optris CSmicro LT15 User manual

optris®CSmicro LT15/ LT02/ 2WLT/ 2W2M/ 2Whs
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Infrared Sensor
Operators manual


CE-Conformity Optris GmbH
Ferdinand-Buisson-Str. 14
D – 13127 Berlin
GERMANY
Tel.: +49-30-500 197-0
Fax: +49-30-500 197-10
Internet: www.optris.com
The product complies with the following standards:
EMC: EN 61326-1:2006
(Basic requirements)
EN 61326-2-3:2006
Safety Regulations: EN 61010-1:2001
Laser safety: EN 60825-1:2007
The product accomplishes the requirements of the EMC Directive 2004/108/EG and
of the Low Voltage Directive 2006/95/EG.
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. References to other chapters are marked as [►...].
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. 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.
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Content
Page Page
Description 3DigitalMode 25
ScopeofSupply 3AlarmOutput 27
Maintenance 3 Software CompactConnect 28
Cautions 4Installation 28
Model Overview 4 Communication Settings 29
Factory Default Settings 5 Digital Command Set [LT15/ LT02] 30
Technical Data 6 Digital Command Set [2WLT/ 2W2M/ 2Whs] 31
General Specifications 6 Basics of Infrared Thermometry 32
Electrical Specifications 7 Emissivity 33
Connection Diagrams 8 Definition 33
Measurement Specifications [LT models] 9 Determination of unknown Emissivities 33
Measurement Specifications [2M model] 10 Characteristic Emissivities 34
Optical Charts 11 Appendix A – Emissivity Table Metals 35
CF Lens and Protective Window 15 Appendix B – Emissivity Table Non Metals 37
Mechanical Installation 17 Appendix C – Smart Averaging 38
Mounting Accessories [LT15/ LT02/ 2WLT/ 2W2M] 18
Mounting Accessories [2Whs] 19
Air Purge Collars [LT15/ LT02/ 2WLT/ 2W2M] 20
Air Purge Collar [2Whs] 21
Further Accessories 22
Electrical Installation 23
AnalogMode 23
Maximum Loop Impedance [2WLT/ 2W2M/ 2Whs] 24

Description
The sensors of the optris CSmicro series are noncontact infrared temperature sensors.
They calculate the surface temperature based on the emitted infrared energy of objects [►Basics of Infrared
Thermometry].
The sensor housing of the optris CSmicro is made of stainless steel (IP65/ NEMA-4 rating) – the sensor
electronics is integrated inside the connection cable.
Scope of Supply
CSmicro incl. connection cable
Mounting nut
Operators manual
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.
PLEASE NOTE: Never use cleaning
compounds which contain solvents
(neither for the lens nor for the housing).
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Cautions
Avoid abrupt changes of the ambient temperature.
In case of problems or questions which may arise when you use the sensor, please contact our service
department.
The sensors CSmicro are sensitive optical systems. Please use only the thread for mechanical
installation.
Avoid mechanical violence on the head – this may destroy the system (expiry of warranty).
Model Overview
The sensors of the CSmicro series are available in the following versions:
Model Measurement range spectral Output
response
CSmicro LT15/ LT02 -20 to 350 °C 8-14 μm Voltage output 0-5 V/ 0-10 V
CSmicro 2WLT -30 to 900 °C 8-14 μm Two-wire sensor (4-20 mA)
CSmicro 2W2M 385 to 1600 °C 1,6 μm Two-wire sensor (4-20 mA)
CSmicro 2Whs -20 to 150 °C 8-14 μm Two-wire sensor (4-20 mA)/ Detection
of smallest temperature differences
(0,025K)
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Factory Default Settings
The units have the following presetting at time of delivery:
LT15 LT02 2WLT 2W2M 2Whs e
Temperature range: 0...350 °C 0...350 °C 0...500 °C 385...1600 °C -20...150 °C
Output: 0...3,5 V 0...3,5 V 4...20 mA 4...20 mA 4...20 mA
Emissivity: 0,950 0,950 0,950 1,000 0,950
Transmission: 1,000 1,000 1,000 1,000 1,000
Average time: 0,09 s 0,09 s 0,09 s 0,09 s 0,2 s
Smart averaging: active active active active active
Smart Averaging means a dynamic average adaptation at high signal edges [activation/ deactivation via
software onl
y]
. ►A
pp
endix C
Read the manual carefully before the initial start-up. The producer reserves the right to change the herein
described specifications in case of technical advance of the product.
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Technical Data
General Specifications
Environmental rating IP65 (NEMA-4)
Ambient temperature Sensing head: -20...125 °C [2W2M]
-20...120 °C [LT15/ LT02/ 2WLT]
-20...75°C[2Whs]
Electronics (inside cable): -20...75 °C
Storage temperature -40...85 °C
Relative humidity 10...95 %, non condensing
Material Stainless steel
Dimensions 28 mm x 14 mm (head) [LT15/ LT02/ 2WLT/ 2W2M]
55 mm x 29,5 mm (head incl. massive housing) [2Whs]
70 mm x 12 mm (electronic) [LT15/ LT02]
45 mm x 12 mm (electronic) [2WLT/ 2W2M/ 2Whs]
Weight 42 g [LT15/ LT02/ 2WLT/ 2W2M]
200g[2Whs]
Cable length 1 m (50 cm between head and electronics) [LT15/ LT02/ 2WLT/ 2W2M]
4 m (50 cm between head and electronics) [2Whs]
Cable diameter 2,8 mm (head – electronics)
4,3 mm (electronics – end of cable)
Vibration IEC 68-2-6: 3G, 11 – 200 Hz, any axis
Shock IEC 68-2-27: 50G, 11 ms, any axis
Software (optional) CompactConnect

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Electrical Specifications
LT15/ LT02 2WLT/ 2W2M/ 2Whs e
Output aonly alternatively selectable e
Analog 0-5 V1) or 0-10 V2)/ scalable 4-20 mA/ scalable
Serial digital3) uni- (burst mode) or bidirectional uni- (burst mode) or bidirectional
Alarm output voltage adjustable; N/O or N/C -
Additional features Programmable open collector output Programmable open collector output
0-30 VDC/ 50 mA
4) 0-30 VDC/ 500 mA
Output impedances min. 10 kΩload impedance max. 1000 Ωloop impedance
Input programmable functional input:
-externalemissivityadjustment
[0V►=0,1 │5 V ►=1,1]
- ambient temperature compensation
[0V►-20 °C │5 V ►350 °C]
-trigger(resetof hold functions)
[5Vatgn]
Current draw 9 mA 4-20 mA
Power supply 5...30 VDC 5...30 VDC
1) 0...4,6 V at supply voltage 5 VDC; also valid for alarm output
2) only at supply voltage ≥11 V
3) inverted RS232, TTL, 9,6 kBaud
4) 500 mA if the mV output is not used

Connection Diagrams
white Power supply
yellow Analog output/ TxD (5 V)/ Alarm output
green Analog input/ RxD (5 V)/ Open collector output
brown Ground ()
black Shield
white Current loop (+)
yellow TxD (5 V)
green RxD (5 V)/ Open collector output
brown Current loop (-)/ Ground ()
black Shield
You will find a detailed description of the different sensor connections in chapter ►Electrical Installation.
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Measurement Specifications [LT models]
LT15/ LT02 2WLT 2Whs e
Temperature range IR -20...350 °C -30...900 °C -20...150 °C
(scalable via software)
Spectral range 8...14 μm 8...14 μm 8...14 μm
Optical resolution 15:1/ 2:1 15:1 15:1
CF-lens (optional) 0,8 mm@ 10 mm/ 0,8 mm@ 10 mm 0,8 mm@ 10 mm
2,5 mm@ 23 mm
Accuracy1) ±1,5 °C or ±1,5 % 2) ±1,5 °C or ±1,0 % 2) ±1 °C or ±1 % 3)
Repeatability1) ±0,75 °C or ±0,75 % 2) ±0,75 °C or ±0,75 % 2) ±0,3 °C or ±0,3 % 3)
Temperature resolution 0,2 °C 0,1 °C 0,025 K
3) 4)
Response time 30 ms (90 % signal) 30 ms (90 % signal) 150 ms (90 % signal)
Warm-up time 10 min 10 min 10 min
Emissivity/ Gain 0,100...1,100 (adjustable via software)
Transmissivity 0,100...1,000 (adjustable via software)
Interface (optional) USB programming interface
Signal processing Average, Peak hold, Valley hold (adjustable via software)
1) at ambient temperature 235 °C, whichever is greater; Epsilon = 1; Response time 1 s
2) at object temperatures > 0 °C
3) at object temperatures > 20 °C
4) at time constants > 0,2 s

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Measurement Specifications [2M model]
2W2M e
Temperature range IR 385...1600 °C
(scalable via software)
Spectral range 1,6 μm
Optical resolution 75:1
Accuracy1) ±(0,3 % of reading + 2 °C) 2)
Repeatability1) ±(0,1 % of reading + 1 °C) 2)
Temperature resolution 0,1 °C
Response time 10 ms (95 % signal)
Emissivity/ Gain 0,100...1,100 (adjustable via software)
Transmissivity 0,100...1,000 (adjustable via software)
Interface (optional) USB programming interface
Signal processing Average, Peak hold, Valley hold (adjustable via software)
1) at ambient temperature 235 °C; Epsilon = 1; Response time = 1 s
2) at object temperatures > 450 °C

Optical Charts
The following optical charts show the diameter of the measuring spot in dependence on the distance between
measuring object and sensing head. The spot size refers to 90 % of the radiation energy.
The distance is always measured from the front edge of the sensor housing/ CF-lens holder/ air purge.
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.
LT15/ 2WLT/ 2Whs D:S = 15:1
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LT15/ 2WLT/ 2Whs with CF lens (0,8 mm@ 10 mm)
LT02 D:S = 2:1
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LT02 with CF lens (2,5 mm@ 23 mm)
2W2M SF D:S = 75:1
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2W2M CF D:S = 75:1/ D:S Far field = 14:1
If the CF lens (ACCTCFHT or ACCTCFHTE) is used in connection with 2W2M units (SF or CF optics) the focus
is shifted to a distance of 11 mm.
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CF Lens and Protective Window
If the CF lens is used, the
transmission has to be set to 0,78
[LT15/ 2WLT/ 2Whs].
The optional CF lens allows the measurement of very small objects.
The minimum spot size depends on the used sensing head. The
distance is always measured from the front edge of the CF lens holder
or laminar air purge collar. The installation on the sensing head will be
done by turning the CF lens until end stop. To combine it with the 2Whs model please use the version with
external thread M12x1.
Versions Overview:
ACCTCF CF lens for installation on sensing head [LT15/ 2WLT/ 2Whs]
ACCTCFHT CF lens for installation on sensing head [2W2M]
ACCTCFE CF lens with external thread for installation in massive housing [LT15/ 2WLT/ 2Whs]
ACCTCFHTE CF lens with external thread for installation in massive housing [2W2M]
For protection of the sensing head optics a protective window is available. The mechanical dimensions are
equal to the CF lens. It is available in the following versions:
ACCTPW Protective window for installation on sensing head [LT15/ 2WLT/ 2Whs]
ACCTPWHT Protective window for installation on sensing head [2W2M]
ACCTPWE Protective window with external thread for installation in massive housing [LT15/ 2WLT/ 2Whs]
ACCTPWHTE Protective window with external thread for installation in massive housing [2W2M]
If the protective window is used, the
transmission has to be set to 0,83 [LT15/
2WLT/ 2Whs] or 0,93 [2W2M].
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CF lens: Laminar air purge with integratedt CF lens with external thread:
ACCTCF/ ACCTCFHT CF lens: ACCTCFE/ ACCTCFHTE
Protective window: ACCTAPLCF/ ACCTAPLCFHT Protective window with external thread:
ACCTPW/ ACCTPWHT ACCTPWE/ ACCTPWHTE
To change the transmission value the optional USB-Kit (including CompactConnect software) is
necessary.
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Mechanical Installation
The CSmicro is equipped with a metric M12x1 thread and can be installed either directly via the sensor thread
or with the help of the hex nut (standard) to the mounting bracket available. The CSmicro 2Whs will be
delivered with the massive housing and can be installed via the M18x1-thread.
The sensors CSmicro are sensitive optical systems. Please use only the thread for mechanical installation. Avoid
mechanical violence on the head – this ma
y
destro
y
the s
y
stem
(
ex
p
ir
y
of warrant
y)
.
Sensing head [LT15/ LT02/ 2WLT/ 2W2M] Sensing head [2Whs]
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Mounting Accessories [LT15/ LT02/ 2WLT/ 2W2M]
Mounting bracket, adjustable in Mounting bolt with M12x1 thread, Mounting fork with M12x1
one axis [ACCTFB] adjustable in one axis [ACCTMB] thread, adjustable in 2 axes
[ACCTMG]
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The Mounting fork can be
combined with the
Mounting bracket
[ACCTFB] using the M12x1
thread.
Mounting bracket, adjustable in
two axes [ACCTAB]
This manual suits for next models
4
Table of contents
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