optris CTratio Manuel utilisateur
optris®CTratio
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Fiber Optics Ratio Thermometer
Operators manual
optris CTratio –E2013-04-A
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Optris GmbH
Ferdinand-Buisson-Str. 14
D –13127 Berlin
GERMANY
Tel.: +49-30-500 197-0
Fax: +49-30-500 197-10
Internet: www.optris.com
CE-Conformity
The product complies with the following standards:
EMC: EN 61326-1:2006 (Basic requirements)
EN 61326-2-3:2006
Safety: EN 61010-1:2001
Laser Safety: EN 60825-1:2007
The product accomplishes the requirements of the EMC Directive 2004/108/EG
and of the Low Voltage Directive 2006/95/EG.
References to other chapters are marked as: ►.
Warranty
Each single product passes through a quality process. Nevertheless, if failures occur please contact the customer
service at once. The warranty period covers 24 months starting on the delivery date. After the warranty is expired the
manufacturer guarantees additional 6 months warranty for all repaired or substituted product components. Warranty
does not apply to damages, which result from misuse or neglect. The warranty also expires if you open the product. The
manufacturer is not liable for consequential damage or in case of a non-intended use of the product. If a failure occurs
during the warranty period the product will be replaced, calibrated or repaired without further charges. The freight costs
will be paid by the sender. The manufacturer reserves the right to exchange components of the product instead of
repairing it. If the failure results from misuse or neglect the user has to pay for the repair. In that case you may ask for a
cost estimate beforehand.
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Content
Page Page
Description 3Operating 26
Scope of Supply 4 Sensor Setup 26
Maintenance 4 Software CompactConnect 32
Safety Note 5 Installation 32
Cautions 5 Communication Settings 33
Factory Default Settings 6 Basics of Infrared Thermometry 34
Technical Data 7The Ratio Principle 35
General Specifications 7 Emissivity 38
Electrical Specifications 8 Definition 38
Measurement Specifications 9 Determination of unknown Emissivities 38
Optics 10 Characteristic Emissivities 39
Mechanical Installation 13 Characteristic Slope Values 40
Accessories 15 Determination of unknown Slope values 40
Laser Sighting 17 Attenuation 40
Electrical Installation 18 Appendix A –Emissivity Table Metals 42
Cable Connections 18 Appendix B –Emissivity Table Non Metals 44
Ground Connection 20 Appendix C –Smart Averaging 45
Outputs and Inputs 21
Analog Output 21
Digital I/O pins 22
Programming Interface 23
Relay Outputs 24
Alarms 25
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Description
The sensors of the optris CTratio series are noncontact infrared temperature sensors.
They calculate the surface temperature based on the emitted infrared energy of objects. The CTratio can
work in the 1-color-mode as well as in the ratio- or 2-color-mode [► Basics of Infrared Thermometry]. The
optical sensing head of the CTratio is made of stainless steel (IP65/ NEMA-4 rating) and is connected via a
rugged fiber optics, which is protected by a stainless steel armour, with the sensor electronics (die casting
zinc box).
1-color-mode [1C]
The 1-color-mode is best for measuring the temperature of objects in areas where no sighting obstructions
(solid, gases or dust) exist. The measurement object must fill completely the measurement spot, if the 1-
color-mode is used.
2-color-mode [2C]
In this mode the object temperature will be determined from the ratio of the signal of two separate and
overlapping infrared bands. The 2-color-mode is best for measuring the temperature of objects which are
partially obscured by other objects, openings or viewing windows that reduce energy and by dirt, smoke or
steam in the atmosphere. Another benefit of the 2-color-mode is that the measurement object can be smaller
than the measurement spot, provided the background is cooler than the target [► The Ratio Principle].
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PLEASE NOTE: Never use cleaning
compounds which contain solvents (neither
for the lens nor for the housing).
Scope of Supply
CTratio sensing head with fibre connection cable and electronic box
2 mounting nuts
Mounting bracket, adjustable in one axis
Operators manual
Maintenance
Lens cleaning: Blow off loose particles using clean
compressed air. The lens surface can be cleaned with a
soft, humid tissue moistened with water or a water based
glass cleaner.
The CTratio sensing head is a sensitive optical system. Please use only the thread for mechanical
installation.
Avoid mechanical violence on the head –this may destroy the system (expiry of warranty).
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Safety Note
WARNING!
This sensor contains an internal HIGH POWER LASER which is used for spot size illumination via
the fiber optics cable.
Before you open the electronics, remove the fiber optical cable from the
electronics or disassemble the optical head the sensor must be switched off
and disconnected from the power supply and USB interface!
The laser power at properly usage of the sensor (fiber optical cable incl.
sensing head connected) is < 1mW and fulfils laser class 2 according
IEC 60825-1:2007.
Cautions
Avoid static electricity. The fiber optical cable has a minimum bending radius of 40 mm.
In case of problems or questions which may arise when you use the CTratio, please contact our service
department.
Read the manual carefully before the initial start-up. The producer reserves the right to change the herein
described specifications in case of technical advance of the product.
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Smart Averaging means a
dynamic average adaptation at
high signal edges [activation via
software only].
► Appendix C
Factory Default Settings
The unit has the following presetting at time of delivery:
Signal output object temperature 0-5 V
Emissivity 1,000
Slope 1,000
Averaging (AVG) inactive
Smart Averaging inactive
Peak hold inactive
Valley hold inactive
Output channel 1 T 2C (2C temperature)
Lower limit temperature range [°C] 700
Upper limit temperature range [°C] 1800
Lower limit signal output 0 V
Upper limit signal output 5 V
Max. attenuation 95 %
Temperature unit °C
Baud rate [kBaud] 115
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Technical Data
General Specifications
Sensing head Electronic box
Environmental rating IP65 (NEMA-4) IP65 (NEMA-4)
Ambient Temperature -20...250 °C 0...85 °C (70 °C with Laser ON)
Storage temperature -40...250 °C -40...85 °C
Relative humidity 10...95%, non condensing 10...95%, non condensing
Material stainless steel die casting zinc
Dimensions length: 78,1 mm (SF head) 89 mm x 70 mm x 30 mm
82,6 mm (CF head)
thread: M18x1
Weight 375 g (incl. fiber optics 3 m) 420 g
Fiber optics multimode fiber, stainless steel armour
Fiber optics length 3 m (standard), 6 m, 10 m, 15 m, 22 m
Vibration IEC 68-2-6: 3G, 11 –200Hz, any axis
Shock IEC 68-2-27: 50G, 11ms, any axis
Software CompactConnect (optional; for programming only)
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Electrical Specifications
Power Supply 8–36 VDC
Current draw max. 200 mA
Aiming laser 650 nm, 1mW, On/ Off via programming keys or software
Outputs/ analog selectable: 0/ 4–20 mA, 0–5/ 10 V
Digital I/O pins 2 programmable in-/ outputs, usable as:
Alarm output (open collector output [24 V/ 1 A])
Digital input for triggered signal output and peak hold function
Output impedances
mA max. loop resistance 500 Ω(at 8-36 VDC)
mV min. 100 KΩload impedance
Digital interface USB (optional; for programming only)
Relay outputs 2 x 60 VDC/ 42 VACRMS, 0,4 A; optically isolated (optional plug-in module)
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