Infrared Temperature Sensors - Honeywell

Industrial Measurement and Control
Honeywell’s
Infrared
Temperature
Sensors
Key Features
• 4 - 20mA Linear Output
• 2-wire Connection
• Through-the-lens
Sighting (IRLS)
• Variable Focus
Distance (IRLS)
• 0.5% Accuracy
• Rugged Stainless
Steel Design
Innovative Design
Honeywell’s Infrared Sensors are 2-wire temperature transducers/transmitters for non-contact
temperature measurement. These products represent the latest in innovative technology, integrating
exclusive, advanced electronic design with optical and mechanical precision that are the essence of
Honeywell’s infrared products. The design from concept to finish is based on simplicity of installation
and maintenance. The sensors, with their matchless array of options and accessories, demonstrate
Honeywell’s continuing leadership in temperature measuring technology.
Universal Application
Completely 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, each
sensor is completely compatible with any existing instrumentation for recording or process control. A
rugged, stainless steel housing, miniature size and light weight make the sensors suitable for many
applications which up to now were the exclusive domain of contact type temperature transmitters,
such as thermocouples, resistance thermometers, etc. To insure minimum maintenance and utmost
reliability, the sensors have absolutely no moving parts. When contained within its companion
cooling jacket and air purge assembly, each sensor can withstand the most punishing conditions
found in industry. The sensors have universal application in virtually any type of industry. Typical
application 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 Sensor
The IRFF is designed to handle most demanding industrial applications. When powered by an 18 to
40 Vdc supply, it provides a 4-20mA linear output for interface with indication and recording
instrumentation. Its two-wire design simplifies installation, operation and maintenance. Screw
terminals allow easy yet secure connection. The IRFF is a fixed optical system. That is, the distance
between the sensor and the target area determines target size. It is recommended for applications
where target size is known and operating distance is relatively constant.
IRLS Sensor
The IRLS contains all the features of the IRFF with the added
benefit of upright through-lens sighting. The IRLS incorporates a
high quality, high precision variable focus optical system that
allows sharp focussing on the desired focussing knob on the rear
panel of the instrument. The IRLS allows for precision pinpointing
of small target areas. The user simply adjusts the instrument until
the image is clear and the desired target is located within the
reticle. The IRLS is available in three distinct versions. The first will
make accurate measurements at distances of 14 inches to infinity,
the second has a working range of 6 to 14 inches and the third is
designed to measure a target at 2 inch distance.

Field Interchangeability
Superior design not only insures accuracy and long term reliability,
it also insures interchangeability between sensors of the same
model with ±0.50% accuracy. For especially demanding
applications, the sensors have a digital emissivity control, which
can be set with a resolution of 0.01. This insures that, should one
of the sensors need to be replaced, the replacement unit can be
preset in every aspect before installation.
Application Assistance
Many years of experience in solving unusual and difficult
temperature measurement and control problems qualify our sales
and application engineering staffs to offer solutions to the most
challenging applications encountered in industry.
Quality Assurance
Reliability is never taken for granted at Honeywell. After final
calibration, every sensor is tested and burned-in for a week and
rigorously subjected to a period of thermal cycling and vibration
to verify calibration data.
Warranty
All sensors are backed by a two-year warranty and Honeywell’s
Technical Assistance Center.
Honeywell Industrial Measurement and Control offers a complete
portfolio of products and solutions for process and machine
control applications, including controllers, recorders, transmitters,
actuators, smart sensors, and analytical instruments. To
learn more about these offerings and how they can help your
organization achieve breakthrough results, contact your local
Honeywell representative, or contact us at the following phone
numbers:
U.S.: 1-800-784-3011
France: 33 1 60 19 80 75
Canada: 1-800-461-0013
Italy: 39 02 9214 6503
UK: 44 191 548 6305
Spain: 34 91313.61.00
Germany: 49 69 8064 336
Latin America: 1-305-805-8188
Asia/Pacific: 65 355 2828
For other locations, visit our website: www.honeywell.com/imc
Industrial Measurement and Control
www.honeywell.com/imc
Copyright © 2003 Honeywell International, Inc.
Specifications
Accuracy*: ± 0.5% of full scale or 1.0°C (1.80°F) whichever is greater
Resolution: ± 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 step
Optical System: IRLS: Non-paralex refractive optics focusable
from rear panel
Field of View: IRLS: Visual sighting 40. Infrared measurement definition
MTS (see FOV diagram) for IRFF & optical resolution for IRLS
Focussing Distance: IRLS: The different versions cover 2 inches
to infinity (adjustable for sharp focussing on target)
Eyepiece: IRLS: Dioper type
Input voltage: 24 Vdc nominal (range: 18-40 Vdc)
Output Current Span: 4-20 mA linear standard
Min. Output Current: 3.8 mA
Max. Output Current: 32 mA
Response Time: 50mS for Spectral Response of 0.78-1.6 microns
100 mS for all others. Response time defined as time required for
output to reach 95% of its final value.
Load Resistance Max: 400 ohms for 24 Vdc input voltage,
1200 ohms for 40 Vdc input voltage
Electrical Connections: IRFF: Two terminal screws molded into high
strength, high temperature thermoplastic
Electrical Connections: IRLS: Four terminal compression type
Operating Ambient Temperature
Without Cooling Jacket: 00 to 600°C (320 to 1400°F)
Without Air Purge Assembly: 1200°C (2500°F) rated for water-cooling
With Cooling Jacket: Up to 3150°C (6000°F)
Storage Ambient Temperature: -300 to 800°C (-200 to 1600°F)
Relative Humidity: 90% Non-condensing
Vibration: IRFF: 3 g’s any Axis Continuous
Shock: IRFF: 50 g’s
Housing Material: Stainless Steel
Dimensions: 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 and
U-clamp. For more secure mounting, protective jacket is recommended
Optional Features
NIST Traceable: Minimum of five points on instrument
Calibration Certificate: Temperature scale. Additional points as
required at extra cost per point.
Peak/Valley Picker: See accessories (electrical)
* Accuracy is stated for target emissivity of 1.0 at specified focussed distance
and 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 is
limited to 0.75% FS
Industrial Measurement and Control
Honeywell
1100 Virginia Drive
Fort Washington, PA 19034
70-82-57-13 10/02
www.honeywell.com/imc