or non-fire. This MSIR/NNT combination
is highly immune to false alarms caused by
lightning, arc-welding, hot objects, and other
sources of radiation.
The electronics of the FlameGard 5 MSIR Detector
are housed in a stainless steel explosion-proof
enclosure. The detector is available with the
following output configurations:
 4–20 mA stepped output
Dual serial communications
HART communication
Warning, alarm and fault relays
The serial communication port(s) allows 128 units
(247 using repeaters) to be linked up to a host
computer using the Modbus RTU protocol. The
communication registers provide alarm status,
fault and other information for operating,
troubleshooting or programming the unit.
The continuous optical path monitoring (COPM)
self test checks both the optical path integrity
(window cleanliness) and the detector’s electronic
circuitry every two minutes.
Features and Benefits
Multi-Spectrum IR (MSIR) sensor array provides increased range and a wide field of view
Neural Network Technology (NNT) provides superior false alarm immunity
Continuous Optical Path Monitoring (COPM) checks the optical path integrity and the detector’s electronic circuitry
Multiple communication outputs provide versatility for use in a variety of applications
Event logging is a standalone diagnostic tool
Test mode can be used with a test lamp to check all outputs
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Applications
Drilling and Production Platforms
Gas Turbines
LNG/LPG Processing and Storage Facilities
Fuel Loading Facilities
Compressor Stations
Electrostatic Paint Spray Booths
Aircraft Hangars
Refineries
Chemical Plants
Ordering Codes
5MSIR-1013211 - FlameGard 5 MSIR, Dual Modbus, 0 –20 mA, No relays
5MSIR-2513211 - FlameGard 5 MSIR, Dual Modbus, 0 –20 mA, Relays, Non-Energized
5MSIR-2613211 - FlameGard 5 MSIR, Dual Modbus, 0 –20 mA, Relays, Energized
5MSIR-3513211 - FlameGard 5 MSIR, Single Modbus, HART, 3.5 –20 mA, Relays, Non-Energized
5MSIR-3613211 - FlameGard 5 MSIR, Single Modbus, HART, 3.5 –20 mA, Relays, Energized
Data Sheet
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Safety
