optris
®
CTlaser
LT/ LTF/ 05M/ 1M/ 2M/ 3M/ MT/ F2/ F6/ G5/ P7
Infrared thermometer
Operator’s Manual
Optris GmbH
Ferdinand-Buisson-Str. 14
13127 Berlin
Germany
Tel.: +49 30 500 197-0
Fax: +49 30 500 197-10
E-mail: info@optris.global
Internet: www.optris.global
Table of contents 3-
Table of contents
Table of contents .............................................................................................................................................. 3
1 General Notes ........................................................................................................................................... 9
1.1 Intended use ....................................................................................................................................... 9
1.2 Warranty ........................................................................................................................................... 10
1.3 Scope of delivery .............................................................................................................................. 10
1.4 Maintenance ..................................................................................................................................... 11
1.5 Model Overview ................................................................................................................................ 12
2 Technical Data ........................................................................................................................................ 14
2.1 Factory settings ................................................................................................................................ 14
2.2 General specifications ...................................................................................................................... 17
2.3 Electrical specifications ..................................................................................................................... 18
-4 -
2.4 Measurement specifications [LT models] ......................................................................................... 20
2.5 Measurement specifications [05M model] ........................................................................................ 21
2.6 Measurement specifications [1M models] ........................................................................................ 22
2.7 Measurement specifications [2M models] ........................................................................................ 23
2.8 Measurement specifications [3M models] ........................................................................................ 24
2.9 Measurement specifications [3M/ MT/ F2 models] ........................................................................... 25
2.10 Measurement specifications [F2/ F6/ P7 models]............................................................................. 26
2.11 Measurement specifications [G5 models] ......................................................................................... 27
2.12 Optical charts .................................................................................................................................... 28
3 Mechanical Installation .......................................................................................................................... 43
3.1 Accessories....................................................................................................................................... 46
3.1.1 Air purge collar .......................................................................................................................... 46
3.1.2 Mounting bracket ...................................................................................................................... 47
Table of contents 5-
3.1.3 Water cooled housing ............................................................................................................... 48
3.1.4 Rail mount adapter for electronic box ....................................................................................... 49
3.1.5 CoolingJacket und CoolingJacket Advanced ........................................................................... 50
3.1.6 Outdoor protective housing ....................................................................................................... 51
3.1.7 IR app Connector ...................................................................................................................... 52
4 Electrical Installation .............................................................................................................................. 53
4.1 Connection of the cables .................................................................................................................. 53
4.2 Power supply .................................................................................................................................... 58
4.3 Cable assembling ............................................................................................................................. 58
4.4 Ground connection ........................................................................................................................... 60
4.4.1 05M, 1M, 2M, 3M models ......................................................................................................... 60
4.4.2 LT, LTF, MT, F2, F6, G5, P7 models ........................................................................................ 61
4.5 Exchange of the sensing head ......................................................................................................... 62
-6 -
4.6 Exchange of the head cable ............................................................................................................. 63
4.7 Outputs and Inputs ........................................................................................................................... 64
4.7.1 Analog outputs .......................................................................................................................... 64
4.7.2 Digital Interfaces ....................................................................................................................... 66
4.7.3 Relay outputs ............................................................................................................................ 67
4.7.4 Functional inputs ....................................................................................................................... 68
4.7.5 Alarms ....................................................................................................................................... 69
5 Operation ................................................................................................................................................. 72
5.1 Sensor setup ..................................................................................................................................... 72
5.2 Aiming laser ...................................................................................................................................... 79
5.3 Error messages ................................................................................................................................ 81
6 IRmobile app ........................................................................................................................................... 82
7 Software CompactConnect .................................................................................................................... 84
Table of contents 7-
7.1 Installation ......................................................................................................................................... 84
7.2 Communication settings ................................................................................................................... 86
7.2.1 Serial Interface .......................................................................................................................... 86
7.2.2 Protocol ..................................................................................................................................... 86
7.2.3 ASCII-Protocol .......................................................................................................................... 87
7.2.4 Save parameter settings ........................................................................................................... 88
8 Basics of Infrared Thermometry ........................................................................................................... 89
9 Emissivity ................................................................................................................................................ 90
9.1 Definition ........................................................................................................................................... 90
9.2 Determination of unknown emissivity ............................................................................................... 91
9.3 Characteristic emissivity ................................................................................................................... 92
Appendix A – Table of emissivity for metals ............................................................................................... 93
Appendix B – Table of emissivity for non-metals ....................................................................................... 95
-8 -
Appendix C – Smart Averaging ..................................................................................................................... 96
Appendix D – Declaration of Conformity ..................................................................................................... 97
General Notes 9-
The CTlaser 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.
1 General Notes
1.1 Intended use
Thank you for choosing the optris® CTlaser infrared thermometer.
The sensors of the optris CTlaser series are noncontact infrared temperature sensors. They calculate the
surface temperature based on the emitted infrared energy of objects [►8 Basics of Infrared
Thermometry]. An integrated double laser aiming helps to mark the measurement spot on the object
surface. This lies within the two laser points.
-10 -
► All accessories can be ordered according to the referred part numbers in brackets [ ].
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 nonintended 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
CTlaser sensing head with connection cable and electronic box
Mounting nut and mounting bracket (fixed)
Operators manual
General Notes 11-
Never use cleaning compounds which contain solvents (neither for the lens nor for the housing).
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).
-12 -
Model
Model code
Measurement range
Spectral response
Typical applications
CTlaser LT
LT
-50 to 975 °C
8-14 µm
non-metallic surfaces
CTlaser F
LTF
-50 to 975 °C
8-14 µm
fast processes
CTlaser 05M
05M
1000 to 2000 °C
0.525 µm
measurement of liquid metal
CTlaser 1M
1ML
1MH
1MH1
485 to 1050 °C
650 to 1800 °C
800 to 2200 °C
1,0 µm
metals and ceramic surfaces
CTlaser 2M
2ML
2MH
2MH1
250 to 800 °C
385 to 1600 °C
490 to 2000 °C
1.6 µm
metals and ceramic surfaces
CTlaser 3M
3ML
3MH
3MH1
3MH2
3MH3
50 to 400 °C
100 to 600 °C
150 to 1000 °C
200 to 1500 °C
250 to 1800 °C
2.3 µm
metals at low object temperatures (from 50 °C)
CTlaser MT
MT
MTH
200 to 1450 °C
400 to 1650 °C
3.9 µm
measurement through flames
1.5 Model Overview
The sensors of the CTlaser series are available in the following basic versions:
General Notes 13-
CTlaser F2
F2
F2H
200 to 1450 °C
400 to 1650 °C
4.24 µm
measurement of CO2-flame gases
CTlaser F6
F6
F6H
200 to 1450 °C
400 to 1650 °C
4.64 µm
measurement of CO-flame gases
CTlaser G5
G5L
G5H
G5HF
100 to 1200 °C
250 to 1650 °C
200 to 1650 °C
5,0 µm
measurement of glass
CTlaser P7
P7
0 to 710 °C
7.9 µm
plastic foils and surfaces of glass
Table 1: Overview of models
In the following chapters of this manual you will find only the short model codes. On the 1M, 2M, 3M and G5
models the whole measurement range is split into several sub ranges (L, H, H1 etc.).
-14 -
Smart Averaging means a dynamic average adaptation at high signal edges. [Activation via
software only]. [►Appendix C – Smart Averaging]
Signal output object temperature
0 – 5 V
Emissivity
0.970 [LT/ LTF/ MT/ F2/ F6/ G5, P7]
1.000 [05M, 1M/ 2M/ 3M]
Transmissivity
1.000
Average time (AVG)
0.2 s [LT]; 0.1 s [LTF, MT, F2, F6, G5, P7]
inactive [05M, 1M, 2M, 3M]
Smart Averaging
Inactive [LT/ G5], active [05M, 1M, 2M, 3M]
Peak hold
Inactive
Valley hold
Inactive
2 Technical Data
2.1 Factory settings
Technical Data 15-
LT/ LTF
05M
1ML
1MH
1MH1
2ML
2MH
2MH1
3ML
3MH
3MH1
3MH2
Lower limit temperature
range [°C]
0
1000
485
650
800
250
385
490
50
100
150
200
Upper limit temperature
range [°C]
500
2000
1050
1800
2200
800
1600
2000
400
600
1000
1500
Lower alarm limit [°C]
(Normally closed)
30
1200
600
800
1200
350
500
800
100
250
350
550
Upper alarm limit [°C]
(Normally open)
100
1600
900
1400
1600
600
1200
1400
300
500
600
1000
Lower limit signal output
0 V
Upper limit signal output
5 V
Temperature unit
°C
Ambient temperature compensation
(on LT, LTF, MT, F2, F6, G5, P7
output at OUT-AMB as 0-5 V signal)
internal head temperature probe
Baud rate [kBaud]
115
Laser
inactive
-16 -
3MH3
MT
MTH
F2
F2H
F6
F6H
G5L
G5H
G5HF
P7
Lower limit temperature
range [°C]
250
200
400
200
400
200
400
100
250
200 0
Upper limit temperature
range [°C]
1800
1450
1650
1450
1650
1450
1650
1200
400
600
710
Lower alarm limit [°C]
(Normally closed)
750
400
600
400
600
400
600
200
350
350
30 Upper alarm limit [°C]
(Normally open)
1200
1200
1400
1200
1400
1200
1400
500
900
900
100
Lower limit signal output
0 V
Upper limit signal output
5 V
Temperature unit
°C
Ambient temperature compensation
(on LT, LTF, MT, F2, F6, G5, P7
output at OUT-AMB as 0-5 V signal)
internal head temperature probe
Baud rate [kBaud]
115
Laser
inactive
Technical Data 17-
Sensing head
Electronic box
Environmental rating
IP65 (NEMA-4)
Ambient temperature 1)
-20...85 °C
Storage temperature
-40...85 °C (3M: -40…125 °C)
-40...85 °C
Relative humidity
10...95 %, noncondensing
Material
Stainless steel
Die casting zinc
Dimensions
100 mm x 50 mm, M48x1.5
89 mm x 70 mm x 30 mm
Weight
600 g
420 g
Cable length
3 m (standard), 8 m, 15 m
Cable diameter
5 mm
Ambient temperature cable
Max. 105 °C [High temperature cable (optional):
180 °C]
Vibration
IEC 60068-2-6 (sinus shaped), IEC 60068-2-64
(broad band noise)
2.2 General specifications
-18 -
Shock
IEC 60068-2-27 (25G and 50G)
Software (optional)
CompactConnect
Power supply
8–36 VDC
Current draw
Max. 160 mA
Aiming laser
635 nm, 1 mW, On/ Off via programming keys or software
Outputs/ analog
Channel 1
selectable: 0/ 4–20 mA, 0–5/ 10 V, thermocouple (J or K) or alarm output (Signal source:
object temperature)
Channel 2 (LT/ LTF/ MT/ F2/ F6/ G5/ P7 only)
Head temperature [-20...180 °C] as 0–5 V or 0–10 V output or alarm output (Signal source
switchable to object temperature or electronic box temperature if used as alarm output)
Alarm output
Open collector (NPN type) output at Pin AL2 [24 V/ 50 mA]
Output impedances
mA
Max. loop resistance 500 Ω (at 8-36 VDC)
1)
Laser will turn off automatically at ambient temperatures >50 °C. The functionality of the LCD display can be limited at ambient
temperatures below 0 °C.
2.3 Electrical specifications
Technical Data 19-
mV
Min. 100 kΩ load impedance
Thermocouple
20 Ω
Digital interfaces
USB, RS232, RS485, CAN, Profibus DP, Ethernet (optional plug-in modules)
Relay outputs
2 x 60 VDC/ 42 VAC
RMS
, 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)
-20 -
LT
LTF
Temperature range (scalable)
-50...975 °C
Spectral range
8...14 µm
Optical resolution
75:1
50:1
System accuracy
1), 2)
(at ambient temp. 23 ±5 °C)
±1 °C or ±1 %
±1,5 °C or ±1,5 %
Repeatability
1)
(at ambient temp. 23 ±5 °C)
±0.5 °C or ±0.5 %
±1 °C or ±1 %
Temperature resolution (NETD)
0.1 K
0.5 K
Response time (90 % signal)
120 ms
9 ms
Warm-up time
10 min
Emissivity/ Gain, Transmissivity
0.100...1.100 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.4 Measurement specifications [LT models]
1)
Accuracy for thermocouple output: ±2.5 °C or ±1 %, whichever is greater
2)
at object temperatures >0°C, Ɛ =1
Technical Data 21-
05M
Temperature range (scalable)
1000…2000 °C
Spectral range
0.525 µm
Optical resolution
150:1
System accuracy
1), 3)
(at ambient temp. 23 ±5°C)
± 1 % T
Meas
(≤ 1100 °C)
± (0.3 % T
Meas
+ 2 °C) (>1100 °C)
Repeatability (at ambient temp. 23 ±5 °C)
± 0.5 % T
Meas
(≤ 1100 °C)
± (0.1 % T
Meas
+ 1 °C) (>1100 °C)
Temperature resolution (NETD)
0.2 K
Response time 2) (90 % signal)
1 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.5 Measurement specifications [05M model]
1)
ε = 1, exposure time 1 s, 2) with dynamic adaptation at low signal levels, 3) Accuracy for thermocouple output: ±2.5 °C or ±1 %,
whichever is greater
-22 -
1ML
1MH
1MH1
Temperature range (scalable)
485...1050 °C
650...1800 °C
800...2200 °C
Spectral range
1,0 µm
Optical resolution
150:1
300:1
System accuracy
1), 3)
(at ambient temperature
235 °C)
±(0.3 % T
Meas
+2 °C)
Repeatability (at ambient temperature 235 °C)
±(0.1 % T
Meas
+1 °C)
Temperature resolution (NETD)
0.1 K
Response time 2) (90 % signal)
1 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.6 Measurement specifications [1M models]
1)
ε = 1, Exposure time 1 s, 2) with dynamic adaptation at low signal levels, 3) Accuracy for thermocouple output: ±2.5 °C or ±1 %,
whichever is greater
Technical Data 23-
2ML
2MH
2MH1
Temperature range (scalable)
250...800 °C
385...1600 °C
490...2000 °C
Spectral range
1.6 µm
Optical resolution
150:1
300:1
System accuracy
1)3)
(at ambient temperature
235 °C)
±(0.3 % T
Meas
+2 °C)
Repeatability (at ambient temperature
235 °C)
±(0.1 % T
Meas
+1 °C)
Temperature resolution (NETD)
0.1 K
Response time 2) (90 % signal)
1 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.7 Measurement specifications [2M models]
1)
= 1, Exposure time 1 s, 2) with dynamic adaptation at low signal levels, 3) Accuracy for thermocouple output: ±2.5 °C or ±1 %,
whichever is greater
-24 -
3ML 1)
3MH 1)
3MH1
2)
3MH2
2)
Temperature range (scalable)
50...400 °C
100...600 °C
150...1000 °C
200...1500 °C
Spectral range
2.3 µm
Optical resolution
60:1
100:1
300:1
System accuracy
3)5)
(at ambient
temperature 235 °C)
±(0.3 % T
Meas
+2 °C)
Repeatability (at ambient temperature
235 °C)
±(0.1 % T
Meas
+1 °C)
Temperature resolution (NETD)
0.1 K
Response time 4) (90 % signal)
1 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.8 Measurement specifications [3M models]
1)
T
> T
Object
+25 °C, 2) Specification valid at T
Head
adaptation at low signal levels, 5) Accuracy for thermocouple output: ±2.5 °C or ±1 %, whichever is greater
≥ start of measurement range + 50°C, 3) = 1/ Response time 1s, 4) with dynamic
Object
Technical Data 25-
3MH3 4)
MT
MTH
F2
Temperature range (scalable)
250...1800 °C
200...1450 °C
400...1650 °C
200...1450 °C
Spectral range
2.3 µm
3.9 µm
4.24 µm
Optical resolution
300:1
45:1
System accuracy
1), 6)
(at ambient
temperature 235 °C)
±(0.3 % T
Meas
+2 °C)
±1 %
2)
Repeatability(at ambient temperature
235 °C)
±(0.1 % T
Meas
+1 °C)
±0.5 % or 0.5 °C 2)
Temperature resolution (NETD)
0.1 K
Response time (90 % signal)
1 ms 3)
10 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.9 Measurement specifications [3M/ MT/ F2 models]
1)
= 1/ Response time 1s, 2) at object temperatures >300 °C, 3) with dynamic adaptation at low signal levels, 4) TObject > THead+25 °C,
5)
Specification valid at T
≥ start of measurement range + 50°C,
Object
6)
Accuracy for thermocouple output: ±2.5 °C or ±1 %
-26 -
F2H
F6
F6H
P7
Temperature range (scalable)
400...1650 °C
200...1450 °C
400...1650 °C
0…710 °C
Spectral range
4.24 µm
4.64 µm
7.9 µm
Optical resolution
45:1
System accuracy
2), 4)
(at ambient
temperature 235 °C)
±1 %3)
±1.5 °C or ±1 %1)
Repeatability
1), 2)
(at ambient
temperature 235 °C)
±0.5 °C or ±0.5 %2)
Temperature resolution (NETD)
0.1 K
0.5 K
Response time (90 % signal)
10 ms
150 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.10 Measurement specifications [F2/ F6/ P7 models]
1)
Whichever is greater, 2) = 1/ Response time 1s, 3) at object temperatures >300 °C,
±1 %, whichever is greater
4)
Accuracy for thermocouple output: ±2.5 °C or
Technical Data 27-
G5L
G5H
G5HF
Temperature range (scalable)
100...1200 °C
250...1650 °C
200...1650 °C
Spectral range
5,0 µm
Optical resolution
45:1
70:1
45:1
System accuracy
1), 2), 3)
(at ambient
temperature 235 °C)
±1.5 °C or ±1 %
Repeatability 1) (at ambient temperature
235 °C)
±0.5 °C or ±0.5 %
Temperature resolution (NETD)
0,1 K
Response time (90 % signal)
120 ms
80 ms
10 ms
Emissivity/ Gain
0.100...1.100 (adjustable via programming keys or software)
Transmissivity
0.100...1.000 (adjustable via programming keys or software)
Signal processing
Average, peak hold, valley hold (adjustable via programming keys or software)
2.11 Measurement specifications [G5 models]
1)
Whichever is greater, 2) = 1/ Response time 1s, 3) Accuracy for thermocouple output: ±2.5 °C or ±1 %, whichever is greater
-28 -
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.
2.12 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.
D = Distance from front of the sensing head to the object
S = Spot size
Technical Data 29-
LT
Optics: CF1
D:S (focus distance) = 75:1/ 0.9mm@70mm
D:S (far field) = 3.5:1
LT
Optics: SF
D:S (focus distance) = 75:1/ 16mm@1200mm
D:S (far field) = 24:1
-30 -
LT
Optics: CF2
D:S (focus distance) = 75:1/ 1.9mm@150mm
D:S (far field) = 7:1
LT
Optics: CF3
D:S (focus distance) = 75:1/ 2.75mm@200mm
D:S (far field) = 9:1
Technical Data 31-
LT
Optics: CF4
D:S (focus distance) = 75:1/ 5.9mm@450mm
D:S (far field) = 18:1
LTF
Optics: SF
D:S (focus distance) = 50:1/ 24mm@1200mm
D:S (far field) = 20:1
-32 -
LTF
Optics: CF1
D:S (focus distance) = 50:1/ 1.4mm@70mm
D:S (far field) = 3.5:1
LTF
Optics: CF2
D:S (focus distance) = 50:1/ 3mm@150mm
D:S (far field) = 6:1
Technical Data 33-
LTF
Optics: CF3
D:S (focus distance) = 50:1/ 4mm@200mm
D:S (far field) = 8:1
LTF
Optics: CF4
D:S (focus distance) = 50:1/ 9mm@450mm
D:S (far field) = 16:1
-34 -
1MH/ 1MH1/ 2MH/ 2MH1/ 3MH1-H3
Optics: FF
D:S (focus distance) = 300:1/ 12mm@ 3600mm
D:S (far field) = 115:1
05M/ 1ML/ 2ML Optics: FF
D:S (focus distance) = 150:1/ 24mm@ 3600mm
D:S (far field) = 84:1
1MH/ 1MH1/ 2MH/ 2MH1/ 3MH1-H3
Optics: SF
D:S (focus distance) = 300:1/ 3,7mm@ 1100mm
D:S (far field) = 48:1
05M/ 1ML/ 2ML Optics: SF
D:S (focus distance) = 150:1/ 7,3mm@ 1100mm
D:S (far field) = 42:1
Technical Data 35-
1MH/ 1MH1/ 2MH/ 2MH1/ 3MH1-H3
Optics: CF2
D:S (focus distance) = 300:1/ 0,5mm@ 150mm
D:S (far field) = 7,5:1
1ML/ 2ML Optics: CF2
D:S (focus distance) = 150:1/ 1mm@ 150mm
D:S (far field) = 7:1
1MH/ 1MH1/ 2MH/ 2MH1/ 3MH1-H3
Optics: CF3
D:S (focus distance) = 300:1/ 0,7mm@ 200mm
D:S (far field) = 10:1
1ML/ 2ML Optics: CF3
D:S (focus distance) = 150:1/ 1,3mm@ 200mm
D:S (far field) = 10:1
-36 -
3MH Optics: FF
D:S (focus distance) = 100:1/ 36mm@ 3600mm
D:S (far field) = 65:1
1MH/ 1MH1/ 2MH/ 2MH1/ 3MH1-H3
Optics: CF4
D:S (focus distance) = 300:1/ 1,5mm@ 450mm
D:S (far field) = 22:1
1ML/ 2ML Optics: CF4
D:S (focus distance) = 150:1/ 3mm@ 450mm
D:S (far field) = 20:1
Technical Data 37-
3ML Optics: FF
D:S (focus distance) = 60:1/ 60mm@ 3600mm
D:S (far field) = 45:1
3MH Optics: SF
D:S (focus distance) = 100:1/ 11mm@ 1100mm
D:S (far field) = 38:1
3ML Optics: SF
D:S (focus distance) = 60:1/ 18.3mm@ 1100mm
D:S (far field) = 30:1
-38 -
3MH Optics: CF1
D:S (focus distance) = 100:1/ 0.85mm@ 85mm
D:S (far field) = 4:1
3ML Optics: CF1
D:S (focus distance) = 60:1/ 1.4mm@ 85mm
D:S (far field) = 4:1
3MH Optics: CF2
D:S (focus distance) = 100:1/ 1.5mm@ 150mm
D:S (far field) = 7:1
3ML Optics: CF2
D:S (focus distance) = 60:1/ 2.5mm@ 150mm
D:S (far field) = 6:1
Technical Data 39-
3MH Optics: CF3
D:S (focus distance) = 100:1/ 2mm@ 200mm
D:S (far field) = 9:1
3ML Optics: CF3
D:S (focus distance) = 60:1/ 3.4mm@ 200mm
D:S (far field) = 8:1
3MH Optics: CF4
D:S (focus distance) = 100:1/ 4.5mm@ 450mm
D:S (far field) = 19:1
3ML Optics: CF4
D:S (focus distance) = 60:1/ 7.5mm@ 450mm
D:S (far field) = 17:1
-40 -
MT/ MTH/ F2/ F2H/ F6/ F6H/ G5L/ G5HF/
P7 Optics: CF1
D:S (focus distance) = 45:1/ 1.6mm@70mm
D:S (far field) = 3:1
G5H Optics: CF1
D:S (focus distance) = 70:1/ 1mm@70mm
D:S (far field) = 3.4:1
MT/ MTH/ F2/ F2H/ F6/ F6H/ G5L/ G5HF/
P7 Optics: SF
D:S (focus distance) = 45:1/ 27mm@1200mm
D:S (far field) = 25:1
G5H Optics: SF
D:S (focus distance) = 70:1/ 17mm@1200mm
D:S (far field) = 33:1
Technical Data 41-
MT/ MTH/ F2/ F2H/ F6/ F6H/ G5L/ G5HF/
P7 Optics: CF2
D:S (focus distance) = 45:1/ 3.4mm@150mm
D:S (far field) = 6:1
G5H Optics: CF2
D:S (focus distance) = 70:1/ 2.2mm@150mm
D:S (far field) = 6.8:1
MT/ MTH/ F2/ F2H/ F6/ F6H/ G5L/ G5HF/
P7 Optics: CF3
D:S (focus distance) = 45:1/ 4.5mm@200mm
D:S (far field) = 8:1
G5H Optics: CF3
D:S (focus distance) = 70:1/ 2.9mm@200mm
-42 -
MT/ MTH/ F2/ F2H/ F6/ F6H/ G5L/ G5HF/
P7 Optics: CF4
D:S (focus distance) = 45:1/ 10mm@450mm
D:S (far field) = 15:1
G5H Optics: CF4
D:S (focus distance) = 70:1/ 6.5mm@450mm
Mechanical Installation 43-
Keep the optical path free of any obstacles.
For an exact alignment of the head to the object activate the integrated double laser.
[►5.2 Aiming laser]
3 Mechanical Installation
The CTlaser is equipped with a metric M48x1.5 thread and can be installed either directly via the sensor
thread or with help of the supplied mounting nut (standard) and fixed mounting bracket (standard) to a
mounting device available.
Figure 1: CTlaser sensing head
-44 -
Figure 2: Mounting bracket, adjustable in one axis [Order No. - ACCTLFB] – standard scope of supply
Mechanical Installation 45-
Figure 3: Electronic box
-46 -
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.
3.1 Accessories
3.1.1 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.
Figure 4: Air purge collar [Order No.: ACCTLAP], hose connection: 6x8 mm, thread (fitting): G 1/8 inch
Mechanical Installation 47-
3.1.2 Mounting bracket
This adjustable mounting bracket allows an adjustment of the sensor head in two axes.
Figure 5: Mounting bracket, adjustable in two axes [Order No.: ACCTLAB]
-48 -
To avoid condensation on the optics an air purge collar is recommended.
Water flow rate: approx. 2 l/ min
(Cooling water temperature should not
exceed 30 °C)
3.1.3 Water cooled housing
The sensing head is for application at ambient temperatures up to 85 °C. For applications at higher ambient
temperatures we recommend the usage of the optional water cooled housing (operating temperature up to
175 °C) and the optional high temperature cable (operating temperature up to 180 °C).
Figure 6: Water cooled housing [Order No.: ACCTLW], hose connection: 6x8 mm, thread (fitting): G 1/8 inch
Mechanical Installation 49-
3.1.4 Rail mount adapter for electronic box
With the rail mount adapter the CTlaser electronics can be mounted easily on a DIN rail (TS35) according
EN50022.
Figure 7: Rail mount adapter [Order No.: ACCTRAIL]
-50 -
For higher temperatures (up to 180 °C) the CoolingJacket is provided
for CTlaser.
Order No.: ACCTLCJ
For even higher temperatures (up to 315 °C) the
CoolingJacket Advanced is provided for
CTlaser.
Order No.: ACCTLCJA
For detailed information see installation manual.
3.1.5 CoolingJacket und CoolingJacket Advanced
Mechanical Installation 51-
Figure 8: Outdoor protective housing for CTlaser LT with
integrated heater, incl. prot. window (ZnS) and air purge
collar/ 24 V DC
Figure 9: Outdoor protective housing with wall mount
For detailed information see installation manual.
3.1.6 Outdoor protective housing
The CTlaser LT models and the USB server can also be used for outdoor applications by using the outdoor
protective housing (Order No.: ACCTLOPH24ZNS).
-52 -
3.1.7 IR app Connector
The IR App Connector is used to connect the sensor to a smartphone or tablet (► 6 IRmobile app). The
connector cable can be also used for the connection to your PC in combination with the software
CompactConnect which can be downloaded for free under https://www.optris.global/downloads-software.
Figure 10: IR app Connector: USB programming adaptor [Order No.: ACCTIAC]
Electrical Installation 53-
For the Cooling jacket the connector version is needed.
Connector Kit: Subsequent conversion of a standard CTlaser sensor into the connector
version (Order No.: ACCTLCONK).
The basic version is supplied with a connection cable
(connection sensing head-electronics). For the electrical
installation of the CTlaser open at first the cover of the
electronic box (4 screws). Below the display are the screw
terminals for the cable connection.
Figure 11: Basic version
4 Electrical Installation
4.1 Connection of the cables
Basic version
-54 -
Use the original ready-made, fitting connection cables which are optionally available.
Consider the pin assignment of the connector (see Figure 13).
Connector version
This version has a connector plug integrated in the sensor backplane
Figure 12: Connector version
Electrical Installation 55-
PIN
Designation
Wire color (original sensor cable)
Figure 13: Connector plug (exterior view)
1
Detector signal (+)
Yellow
2
Temperature probe head
Brown
3
Temperature probe head
White
4
Detector signal (–)
Green
5
Ground Laser (–)
Grey
6
Power supply Laser (+)
Pink
7
--
Not used
Pin assignment of connector plug (connector version only)
-56 -
+8...36 VDC
Power supply
Figure 14: Opened electronic box
(LT/ LTF/ MT/ F2/ F6/ G5/ P7) with terminal connections
GND
Ground (0 V) of power supply
GND
Ground (0 V) of internal in- and outputs
OUT-AMB
Analog output head temperature (mV)
OUT-TC
Analog output thermocouple (J or K)
OUT-mV/mA
Analog output object temperature (mV or mA)
F1-F3
Functional inputs
AL2
Alarm 2 (Open collector output)
3V SW
PINK/ Power supply Laser (+)
GND
GREY/ Ground Laser (–)
BROWN
Temperature probe head
WHITE
Temperature probe head
GREEN
Detector signal (–)
YELLOW
Detector signal (+)
Designation [models LT/ LTF/ MT/ F2/ F6/ G5/ P7]
Electrical Installation 57-
+8…36 VDC
Power supply
Figure 15: Opened electronic box (05M/ 1M/ 2M/ 3M) with
terminal connections
GND
Ground (0 V) of power supply
GND
Ground (0 V) of internal in- and outputs
AL2
Alarm 2 (Open collector output)
OUT-TC
Analog output thermocouple (J or K)
OUT-mV/mA
Analog output object temperature (mV or mA)
F1-F3
Functional inputs
GND
Ground (0 V)
3V SW
PINK/ Power supply Laser (+)
GND
GREY/ Ground Laser (–)
BROWN
Temperature probe head
WHITE
Temperature probe head
GREEN
Detector signal (–)
YELLOW
Detector signal (+)
Designation [models 05M/ 1M/ 2M/ 3M]
-58 -
Do never connect a supply voltage to the analog outputs as this will destroy the output!
The CTlaser is not a 2-wire sensor!
Use a separate, stabilized power supply unit with an output voltage in the range of 8–36 VDC
which can supply 160 mA. The residual ripple should be max 200 mV.
For all power and data lines use shielded cables only. The sensor shield has to be grounded.
4.2 Power supply
4.3 Cable assembling
The cable gland M12x1.5 allows the use of cables with a diameter of 3 to 5 mm.
1. Remove the isolation from the cable (40 mm power supply, 50 mm signal outputs, 60 mm functional
inputs), cut the shield down to approximately 5 mm and spread the strands out.
2. Extract about 4 mm of the wire isolation and tin the wire ends. Place the pressing screw, the rubber
washer and the metal washers of the cable gland one after the other onto the prepared cable end
(see Figure 16).
Electrical Installation 59-
3. Spread the strands and fix the shield between two of the metal washers.
4. Insert the cable into the cable gland until the limit stop and screw the cap tight. Every single wire may
be connected to the according screw clamps according to their colors.
Figure 16: Cable assembling
-60 -
4.4 Ground connection
4.4.1 05M, 1M, 2M, 3M models
At the bottom side of the mainboard PCB you will find a connector (jumper) which has been placed from
factory side as shown in the picture [bottom and middle pin connected]. In this position the ground
connections (GND power supply/ outputs) are connected with the ground of the electronics housing.
To avoid ground loops and related signal interferences in industrial environments it might be necessary to
interrupt this connection. To do this put the jumper in the opposite position [middle and top pin connected].
If the thermocouple output is used the connection GND – housing should be interrupted generally.
Figure 17: Ground connection
Electrical Installation 61-
4.4.2 LT, LTF, MT, F2, F6, G5, P7 models
At the bottom side of the mainboard PCB you will find a connector (jumper) which has been placed from
factory side as shown in the picture [left and middle pin connected]. In this position the ground connections
(GND power supply/ outputs) are connected with the ground of the electronics housing.
To avoid ground loops and related signal interferences in industrial environments it might be necessary to
interrupt this connection. To do this put the jumper in the other position [middle and right pin connected].
If the thermocouple output is used the connection GND – housing should be interrupted generally.
Figure 18: Ground connection
-62 -
After exchanging a head the calibration code of the new head must be entered into the
electronics.
After modification of the code a reset is necessary to activate the changes.
[►5 Operation]
The calibration code is fixed on a label on the head. Do not remove this label or note the
code. The code is needed if the electronic must be exchanged.
4.5 Exchange of the sensing head
The sensing head is already connected to the electronics by factory default. Inside a certain model group an
exchange of sensing heads and electronics is possible.
Entering of the calibration code
Every head has a specific calibration code, which is printed on the head. For a correct temperature
measurement and functionality of the sensor this calibration code must be stored into the electronic box. The
calibration code consists of five blocks with 4 characters each.
Example: EKJ0 – 0OUD – 0A1B – A17U – 93OZ
block 1 block 2 block 3 block 4 block 5
Electrical Installation 63-
To avoid influences on the accuracy use an exchange cable with the same wire profiles and
specification like the original one.
To enter the code press the Up and Down key (keep pressed) and then the Mode key. The display shows
HCODE and then the 4 signs of the first block. With Up and Down each sign can be changed. Mode switches
to the next sign or next block.
Figure 19: Sensing head
4.6 Exchange of the head cable
The sensing head cable can also be exchanged if necessary.
-64 -
Consider that there are different connection pins on the mainboard (OUT-mV/mA or OUT-TC)
according to the chosen output signal.
1. For a dismantling on the head side open the cover plate on the back side of the head first. Then
remove the terminal block and loose the connections.
2. After the new cable has been installed proceed in reversed order. Be careful the cable shield is
properly connected to the head housing.
4.7 Outputs and Inputs
4.7.1 Analog outputs
The CTlaser has two analog output channels.
Output channel 1
This output is used for the object temperature. The selection of the output signal can be done via the
programming keys [►5 Operation]. The CompactConnect software allows the programming of output
channel 1 as an alarm output.
Electrical Installation 65-
Output signal
Range
Connection pin on CTlaser board
Voltage
0 ... 5 V
OUT-mV/mA
Voltage
0 ... 10 V
OUT-mV/mA
Current
0 ... 20 mA
OUT-mV/mA
Current
4 ... 20 mA
OUT-mV/mA
Thermocouple
TC J
OUT-TC
Thermocouple
TC K
OUT-TC
Output channel 2 [on LT/ G5/ P7 only]
The connection pin OUT AMB is used for output of the head temperature [-20–180 °C as 0–5 V or 0–10 V
signal]. The CompactConnect software allows the programming of output channel 2 as an alarm output.
Instead of the head temperature THead also the object temperature TObj or electronic box temperature TBox can
be selected as alarm source.
-66 -
The Ethernet interface requires a minimum 12 V supply voltage. Pay attention to the notes on
the according interface manuals.
4.7.2 Digital Interfaces
CTlaser sensors can be optionally equipped with an USB-, RS232-, RS485-, CAN Bus-, Profibus DP- or
Ethernet-interface.
Figure 20: Digital interfaces
Electrical Installation 67-
The switching thresholds are in accordance with the values for alarm 1 and 2
[►4.7.5 Alarms]. The alarm values are set according to the ►2.1 Factory settings. For
advanced settings (change of low- and high alarm) a digital interface (USB, RS232) and the
software CompactConnect is needed.
A simultaneous installation of a digital interface and the relay outputs is not possible.
1. To install an interface, plug the interface board into the place provided, which is located beside the
display. In the correct position the holes of the interface match with the thread holes of the electronic
box.
2. Press the board down to connect it and use both M3x5 screws for fixing. Plug the preassembled
interface cable with the terminal block into the male connector of the interface board.
4.7.3 Relay outputs
The CTlaser can optionally be equipped with a relay output. The relay board will be installed in the same way
as the digital interfaces.
The relay board provides two fully isolated switches, which have the capability to switch
max 60 VDC/ 42 VAC
, 0.4 A, DC/AC. A red LED shows the closed switch.
RMS
-68 -
F1 (digital):
trigger (a 0 V level on F1 resets the hold functions)
F2 (analog):
external emissivity adjustment [0–10 V: 0 V ► = 0.1; 9 V ► = 1; 10 V ► = 1,1]
F3 (analog):
external compensation of ambient temperature/ the range is scalable via software [0–10 V ► -40–900 °C/ pre-set range: -20–200 °C]
F1-F3 (digital):
emissivity (digital choice via table)
A non-connected input represents:
F1 = High | F2, F3 = Low
[High level: ≥ +3 V…+36 V | Low level: ≤ +0,4 V…–36 V]
4.7.4 Functional inputs
The three functional inputs F1 – F3 can be programmed with the CompactConnect software, only.
Electrical Installation 69-
All alarms (alarm 1, alarm 2, output channel 1 and 2 if used as alarm output) have a fixed
hysteresis of 2 K.
4.7.5 Alarms
The CTlaser has the following Alarm features:
Output channel 1 and 2 [channel 2 on LT/ G5/ P7 only]
To activate, the according output channel has to be switched into digital mode. For this purpose the software
CompactConnect is required.
Visual alarms
These alarms will cause a change of the color of the LCD display and will also change the status of the
optional relays interface. In addition the Alarm 2 can be used as open collector output at pin AL2 on the
mainboard [24 V/ 50 mA].
The alarms are defined as follows by factory default:
-70 -
Alarm 1
Normally closed/ Low-Alarm
Alarm 2
Normally open/ High-Alarm
Both alarms affect the color of the LCD display:
BLUE: alarm 1 active
RED: alarm 2 active
GREEN: no alarm active
For extended setup like definition as low or high alarm [via change of normally open/ closed], selection of
the signal source [TObj, THead, TBox] a digital interface (e.g. USB, RS232) including the software
CompactConnect is needed.
Electrical Installation 71-
The transistor acts as a switch. In case of alarm, the contact is closed.
A load/consumer (Relay, LED or a resistor) must always be connected.
The alarm voltage (here 24V) must not be connected directly to the alarm output (short
circuit).
Open collector output / AL2:
-72 -
Pressing the Mode button again recalls the last called function on the display. The signal
processing features Peak hold and Valley hold cannot be selected simultaneously.
To set the CTlaser back to the factory default settings, press at first the Down-key and then
the Mode-key and keep both pressed for approx. 3 seconds. RESET appears as
confirmation in the display.
The programming keys Mode, Up and Down enable the user to set the
sensor on-site. The current measuring value or the chosen feature is
displayed. With Mode the operator obtains the chosen feature, with Up
and Down the functional parameters can be selected – a change of
parameters will have immediate effect. If no key is pressed for more
than 10 seconds the display automatically shows the calculated object
temperature (according to the signal processing).
Figure 21: Display of the device
5 Operation
After power up the unit the sensor starts an initializing routine for some seconds. During this time the display
will show INIT. After this procedure the object temperature is shown in the display. The display backlight
color changes accordingly to the alarm settings [►4.7.5 Alarms].
5.1 Sensor setup
Operation 73-
Display
Mode [Sample]
Adjustment Range
S ON
Laser Sighting [On]
ON/ OFF
142.3C
Object temperature (after signal processing) [142,3 °C]
fixed
127CH
Head temperature [127 °C]
fixed
25CB
Box temperature [25 °C]
fixed
142CA
Current object temperature [142 °C]
fixed
ð MV5
Signal output channel 1 [0-5 V]
ð 0-20 = 0–20 mA/ ð 4-20 = 4–20 mA/ ð MV5 = 0–5 V/
ð MV10 = 0-10 V/ ð TCJ = thermocouple type J/
ð TCK = thermocouple type K
E0.970
Emissivity [0,970]
0,100 ... 1,100
T1.000
Transmissivity [1,000]
0,100 ... 1,100
A 0.2
Signal output Average [0,2 s]
A---- = inactive/ 0,1 … 999,9 s
P----
Signal output Peak hold [inactive]
P---- = inactive/ 0,1 … 999,9 s/ P oo oo oo oo = infinite
V----
Signal output Valley hold [inactive]
V---- = inactive/ 0,1 … 999,9 s/ V oo oo oo oo = infinite
u 0.0
Lower limit temperature range [0 °C]
depending on model/ inactive at TCJ- and TCK-output
n 500.0
Upper limit temperature range [500 °C]
depending on model/ inactive at TCJ- and TCK-output
[ 0.00
Lower limit signal output [0 V]
according to the range of the selected output signal
] 5.00
Upper limit signal output [5 V]
according to the range of the selected output signal
U °C
Temperature unit [°C]
°C/ °F
| 30.0
Lower alarm limit [30 °C]
depending on model
|| 100.0
Upper alarm limit [100 °C]
depending on model
XHEAD
Ambient temperature compensation [head temperature]
XHEAD = head temperature/ -40,0 … 900,0 °C (for LT)
as fixed value for compensation/ returning to XHEAD
(head temperature) by pressing Up and Down together
M 01
Multidrop adress [1] (only with RS485 interface)
RS422 mode
01 … 32
RS422 (Press Down button on M01)
B 9.6
Baud rate in kBaud [9,6]
9,6/ 19,2/ 38,4/ 57,6/ 115,2 kBaud
Table 2: Sensor settings
-74 -
S ON
Activating (ON) and Deactivating (OFF) of the Sighting Laser. By pressing Up or Down
the laser can be switched on and off.
ð MV5
Selection of the Output signal. By pressing Up or Down the different output signals can
be selected (see Table 2).
E0.970
Setup of Emissivity. Pressing Up increases the value, Down decreases the value (also
valid for all further functions). The emissivity is a material constant factor to describe the
ability of the body to emit infrared energy [►9 Emissivity].
T1.000
Setup of Transmissivity. This function is used if an optical component (protective
window, additional optics e.g.) is mounted between sensor and object. The standard
setting is 1.000 = 100 % (if no protective window etc. is used).
A 0.2
Setup of Average time. In this mode an arithmetic algorithm will be performed to
smoothen the signal. The set time is the time constant. This function can be combined
with all other post processing functions. The shortest value is 0.001 s and can be
increased/ decreased only by values of the power series of 2 (0.002, 0.004, 0.008,
0.016, 0.032, ...). If the value is set to 0.0 the display will show --- (function deactivated).
P----
Setup of Peak hold. If the value is set to 0.0 the display will show --- (function
deactivated). In this mode the sensor is waiting for descending signals. If the signal
descends the algorithm maintains the previous signal peak for the specified time.
Operation 75-
After the hold time the signal will drop down to the second highest value or will descend
by 1/8 of the difference between the previous peak and the minimum value during the
hold time. This value will be held again for the specified time. After this the signal will
drop down with slow time constant and will follow the current object temperature.
V----
Setup of Valley hold. If the value is set to 0.0 the display will show --- (function
deactivated). In this mode the sensor waits for ascending signals. The definition of the
algorithm is according to the peak hold algorithm (inverted).
-76 -
Signal graph
with P----
▬ TProcess with Peak Hold (Hold time = 1s)
▬ TActual without post processing
u 0.0
Setup of the Lower limit of temperature range. The minimum difference between
lower and upper limit is 20 K. If you set the lower limit to a value ≥ upper limit the upper
limit will be adjusted to [lower limit + 20 K] automatically.
Operation 77-
n 500.0
Setup of the Upper limit of the temperature range. The minimum difference between
upper and lower limit is 20 K. The upper limit can only be set to a value = lower limit +
20 K.
[ 0.00
Setup of the Lower limit of the signal output. This setting allows an assignment of a
certain signal output level to the lower limit of the temperature range. The adjustment
range corresponds to the selected output mode (e.g. 0-5 V).
] 5.00
Setup of the Upper limit of the signal output. This setting allows an assignment of a
certain signal output level to the upper limit of the temperature range. The adjustment
range corresponds to the selected output mode (e.g. 0-5 V).
U °C
Setup of the Temperature unit [°C or °F].
| 30.0
Setup of the Lower alarm limit. This value corresponds to Alarm 1 [►4.7.5 Alarms]
and is also used as threshold value for relay 1 (if the optional relay board is used).
|| 100.0
Setup of the Upper alarm limit. This value corresponds to Alarm 2 [►4.7.5 Alarms]
and is also used as threshold value for relay 2 (if the optional relay board is used).
XHEAD
Setup of the Ambient temperature compensation. In dependence on the emissivity
value of the object a certain amount of ambient radiation will be reflected from the object
surface. To compensate this impact, this function allows the setup of a fixed value which
represents the ambient radiation. If XHEAD is shown the ambient temperature value will
be taken from the head-internal probe. To return to XHEAD press Up and Down
together.
M 01
Setup of the Multidrop address. In a RS485 network each sensor will need a specific
address. This menu item will only be shown if a RS485 interface board is plugged in. For
using the RS422 mode, press once the down button on M01.
B 9.6
Setup of the Baud rate for digital data transfer.
Especially if there is a big difference between the ambient temperature at
the object and the head temperature the use of ambient temperature
compensation is recommended.
-78 -
Operation 79-
Do not directly point the laser at the eyes of persons or animals! Do not stare into the laser
beam. Avoid indirect exposure via reflective surfaces!
The two laser points mark the position of the measuring spot, but not its exact size. The exact
size of the measurement spot can be found in the optical charts [►2.12 Optical charts]. 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.
At ambient temperatures >50 °C the laser will be switched off automatically.
The laser should only be used for sighting and positioning of the sensor. A permanent use of
the laser can reduce the lifetime of the laser diodes.
Furthermore, in a permanent use of the laser, the measurement accuracy can be affected.
5.2 Aiming laser
The CTlaser has an integrated double laser aiming which helps for the alignment of the sensor. Within the
two laser points lies the measurement spot. At the focus point of the according optics
[►2.12 Optical charts] both lasers are crossing and showing as one dot the minimum spot. This enables an
alignment of the sensor to the object.
-80 -
Figure 22: Identification of the laser
The laser can be activated/ deactivated via the programming keys on the unit or via the software. If the laser
is activated a yellow LED is shining (beside temperature display).
Operation 81-
The display of the sensor can show the following error messages:
LT/ LTF/ MT/ F2/ F6/ G5/ P7 models:
05M/ 1M/ 2M/ 3M models:
OVER
Object temperature too high
1. Digit:
UNDER
Object temperature too low
0x
No error
^^^CH
Head temperature too high
1x
Head temperature probe short circuit to GND
vvvCH
Head temperature too low
2x
Box temperature too low
4x
Box temperature too high
6x
Box temperature probe disconnected
8x
Box temperature probe short circuit to GND
2. Digit:
x0
No error
x2
Object temperature too high
x4
Head temperature too low
x8
Head temperature too high
xC
Head temperature probe disconnected
5.3 Error messages
-82 -
6 IRmobile app
The CTlaser sensor has a direct connection to an Android smartphone or tablet. All you
have to do is download the IRmobile app for free in the Google Play Store. This can also be
done via the QR code. An IR app connector is required for connection to the device (Part-
No.: ACCTIAC).
With IRmobile you are able to monitor and analyse your infrared temperature measurement on a connected
smartphone or tablet. This app works on most Android devices running 4.4 or higher with a micro USB port
supporting USB-OTG (On The Go). It is easy to operate: after you plug your CTlaser device to the micro
USB port of your phone or tablet, the app will start automatically. The device is powered by your phone.
Different digital temperature values can be displayed in the temperature time diagram. You can easily zoomin the diagram to see more details and small signal changes.
IRmobile app 83-
IRmobile app features:
Temperature time diagram with zoom function
Digital temperature values
Setup of emissivity, transmissivity and other parameters
Scaling of 4-20 mA/ 0-10 V output and setup of alarm output
Change of temperature unit: Celsius or Fahrenheit
Saving/loading of configurations and T/t diagrams
Restore factory default sensor settings
Integrated simulator
Supported for:
CT/CTlaser sensor
CSmicro IR thermometers (v3 models only)
For android devices running 4.4+ with a micro USB port supporting USB-OTG (On The Go)
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Minimum system requirements:
Windows 7, 8, 10
USB interface
Hard disc with at least 30 MByte of free space
At least 128 MByte RAM
CD-ROM drive
A detailed description is provided in the software manual on the software CD.
7 Software CompactConnect
7.1 Installation
1. Insert the installation CD into the according drive on your computer. If the autorun option is
activated the installation wizard will start automatically.
2. Otherwise start CDsetup.exe from the CD-ROM. Follow the instructions of the wizard until the
installation is finished.
Software CompactConnect 85-
Figure 23: Software CompactConnect
Main functions:
Graphic display for temperature trends
and automatic data logging for analysis
and documentation
Complete sensor setup and remote
controlling
Adjustment of signal processing functions
Programming of outputs and functional
inputs
The installation wizard will place a launch icon on the desktop and in the start menu:
Start\Programs\CompactConnect
To uninstall the software from your system use the uninstall icon in the start menu.
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For further information see protocol and command description on the software CD
CompactConnect in the directory: \Co mmands.
Baud rate:
9.6...115.2 kBaud (adjustable on the unit or via software)
Data bits:
8
Parity:
none
Stop bits:
1
Flow control
off
7.2 Communication settings
7.2.1 Serial Interface
7.2.2 Protocol
All sensors of the CTlaser series are using a binary protocol. Alternatively they can be switched to an ASCII
protocol. To get a fast communication the protocol has no additional overhead with CR, LR or ACK bytes.
Software CompactConnect 87-
Decimal:
131
HEX:
0x83
Data, Answer:
byte 1
Result:
0 – Binary protocol
1 – ASCII protocol
7.2.3 ASCII-Protocol
To switch to the ASCII protocol, use the following command:
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Decimal:
112
HEX:
0x70
Data, Answer:
byte 1
Result:
0 – Data will be written into the flash memory
1 – Data will not be written into the flash memory
7.2.4 Save parameter settings
After switch-on of the CTlaser sensor the flash mode is active. This means, changed parameter settings will
be saved in the internal Flash-EEPROM and will be kept also after the sensor is switched off. If the settings
need to change continuously the flash mode can be switched off by using the following command:
If the flash mode is off, all settings only will be kept as long as the unit is powered. This means that all
previous settings are getting lost if the unit is switched off and powered on again. The command 0x71 will
poll the current state.
Basics of Infrared Thermometry 89-
8 Basics of Infrared Thermometry
Depending on the temperature each object emits a certain amount of infrared radiation. A change in the
temperature of the object is accompanied by a change in the intensity of the radiation. For the measurement
of “thermal radiation” infrared thermometry uses a wave-length ranging between 1 µm and 20 µm. The
intensity of the emitted radiation depends on the material. This material contingent constant is described with
the help of the emissivity which is a known value for most materials (►9 Emissivity).
Infrared thermometers are optoelectronic sensors. They calculate the surface temperature on the basis of
the emitted infrared radiation from an object. The most important feature of infrared thermometers is that
they enable the user to measure objects contactless. Consequently, these products help to measure the
temperature of inaccessible or moving objects without difficulties. Infrared thermometers basically consist of
the following components:
lens
spectral filter
detector
The specifications of the lens decisively determine the optical path of the infrared thermometer, which is
characterized by the ratio Distance to Spot size. The spectral filter selects the wavelength range, which is
relevant for the temperature measurement. The detector in cooperation with the processing electronics
transforms the emitted infrared radiation into electrical signals.
electronics (amplifier/ linearization/ signal processing)
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9 Emissivity
9.1 Definition
The intensity of infrared radiation, which is emitted by each body, depends on the temperature as well as on
the radiation features of the surface material of the measuring object. The emissivity (ε – Epsilon) is used as
a material constant factor to describe the ability of the body to emit infrared energy. It can range between 0
and 100 %. A “blackbody” is the ideal radiation source with an emissivity of 1.0 whereas a mirror shows an
emissivity of 0.1.
If the emissivity chosen is too high, the infrared thermometer may display a temperature value which is much
lower than the real temperature – assuming the measuring object is warmer than its surroundings. A low
emissivity (reflective surfaces) carries the risk of inaccurate measuring results by interfering infrared radiation
emitted by background objects (flames, heating systems, chamottes). To minimize measuring errors in such
cases, the handling should be performed very carefully and the unit should be protected against reflecting
radiation sources.
Emissivity 91-
9.2 Determination of unknown emissivity
► First determine the actual temperature of the measuring object with a thermocouple or contact sensor.
Second, measure the temperature with the infrared thermometer and modify the emissivity until the
displayed result corresponds to the actual temperature.
► If you monitor temperatures of up to 380 °C you may place a special plastic sticker (emissivity dots –
Order No.: ACLSED) onto the measuring object, which covers it completely. Set the emissivity to 0.95
and take the temperature of the sticker. Afterwards, determine the temperature of the adjacent area on
the measuring object and adjust the emissivity according to the value of the temperature of the sticker.
► Cove a part of the surface of the measuring object with a black, flat paint with an emissivity of 0,98. Adjust
the emissivity of your infrared thermometer to 0,98 and take the temperature of the colored surface.
Afterwards, determine the temperature of a directly adjacent area and modify the emissivity until the
measured value corresponds to the temperature of the colored surface.
CAUTION: On all three methods the object temperature must be different from ambient temperature.
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9.3 Characteristic emissivity
In case none of the methods mentioned above help to determine the emissivity you may use the emissivity
table ►Appendix A and Appendix B. These are average values only. The actual emissivity of a material
depends on the following factors:
temperature
measuring angle
geometry of the surface
thickness of the material
constitution of the surface (polished, oxidized, rough, sandblast)
spectral range of the measurement
transmissivity (e.g. with thin films)
Appendix A – Table of emissivity for metals 93-
1,0 µm 1,6 µm 5,1 µm 8-14 µm
Aluminium non oxidized 0,1-0,2 0,02-0,2 0,02-0,2 0,02-0,1
polished 0,1-0,2 0,02-0,1 0,02-0,1 0,02-0,1
roughened 0,2-0,8 0,2-0,6 0,1-0,4 0,1-0,3
oxidized 0,4 0,4 0,2-0,4 0,2-0,4
Brass polished 0,35 0,01-0,05 0,01-0,05 0,01-0,05
roughened 0,65 0,4 0,3 0,3
oxidized 0,6 0,6 0,5 0,5
Copper polished 0,05 0,03 0,03 0,03
roughened 0,05-0,2 0,05-0,2 0,05-0,15 0,05-0,1
oxidized 0,2-0,8 0,2-0,9 0,5-0,8 0,4-0,8
Chrome 0,4 0,4 0,03-0,3 0,02-0,2
Gold 0,3 0,01-0,1 0,01-0,1 0,01-0,1
Haynes alloy 0,5-0,9 0,6-0,9 0,3-0,8 0,3-0,8
Inconel electro polished 0,2-0,5 0,25 0,15 0,15
sandblast 0,3-0,4 0,3-0,6 0,3-0,6 0,3-0,6
oxidized 0,4-0,9 0,6-0,9 0,6-0,9 0,7-0,95
Iron non oxidized 0,35 0,1-0,3 0,05-0,25 0,05-0,2
rusted 0,6-0,9 0,5-0,8 0,5-0,7
oxidized 0,7-0,9 0,5-0,9 0,6-0,9 0,5-0,9
forged, blunt 0,9 0,9 0,9 0,9
molten 0,35 0,4-0,6
Iron, casted non oxidized 0,35 0,3 0,25 0,2
oxidized 0,9 0,7-0,9 0,65-0,95 0,6-0,95
Material
typical Emissivity
Spectral response
Appendix A – Table of emissivity for metals
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1,0 µm 1,6 µm 5,1 µm 8-14 µm
Lead polished 0,35 0,05-0,2 0,05-0,2 0,05-0,1
roughened 0,65 0,6 0,4 0,4
oxidized 0,3-0,7 0,2-0,7 0,2-0,6
Magnesium 0,3-0,8 0,05-0,3 0,03-0,15 0,02-0,1
Mercury 0,05-0,15 0,05-0,15 0,05-0,15
Molybdenum non oxidized 0,25-0,35 0,1-0,3 0,1-0,15 0,1
oxidized 0,5-0,9 0,4-0,9 0,3-0,7 0,2-0,6
Monel (Ni-Cu) 0,3 0,2-0,6 0,1-0,5 0,1-0,14
Nickel electrolytic 0,2-0,4 0,1-0,3 0,1-0,15 0,05-0,15
oxidized 0,8-0,9 0,4-0,7 0,3-0,6 0,2-0,5
Platinum black 0,95 0,9 0,9
Silver 0,04 0,02 0,02 0,02
Steel polished plate 0,35 0,25 0,1 0,1
rustless 0,35 0,2-0,9 0,15-0,8 0,1-0,8
heavy plate 0,5-0,7 0,4-0,6
cold-rolled 0,8-0,9 0,8-0,9 0,8-0,9 0,7-0,9
oxidized 0,8-0,9 0,8-0,9 0,7-0,9 0,7-0,9
Tin non oxidized 0,25 0,1-0,3 0,05 0,05
Titanium polished 0,5-0,75 0,3-0,5 0,1-0,3 0,05-0,2
oxidized 0,6-0,8 0,5-0,7 0,5-0,6
Wolfram polished 0,35-0,4 0,1-0,3 0,05-0,25 0,03-0,1
Zinc polished 0,5 0,05 0,03 0,02
oxidized 0,6 0,15 0,1 0,1
Spectral response
Material
typical Emissivity
Appendix B – Table of emissivity for non-metals 95-
1,0 µm 2,2 µm 5,1 µm 8-14 µm
Asbestos 0,9 0,8 0,9 0,95
Asphalt 0,95 0,95
Basalt 0,7 0,7
Carbon non oxidized 0,8-0,9 0,8-0,9 0,8-0,9
graphite 0,8-0,9 0,7-0,9 0,7-0,8
Carborundum 0,95 0,9 0,9
Ceramic 0,4 0,8-0,95 0,8-0,95 0,95
Concrete 0,65 0,9 0,9 0,95
Glass plate 0,2 0,98 0,85
melt 0,4-0,9 0,9
Grit 0,95 0,95
Gypsum 0,4-0,97 0,8-0,95
Ice 0,98
Limestone 0,4-0,98 0,98
Paint non alkaline 0,9-0,95
Paper any color 0,95 0,95
Plastic >50 µm non transparent 0,95 0,95
Rubber 0,9 0,95
Sand 0,9 0,9
Snow 0,9
Soil 0,9-0,98
Textiles 0,95 0,95
Water 0,93
Wood natural 0,9-0,95 0,9-0,95
Material
typical Emissivity
Spectral response
Appendix B – Table of emissivity for non-metals
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Appendix C – Smart Averaging
The average function is generally used to smoothen the output signal. With the adjustable parameter time
this function can be optimal adjusted to the respective application. One disadvantage of the average function
is that fast temperature peaks which are caused by dynamic events are subjected to the same averaging
time. Therefore those peaks can only be seen with a delay on the signal output.
The function Smart Averaging eliminates this disadvantage by passing those fast events without averaging
directly through to the signal output.
Signal graph with Smart Averaging function Signal graph without Smart Averaging function
Appendix D – Declaration of Conformity 97-
Appendix D – Declaration of Conformity
optris CTlaser – E2018-12-A
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