Optris OPTCSMALT15CF0505, OPTCSMVLT15SF0505, CATCSMALT15SF0505K, CATCSMVLT15SF0505K, OPTCSMALT15SF0505 User manual

Operator’s Manual

optris

®

CSmicro

Infrared-thermometer

LT/ LTH/ LTHS/ 2M/ 3M

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Table of Contents 3-

Table of Contents

Table of Contents ............................................................................................................................................. 3

1 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

2 Technical Data ........................................................................................................................................ 15

2.1 General Specifications ................................................................................................................... 15

2.2 Electrical Specifications .................................................................................................................. 17

2.3 Pin Configuration ............................................................................................................................ 19

2.4 Measurement Specifications .......................................................................................................... 20

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2.5 Optical Charts ................................................................................................................................. 23

2.6 CF Lens and Protective Window .................................................................................................... 33

3 LED Functions ........................................................................................................................................ 35

3.1 Automatic Aiming Support .............................................................................................................. 35

3.2 Self Diagnostic ............................................................................................................................... 36

3.3 Temperature Code Indication ......................................................................................................... 37

4 Mechanical Installation .......................................................................................................................... 38

4.1 Mounting Accessories [LT/ 2M/ 3M] ............................................................................................... 39

4.2 Mounting Accessories [LT15HS] .................................................................................................... 40

4.3 Air Purge Collars [LT/ 2M/ 3M] ....................................................................................................... 41

4.4 Air Purge Collar [LT15HS] .............................................................................................................. 42

4.5 Further Accessories ....................................................................................................................... 43

5 Electrical Installation ............................................................................................................................. 46

5.1 Analog Mode .................................................................................................................................. 46

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Table of Contents 5-

5.2 Maximum Loop Impedance [CSMA models] .................................................................................. 49

5.3 Digital Mode ................................................................................................................................... 50

5.4 Alarm Output .................................................................................................................................. 52

6 IRmobile app ........................................................................................................................................... 53

7 Software CompactConnect ................................................................................................................... 55

7.1 Installation ...................................................................................................................................... 55

7.2 Communication Settings ................................................................................................................ 57

8 Basics of Infrared Thermometry........................................................................................................... 58

9 Emissivity ............................................................................................................................................... 59

9.1 Definition......................................................................................................................................... 59

9.2 Determination of unknown Emissivity ............................................................................................ 59

9.3 Characteristic Emissivity ................................................................................................................ 60

Appendix A – Emissivity Table Metals ......................................................................................................... 61

Appendix B – Emissivity Table Non Metals ................................................................................................. 63

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Appendix C – Smart Averaging ..................................................................................................................... 64

Appendix D – Direct Connection to an RS232 Interface ............................................................................. 65

Appendix E – Declarations of Conformity.................................................................................................... 66

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General Information 7-

1 General Information

1.1 Description

Thank you for choosing the optris® CSmicro infrared thermometer.
The sensors of the optris CSmicro series are noncontact infrared thermometers.
They calculate the surface temperature based on the emitted infrared energy of objects
[►8 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.

The CSmicro 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.

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► 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 ne glect the
user has to pay for the repair. In that case you may ask for a cost estimate beforehand.

1.3 Scope of Supply

▪ CSmicro incl. connection cable
▪ Mounting nut
▪ Isolated mounting bracket (only included for LTH devices)
▪ Operators manual

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General Information 9-

1.4 Maintenance

Lens cleaning: Blow off loose particles using clean compressed air. The lens surface can be cleaned with a

soft, humid tissue (moistened with water) or a lens cleaner (e.g. Purosol or B+W Lens Cleaner).

Never use cleaning compounds which contain solvents (neither for the lens nor for the housing).

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1.5 Model Overview

The sensors of the CSmicro series (CSMV and CSMA) are available in the following versions:

Series

Model

Measurement
range

Spectral
response

Output

Optics

Specialty

LT

LT02

-50 to 1030 °C

8-14 µm

0/5-10 V

(CSMV)

or

4-20 mA

(CSMA)

2:1 LT15

15:1
LT15H

T

amb

max. 180 °C

LT22H

22:1

LT HS

-20 to 150 °C

15:1

0,025 K resolution

2M
2ML

250 to 800 °C

1,6 µm
40:1 2MH

385 to 1600 °C

75:1

3M
3ML

50 to 350 °C

2,3 µm
22:1

3MH

100 to 600 °C

33:1

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General Information 11-

1.6 Factory Default Settings

The units have the following presetting at time of delivery:

CSmicro

LT02

LT15

LT15HS

LT15H

LT22H

Temperature range:

0...350 °C

-20…150 °C

0...500 °C

Output:

0...3,5 V or 4…20 mA

0…5 V or 4…20 mA

Emissivity:

0,950

Transmission:

1,000

Average time:

10 ms

Smart Averaging:

active

Smart Averaging hysteresis:

2 °C

Ambient temperature source:

internal (head)

Status-LED function:

Self diagnostic

Input (IN/ OUT/ green):

Inactive (mV version) or Communication input (mA version)

Output (OUT/ yellow):

mV output (mV version) or Communication output (mA version)

Vcc adjust:

inactive

Signal processing:

Hold mode: off

Calibration:

Gain 1,000/ Offset 0,0

Failsafe:

inactive

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CSmicro

2ML

2MH

3ML

3MH

Temperature range:

250...800 °C

385...1600 °C

50…350 °C

100...600 °C

Output:

0…10 V or 4...20 mA

Emissivity:

0,950

Transmission:

1,000

Average time:

10 ms

Smart Averaging:

active

Smart Averaging hysteresis:

2 °C

Ambient temperature source:

internal (head)

Status-LED function:

Self diagnostic

Input (IN/ OUT/ green):

Inactive (mV version) or Communication input (mA version)

Output (OUT/ yellow):

mV output (mV version) or Communication output (mA version)

Vcc adjust:

inactive

Signal processing:

Hold mode: off

Calibration:

Gain 1,000/ Offset 0,0

Failsafe:

inactive

Smart Averaging means a dynamic average adaptation at high signal edges.
[Activation via software only]. ►Appendix C – Smart Averaging

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General Information 13-

For a usage of the CSmicro LT (mV version) for online maintenance applications (in electrical cabinets e.g.)
the following recommend settings are already included in the factory default setting (but not active):

OUT

At 3-state output the following settings are default:

Pre-alarm difference:

2 °C

No alarm level:

8 V Pre-alarm level:

5 V Alarm level:

0 V Service voltage:

10 V

IN/ OUT:

At Alarm output (open collector) the following settings are default:

Mode:

normally closed

Temp code output:

activated (for values above alarm level)

Range settings:

0 °C = 0 %/ 100 °C = 100 %

Vcc adjust:

If activated the following settings are default:

Output voltage range:

0 - 10 V

Difference mode:

activated

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Vcc adjust:

Alarm level Alarm value (IN/ OUT pin) Vcc

1 40 °C 11 V
2 45 °C 12 V
3 50 °C 13 V
4 55 °C 14 V
5 60 °C 15 V
6 65 °C 16 V
7 70 °C 17 V
8 75 °C 18 V
9 80 °C 19 V

10 85 °C 20 V

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Technical Data 15-

2 Technical Data

2.1 General Specifications

Environmental rating

IP65 (NEMA-4)

Ambient temperature

Sensing head: see: Measurement Specifications
Electronics (inside cable): -20...80 °C [CSMV]

-20...75 °C 1) [CSMA]

Storage temperature

-40…85 °C

Relative humidity

10...95 %, non condensing

Material

Stainless steel

Dimensions

28 mm x 14 mm (head) [LT/ 2M/ 3M]
32 mm x 14 mm (head) [3M CF1]
55 mm x 29,5 mm (head incl. massive housing) [LT15HS]
35 mm x 12 mm (electronics)

Weight

42 g [LT/ 2M/ 3M]
200 g [LT15HS]

Cable length

head – electronics: 0,5 m (standard), 3 m, 6 m [LT/ 2M/ 3M 2)]
after electronics: 0,5 m (standard), 3 m, [LT/ 2M/ 3M]
head – electronics: 0,5 m [LT15HS]
after electronics: 0,5 m (standard), 3 m, 6 m [LT15HS]

Cable diameter

2,8 mm (head – electronics)
4,3 mm (electronics – end of cable)

Vibration

IEC 60068-2-6 / -64

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Shock

IEC 60068-2-27 (25G and 50G

Pressure resistance (head)

8 bar

Software

optional

1)

for Vcc (supply voltage) 5-12 VDC/ at Vcc > 12 VDC the max. ambient temperature of the electronics is 65 °C

2)

6 m cable length not available for 3M version

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Technical Data 17-

2.2 Electrical Specifications

Used Pin

Function

CSMV

CSMA

OUT

IN/ OUT

x

Analog

0-5 V 1) or 0-10 V 2)/ scalable

4-20 mA/ scalable (current loop between Power
and GND pin)

x

Alarm

output voltage adjustable; N/O or N/C

output current adjustable; N/O or N/C (current
loop between Power and GND pin)

x

Alarm

3-state alarm output (three voltage level
for no alarm, pre-alarm, alarm)

-

x

Alarm

programmable open collector output
(NPN type)

[0-30 V DC/ 50 mA] 4)

programmable open collector (NPN type)
[0-30 V DC/ 500 mA]

x

Temp.
Code

Temp. Code Output (open collector
(NPN type))

[0-30 V DC/ 50 mA] 4)

Temp. Code Output (open collector (NPN type))
[0-30 V DC/ 500 mA]

x

Input

programmable functions:

• external emissivity adjustment

• ambient temperature compensation

• triggered signal output and peak hold

function

5)

• Reset of hold function 6)

programmable functions:

• triggered signal output and peak hold
function

5)

• Reset of hold function 7)

x

x

Serial
digital 3)

uni- (burst mode) or bidirectional

uni- (burst mode) or bidirectional
Output impedances

min. 10 kΩ load impedance

max. 1 kΩ loop impedance

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Current draw

9 mA

4-20 mA

Power supply

5...30 VDC

5...30 VDC

Status-LED

green LED with programmable functions:

• alarm indication (threshold independent from alarm outputs)

• automatic aiming support

• self diagnostics

• temperature code indication

Vcc adjust mode

10 adjustable emissivity and alarm values by variation of supply voltage/ Service mode for analog output
[LT only]

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

5)

High level: > 0,8 V/ Low level: < 0,8 V

6)

Reset of peak or valley hold by High level at IN/ OUT pin (Low: open or GND / High: >2,4 V...11 V)

7)

Reset of peak or valley hold by Low level at IN/ OUT pin (Low: GND / High: open or >1 V...11 V)

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Technical Data 19-

2.3 Pin Configuration

white

Power

Power supply

yellow

OUT

Analog output/ TxD/ Alarm output

green

IN/ OUT

Analog input/ RxD/ Open collector output

brown

GND

Ground (⊥)

black

Shield

Shield
white

Power

Current loop (+)/ Alarm output

yellow

OUT

TxD

green

IN/ OUT

Trigger input/ RxD/ Open collector output

brown

GND

Current loop (-)/ Ground (⊥)

black

Shield

Shield

You will find a detailed description of the different sensor connections in chapter ►5 Electrical Installation.

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2.4 Measurement Specifications

LT02/ LT15

LT15H/LT22H

LT15HS

Temperature range IR (scalable via software)

-50...1030 °C

-20...150 °C

Ambient temperature (sensing head)

-20...120 °C

-20...180 °C

--20...75 °C

Spectral range

8...14 µm

Optical resolution

2:1/ 15:1

15:1/ 22:1

15:1

CF-lens (optional)

2,5 mm@ 23 mm/
0,8 mm@ 10 mm

0,8 mm@ 10 mm/
0,6 mm@ 10 mm

0,8 mm@ 10 mm
Accuracy

1),2)

±1,0 °C or ±1,0 %

Repeatability

1),2)

±0,5 °C or ±0,5 %

±0,3 °C or ±0,3 %

Temperature coefficient 3)

±0,05 K/ K or ±0,05 %/ K (whichever is greater)

NETD

50 mK 4)

25 mK

5)

Response time

14 ms (90 % signal)

150 ms (90 % signal)

Warm-up time

10 min

Emissivity/ Gain

0,100...1,100 (adjustable via software)

Transmissivity

0,100...1,100 (adjustable via software)

Interface (optional)

USB (programming interface)

Signal processing

Average, Peak hold, Valley hold (adjustable via software)

1)

at ambient temperature 235 °C, whichever is greater; Epsilon = 1; Response time 1 s

2)

at object temperatures > 23 °C

3)

for ambient temperatures <18 °C and >28 °C

4)

T

Object

= 200 °C, response time 200 ms

5)

T

Object

= 20 °C, response time 150 ms

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Technical Data 21-

2ML

2MH

Temperature range IR (scalable via software)

250...800 °C

385...1600 °C

Ambient temperature (sensing head)

-20...125 °C

Spectral range

1,6 µm

Optical resolution

40:1

75:1

CF-lens (optional)

0,4 mm@ 11 mm

0,2 mm@ 11 mm

Accuracy

1),2)

±(0,3 % of reading + 2 °C)

Repeatability

1),2)

±(0,1 % of reading + 1 °C)

Temperature coefficient 3)

±0,05 K/ K or ±0,05 %/ K (whichever is greater)

NETD

40 mK 4)

50 mK 5)

Response time (90 % signal)

8 ms (mV version), 20 ms (mA version)

Warm-up time

-

Emissivity/ Gain

0,100...1,100 (adjustable via software)

Transmissivity

0,100...1,100 (adjustable via software)

Interface (optional)

USB (programming interface)

Signal processing

Average, Peak hold, Valley hold (adjustable via software)

1)

at ambient temperature 235 °C; Epsilon = 1; Response time = 1 s

2)

at object temperatures > 300 °C

3)

for ambient temperatures <18 °C and >28 °C

4)

T

Object

= 500 °C, response time 8 ms

5)

T

Object

= 800 °C, response time 8 ms

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3ML

3MH

Temperature range IR (scalable via software) 1)

50...350 °C

100...600 °C

Ambient temperature (sensing head)

-20...85 °C

Spectral range

2,3 µm

Optical resolution

22:1

33:1

CF optics (built-in)

5,0 mm@ 110 mm

3,4 mm@ 110 mm

CF1 optics (built-in)

1,5 mm@ 30 mm

1,0 mm@ 30 mm

Accuracy 2)

±(0,3 % of reading + 2 °C)

Repeatability 2)

±(0,1 % of reading + 1 °C)

Temperature coefficient 3)

±0,05 K/ K or ±0,05 %/ K (whichever is greater)

NETD

30 mK 4)

50 mK 5)

Response time (90 % signal)

8 ms (mV version), 20 ms (mA version)

Warm-up time

-

Emissivity/ Gain

0,100...1,100 (adjustable via software)

Transmissivity

0,100...1,100 (adjustable via software)

Interface (optional)

USB (programming interface)

Signal processing

Average, Peak hold, Valley hold (adjustable via software)

1)

T

Object

> T

Head

+25 °C

2)

at ambient temperature 235 °C, whichever is greater; Epsilon = 1; Response time 1 s

3)

for ambient temperatures <18 °C and >28 °C

4)

T

Object

= 150 °C, response time 200 ms

5)

T

Object

= 300 °C, response time 200 ms

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Technical Data 23-

2.5 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.

As an alternative to the optical diagrams, the spot size calculator can also be used on the
Optris website or via the Optris calculator app. The app can be downloaded for free from the
Google Play store (see QR code).

D = Distance from front of the sensing
head to the object

S = Spot size

The D:S ratio is valid for the focus point.

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.

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LT15/ LT15H/ LT15HS D:S = 15:1

LT15CF/ LT15HCF D:S = 15:1/ D:S Far field = 5:1

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Technical Data 25-

LT15/ LT15H/ LT15HS with CF lens (0,8 mm@ 10 mm)/ D:S Far field = 1,4:1

LT22H D:S = 22:1

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LT22CF/ LT22HCF D:S = 22:1/ D:S Far field = 6:1

LT22H with CF lens (0,6 mm@ 10 mm)/ D:S Far field = 1,5:1

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Technical Data 27-

LT02 D:S = 2:1

LT02 with CF lens (2,5 mm@ 23 mm)/ D:S Far field = 2,5:1

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2ML SF D:S = 40:1

2ML CF D:S = 40:1/ D:S Far field = 12:1

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Technical Data 29-

2MH SF D:S = 75:1

2MH CF D:S = 75:1/ D:S Far field = 14:1

If the CF lens (ACCTCFHT or ACCTCFHTE) is used in connection with 2M units (SF or CF
optics) the focus is shifted to a distance of 11 mm.

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3ML SF D:S = 22:1

3ML CF D:S = 22:1/ D:S Far field = 9:1

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Technical Data 31-

3ML CF1 D:S = 22:1/ D:S Far field = 3,5:1

3MH SF D:S = 33:1

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3MH CF D:S = 33:1/ D:S Far field = 11:1

3MH CF1 D:S = 30:1/ D:S Far field = 4:1

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Technical Data 33-

Typical Transmission values* if the
CF lens is used (average values):

LT 0,78
2M 0,87
3M 0,92 *Deviations possible

2.6 CF Lens and Protective Window

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 LT15HS model please use the version with external
thread M12x1.

Versions Overview:

ACCTCF CF lens for installation on sensing head [LT]
ACCTCFHT CF lens for installation on sensing head [2M, 3M]
ACCTCFE CF lens with external thread for installation in massive housing [LT]
ACCTCFHTE CF lens with external thread for installation in massive housing [2M, 3M]

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 [LT]
ACCTPWHT Protective window for installation on sensing head [2M, 3M]
ACCTPWE Protective window with external thread for installation
in massive housing [LT]
ACCTPWHTE Protective window with external thread for installation
in massive housing [2M, 3M]

Typical Transmission values* if the
protective window is used (average
values):

LT 0,83
2M/ 3M 0,93 *Deviations possible

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CF lens:
ACCTCF/ ACCTCFHT
Protective window:
ACCTPW/ ACCTPWHT

Laminar air purge with integrated CF
lens:
ACCTAPLCF/ ACCTAPLCFHT

CF lens with external thread:
ACCTCFE/ ACCTCFHTE
Protective window with external thread:
ACCTPWE/ ACCTPWHTE

To change the transmission value the IR app connector (including software) is necessary.

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LED Functions 35-

3 LED Functions

The green LED can be programmed for the following functions. For the programming the USB adapter
cable incl. software (option) is necessary. The factory default setting for the LED is self diagnostic.

LED Alarm

LED lights up if the object temperature exceeds or deceeds an alarm threshold

Automatic aiming support

Sighting feature for an accurate aiming of the CS to hot or cold objects

Self-diagnostic

LED is indicating different states of the sensor

Temperature Code indication

Indication of the object temperature via the LED

Off

LED deactivated

3.1 Automatic Aiming Support

The automatic aiming support helps to adjust the unit to an object which has a temperature different to the
background. If this function is activated via software the sensor is looking for the highest object temperature;
means the threshold value for activating the LED will be automatically tuned.
This works also if the sensor is aimed at a new object (with probably colder temperature). After expiration of
a certain reset time (default setting: 10 s) the sensor will adjust the threshold level for activation of the LED
new.

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3.2 Self Diagnostic

With this function the current status of the sensor will be indicated by different flash modes of the LED.

Sensor overheated:

The internal temperature probes have detected an invalid high internal
temperature of the CSmicro.

Out of measuring range:

The object temperature is out of measuring range.

Not stable:

The internal temperature probes have detected an unequally internal
temperature of the CSmicro.

Alarm fault:

Current through the switching transistor of the open-collector output is too
high.

If activated, the LED will show one out of five possible states of
the sensor:

Status LED mode
Normal intermittent off - - - -

Sensor overheated fast flash - - - - - - - - - - - - ­Out of measuring range double flash -- -- -- -- -- -- -­Not stable intermittent on ––– ––– ––– –––
Alarm fault always on –––––––––––––––

At a supply voltage (Vcc) ≥ 12 V it
takes about 5 minutes until the sensor
works in a stable mode.
Therefore, after switching on the unit,
the LED will show a not stable state
for up to 5 minutes.

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LED Functions 37-

3.3 Temperature Code Indication

With this function the current measured object temperature will be indicated as percentage value by long and
short flashing of the LED.
At a range setting of 0-100 °C → 0-100 % the LED flashing indicates the temperature in °C.

Examples

87 °C 8-times long flashing indicates 87
and afterwards 7-times short flashing indicates 87

31 °C 3-times long flashing indicates 31
and afterwards 1-time short flashing indicates 31

8 °C 10-times long flashing indicates 08
and afterwards 8-times short flashing indicates 08

20 °C 2-times long flashing indicates 20

and afterwards 10-times short flashing indicates 20

Long flashing → first digit: xx
Short flashing → second digit: xx
10-times long flashing → first digit=0: 0x
10-times short flashing → second digit=0: x0

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4 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 LT15HS 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 may destroy the system (expiry of warranty).

Sensing head [LT/ 2M/ 3M]

1)

Sensing head [LTHS15]

1)

On the 3MxCF1 model the total length of the sensing head is 32 mm instead of 28 mm.

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Mechanical Installation 39-

4.1 Mounting Accessories [LT/ 2M/ 3M]

Mounting bracket, adjustable in
one axis [ACCTFB]

Mounting bolt with M12x1 thread,
adjustable in one axis [ACCTMB]

Mounting fork with M12x1
thread, adjustable in 2 axes
[ACCTMG]

Mounting bracket, adjustable in two axes [ACCTAB]

The Mounting fork can be
combined with the

Mounting bracket
[ACCTFB] using the M12x1

thread.

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4.2 Mounting Accessories [LT15HS]

Mounting bracket, adjustable in one axis for LT15HS [ACCTFBMH]

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Mechanical Installation 41-

4.3 Air Purge Collars [LT/ 2M/ 3M]

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.

Standard air purge collar; fits
to the mounting bracket;
hose connection: 3x5 mm
[ACCSAP]/ for heads with a
D:S ratio ≥ 10:1

Laminar air purge collar – the sideward air
outlet prevents a cooling down of the object in
short distances; hose connection: 3x5 mm
[ACCTAPL]

The needed amount of air (approx. 2...10 l/ min.) depends on the application
and the installation conditions on-site.

A combination of the
Laminar air purge collar
with the bottom section of
the Mounting fork allows an
adjustment in two axes.
[ACCTAPL+ACCTMG]

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4.4 Air Purge Collar [LT15HS]

Air purge collar for LT15HS head [ACCTAPMH]

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Mechanical Installation 43-

4.5 Further Accessories

Right angle mirror enables measurement with
90° angle [ACCTRAM]

For optics with a D:S ≥ 10:1

IR app connector: USB programming adaptor incl. terminal
block [ACCSMIAC]

The mirror has a reflexion of 96% * in combination with LT model heads.
If the mirror is used this value has to be multiplied by the emissivity value of the
measurement object.

Example: LT15 and object with emissivity = 0,85
0,85 x 0,96 = 0,816
Thus the emissivity in the CSmicro has to be set to the resulting value of 0,816.

*Deviations possible

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Tilt Assembly

With this mounting accessory a fine adjustment of
the CSmicro with an off-axis angle +/- 6,5° is
possible.

Tilt assembly [ACCTTAS]

Isolated mounting bracket

Isolated mounting bracket [ACCSMLTHFB]

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Mechanical Installation 45-

Laser-Sighting tool [D08ACCTLST]

battery powered (2x Alcaline AA), for alignment of
CSmicro sensing heads. The laser head has the same
mechanical dimensions as the CSmicro sensing head.

► All accessories can be ordered using the according part numbers in brackets [ ].

WARNING: 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!

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Use a separate, stabilized power supply
with an output voltage in the range
5-30 V DC. The residual ripple of the power
supply should be max. 200 mV.
For all power and data lines use shielded
cables only.

5 Electrical Installation

5.1 Analog Mode

CSmicro as analog device (mV output on OUT pin)

CSmicro as analog device (mA two-wire-output)

The maximum loop impedance is 1000 Ω.

The output impedance must be ≥ 10 kΩ.

IMPORTANT:
The shield [black] on the CSmicro
(exception: CSM LTxxH) is not
connected to GND [brown].
It is necessary to connect the shield to
ground or GND (whichever works best)!

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Electrical Installation 47-

CSmicro LTxxH as analog device (mA two-wire-output) – current measurement in GND- (Loop-) line

On the models LT15H and LT22H (sensing heads for ambient temperatures up to 180 °C) and on the special
versions for 250 °C ambient temperature the GND and Shield is connected inside the electronics.

Special note for current measurement in GND- (Loop-) line:
In this case the sensing head must be installed isolated from ground. An isolated mounting bracket is
included (for LTH). A connection of the GND or Shield wire to earth is also not allowed.

For a current measurement in the Power- (Loop+) line the following drawing.
The Shield should be connected to ground or GND.

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The maximum loop impedance is 1000 Ω.

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Electrical Installation 49-

5.2 Maximum Loop Impedance [CSMA models]

The maximum impedance of the current loop depends on the supply voltage level:

0

100

200

300

400

500

600

700

800

900

1000

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Supply voltage (V)

Loop resistance (Ohm)

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5.3 Digital Mode

For a digital communication the optional IR app connector is required.
Please connect each wire of the USB adapter cable with the same
colored wire of the sensor cable by using the terminal block. Press with a
screw driver as shown in the picture to loose a contact.

The sensor is offering two ways of digital communication:

▪ bidirectional communication (sending and receiving data)
▪ unidirectional communication (burst mode – the sensor is sending

data only)

Digital mode [CSMV]

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Electrical Installation 51-

Analog + Digital mode combined [CSMA]

The two-wire models are able to work in the digital mode and simultaneously as analog device (4-20 mA).
In this case the sensor will be powered by the USB interface (5 V).

Direct connection to an RS232 interface on the computer

For a bidirectional RS232 connection of the sensor the following interface circuit can be used: MAX3381E
(manufacturer: Maxim) ►Appendix D – Direct Connection to an RS232 Interface:

Model

CSMV

CSMA

UART voltage (RxD)

3,3 V

3,3 V

UART voltage (TxD)

3,3 V

2,5 V

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5.4 Alarm Output

Open collector output [CSMV]

The open collector output (NPN type) is an additional alarm output on the CSmicro and can control an
external relay e.g. In addition the analog output can be used simultaneously.

Open collector output [CSMA]

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IRmobile app 53-

6 IRmobile app

The CSmicro 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.:
ACCSMIAC).

With IRmobile you are able to monitor and analyze 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 CSmicro 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.

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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:

➢ Optris pyrometers: Compact series, high performance series and video

thermometers

➢ Optris IR cameras: PI and Xi series
➢ For android devices running 5.0 or higher with a micro USB or USB-C port supporting USB-OTG (On

The Go)

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Software CompactConnect 55-

7 Software CompactConnect

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.

• A detailed description is provided in the software manual on the downloaded software
package.

• The software only supports USB cables ordered directly from Optris.

Minimum system requirements:

▪ Windows 7, 8, 10
▪ USB interface
▪ Hard disc with at least 30 MByte free space
▪ At least 128 MByte RAM

7.1 Installation

The software can be downloaded under
Unzip and open the program and start the
CDsetup.exe. Follow the instructions of the
wizard until the installation is finished.

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CompactConnect

Main Features:

▪ 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

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Software CompactConnect 57-

7.2 Communication Settings

A command list is included in the software package and can be found under documentation.

Serial Interface

Baud rate:

9600 baud

Data bits:

8

Parity:

none

Stop bits:

1

Flow control:

off

Protocol

All sensors of the CSmicro series are using a binary protocol. To get a fast communication the protocol has
no additional overhead with CR, LR or ACK bytes.
To power the sensor the control signal „DTR“ has to be set.

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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
▪ 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.

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Emissivity 59-

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.

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 – part

number: ACLSED) onto the measuring object, which covers it completely. Now set the emissivity to 0,95

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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.

9.3 Characteristic Emissivity

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)

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Appendix A – Emissivity Table Metals 61-

Appendix A – Emissivity Table Metals

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

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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

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Appendix B – Emissivity Table Non Metals 63-

Appendix B – Emissivity Table Non Metals

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

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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

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Appendix D – Direct Connection to an RS232 Interface 65-

Appendix D – Direct Connection to an RS232 Interface

CSM connections:

TxD (yellow) to T1IN

RxD (green) to R1OUT

GND (brown) to GND

PC connections:

connect T1OUT with RxD (PC)

connect R1IN with TxD (PC)

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Appendix E – Declarations of Conformity

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