With the InfraRail, IRCON has successfully combined a signal conditioner and two-wire transmitter in one modular DIN-rail infrared thermometer. Now, you can integrate temperature measurement with other relays and signal conditioners already on your process line. The InfraRail infrared thermometer can be wired directly into any existing 24 volt dc power supply or can be supplied by a power supply ranging from 16 to 40 volts.
- Economical
- Miniature Sensing Head
- Standard Sensor with Focusable Fiber Optics
- Convenient, standard DIN-rail mounting
- 4-20 mA two-wire signal conditioner/transmitter
- Typical uses: OEMs and user furnace, induction heating, steel and glass applications
Basic system
Consists of one temperature sensor, electronic module, 12 feet (4 meters) of interconnecting cable and connectors, and one detailed operations manual. Complete specifications and descriptions are shown in Catalog DN-08.
This modular, signal conditioner/ transmitter combination with analog output includes on-board signal processing circuitry and controls that make it easy to correct or adjust Emissivity and/or Response Time. In addition, the Peak-Picker function allows for accurate temperature measurement when measuring an intermittent target. With three distinctly different types of sensors, the InfraRail system can adapt to virtually any temperature measurement challenge from 700 to 5000°F (375 to 3000°C). All temperature sensor heads have NEMA 4 (IP 66) rated housings. And because these sensors are powered by internal photovoltaic cells, they require no special power sources.
Choose the Type "E" miniature fixed focus lens temperature sensor for economy and basic sensing requirements. With a non-sighted focus at 30" (762mm), the Type "E" sensor measures temperatures from 1400 to 5000°F (800 to 3000°C). This sensor is only 1.25" diameter by 4" length.
Choose the Type "S" thru-the-lens, single lens reflex (SLR) focusable optics temperature sensor for more discriminating sensing requirements where pinpoint focus and aiming are essential. These sensors are available with InGaAs detectors for lower temperature applications down to 700°F (375°C) or silicon detectors for higher temperature applications from 1000 to 5000°F (550 to 3000°C).
Choose the Type "F" miniature fiber optics temperature sensor with focusable reimaging lens (covered by U.S. Patent Nos. 4919505 and 5011296) for maximum mounting flexibility. The fiber optic cable, available in lengths of 10 and 25 feet (3 and 7.6 meters), allows users to locate the IR sensing head in hard-to-reach areas or environments where sensors cannot be externally cooled. It's also ideal for electromagnetic fields.
Specifications
- System accuracy:
- @ 77°F (25°C): ±0.75% of full scale
- System repeatability:
- @ 77°F (25°C): ±0.3% of full scale
Processor module
- Response time:
- 0.01 to 10 seconds, adjustable
- Ambient temperature:
- 0 to 150°F (-17 to 65°C)
- Emissivity control:
- from 0.10 to 0.99 in 0.01 increments (digital pot)
- Peak-Picker decay rate:
- from 0.01% to 5.0% of span/sec., adjustable
- Analog output:
- two-wire, 4 to 20 mA dc linear with temperature
- Power requirements:
- 16 to 40 Vdc
- Enclosure:
- Must be shielded from liquid spray or excessive humidity - not dust-tight or drip-tight
- Mounting:
- Requires 35mm Type T Rail
- The InfraRail system meets CE directives for EMI/RF compliance:
- EMC Standards, European Electromagnetic Compatibility, Directive 89/336/EEC
- Tested to:
- EN 50081-1:1992 Generic Emissions Standard, EN 50082-1:1992 Generic Immunity Standard
Infrarail temperature sensor types
| Type | Temperature range | Spectral response | Ambient temperature range | Housing rating |
|---|---|---|---|---|
| "E" | 1400 to 5000°F (800 to 3000°C) | 0.7 to 1.0 micron | * 0 to 200°F (-17 to 93°C) without cooling | NEMA 4, IP66 |
| "S" | Silicon: 1000 to 5000°F (550 to 3000°C) ** InGaAs: 700 to 1400°F (375 to 800°C) |
Silicon: 0.7 to 1.0 micron ** InGaAs: 1.5 to 1.6 micron |
* 0 to 200°F (-17 to 93°C) without cooling | NEMA 4, IP66 |
| "F" | 1200 to 5000°F (700 to 2000°C) | 0.7 to 1.0 micron | * 0 to 200°F (-17 to 93°C) - fiber optic sensor 0 to 400°F (-17 to 200°C) - focusable reimaging lens 0 to 575°F (-17 to 300°C) - extension tip 0 to 400°F (-17 to 200°C) - fiber optic cable |
NEMA 4, IP66 |
* Some models are restricted to sensor ambient of 0 to 150°F (-17 to 65°C) and emissivity setting of 0.30. See ordering information for specific models. ** This model is restricted to ambient temperature range of 0 to 175°F (-17 to 80°C).
InfraRail GT
IRCON's Fiber Optic InfraRail GT Infrared Thermometer offers the powerful features and affordable price of the standard InfraRail Infrared Thermometer, along with the flexibility and ruggedness provided by an temperature sensor using fiber optics. The InfraRail GT's unique focusable reimaging lens sensor assembly and fiber optic cable offer the opportunity to sight on targets where direct sighting is impossible or, as in the case of glass furnaces, where extremely high ambient temperatures are present.
The Fiber Optic InfraRail GT is used to measure temperatures of the crown, side walls, breast wall, checkers and molten glass temperature in the furnace, forehearth, and runners.
- Designed Specifically For Temperature Measurement in Glass Furnace Applications
- Miniature Infrared Sensing Head
- Quick Release Mount
- Patented, Focusable Fiber Optics Reimaging Lens
- 25 ft. (7.6m) Fiber Optic Cable
- Special Mounting Devices For Glass Furnace Applications
- 4-20 mA Two-Wire Signal Conditioner/Transmitter
- Utilizes Very Stable Silicon Detector
APPLICATIONS: Glass temperature measurement in the furnace, forehearth, and runners. Temperatures of the breast wall, checkers, bridge wall, and crown.
InfraRail GT infrared thermometer components:
The Fiber Optic InfraRail GT assembly consists of:
- InfraRail DIN-rail mounted Signal Processor with response time adjustment, digital emissivity setting, peak picker, and 4 to 20 mA linear output
- Fiber Optic Infrared Sensor
- 25ft (7.6m) of Fiber Optic Cable
- Focusable Reimaging Lens
- Model AAQ-1 Quick-Release Air Purge Assembly
- Model MB-2 Angle Mounting Bracket
- Model SI-12 Inconel Sight Tube (12in.[305mm])
Optional accessories may be purchased to replace those supplied with the InfraRail GT Infrared Thermometer:
- Model SI-24 Inconel Sight Tube (12in.[610mm])
The InfraRail IR sensor operates at a 0.7 to 1.0 µm wavelength. The sensor is a rugged, inherently stable silicon photodiode with proven performance for over 40 years on glass furnace installations. The signal processor can be mounted up to 1000 ft (300 m) from the sensor and requires a simple two-wire shielded cable for transmitting the sensor signal to the indicator. The Reimaging Lens has a focal range of 10 in. to infinity (254 mm to infinity). Most components are interchangeable for easy routine maintenance. For more details, refer to InfraRail Catalog DN-08
Ambient specifications:
Temperature Limit
- Inconel Sight Tube 2000°F (1093°C)
- Focusable Reimaging Lens 400°F (200°C)
- Fiber Optic Cable 400°F (200°C)
- Fiber Optic Sensor 200°F (95°C)
Temperature Range and Resolution
- Model GT-101 1500 to 2500°F D/60
- Model GT-102 1800 to 3200°F D/60
- Model GT-103 800 to 1300°C D/60
- Model GT-104 900 to 1600°C D/60
- Model GT-105 1000 to 1400°C D/60
* Special temperature ranges are available on request.
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