Operator’s Manual
optris® CTvideo
1M/ 2M/ 3M
Infrared-thermometer
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.de
Internet: www.optris.de
-Table of Contents
3-
Table of Contents
Table of Contents ............................................................................................................................................. 3
1
2
General Information ................................................................................................................................. 7
1.1
Description ....................................................................................................................................... 7
1.2
Warranty ........................................................................................................................................... 8
1.3
Scope of Supply ............................................................................................................................... 8
1.4
Maintenance ..................................................................................................................................... 9
1.5
Model Overview .............................................................................................................................. 10
1.6
Factory Default Settings ................................................................................................................. 11
Technical Data ........................................................................................................................................13
2.1
General Specifications ................................................................................................................... 13
2.2
Electrical Specifications.................................................................................................................. 14
2.3
Measurement Specifications [1M models] ..................................................................................... 15
2.4
Measurement Specifications [2M models] ..................................................................................... 16
-4
2.5
Measurement Specifications [3M models] ..................................................................................... 17
2.6
Optical Charts ................................................................................................................................. 18
3
Mechanical Installation ..........................................................................................................................21
4
Accessories ............................................................................................................................................24
5
6
4.1
Air Purge Collar .............................................................................................................................. 24
4.2
Mounting Bracket ........................................................................................................................... 25
4.3
Water Cooled Housing ................................................................................................................... 26
4.4
Rail Mount Adapter for Electronic box ............................................................................................ 27
Electrical Installation .............................................................................................................................28
5.1
Cable Connections ......................................................................................................................... 28
5.2
Ground Connection ........................................................................................................................ 32
5.3
Sensing head Calibration Code ..................................................................................................... 33
Outputs and Inputs ................................................................................................................................34
6.1
Analog Output ................................................................................................................................ 34
-Table of Contents
7
6.2
Digital Interface .............................................................................................................................. 35
6.3
Functional Inputs ............................................................................................................................ 35
6.4
Alarms ............................................................................................................................................ 36
Operating ................................................................................................................................................37
7.1
8
9
5-
Sensor Setup .................................................................................................................................. 37
Sighting ...................................................................................................................................................43
8.1
Focusing and Video Sighting ......................................................................................................... 44
8.2
Error messages .............................................................................................................................. 45
Software CompactConnect ...................................................................................................................46
9.1
Installation ...................................................................................................................................... 46
9.2
Communication Settings ................................................................................................................ 47
10
Basics of Infrared Thermometry...........................................................................................................49
11
Emissivity ...............................................................................................................................................50
11.1
Definition......................................................................................................................................... 50
-6
11.2
Determination of unknown Emissivities .......................................................................................... 50
11.3
Characteristic Emissivities.............................................................................................................. 51
Appendix A – Emissivity Table Metals .........................................................................................................52
Appendix B – Emissivity Table Non Metals .................................................................................................54
Appendix C – Smart Averaging .....................................................................................................................55
Appendix D – Declaration of Conformity .....................................................................................................56
-General Information
1 General Information
1.1
Description
Thank you for choosing the optris® CTvideo infrared thermometer.
The sensors of the optris CTvideo series are noncontact infrared temperature sensors.
They calculate the surface temperature based on the emitted infrared energy of objects [►10 Basics of
Infrared Thermometry]. The alignment of the sensor can be done with the integrated video sighting and
crosshair laser aiming.
The sensor housing of the CTvideo 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 CTvideo 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.
7-
-8
► 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 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





CTvideo sensing head with connection cable and electronic box
Mounting nut and mounting bracket (fixed)
5 m USB cable
Software CompactConnect
Operators manual
-General Information
1.4
9-
Maintenance
Lens cleaning: Blow off loose particles using clean compressed air. The lens surface can be cleaned with a
soft, humid tissue moistened with water or a water based glass cleaner.
Never use cleaning compounds which contain solvents (neither for the lens nor for the housing).
-10
1.5
-
Model Overview
The sensors of the CTvideo series are available in the following basic versions:
Model
CT video 1M
CT video 2M
CT video 3M
Model code
Measurement
range
1ML
485 to 1050 °C
1MH
650 to 1800 °C
1MH1
800 to 2200 °C
2ML
250 to 800 °C
2MH
385 to 1600 °C
2MH1
490 to 2000 °C
3ML
50 to 400 °C
3MH
100 to 600 °C
3MH1
150 to 1000 °C
3MH2
200 to 1500 °C
3MH3
250 to 1800 °C
Spectral
response
Typical applications
1,0 µm
Metals and ceramic surfaces
1,6 µm
Metals and ceramic surfaces
2,3 µm
Metals at low object temperatures
(ab 50 °C)
In the following chapters of this manual you will find only the short model codes.
On the 1M, 2M, 3M models the whole measurement range is split into several sub ranges (L, H, H1 etc.).
-General Information
1.6
11-
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
Average time (AVG)
inactive
Smart Averaging
active
Peak hold
inactive
Valley hold
inactive
1ML
1MH
1MH1
2ML
2MH
2MH1
3ML
3MH
3MH1
Lower limit temperature range [°C]
485
650
800
250
385
490
50
100
150
Upper limit temperature range [°C]
1050
1800
2200
800
1600
2000
400
600
1000
Lower alarm limit [°C]
(normally closed)
600
800
1200
350
500
800
100
250
350
Upper alarm limit [°C]
(normally open)
900
1400
1600
600
1200
1400
300
500
600
-12
3MH2
3MH3
Lower limit temperature range [°C]
200
250
Upper limit temperature range [°C]
1500
1800
Lower alarm limit [°C]
(normally closed)
550
750
Upper alarm limit [°C]
(normally open)
1000
1200
Lower limit signal output
0V
Upper limit signal output
5V
Temperature unit
°C
Ambient temperature compensation
internal head temperature probe
Baudrate [kBaud]
115
Laser
inactive
Smart Averaging means a dynamic average adaptation at high signal edges.
[Activation via software only].
►Appendix C – Smart Averaging
-Technical Data
13-
2 Technical Data
2.1
General Specifications
Sensing head
Electronic box
Environmental rating
Ambient temperature
IP65 (NEMA-4)
1)
-20...70 °C
-20...85 °C
Storage temperature
-40...85 °C
Relative humidity
10...95 %, non condensing
Material
stainless steel
die casting zinc
Dimensions
116 mm x 50 mm, M48x1,5
89 mm x 70 mm x 30 mm
Weight
600 g
420 g
Cable length
3 m (standard), 5 m, 10 m
Cable diameter
5 mm
Ambient temperature cable
Cable sensing head-electronics
USB-cable
1)
max. 80 °C [High temperature cable (optional): 180 °C]
max. 80 °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
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.
-14
2.2
-
Electrical Specifications
Power Supply
8–36 VDC
Current draw
max. 160 mA
Aiming laser
635 nm, 1 mW, On/ Off via programming keys or software
Video sighting
Digital (USB 2.0), 640 x 480 px, FOV 3.1° x 2.4°
Output/ analog
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 interface
USB 2.0
Functional inputs
F1-F3; software programmable for the following functions:



external emissivity adjustment
ambient temperature compensation
trigger (reset of hold functions)
Input impedance F2 and F3: 43 kΩ
-Technical Data
2.3
15-
Measurement Specifications [1M models]
Temperature range (scalable)
1ML
1MH
1MH1
485...1050 °C
650…1800 °C
800...2200 °C
Spectral range
1,0 µm
Optical resolution
System accuracy
150:1
1), 2), 3)
±(0,3 % of reading +2 °C)
Repeatability 1), 3)
±(0,1 % of reading +1 °C)
Temperature resolution (NETD)
Exposure time (90% signal)
4)
1 ms
0,100...1,100 (adjustable via programming keys or software)
Transmissivity
0,100...1,100 (adjustable via programming keys or software)
at ambient temperature 235 °C
Accuracy for thermocouple output: ±2,5 °C or ±1 %
3)
 = 1/ Response time 1 s
4)
with dynamic adaptation at low signal levels
2)
0,1 K
Emissivity/ Gain
Signal processing
1)
300:1
Average, peak hold, valley hold (adjustable via programming keys or software)
-16
2.4
-
Measurement Specifications [2M models]
Temperature range (scalable)
2ML
2MH
2MH1
250...800 °C
385…1600 °C
490...2000 °C
Spectral range
1,6 µm
Optical resolution
System accuracy
150:1
1), 2), 3)
±(0,3 % of reading +2 °C)
Repeatability 1), 3)
±(0,1 % of reading +1 °C)
Temperature resolution (NETD)
Exposure time (90% signal)
4)
1 ms
0,100...1,100 (adjustable via programming keys or software)
Transmissivity
0,100...1,100 (adjustable via programming keys or software)
at ambient temperature 235 °C
Accuracy for thermocouple output: ±2,5 °C or ±1 %
3)
 = 1/ Response time 1 s
4)
with dynamic adaptation at low signal levels
2)
0,1 K
Emissivity/ Gain
Signal processing
1)
300:1
Average, peak hold, valley hold (adjustable via programming keys or software)
-Technical Data
2.5
17-
Measurement Specifications [3M models]
3ML
Temperature range (scalable)
50...400 °C
3MH
1)
100…600 °C
Spectral range
60:1
2), 3), 4)
Exposure time (90 % signal)
150...1000 °C
200…1500 °C
250…1800 °C
100:1
300:1
4)
0,1 K
5)
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)
TObject > THead+25 °C
at ambient temperature 235 °C
Accuracy for thermocouple output: ±2,5 °C or ±1 %
4)
 = 1/ Response time 1 s
5)
with dynamic adaptation at low signal levels
3)
3MH3
±(0,1 % of reading +1 °C)
Temperature resolution (NETD)
2)
3MH2
±(0,3 % of reading +2 °C)
Repeatability 2), 4)
1)
3MH1
2,3 µm
Optical resolution
System accuracy
1)
-18
2.6
-
Optical Charts
The vario optics of the CTvideo allows a smooth focusing of the optics to the desired distance. The sensors
are available in two optic versions:
Optics
Focus adjustable in the range
SFV
200 mm till infinity
CFV
90 mm till 250 mm
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.
The following tables show the diameter of the measuring spot for some selected distances. 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.
-Technical Data
19-
3ML: SF optics (D:S=60:1)
spot size
measurement distance
mm
mm
3,3
200
5,0
300
7,5
450
11,7
700
18,3
1100
26,7
1600
3ML: CF optics (D:S=60:1)
spot size
measurement distance
mm
mm
1,5
90
2,0
120
2,5
150
3,0
180
3,5
210
4,2
250
3MH: SF optics (D:S=100:1)
spot size
mm
measurement distance
mm
2,0
200
3,0
300
4,5
450
7,0
700
11,0
1100
16,0
1600
3MH: CF optics (D:S=100:1)
spot size
mm
measurement distance
mm
0,9
90
1,2
120
1,5
150
1,8
180
2,1
210
2,5
250
1ML/2ML: SF optics (D:S=150:1)
spot size
mm
measurement distance
mm
1,3
200
2,0
300
3,0
450
4,7
700
7,3
1100
10,7
1600
1ML/2ML: CF optics (D:S=150:1)
spot size
mm
measurement distance
mm
0,6
90
0,8
120
1,0
150
1,2
180
1,4
210
1,7
250
41,7
2500
83,3
5000
25,0
2500
50,0
5000
16,7
2500
33,3
5000
-20
-
1MH-H1/2MH-H1/3MH1-H3: SF optics (D:S=300:1)
spot size
mm
0,7
1,0
measurement distance
mm
200
300
1,5
450
2,3
700
3,7
1100
5,3
1600
1MH-H1/2MH-H1/3MH1-H3: CF optics (D:S=300:1)
spot size
mm
0,3
0,4
measurement distance
mm
90
120
0,5
150
0,6
180
0,7
210
0,8
250
8,3
2500
16,7
5000
-Mechanical Installation
3 Mechanical Installation
The CTvideo 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.
CTvideo sensing head (Basic version)
Make sure to keep the optical path clear of any obstacles.
21-
-22
CTvideo sensing head (High temperature version)
-
-Mechanical Installation
23-
Electronic box
For an exact alignment of the head to the
object please activate the integrated video
and/ or crosshair laser sighting.
[►7 Operating, 8 Sighting]
Mounting bracket, adjustable in one axis [ACCTLFB] – standard scope of supply
-24
-
4 Accessories
4.1
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. Make sure to 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.
Air purge collar [ACCTLAP]
Hose connection: 6x8 mm
Thread (fitting): G 1/8 inch
-Accessories
4.2
Mounting Bracket
Mounting bracket, adjustable in two axes [ACCTLAB]
This adjustable mounting bracket allows an adjustment of the sensor in two axis.
25-
-26
4.3
-
Water Cooled Housing
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)
Water cooled housing [ACCTLW]
Hose connection: 6x8 mm
Thread (fitting): G 1/8 inch
The sensing head can be used at ambient temperatures up to 70 °C without cooling. For applications, where
the ambient temperature can reach higher values, the usage of the optional water cooled housing is
recommended (operating temperature up to 175 °C). The sensor should be equipped with the optional high
temperature cables (operating temperature up to 180 °C).
-Accessories
4.4
Rail Mount Adapter for Electronic box
With the rail mount adapter the CTvideo electronics can be mounted easily on a DIN rail (TS35) according
EN50022.
Rail mount adapter [ACCTRAIL]
► All accessories can be ordered according to the referred part numbers in brackets [ ].
27-
-28
-
5 Electrical Installation
5.1
Cable Connections
The CTvideo sensing heads are equipped with connectors in the backplane. Therefore an opening of the
sensing head for assembling or disassembling is not necessary. An USB cable (5 m) is already connected
on the electronics and can be used for linking to a computer.
Basic version
The standard version of the CTvideo has a 12-pin connector which is
integrated in the sensors backplane. The connection to the electronics is
done by the blue sensor cable. Cable lengths of 3 m, 5 m and 10 m are
available.
High temperature version
The high temperature version of the CTvideo has two connectors
(7-pin and 5-pin) which are integrated in the sensor backplane. The
connection sensing head – electronics will be done in this case via:
a 7-core high temperature cable (sensor signals, laser) and
a 4-core high temperature cable (video signal).
Cable lengths of 3 m, 5 m and 10 m are available.
-Electrical Installation
CTvideo Basic version
CTvideo High temperature version
29-
-30
-
Designation
+8..36 VDC
GND
GND
AL2
OUT-TC
OUT-mV/mA
F1-F3
GND
3V SW
GND
ORANGE
BLUE
PURPLE
YELLOW
Power supply
Ground (0 V) of power supply
Ground (0 V) of internal in- and outputs
Alarm 2 (Open collector output)
Analog output thermocouple (J or K)
Analog output object temperature (mV or mA)
Functional inputs
Ground (0 V)
BLACK/ Power supply Laser (+)
GREY/ Ground Laser (–)
Temperature probe head (NTC)
Head ground
Head power
Detector signal
Opened electronic box
with terminal connections
Power supply
Please use a separate, stabilized power supply unit with an output voltage of 8–36 VDC
which can supply 160 mA. The ripple should be max. 200 mV.
Please use shielded cables only for all power and data lines.
The sensor shield has to be grounded.
Please do never connect a supply voltage to the analog outputs as this will destroy the
output!
The CTvideo is not a 2-wire sensor!
-Electrical Installation
31-
Cable Assembling
The cable gland M12x1,5 allows the use of cables with a diameter of 3 to 5 mm.
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. 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. Spread the strands and fix the shield between two of the metal washers. Insert
the cable into the cable gland until the limit stop. Screw the cap tight.
Every single wire may be connected to the according screw clamps according to their colors.
Use shielded cables only. The sensor shield has to be grounded.
-32
5.2
-
Ground Connection
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 please 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.
CTvideo mainboard
-Electrical Installation
5.3
33-
Sensing head 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
block1
block2
block3
block4
block5
For entering the code please 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.
After you have modified the head code a reset is necessary to activate the change.
[►7 Operating]
You will find the calibration code on a label fixed on the head. Please do not remove this label or
make sure the code is noted anywhere.
-34
-
6 Outputs and Inputs
6.1
Analog Output
This output is used for the object temperature. The selection of the output signal can be done via the
programming keys [►7 Operating]. The CompactConnect software allows the programming of output
channel 1 as an alarm output.
Output signal
Range
Voltage
Voltage
Current
Current
Thermocouple
Thermocouple
0 ... 5 V
0 ... 10 V
0 ... 20 mA
4 ... 20 mA
TC J
TC K
Connection pin on
CTvideo board
OUT-mV/mA
OUT-mV/mA
OUT-mV/mA
OUT-mV/mA
OUT-TC
OUT-TC
According to the chosen output signal there are different connection pins on the mainboard
(OUT-mV/mA or OUT-TC).
-Outputs and Inputs
6.2
Digital Interface
The CTvideo sensors are equipped with an USB interface. The
interface board is located beside the LCD display. To uninstall the
board please disconnect both of the M3x5 screws. Please pay
attention to the correct positioning of the pin strip if you install the
board.
6.3
Functional Inputs
The three functional inputs F1 – F3 can be programmed with the CompactConnect software, only.
F1 (digital):
F2 (analog):
F3 (analog):
trigger (a 0 V level on F1 resets the hold functions)
external emissivity adjustment [0–10 V: 0 V ► =0,1; 9 V ► =1; 10 V ► =1,1]
external compensation of ambient temperature/ the range is scalable via software
[0–10 V ► -40–900 °C / preset 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]
35-
-36
6.4
-
Alarms
The CTvideo has the following Alarm
features:
All alarms (alarm 1, alarm 2, output channel 1 and 2 if used as
alarm output) have a fixed hysterese of 2 K.
Output channel 1
To activate the alarm function the 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].
From factory side the alarms are defined as follows:
Alarm 1
Alarm 2
Norm. closed/ Low-Alarm
Norm. open/ High-Alarm
Both of these alarms will have
effect on the LCD color:
BLUE:
RED:
GREEN:
alarm 1 active
alarm 2 active
no alarm active
Extended setup like definition as low or high alarm [via change of normally open/ closed], selection of the
signal source [TObj, THead, TBox] can be done with the software CompactConnect.
-Operating
37-
7 Operating
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 according to the alarm settings [►6.4 Alarms].
7.1
Sensor Setup
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).
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.
Factory Default Setting
To set the CTvideo back to the factory default settings,
please press at first the Down-key and then the Mode-key
and keep both pressed for approx. 3 seconds.
The display will show RESET for confirmation.
-38
-
Display
Mode [Sample]
Adjustment Range
S ON
142.3C
127CH
25CB
142CA
 MV5
Laser Sighting [On]
Object temperature (after signal processing) [142,3 °C]
Head temperature [127 °C]
Box temperature [25 °C]
Current object temperature [142 °C]
Signal output channel 1 [0-5 V]
E0.970
T1.000
A 0.2
P---V---u
0.0
n 500.0
[ 0.00
] 5.00
U °C
| 30.0
|| 100.0
XHEAD
Emissivity [0,970]
Transmissivity [1,000]
Signal output Average [0,2 s]
Signal output Peak hold [inactive]
Signal output Valley hold [inactive]
Lower limit temperature range [0 °C]
Upper limit temperature range [500 °C]
Lower limit signal output [0 V]
Upper limit signal output [5 V]
Temperature unit [°C]
Lower alarm limit [30 °C]
Upper alarm limit [100 °C]
Ambient temperature compensation [head temperature]
M 01
B 9.6
Multidrop adress [1] (only with RS485 interface)
Baud rate in kBaud [9,6]
ON/ OFF
fixed
fixed
fixed
fixed
0-20 = 0–20 mA/  4-20 = 4–20 mA/  MV5 = 0–5 V/
 MV10 = 0-10 V/  TCJ = thermocouple type J/
 TCK = thermocouple type K
0,100 ... 1,100
0,100 ... 1,100
A---- = inactive/ 0,1 … 999,9 s
P---- = inactive/ 0,1 … 999,9 s/ P oo oo oo oo = infinite
V---- = inactive/ 0,1 … 999,9 s/ V oo oo oo oo = infinite
depending on model/ inactive at TCJ- and TCK-output
depending on model/ inactive at TCJ- and TCK-output
according to the range of the selected output signal
according to the range of the selected output signal
°C/ °F
depending on model
depending on model
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
01 … 32
9,6/ 19,2/ 38,4/ 57,6/ 115,2 kBaud
-Operating
39-
S ON
Activating (ON) and Deactivating (OFF) of the Sighting Laser. By pressing Up or Down the
laser can be switched on and off.
 MV5
Selection of the Output signal. By pressing Up or Down the different output signals can be
selected (see table).
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 [►11 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. 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.
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.
If the value is set to 0.0 the display will show --- (function deactivated).
-40
V----
Setup of Valley hold. In this mode the sensor waits for ascending signals. The definition of
the algorithm is according to the peak hold algorithm (inverted).
If the value is set to 0.0 the display will show --- (function deactivated).
Signal graph with P----
▬ TProcess with Peak Hold (Hold time = 1s)
▬ TActual without post processing
-Operating
u
0.0
41-
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.
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 [►6.4 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 [►6.4 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.
-42
If XHEAD is shown the ambient temperature value will be taken from the head-internal
probe.
To return to XHEAD please press Up and Down together.
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.
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.
B 9.6
Setup of the Baud rate for digital data transfer.
-Sighting
43-
8 Sighting
The CTvideo has an integrated video camera which is using the same optical channel than the IR detector.
In addition the sensor has a cross laser aiming which marks the center of the measurement spot at any
distance. The combination of video and laser sighting enables a perfect alignment of the sensor to the
object.
Do not point the laser directly at the eyes of persons or animals! Do not stare into the laser
beam. Avoid indirect exposure via reflective surfaces!
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 will shine (beside temperature display).
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 and also the measurement accuracy can be
affected.
-44
8.1
-
Focusing and Video Sighting
On the back plane of the sensor you will find a rotary button for focusing of the
optics.
To set the focus to the desired measurement distance you have to connect
the sensor with a PC using the USB cable. Please start the CompactConnect
software. You will see the video beside the temperature-time diagram. The
position of the measurement spot is indicated by a circle inside the video
picture. The size of this circle is equivalent to the IR spot size.
By turning the rotary button clockwise you will change the focus in direction far. By turning
counterclockwise you will change the focus in direction close.
After a successful focusing please enter the measurement distance (distance sensor front – object) in the
according field in the software (underneath the video picture).
You will find a detailed description of the video
settings in the software description which you can
call via the menu [?/ Help...].
-Sighting
8.2
Error messages
The display of the sensor can show the following error messages:
1. Digit:
0x
No error
1x
Head temperature probe short circuit to GND
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
45-
-46
-
9 Software CompactConnect
9.1
Installation
Min. system requirements:
Insert the installation CD into the according drive on
your computer. If the autorun option is activated the
installation wizard will start automatically.
Otherwise please start CDsetup.exe from the CDROM. Follow the instructions of the wizard until the
installation is finished.





Windows XP, Vista, 7, 8, 10
USB interface
Hard disc with at least 30 MByte free space
At least 128 MByte RAM
CD-ROM drive
The installation wizard will place a launch icon on the desktop and in the start menu:
[Start]\Programs\CompactConnect.
If you want to uninstall the software from your system please use the uninstall icon in the start menu.
You will find a detailed software manual on the CD.
Main Features:
 Alignment of the sensor
 Graphic display for temperature trends and automatic data logging
and video snapshot generation for analysis and documentation
 Complete sensor setup and remote controlling
 Adjustment of signal processing functions
 Programming of outputs and functional inputs
-Software CompactConnect
9.2
47-
Communication Settings
Serial Interface
Baud rate:
Data bits:
Parity:
Stop bits:
Flow control:
9,6...115,2 kBaud (adjustable on the unit or via software)
8
none
1
off
Protocol
All sensors of the CTvideo 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.
ASCII protocol
To switch to the ASCII protocol please use the following command:
Decimal:
HEX:
Data, Answer:
Result:
131
0x83
byte 1
0 – Binary protocol
1 – ASCII protocol
-48
-
Saving of parameter settings
After power on of the CTvideo sensor the flash mode is active. It means, changed parameter settings will be
saved in the internal Flash-EEPROM and will be kept also after the sensor is switched off.
In case settings should be changed quite often or continuously the flash mode can be switched off by using
the following command:
Decimal:
HEX:
Data, Answer:
Result:
112
0x70
byte 1
0 – Data will not be written into the flash memory
1 – Data will be written into the flash memory
If the flash mode is deactivated, all settings will only be kept as long as the unit is powered. If the unit is
switched off and powered on again all previous settings are lost.
The command 0x71 will poll the current status.
You will find a detailed protocol and command description on the software CD CompactConnect in the
directory: \Commands.
-Basics of Infrared Thermometry
49-
10 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 (►11 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
electronics (amplifier/ linearization/ signal processing)
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.
-50
-
11 Emissivity
11.1 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.
11.2 Determination of unknown Emissivities
► 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 – part
number: ACLSED) onto the measuring object, which covers it completely. Now set the emissivity to 0,95
-Emissivity
51-
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.
11.3 Characteristic Emissivities
In case none of the methods mentioned above help to determine the emissivity you may use the emissivity
tables ►Appendix A – Emissivity Table Metals and Appendix B – Emissivity Table Non Metals. 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)
-52
-
Appendix A – Emissivity Table Metals
Material
Aluminium
Brass
Copper
Spectral response
non oxidized
polished
roughened
oxidized
polished
roughened
oxidized
polished
roughened
oxidized
Chrome
Gold
Haynes
Inconel
Iron
Iron, casted
alloy
electro polished
sandblast
oxidized
non oxidized
rusted
oxidized
forged, blunt
molten
non oxidized
oxidized
typical Emissivity
1,0 µm
0,1-0,2
0,1-0,2
0,2-0,8
0,4
0,35
0,65
0,6
0,05
0,05-0,2
0,2-0,8
0,4
0,3
0,5-0,9
0,2-0,5
0,3-0,4
0,4-0,9
0,35
0,7-0,9
0,9
0,35
0,35
0,9
1,6 µm
0,02-0,2
0,02-0,1
0,2-0,6
0,4
0,01-0,05
0,4
0,6
0,03
0,05-0,2
0,2-0,9
0,4
0,01-0,1
0,6-0,9
0,25
0,3-0,6
0,6-0,9
0,1-0,3
0,6-0,9
0,5-0,9
0,9
0,4-0,6
0,3
0,7-0,9
5,1 µm
0,02-0,2
0,02-0,1
0,1-0,4
0,2-0,4
0,01-0,05
0,3
0,5
0,03
0,05-0,15
0,5-0,8
0,03-0,3
0,01-0,1
0,3-0,8
0,15
0,3-0,6
0,6-0,9
0,05-0,25
0,5-0,8
0,6-0,9
0,9
8-14 µm
0,02-0,1
0,02-0,1
0,1-0,3
0,2-0,4
0,01-0,05
0,3
0,5
0,03
0,05-0,1
0,4-0,8
0,02-0,2
0,01-0,1
0,3-0,8
0,15
0,3-0,6
0,7-0,95
0,05-0,2
0,5-0,7
0,5-0,9
0,9
0,25
0,65-0,95
0,2
0,6-0,95
-Appendix A – Emissivity Table Metals
53-
Material
Spectral response
polished
roughened
oxidized
Magnesium
Mercury
Molybdenum
non oxidized
oxidized
Monel (Ni-Cu)
Nickel
electrolytic
oxidized
Platinum
black
Silver
Steel
polished plate
rustless
heavy plate
cold-rolled
oxidized
Tin
non oxidized
Titanium
polished
oxidized
Wolfram
polished
Zinc
polished
oxidized
Lead
typical Emissivity
1,0 µm
0,35
0,65
0,3-0,8
0,25-0,35
0,5-0,9
0,3
0,2-0,4
0,8-0,9
0,04
0,35
0,35
0,8-0,9
0,8-0,9
0,25
0,5-0,75
0,35-0,4
0,5
0,6
1,6 µm
0,05-0,2
0,6
0,3-0,7
0,05-0,3
0,05-0,15
0,1-0,3
0,4-0,9
0,2-0,6
0,1-0,3
0,4-0,7
0,95
0,02
0,25
0,2-0,9
0,8-0,9
0,8-0,9
0,1-0,3
0,3-0,5
0,6-0,8
0,1-0,3
0,05
0,15
5,1 µm
0,05-0,2
0,4
0,2-0,7
0,03-0,15
0,05-0,15
0,1-0,15
0,3-0,7
0,1-0,5
0,1-0,15
0,3-0,6
0,9
0,02
0,1
0,15-0,8
0,5-0,7
0,8-0,9
0,7-0,9
0,05
0,1-0,3
0,5-0,7
0,05-0,25
0,03
0,1
8-14 µm
0,05-0,1
0,4
0,2-0,6
0,02-0,1
0,05-0,15
0,1
0,2-0,6
0,1-0,14
0,05-0,15
0,2-0,5
0,9
0,02
0,1
0,1-0,8
0,4-0,6
0,7-0,9
0,7-0,9
0,05
0,05-0,2
0,5-0,6
0,03-0,1
0,02
0,1
-54
-
Appendix B – Emissivity Table Non Metals
Material
Spectral response
Asbestos
Asphalt
Basalt
Carbon
Carborundum
Ceramic
Concrete
Glass
Grit
Gypsum
Ice
Limestone
Paint
Paper
Plastic >50 µm
Rubber
Sand
Snow
Soil
Textiles
Water
Wood
typical Emissivity
1,0 µm
0,9
non oxidized
graphite
0,4
0,65
plate
melt
2,2 µm
0,8
0,8-0,9
0,8-0,9
0,95
0,8-0,95
0,9
0,2
0,4-0,9
5,1 µm
0,9
0,95
0,7
0,8-0,9
0,7-0,9
0,9
0,8-0,95
0,9
0,98
0,9
0,95
0,4-0,97
0,4-0,98
non alkaline
any color
non transparent
0,95
0,95
0,9
0,9
0,95
natural
0,9-0,95
8-14 µm
0,95
0,95
0,7
0,8-0,9
0,7-0,8
0,9
0,95
0,95
0,85
0,95
0,8-0,95
0,98
0,98
0,9-0,95
0,95
0,95
0,95
0,9
0,9
0,9-0,98
0,95
0,93
0,9-0,95
-Appendix C – Smart Averaging
55-
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
-56
Appendix D – Declaration of Conformity
-
optris CTvideo – E2017-08-A