Industrial Measurement and Control

Infrared Temperature Sensors

Honeywell’s

Innovative DesignHoneywell’s Infrared Sensors are 2-wire temperature transducers/transmitters for non-contacttemperature measurement. These products represent the latest in innovative technology, integratingexclusive, advanced electronic design with optical and mechanical precision that are the essence ofHoneywell’s infrared products. The design from concept to finish is based on simplicity of installationand maintenance. The sensors, with their matchless array of options and accessories, demonstrateHoneywell’s continuing leadership in temperature measuring technology.

Universal ApplicationCompletely self-contained, the IRFF and IRLS can be used as true 2-wire temperature transducer/transmitters which produce a standard 4-20mA linear output. Powered by its current loop, eachsensor is completely compatible with any existing instrumentation for recording or process control. Arugged, stainless steel housing, miniature size and light weight make the sensors suitable for manyapplications which up to now were the exclusive domain of contact type temperature transmitters,such as thermocouples, resistance thermometers, etc. To insure minimum maintenance and utmostreliability, the sensors have absolutely no moving parts. When contained within its companioncooling jacket and air purge assembly, each sensor can withstand the most punishing conditionsfound in industry. The sensors have universal application in virtually any type of industry. Typicalapplication areas where infrared has successfully been used include: cement, ceramics, chemicals,food, glass, heat treating, metals, paper, plastics, power, printing, petrochemicals, robotics, rubber,semiconductors, textiles, vacuum systems....

IRFF SensorThe IRFF is designed to handle most demanding industrial applications. When powered by an 18 to40 Vdc supply, it provides a 4-20mA linear output for interface with indication and recordinginstrumentation. Its two-wire design simplifies installation, operation and maintenance. Screwterminals allow easy yet secure connection. The IRFF is a fixed optical system. That is, the distancebetween the sensor and the target area determines target size. It is recommended for applicationswhere target size is known and operating distance is relatively constant.

IRLS SensorThe IRLS contains all the features of the IRFF with the addedbenefit of upright through-lens sighting. The IRLS incorporates ahigh quality, high precision variable focus optical system thatallows sharp focussing on the desired focussing knob on the rearpanel of the instrument. The IRLS allows for precision pinpointingof small target areas. The user simply adjusts the instrument untilthe image is clear and the desired target is located within thereticle. The IRLS is available in three distinct versions. The first willmake accurate measurements at distances of 14 inches to infinity,the second has a working range of 6 to 14 inches and the third isdesigned to measure a target at 2 inch distance.

Key Features

• 4 - 20mA Linear Output

• 2-wire Connection

• Through-the-lensSighting (IRLS)

• Variable FocusDistance (IRLS)

• 0.5% Accuracy

• Rugged StainlessSteel Design

Industrial Measurement and ControlHoneywell1100 Virginia DriveFort Washington, PA 19034

70-82-57-13 06/05www.honeywell.com/imc

Field InterchangeabilitySuperior design not only insures accuracy and long term reliability,it also insures interchangeability between sensors of the samemodel with ±0.50% accuracy. For especially demandingapplications, the sensors have a digital emissivity control, whichcan be set with a resolution of 0.01. This insures that, should oneof the sensors need to be replaced, the replacement unit can bepreset in every aspect before installation.

Application AssistanceMany years of experience in solving unusual and difficulttemperature measurement and control problems qualify our salesand application engineering staffs to offer solutions to the mostchallenging applications encountered in industry.

Quality AssuranceReliability is never taken for granted at Honeywell. After finalcalibration, every sensor is tested and burned-in for a week andrigorously subjected to a period of thermal cycling and vibrationto verify calibration data.

WarrantyAll sensors are backed by a two-year warranty and Honeywell’sTechnical Assistance Center.

Honeywell Industrial Measurement and Control offers a completeportfolio of products and solutions for process and machinecontrol applications, including controllers, recorders, transmit-ters, actuators, smart sensors, and analytical instruments. Tolearn more about these offerings and how they can help yourorganization achieve breakthrough results, contact your localHoneywell representative, or contact us at the following phonenumbers:

U.S.: 1-800-784-3011France: 33 1 60 19 80 75Canada: 1-800-461-0013Italy: 39 02 9214 6503UK: 44 191 548 6305Spain: 34 91313.61.00Germany: 49 69 8064 336Latin America: 1-305-805-8188Asia/Pacific: 65 355 2828

For other locations, visit our website: www.honeywell.com/imc

SpecificationsAccuracy*: ± 0.5% of full scale or 1.0°C (1.80°F) whichever is greaterResolution: ± 0.1% of full scale span (FSS)Repeatability: ± 0.2% of full scale span (FSS)Emissivity: Digital setting 0.10 to 0.99 with 0.01 stepOptical System: IRLS: Non-paralex refractive optics focusablefrom rear panelField of View: IRLS: Visual sighting 40. Infrared measurement defini-tion MTS (see FOV diagram) for IRFF & optical resolution for IRLSFocussing Distance: IRLS: The different versions cover 2 inchesto infinity (adjustable for sharp focussing on target)Eyepiece: IRLS: Dioper typeInput voltage: 24 Vdc nominal (range: 18-40 Vdc)Output Current Span: 4-20 mA linear standardMin. Output Current: 3.8 mAMax. Output Current: 32 mAResponse Time: 50mS for Spectral Response of 0.78-1.6 microns100 mS for all others. Response time defined as time required foroutput to reach 95% of its final value.Load Resistance Max: 400 ohms for 24 Vdc input voltage,1200 ohms for 40 Vdc input voltageElectrical Connections: IRFF: Two terminal screws molded into highstrength, high temperature thermoplasticElectrical Connections: IRLS: Four terminal compression typeOperating Ambient TemperatureWithout Cooling Jacket: 0 to 60°C (32 to 140°F)Without Air Purge Assembly: 120°C (248°F) rated for water-coolingWith Cooling Jacket: Up to 315°C 599°F)

Storage Ambient Temperature: -30 to 80°C (-22 to 176°F)Relative Humidity: 90% Non-condensingVibration: IRFF: 3 g’s any Axis ContinuousShock: IRFF: 50 g’sHousing Material: Stainless SteelDimensions: IRFF: 2.0 x 7.8 inches (50 x 200 mm)Dimensions: IRLS: 2.0 x 8.0 inches (50 x 203 mm)Weight: 1.9 lbs. (0.9 kg)Mounting: Support block with four 0.2 inch (5 mm) diameter holes andU-clamp. For more secure mounting, protective jacket is recommended

Optional FeaturesNIST Traceable: Minimum of five points on instrumentCalibration Certificate: Temperature scale. Additional points asrequired at extra cost per point.Peak/Valley Picker: See accessories (electrical)

* Accuracy is stated for target emissivity of 1.0 at specified focussed distanceand target having sufficient diameter to eliminate background influence.

* Accuracy is stated for input voltage of 24 Vdc and load resistance of 250 ohms.

* For a narrow band Spectral Response centered at 3.86 microns the accuracy islimited to 0.75% FS

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