optris CX User manual

Operator’s Manual
optris®CX
Infrared thermometer

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

-Table of contents 3-
Table of contents
Table of contents..............................................................................................................................................3
1General notes............................................................................................................................................6
1.1 Intended use.......................................................................................................................................6
1.2 Warranty .............................................................................................................................................7
1.3 Scope of delivery ................................................................................................................................7
1.4 Maintenance .......................................................................................................................................8
1.5 Product overview ................................................................................................................................8
1.6 Factory Default Settings .....................................................................................................................9
2Technical Data ........................................................................................................................................10
2.1 Default settings.................................................................................................................................10
2.2 General specifications ......................................................................................................................11
2.3 Electrical specifications.....................................................................................................................12

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2.4 Measurement specifications.............................................................................................................13
2.5 Optical charts....................................................................................................................................14
2.6 CF-optics and protective window......................................................................................................16
3Installation...............................................................................................................................................17
3.1 Mechanical Installation .....................................................................................................................17
3.2 Electrical Installation.........................................................................................................................20
4Software CompactConnect....................................................................................................................24
4.1 Installation.........................................................................................................................................24
5Digital command set...............................................................................................................................26
6Basics of Infrared Thermometry ...........................................................................................................27
7Emissivity................................................................................................................................................28
7.1 Definition...........................................................................................................................................28
7.2 Determination of unknown emissivity ...............................................................................................29
7.3 Characteristic emissivity...................................................................................................................30

-Table of contents 5-
Appendix A –Table of emissivity for metals...............................................................................................31
Appendix B - Table of emissivity for non-metals........................................................................................32
Appendix C –Direct connection to a RS232 interface................................................................................33
Appendix D - Smart Averaging......................................................................................................................34
Appendix E –Declaration of Conformity......................................................................................................35

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1 General notes
1.1 Intended use
Thank you for choosing the optris® CX infrared thermometer.
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 [►6 Basics of Infrared
Thermometry].
The CX sensing head is a sensitive optical system. Please use only the thread for mechanical
installation.
Avoid abrupt changes of the ambient temperature.
Avoid mechanical violence on the head –this may destroy the system (expiry of warranty).
If you have any problems or questions, 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.
► All accessories can be ordered according to the referred part numbers in brackets [ ].

-General notes 7-
1.2 Warranty
Each single product passes through a quality process. Nevertheless, if failures occur 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
CX incl. connection cable, mounting nut and operators manual

-8-
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 lens cleaner (e.g. Purosol or B+W Lens Cleaner).
Never use cleaning compounds which contain solvents (neither for the lens nor for the housing).
1.5 Product overview
Model
Model code
Measurement
range
Spectral
response
Optic
Specialty
CX
CX
-30 to 900 °C
8-14 µm
22:1
CX hs
-20 to 150 °C
15:1
0,025 K resolution

-General notes 9-
1.6 Factory Default Settings
At time of delivery the unit has the following pre-settings:
CX
CX hs
Temperature range:
-18...500 °C
-20…150 °C
Output:
4…20 mA
Emissivity:
0,950
Transmissivity
1,000
Smart Averaging:
active
Ambient temperature source:
Head temperature

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2 Technical Data
2.1 Default settings
Smart Averaging means a dynamic average adaptation at high signal edges. [Activation via software only].
[►Appendix D - Smart Averaging]
If the unit is supplied together with the USB kit the output is already pre-set to digital
communication (bidirectional).

-Technical Data 11-
2.2 General specifications
CX
CX hs
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 60068-2-6 (sinus shaped), IEC 60068-2-64 (Broad band noise)
Shock
IEC 60068-2-27 (25 G and 50 G)

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2.3 Electrical specifications
CX
CX hs
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...30 VDC
1) Inverted RS232 signal, TTL, 9.6 kBaud
Figure 1: Dimensions CX
white
Current loop (+)
yellow
TxD (5 V)
green
RxD (5 V)/ Open-collector output
brown
Current loop (-)/ Ground ()
black
Shield

-Technical Data 13-
2.4 Measurement specifications
CX
CX hs
Temperature range IR:
-30...900 °C (scalable via software)
-20…150 °C scalable via software)
Spectral range:
8...14 µm
Optical resolution:
22:1
15:1
CF-lens (optional):
0,6 mm@ 10 mm
0,8 mm@ 10 mm
Accuracy: 1)
±1,4 °C or ±1,0 %
±1,0 °C or ±1,0 %
Repeatability: 1)
±0,5 °C or ±0,7 %
±0,3 °C or ±0,3 %
Temperature resolution:
0,1 K
0,025 K (for temperatures > 20 °C)
Response time (90 % signal):
150 ms
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 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 should fill out the field of view of the optics
completely. Consequently, the spot should at all times have at least the same size like the
object or should be smaller than that.
As an alternative to the optical diagrams, the spot size calculator can also be used on the optris website
http://www.optris.com/spot-size-calculator.
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/ CF-lens holder/ air purge.

-Technical Data 15-
Figure 2: Optical chart optris CX (22:1)
Figure 3: Optical chart optris CX with CF-lens (0.6 mm@ 10 mm)

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2.6 CF-optics and protective window
If the CF-lens is used, the transmission has to be set to 0.78. To change this value the
optional USB-Kit (including software) is necessary.
The assigned transmission (average value) is a characteristic value which may has a certain
scattering. If required the transmission has to be determined.
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.
Figure 4: CF-lens [Order No.: ACCXCF]/
protective window [Order No.: ACCXPW]

-Installation 17-
3 Installation
3.1 Mechanical Installation
The 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: CX –Dimensions

-18 -
Mounting bracket
Figure 6: Mounting angle [Order No.: ACCXFB] and adjustment angle [Order No.: ACCXAB] for CX

-Installation 19-
Air purge collar
Use oil-free, technically clean air only.
The needed amount of air (approx. 2...10 l/ min.) depends on the application and the
installation conditions on-site.
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.
Figure 7: Air purge collar [Order No.: ACCXAP]; Hose
connection: 6x8 mm

-20 -
3.2 Electrical Installation
Analog device (mA-output)
Use shielded cables only. The sensor shield has to be grounded.
Use a separate, stabilized power supply unit with an output voltage in the range of
5–28 VDC which can supply 100 mA. The residual ripple should be max 200 mV.
The maximum loop impedance is 1000 Ω.
Figure 8: Wiring diagram of the analog device