FA

Description

Marathon FA fiber optic infrared sensors consist of a rugged fiber optic cable plus optical head assembly connected to an electronics housing containing the detector, processing electronics, internal user interface/ LED display, and termination connections for field wiring. These thermometer measures targets in highly confined installations in harsh industrial environments, otherwise inaccessible by non-fiber optic thermometers.

  • Rugged fiber optic measurement systems
  • Laser aiming available on  selected models
  • Fiber cable rated to 315ºC available on selected models
  • Programmable relay output (dual temperature setpoints or “fail-safe”)
  • Simultaneous analog and digital outputs
  • Bi-directional RS485 communications
  • Supports up to 32 Marathon Series sensors on a multipoint network
  • Windows® DataTemp software for data acquisition, display, and analysis
  • Field Calibration Software

Measurement

Models

FA1A

FA1B

FA1C

FA1G

FA2A

FA2B

Temperature Range

475º to 900ºC (887º to 1652ºF)

800º to 1900ºC (1472º to 3452ºF)

1200º to 3000ºC (2192º to 5432ºF)

750º to 1675ºC (1384º to 3047ºF)

250º to 800ºC (482º to 1472ºF)

400º to 1700ºC (752º to 3092ºF)

Spectral Response/Detector

FA1

FA2

 

1.0 µm (Si detector)

1.6 µm (InGaAs detector)

Fiber Cable Lengths

1m (3’), 3m (10’), 6m (19’), and 10m (32’)

Accuracy

FA1/FA2

FA1G

 

±(0.3%Tmeas + 2°C); Tmeas in ºC

±3ºC (±5.4ºF)

Repeatability

±1°C

Temperature Resolution

±0.05°C (±0.1°F)

Response Time

10 mSec; averaging selectable to 10 sec

Emissivity

0.1 to 1.0 in 0.01 increments

Signal Processing

Peak Hold, Valley Hold, Averaging

 

Optical:

Models                                            

  D:S*

                                                  Focus Distance

CF1    

CF2      

SF0

**FA1A     

20

4mm@102mm (0.17"@4")

15mm@305mm (0.60"@12")

76mm@1524mm(3"@60")

FA1B  

100

1mm@102mm (0.04"@4")

2.08mm@305mm (0.11"@12")

160mm@1524mm(0.62"@60")

FA1C

100

1mm@102mm (0.04"@4")

15mm@305mm (0.60"@12")

160mm@1524mm (0.62"@60")

FA1G

100

1mm@102mm (0.04"@4")

NA

NA

**FA2A

20

4mm@102mm (0.17"@4")

15mm@305mm (0.60"@12")

76mm@1524mm (3"@60")

FA2B

40

2.5mm@102mm (0.1"@4")

7mm@305mm (0.26"@12")

38mm@1524mm (1.5"@60")

*At 95% energy Recommend: Target diameter Spot size diameter >1.4 **Available with laser aiming

Electrical

Outputs

0/4–20 mA; RS-485, 2-wire/4-wire, networkable to

32 sensors; Relay (SPST 48V, 300 mA, response time

< 2 mSec)

Power Requirements

24 VDC, 250 mA, ±20%

Compliance

CE low voltage directive; EN 61326

 

General

Environmental Rating

NEMA-4 (IEC 529, IP 65)

Ambient Temperature

Electronics housing

With water cooling option

 

Fiber cable/Optical head

 

Air purge

 

0º to 60°C (32º to 140°F)

0º to 150ºC (32º to 300ºF);

2 l (0.5 gal) per minute 16ºC (62ºF)

0º to 200°C (32º to 392°F); standard temperature rating

0º to 315ºC (32º to 600ºF); high-temperature option

0.5 to 1.5 l/sec (1-3 CFM)

Storage Temperature

Electronics housing

 

-20º to 70°C (-4º to 158°F)

Relative Humidity

10% to 95% non-condensing

Shock

(Electronics Housing)

 

MIL-STD-810D (IEC 68-2-27)

Vibration

(Electronics Housing)

 

MIL-STD-810D (IEC 68-2-6)

Weight

Electronics Housing

Optical Head

 

0.71 kg (25 oz)

0.10 kg (3 oz)

Cable protection

Rated to 200°C; stainless steel armor; Viton coating,

rubber “boot”, and NEMA-4 (not available on high

temperature cable); provision for conduit to protect

fiber cable

 

  • Cement
  • Steel
  • Power
  • Pulp & Paper
  • Plastic

Fields marked with * are mandatory fields.

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