Model 3100 Series Flame Detector (11/04)
Page: 1
Instruction Manual
FIGURE 1-1: Model 3100 Series Flame Detector
1. PRODUCT DESCRIPTION
1.1 Introduction
All versions of the Model 3100 Flame Detector Se-
ries utilize Ultraviolet, Infrared and Visible spectrum
to provide continuous and reliable flame detection.
The microprocessor in the Model 3100 is config-
ured with state-of-the-art fire algorithms and con-
tinuously analyzes the data from the sensor array
for individual intensity values, change of intensity
values, relationship of intensity values and frequency
signature correlations. Each algorithm is designed
to recognize a different type of flame signature from
the detectors while rejecting common false sources.
When the conditions of any one of the several fire
algorithms are met the Model 3100 declares a fire.
1.2 Fault Diagnostics
The micro-processor is also continuously perform-
ing system tests looking for any faults which would
impair its ability to accurately detect a flame and
declare an alarm. The systems being tested include:
input power, sensor circuits, relay circuits, and sev-
eral other internal systems. The Model 3100 Flame
Detector also performs a through the lens test of
the sensor and lens systems. All faults are recorded
in non-volatile memory and may be retrieved by a
trained technician.
1.3 Configuration
The Model 3100-01 has a Fire Relay and a Fault
Relay which may be connected as normally open or
normally closed contacts. Models 3100-02, -03, -
04, and -05 have in addition to the Fire and Faults
relays a Fire Verify system and an Auxiliary Fault
system. The Fire Verify system adds a “field ad-
justable” level of certainty to the declaration of a
verified fire. The Auxiliary Fault system will acti-
vate the Aux. Relay for the Lens Test fault. This
allows a separate indication for the most common
fault (a dirty lens). A technician can know immedi-
ately what is wrong and how to fix it (i.e. wipe the
lens) without reading codes, consulting manuals, or
wading through a process of complex diagnostics.
The 3100-06 has an industry standard 4-20 mA out-
put and no relays.
The Model 3100 detector is mounted in a NEMA
4X explosion proof housing, rated for Class I Divi-
sion 1 & 2 Groups B, C, D, Class II Division 1 & 2
Groups E, F, G, and Class III locations. The elec-
tronics are mounted inside an aluminum cup to pro-
tect the electronics during installation. All switch
settings and indicators are located on the front of
the Model 3100 detector module allowing field ad-
justments to be made without removing the detec-
tor module from the housing.
Each Model 3100 detector is calibrated and tested
to respond to a 1 square foot Kerosene fire at 80
feet with a Field-of-View of 120°. The Model 3100
detector has four sensitivity settings and six verify
levels.
Model
Fire
Rela
y
Fault
Relay
Verify
Relay
Aux.
Relay
3100-01 X X None
None
3100-02 X X N/O N/C
3100-03 X X N/C N/O
3100-04 X X N/O N/O
3100-05 X X N/C N/C
3100-06
4-20 mA signal only
Models and Functions
