optris CX User manual

optris®CX
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Infrared sensor
User’s manual

Optris GmbH
Ferdinand-Buisson-Str. 14
D – 13127 Berlin
Germany
Tel.: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.optris.de

Table of content
1General notes......................................................................................................................................3
1.1 Intended use.................................................................................................................................3
1.2 Warranty.......................................................................................................................................4
1.3 Scope of delivery..........................................................................................................................4
1.4 Maintenance.................................................................................................................................5
2Technical Data.....................................................................................................................................7
2.1 Factory settings............................................................................................................................7
2.2 General specifications..................................................................................................................8
2.3 Electrical specifications ................................................................................................................9
2.4 Measurement specifications...................................................................................................... 10
2.5 Optical charts ............................................................................................................................ 11
2.6 CF-optics and protective window .............................................................................................. 12
3Installation ........................................................................................................................................ 15
3.1 Mechanical Installation.............................................................................................................. 15
3.2 Electrical Installation.................................................................................................................. 19
4Software CompactConnect............................................................................................................. 25
5Digital command set........................................................................................................................ 29
6Basics of infrared thermometry...................................................................................................... 31
7Emissivity ......................................................................................................................................... 33
7.1 Definition.................................................................................................................................... 33
7.2 Determination of unknown emissivities..................................................................................... 34
7.3 Characteristic emissivities......................................................................................................... 35
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Appendix A – Table of emissivities for metals...................................................................................... 37
Appendix B – Table of emissivities for non-metals .............................................................................. 38
Appendix C – Direct Connection to an RS232 Interface....................................................................... 39
Appendix D – Smart Averaging............................................................................................................... 41
Appendix E – CE-Conformity .................................................................................................................. 42
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1 General notes
1.1 Intended use
The sensors of the optris CX series are non-contact infrared temperature sensors. They calculate the surface
temperature based on the emitted infrared energy of objects [► Basics of Infrared Thermometry].
Avoid abrupt changes of the ambient temperature. In case of problems or questions which may
arise when you use the infrared camera contact our service department.
The CX sensors are sensitive optical systems. Use the thread for mechanical installation only.
Avoid mechanical violence on the head – this may destroy the system (expiry of warranty).
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1.2 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.
1.3 Scope of delivery
•optris CX incl. connection cable, mounting nut and user’s manual
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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1.4 Maintenance
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.
Never use cleaning compounds which contain solvents (neither for the lens nor for the
housing).
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2 Technical Data
2.1 Factory settings
The unit has the following pre-setting at time of delivery:
Temperature range:
-18...500 °C/ according 4...20 mA
Emissivity:
0.950
Transmission:
1.000
Smart averaging:
active
Ambient temperature source:
Head temperature
•Smart averaging means a dynamic average adaptation at high signal edges [activation via
software only].
•If the unit is supplied together with the USB-kit (optional) the output will be set to digital
communication (bidirectional).
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2.2 General specifications
Environmental rating:
IP65 (NEMA-4)
Ambient temperature:
-20...75 °C
Storage temperature:
-40...85 °C
Relative humidity :
10...95 %, non-condensing
Material:
aluminum, black anodized
Dimensions:
Diameter: 42 mm/ Length: 130 mm
Weight:
350 g
Cable length:
5 m
Cable diameter:
4.3 mm
Vibration:
IEC 68-2-6: 3G, 11 – 200 Hz, any axis
Shock:
IEC 68-2-27: 50G, 11 ms, any axis
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2.3 Electrical specifications
Output/ analog:
4-20 mA/ scalable
Output/ serial digital: 1)
uni- (burst mode) or bi-directional
Alarm output:
programmable open collector output/ 0...30 VDC;
500 mA
Output impedances:
max 1000 Ω loop impedance
Power supply:
5...28 VDC
1) inverted RS232-Signal, TTL, 9,6 kBaud
Figure 1: Wiring optris CX
white
Current loop (+)
yellow
TxD (5 V)
green
RxD (5 V)/ Open-collector output
brown
Current loop (-)/ Ground (⊥)
black
Shield
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2.4 Measurement specifications
Temperature range IR:
-30...900 °C (scalable via software)
Spectral range:
8...14 µm
Optical resolution:
22:1
CF-lens (optional):
0.6 mm@ 10 mm
Accuracy: 1)
±1.5 °C or ±1,5 %
Repeatability: 1)
±0.75 °C or ±0.75 %
Temperature resolution:
0.2 °C
Response time:
150 ms (95 % signal)
Warm-up time:
10 min
Emissivity/ Gain:
0.100...1.100 (adjustable via software)
Transmissivity:
0.100...1.000 (adjustable via software)
Interface (optional):
USB programming interface
Signal processing:
Average, peak hold, valley hold (adjustable via
software)
Software (optional):
CompactConnect
1) at ambient temperature of 23±5 °C; whichever is
greater
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2.5 Optical charts
The following optical charts show the diameter of the measuring spot in dependence on the distance
between measuring object and sensing head. The spot size refers to 90 % of the radiation energy. The
distance is always measured from the front edge of the sensor housing.
Figure 2: Optical chart optris CX (22:1)
•The size of the measuring object and the optical resolution of the infrared thermometer determine
the maximum distance between sensing head and measuring object.
•In order to prevent measuring errors the object must fill out the field of view of the optics completely.
Consequently, at all times the spot must have at least the same size like the object or has to be smaller than
that.
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Figure 3: Optical chart optris CX with CF-lens (0.6 mm@ 10 mm)
2.6 CF-optics and protective window
The optional CF-lens allows the measurement of small objects. For protection of the sensing head optics a
protective window is available. The mechanical dimensions are equal to the CF lens.
•If the CF-lens is used, the transmission has to be set to 0.78. To change this value the optional
USB-Kit (including CompactConnect software) is necessary.
•If the protective window is used the transmission has to be set to 0.83. To change this value
the optional USB-Kit (including CompactConnect software) is necessary.
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Figure 4: CF-lens [Order No.: ACCXCF]/ protective window [Order No.: ACCXPW]
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3 Installation
3.1 Mechanical Installation
The optris CX is equipped with a 20 UNF-2B thread and can be installed either directly via the sensor thread
or with the help of the hex nut (standard) to the mounting bracket available.
Figure 5: optris CX - Dimensions
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Mounting bracket
Figure 6: Mounting angle [Order No.: ACCXFB] and adjustment angle [Order No.: ACCXAB] for optris CX
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Air purge collar
The lens must be kept clean at all times from dust, smoke, fumes and other contaminants in order to avoid
reading errors. These effects can be reduced by using an air purge collar.
The needed amount of air (approx. 2...10 l/ min.) depends on the application and the installation
conditions on-site.
Use oil-free, technically clean air only.
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Figure 7: Air purge collar [Order No.: ACCXAP]; Hose connection: 6x8 mm
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