optris CT XL 3M User manual

Operator’s Manual
optris®CT XL
Infrared thermometer
3M

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 Information.................................................................................................................................7
1.1 Description ....................................................................................................................................... 7
1.2 Warranty........................................................................................................................................... 8
1.3 Scope of Supply............................................................................................................................... 8
1.4 Maintenance..................................................................................................................................... 9
1.5 Model Overview................................................................................................................................ 9
1.6 Factory Default Settings................................................................................................................. 10
2Technical Data........................................................................................................................................12
2.1 General Specifications ................................................................................................................... 12
2.2 Electrical Specifications.................................................................................................................. 13
2.3 Measurement Specifications [3M models] ..................................................................................... 14
2.4 Optical Charts................................................................................................................................. 15

-4-
3Mechanical Installation..........................................................................................................................22
4Accessories............................................................................................................................................24
4.1 Air Purge Collar.............................................................................................................................. 24
4.2 Mounting Brackets.......................................................................................................................... 25
4.3 Rail Mount Adapter for Electronic box............................................................................................ 26
5Electrical Installation.............................................................................................................................27
5.1 Cable Connections......................................................................................................................... 27
5.2 Ground Connection [3M models] ................................................................................................... 30
6Outputs and Inputs................................................................................................................................31
6.1 Analog Outputs............................................................................................................................... 31
6.2 Digital Interfaces............................................................................................................................. 32
6.3 Relay Outputs................................................................................................................................. 32
6.4 Functional Inputs............................................................................................................................ 33
6.5 Alarms ............................................................................................................................................ 34

-Table of Contents 5-
7Operating ................................................................................................................................................35
7.1 Sensor Setup.................................................................................................................................. 35
7.2 Error messages.............................................................................................................................. 41
8Software CompactConnect...................................................................................................................42
8.1 Installation ...................................................................................................................................... 42
8.2 Communication Settings ................................................................................................................ 43
9Basics of Infrared Thermometry...........................................................................................................45
10 Emissivity ...............................................................................................................................................46
10.1 Definition......................................................................................................................................... 46
10.2 Determination of unknown Emissivity ............................................................................................ 46
10.3 Characteristic Emissivity ................................................................................................................ 47
Appendix A –Emissivity Table Metals.........................................................................................................48
Appendix B –Emissivity Table Non Metals.................................................................................................50
Appendix C –Smart Averaging.....................................................................................................................51

-6-
Appendix D –Declaration of Conformity .....................................................................................................52

-General Information 7-
1 General Information
1.1 Description
Thank you for choosing the optris® CT XL infrared thermometer.
The sensors of the optris CT XL series are noncontact infrared temperature sensors.
They calculate the surface temperature based on the emitted infrared energy of objects [►9 Basics of
Infrared Thermometry]. The sensor housing of the CT XL head is made of stainless steel (IP65/ NEMA-4
rating) –the sensor electronics is placed in a separate box made of die casting zinc.
The CT XL 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 [ ].

-8-
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 Supply
CT XL sensing head with connection cable and electronic box
Mounting nut
Operator‘s Manual

-General Information 9-
1.4 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 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 Model Overview
The sensors of the CT XL series are available in the following basic versions:
Model
Model codes
Measurement
range
Spectral response
Typical applications
CT XL 3M
3MH
100 to 600 °C
2,3 µm
metallic surfaces
3MH1
150 to 1000 °C
3MH2
200 to 1500 °C
3MH3
250 to 1800 °C

-10 -
1.6 Factory Default Settings
The unit has the following presetting at time of delivery:
Signal output object temperature
0-5 V
Emissivity
1,000
Transmissivity
1,000
Averaging (AVG)
inactive
Smart Averaging
active
Peak hold
inactive
Valley hold
inactive
3MH
3MH1
3MH2
3MH3
Lower limit temperature range [°C]
100
150
200
250
Upper limit temperature range [°C]
600
1000
1500
1800
Lower alarm limit [°C]
(normally closed)
250
350
550
600
Upper alarm limit [°C]
(normally open)
500
600
1000
1400
Lower limit signal output
0 V
Upper limit signal output
5 V
Temperature unit
°C
Ambient temperature compensation
internal head temperature probe

-General Information 11-
Baud rate [kBaud]
115
Smart Averaging means a dynamic average adaptation at high signal edges.
[Activation via software only].
►Appendix C –Smart Averaging

-12 -
2 Technical Data
2.1 General Specifications
Sensing head
Electronic box
Environmental rating
IP65 (NEMA-4)
Ambient Temperature
-20...85 °C
-20...85 °C 1)
Storage temperature
-40...85 °C
Relative humidity
10...95 %, non condensing
Material
stainless steel
die casting zinc
Dimensions
112 mm x 32 mm, M30x1
89 mm x 70 mm x 30 mm
Weight
120 g
420 g
Cable length
3 m
Cable diameter
2,8 mm
Ambient temperature cable
max. 180 °C
Vibration
IEC 68-2-6: 3G, 11 –200 Hz, any axis
Shock
IEC 68-2-27: 50G, 11 ms, any axis
Software (optional)
CompactConnect
1) The functionality of the LCD display can be limited at ambient temperatures below 0 °C.

-Technical Data 13-
2.2 Electrical Specifications
Power Supply
8–36 VDC
Current draw
max. 100 mA
Outputs/ analog
Channel 1
selectable: 0/ 4–20 mA, 0–5/ 10 V, thermocouple (J or K) or alarm output (Signal source:
object temperature)
Alarm output
Open collector output at Pin AL2 [24 V/ 50 mA]
Output impedances
mA
mV
Thermocouple
max. loop resistance 500 Ω (at 8-36 VDC)
min. 100 kΩ load impedance
20 Ω
Digital interfaces
USB, RS232, RS485, CAN, Profibus DP, Ethernet (optional plug-in modules)
Relay outputs
2 x 60 VDC/ 42 VACRMS, 0,4 A; optically isolated (optional plug-in module)
Functional inputs
F1-F3; software programmable for the following functions:
external emissivity adjustment
ambient temperature compensation
trigger (reset of hold functions)

-14 -
2.3 Measurement Specifications [3M models]
3MH
3MH1
3MH2
3MH3)
Temperature range (scalable)
100…600 °C 1)
150…1000 °C
200…1500 °C
250…1800 °C
Spectral range
2,3 µm
Optical resolution
100:1
300:1
System accuracy 2), 3), 4)
±(0,3 % of reading +2 °C)
Repeatability 2), 4)
±(0,1 % of reading +1 °C)
Temperature resolution (NETD)
0,1 K 4)
0,1 K 5)
Response time (90 % signal) 6)
1 ms
Emissivity/ Gain
0,100...1,100 (adjustable via programming keys or software)
Transmissivity
0,100...1,100 (adjustable via programming keys or software)
Signal processing
Average, Peak hold, Valley hold, (adjustable via programming keys or software)
1) TObject > THead+25 °C
2) at ambient temperature 235 °C
3) Accuracy for thermocouple output: ±2,5 °C or ±1 %
4) = 1/ Response time 1 s
5) at object temperatures > 300 °C
6) with dynamic adaptation at low signal levels

-Technical Data 15-
2.4 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 sensing head.
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 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.
D = Distance from front of the sensing head to the object
S = Spot size
The D:S ratio is valid for the focus point.

-16 -
3MH Optics: SF
D:S (focus distance) = 100:1
11mm@ 1100mm
D:S (far field) = 38:1
3MH Optics: CF1
D:S (focus distance) = 100:1
0,85mm@ 85mm
D:S (far field) = 3:1

-Technical Data 17-
3MH Optics: CF2
D:S (focus distance) = 100:1
1,5mm@ 150mm
D:S (far field) = 7:1
3MH Optics: CF3
D:S (focus distance) = 100:1
2mm@ 200mm
D:S (far field) = 9:1

-18 -
3MH Optics: CF4
D:S (focus distance) = 100:1
4,5mm@ 450mm
D:S (far field) = 19:1
3MH Optics: FF
D:S (focus distance) = 100:1
36mm@ 3600mm

-Technical Data 19-
3MH1 - 3MH3 Optics: FF
D:S (focus distance) = 300:1
12mm@ 3600mm
D:S (far field) = 115:1
3MH1 - 3MH3 Optics: SF
D:S (focus distance) = 300:1
3,7mm@ 1100mm
D:S (far field) = 48:1

-20 -
3MH1 - 3MH3 Optics: CF2
D:S (focus distance) = 300:1
0,5mm@ 150mm
D:S (far field) = 7,5:1
3MH1 - 3MH3 Optics: CF3
D:S (focus distance) = 300:1
0,7mm@ 200mm
D:S (far field) = 10:1