1 Model Range & Characteristics

The all‐new Fike family of optical flame detectors offers superior immunity to false alarms, enhanced speed of response and are available with or without an integral high‐definition (HD) video camera.

The updated Fike family looks and feels the same as previous devices, but the portfolio has been widened to tackle more challenging applications and to provide additional capabilities, like expanded reporting, system interface & diagnostics. We have also developed a new color scheme in recognition of the energy transition market for our FIK‐IR3‐H2 and FIK‐IR3‐H2‐HD detectors.

The HD detector version provides high‐definition (HD) video output of the monitored area with clear imaging of any fire event and personnel at distances up to 100 ft (30m). This allows the rescue team to be aware of the exact situation before entering the hazardous area.

The HD units automatically record any fire event for 1 minute before and up to 3 minutes after the alarm. These features and the built‐in event logger provide additional means to study the cause and development of fire events for “lessons learned” reviews.

The following table lists the range of Fike detector models, each with its maximum detection distance and typical response times. All Fike models are suitable for use in indoor and outdoor applications.

Fike Flame Detector Models

IR3-HD

IR3/IR3-HD

Distance

262 ft (80m)
1x1 n‐heptane

Average Response Time

40 ms to fast fire burst or explosion
1.3 s @ 50 ft (15m)
4.1 s@ 230 ft (70m)

Description

Triple IR (IR3) – targeted for all hydrocarbon and other organic fires.
Offers the highest immunity to false alarms.

UVIR Detectors

IR3-H2/IR3-H2-HD

Distance

100 ft (30m)
32” (0.8m) H2 plume

Average Response Time

40 ms to fast fire burst or explosion
1.6 s @ 66 ft (20m)
4 s@ 100 ft (30m)

Description

Adapted IR3 detector, fast response for hydrogen (H2), methane, hydrogen blended natural gas streams, methanol, ammonia, and silane fires.
Offers the highest immunity to false alarms.

UV-IR

UV‐IR/UV‐IR‐HD

Distance

100 ft (30m)
1x1 n‐heptane

Average Response Time

5 ms to fast fire burst or explosion
1 s @ 50 ft (15m)
<2 s@ 100 ft (30m)

Description

Fast Response, combined UV/IR.
Detects hydrocarbon and non‐hydrocarbon fires like hydrogen.
Additionally, it offers spark & arc detection.

2 Comparison of Fike Detector Types


Each Fike detector uses Triple IR (IR3) or combined Ultraviolet and Infrared (UV‐ IR) detection technologies. IR3 detectors offer superior immunity to false alarms as well as high sensitivity and speed of response. The UV‐IR detectors respond to a wider range of fire types.

When choosing a flame detector for a certain application, one should consider detection distance, speed of response, and the detector’s immunity to false alarms.

Other factors to consider include proximity to flares, hot objects, and the presence of airborne contaminants. Care should be taken to ensure objects do not obscure the detector’s direct line of sight.


 Model

Applications

Advantages

Comments

Triple IR

IR3

IR3-HD

Hydrocarbon fires. Suitable for use indoors and outdoors

Fast speed of response Highest sensitivity

Highest immunity to false alarms

Unaffected by solar radiation

Embedded camera option available 

The number one choice for hydrocarbon fires.

Superior sensitivity, speed of response, and false alarm immunity.

Not suitable for nonhydrocarbon fires. 

Triple IR - hydrogen

IR3-H2

IR3-H2 HD 

Hydrogen, ammonia, silane, and methanol fires.

Suitable for use indoors and outdoors. 

Detects invisible

Hydrogen flames

Fast speed of response

Longer detection range

Highest false alarm immunity

Unaffected by solar radiation

Embedded camera option available 

Superior sensitivity, speed of response, and false alarm immunity for nonhydrocarbon‐ based fires. 

Combined UV-IR Hydrocarbon & non-hydrocarbon fires

UV-IR

UV-IR-HD 

Hydrocarbon, nonhydrocarbon, and metal fires.

Suitable for use indoors and outdoors. 

Fast speed of response

Moderate sensitivity

Low false alarm rate

Unaffected by solar radiation

Embedded camera option available 

 Good all‐round detector responding to the widest range of fuel types. Ultrafast response to fireballs and explosions. Affected by electrical arcs, welding, and corona.
 

Combined UV-IR Hydrocarbon fires

UV-IR-F

UV-IR-F-HD 

Hydrocarbon fires.

Suitable for use indoors and outdoors. 

Fast speed of response

Moderate sensitivity

Low false alarm rate

Unaffected by solar radiation

Embedded camera option available 

Ultrafast response to fireballs and explosions. Affected by electrical arcs, welding, and corona. Not suitable for nonhydrocarbon fires. 

3 Operation


The following table lists maximum detection distances for the different Fike Detectors across a range of fuels when used in extreme sensitivity:


Fuel Fire size

Pan fire

IR3 & ‐HD ft. (m)

IR3 CO2L & HD ft. (m)

IR3‐H2 & HD ft. (m)

UV‐IR & HD ft. (m)

UV‐IR‐F & HD ft. (m)

n‐Heptane

1 ft2 (0.1 m2)
Pan Fire

262 (80)

262 (80)

Not Suitable

98 (30)

98 (30)

Gasoline

230 (70)

230 (70)

Not Suitable

98 (30)

98 (30)

Diesel

164 (50)

164 (50)

Not Suitable

75 (23)

75 (23)

JP5

164 (50)

164 (50)

Not Suitable

75 (23)

75 (23)

Kerosene

164 (50)

164 (50)

Not Suitable

75 (23)

75 (23)

Ethanol

125 (38)

Not Suitable

Not Suitable

62 (19)

72 (22)

Isopropanol

180 (55)

180 (55)

Not Suitable

75 (23)

75 (23)

Methanol

131 (40)

Not Suitable

59 (18)

52 (16)

59 (18)

Hexane

230 (70)

Not Tested

Not Suitable

98 (30)

98 (30)

Methane

32” (0.8 m)
Plume Fire

148 (45)

Not Suitable

66 (20)

59 (18)

59 (18)

LPG

180 (55)

Not Suitable

Not Suitable

75 (23)

75 (23)

Hydrogen

Not Suitable

Not Suitable

98 (30

66 (20)

Not Suitable

Syngas 70%

98 (30)

Not Suitable

82 (25)

59 (18)

33 (10)

H2/30% CH4

98 (30)

Not Suitable

82 (25)

59 (18)

33 (10)

Ammonia

Not Suitable

Not Suitable

56 (17)2

Not Tested

Not Suitable

Silane

Not Suitable

Not Suitable

56 (17)2

20 (6)2

Not Suitable

Arsine

 

Not Suitable

Not Suitable

56 (17)2

20 (6)2

Not Suitable

Phosphine

 

Not Suitable

Not Suitable

56 (17)2

20 (6)2

Not Suitable

Polypropylene

1 ft2
(0.1 m2)
Pan Fire

115 (35)

115 (35)

Not Suitable

49 (15)

49 (15)

Wood/Office Paper

137 (42)

131 (40)

Not Suitable

33 (10)

33 (10)

Sulfur

Not Suitable

Not Suitable

Not Suitable

UV only 23 (7)

UV only 23 (7)

4 Expanded Detection Capabilities By Application

 

4.1 The CO2L Model – for the IR3 & IR3 HD Detector Only

 

Fike has developed a special IR3 configuration for applications where the exhaust (combustion) gases of engines and turbines are known to cause false alarms for competing devices.

 

This detector configuration, known as CO2L mode, is ideally suited to the detection of heavy hydrocarbon fuels in applications such as road & raid tanker loading racks, aircraft hangars, airport gate / jetty protection, as well as helidecks and helipads where helicopter engine downdraft is a potential false alarm source.


Fuel 

Pan Size

Distance in Feet (m)

Average Response Time (Seconds)

 NHeptane  1 x 1 ft  262 (80)  4.2
 Gasoline  1 x 1 ft  230 (70) 3.2 
Diesel   1 x 1 ft  164 (50)  3.6
JP5  1 x 1 ft   164 (50) 3.6 
JP5   2 x 2 ft  262 (80)  10.3 
Kerosene   1 x 1 ft  164 (50) 3.5 
Polypropylene   1 x 1 ft  115 (35) 3.3 
IPA   1 x 1 ft  180 (55) 2.5 
Wood   1 x 1 ft  131 (40) 5.0 

4.2 The X5 Variant – for All Fike Detectors

“Flame Detection” can provide coverage for a wide range of different fire types, solid, liquid, and gaseous. The challenge is that no one flame detector can respond to every fire type in sufficient time to limit the escalation to a point where significant damage has been caused. That is why the Fike family is now available with an X5 variant. The X5 variant is FM‐approved for fast‐evolving or moving fires. These fires may be caused by a release from pressurized paint, a solvent cloud contacting an ignition source, a fire moving on a conveyor, etc.

NFPA 33 defines a list of requirements for Spray Application Using Flammable or Combustible Materials. The 2018 Edition, section 9.9.1, specifically requires “automated liquid electrostatic spray application equipment, both listed and unlisted, shall be further protected by listed optical flame detection, installed, and supervised in accordance with NFPA 72. In the event of ignition, the optical flame detection shall react to the presence of flame within one‐half (0.5) second.” The X5 variant complies with NFPA 33.

4.3 Spark & Arc Detection

In electrical installations such as high‐voltage direct current (HVDC) systems, static var compensators (SVC), flexible AC transmission systems (FACTS) and their valve halls, and numerous others, the ability to detect sparks and electrical arcs, in addition to fire can be valuable in protecting assets.

The presence of sparks and electrical arcs is usually a precursor to a more serious event, such as a fire. We at Fike have enhanced the capabilities of all our Fike UV‐IR( HD) and UV‐IR‐ F(‐HD) detectors to generate an additional signal, either via the 4‐20 mA signal or an auxiliary relay to indicate the presence of sparks and arcs (high UV levels) in addition to a flame detected signal.

If HD variants are used, spark and arc detection will also initiate the pre‐ and post‐event video recording to aid incident analysis.

5 Summary of Fike Family Features

The table below lists the standard features of the Fike detector family.