turck CMTH Series User manual

Your Global Automation Partner
Instructions for Use
CMTH…
Condition Monitoring
Sensor

Contents
Hans Turck GmbH & Co. KG | T [phone] | [email protected] | www.turck.com V02.00 | 2023/01 | 2
Contents
1 About these instructions ...................................................................................................................4
1.1 Target groups ...................................................................................................................4
1.2 Explanation of symbols used.........................................................................................4
1.3 Other documents.............................................................................................................4
1.4 Feedback about these instructions ..............................................................................4
2 Notes on the product .........................................................................................................................5
2.1 Product identification .....................................................................................................5
2.2 Scope of delivery..............................................................................................................5
2.3 Turck service .....................................................................................................................5
3 For your safety.....................................................................................................................................6
3.1 Intended use .....................................................................................................................6
3.2 Obvious misuse ................................................................................................................6
3.3 General safety instructions ............................................................................................6
3.4 Notes on UL approval......................................................................................................7
4 Product description ............................................................................................................................8
4.1 Device overview...............................................................................................................8
4.1.1 Indication elements.........................................................................................................................8
4.2 Properties and features ..................................................................................................8
4.3 Operating principle .........................................................................................................8
4.4 Functions and operating modes...................................................................................9
4.4.1 IO-Link mode......................................................................................................................................9
4.4.2 SIO mode (standard I/O mode) ...................................................................................................9
4.4.3 Window function..............................................................................................................................9
4.4.4 Counter for operating hours and switching cycles..............................................................9
4.4.5 Limit counter......................................................................................................................................9
4.4.6 Dew point calculation.................................................................................................................. 10
4.4.7 Temperature and humidity histograms................................................................................ 10
5 Installing ............................................................................................................................................ 11
6 Connection ........................................................................................................................................ 12
6.1 Wiring diagrams............................................................................................................ 12
7 Commissioning................................................................................................................................. 13
7.1 Initiating SIO mode....................................................................................................... 13
8 Operation........................................................................................................................................... 14
8.1 LEDs ................................................................................................................................. 14
9 Setting and parameterization ....................................................................................................... 15
9.1 Setting via IO-Link ........................................................................................................ 15
9.2 Settable functions and properties............................................................................. 15
10 Troubleshooting............................................................................................................................... 16
11 Maintenance ..................................................................................................................................... 17

Contents
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12 Repair ................................................................................................................................................. 17
12.1 Returning devices ......................................................................................................... 17
13 Disposal.............................................................................................................................................. 17
14 Technical data................................................................................................................................... 18
15 Turck subsidiaries — contact information.................................................................................. 20

About these instructions
Feedback about these instructions
Hans Turck GmbH & Co. KG | T [phone] | [email protected] | www.turck.com V02.00 | 2023/01 | 4
1 About these instructions
These instructions for use describe the structure, functions and the use of the product and will
help you to operate the product as intended. Read these instructions carefully before using the
product. This is to avoid possible damage to persons, property or the device. Retain the instruc-
tions for future use during the service life of the product. If the product is passed on, pass on
these instructions as well.
1.1 Target groups
These instructions are aimed at qualified personal and must be carefully read by anyone
mounting, commissioning, operating, maintaining, dismantling or disposing of the device.
1.2 Explanation of symbols used
The following symbols are used in these instructions:
DANGER
DANGER indicates a dangerous situation with high risk of death or severe injury if
not avoided.
WARNING
WARNING indicates a dangerous situation with medium risk of death or severe in-
jury if not avoided.
CAUTION
CAUTION indicates a dangerous situation of medium risk which may result in minor
or moderate injury if not avoided.
NOTICE
NOTICE indicates a situation which may lead to property damage if not avoided.
NOTE
NOTE indicates tips, recommendations and useful information on specific actions
and facts. The notes simplify your work and help you to avoid additional work.
uCALL TO ACTION
This symbol denotes actions that the user must carry out.
aRESULTS OF ACTION
This symbol denotes relevant results of actions.
1.3 Other documents
Besides this document, the following material can be found on the Internet at www.turck.com:
nData sheet
nCommissioning manual IO-Link devices
nIO-Link parameters
nDeclarations of Conformity (current version)
nApprovals
1.4 Feedback about these instructions
We make every effort to ensure that these instructions are as informative and as clear as pos-
sible. If you have any suggestions for improving the design or if some information is missing in
the document, please send your suggestions to [email protected].

Notes on the product
Turck service
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2 Notes on the product
2.1 Product identification
These instructions apply to the following condition monitoring sensors:
nCMTH-M12-IOLX2-H1141
2.2 Scope of delivery
The scope of delivery includes:
nCondition monitoring sensor
n2 fixing nuts
n2 lock washers (DIN 6797)
2.3 Turck service
Turck supports you with your projects, from initial analysis to the commissioning of your applic-
ation. The Turck product database under www.turck.com contains software tools for program-
ming, configuration or commissioning, data sheets and CAD files in numerous export formats.
The contact details of Turck subsidiaries worldwide can be found on p. [}20].

For your safety
General safety instructions
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3 For your safety
The product is designed according to state-of-the-art technology. However, residual risks still
exist. Observe the following warnings and safety notices to prevent damage to persons and
property. Turck accepts no liability for damage caused by failure to observe these warning and
safety notices.
3.1 Intended use
The condition monitoring sensors of the CMTH series monitor temperature and air humidity.
The devices are designed for an operating range of 0…+60°C, a relative air humidity of
20…80% and an environmental pressure of 1013hPa.
The process values are output by the device via IO-Link.
The devices are designed for condition monitoring or for predictive maintenance tasks.
The devices may only be used as described in these instructions. Any other use is not in accord-
ance with the intended use. Turck accepts no liability for any resulting damage.
3.2 Obvious misuse
nThe devices are not safety components and must not be used for personal or property
protection.
nThe values supplied by the sensor may be invalid if water, ice or condensation are present on
the measuring element.
nAvoid use in aggressive media in order to prevent a drift in the humidity value. This includes
the following media:
– Toluene: C7H8
– Acetone: (CH3)2CO
– Ethanol: C2H6O
– Methanol: CH3OH
– Isopropyl alcohol: C3H8O
– Diisopropyl ether: C6H14O
– Ethylene glycol: (CH2OH)2
– Ethyl acetate: C4H8O2
– Acetic acid n-butyl ester: C6H12O2
– Methyl ethyl ketone C4H8O
– Hydrochloric acid HCI
– Sulfuric acid: H2SO4
– Nitric acid HNO3
– Ammonia NH3
– Hydrogen peroxide: H2O2
– Ozone: O3
– Formaldehyde: CH2O
– Other ketones
3.3 General safety instructions
nThe device may only be assembled, installed, operated, parameterized and maintained by
professionally-trained personnel.
nThe device may only be used in accordance with applicable national and international
regulations, standards and laws.
nOnly operate the device within the limits stated in the technical specifications.

For your safety
Notes on UL approval
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3.4 Notes on UL approval
nIf the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
nThe equipment is intended to be powered by Limited Energy Source or Class 2 supply or
Limited Energy Circuit.

Product description
Operating principle
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4 Product description
The condition monitoring sensors of the CMTH series are contained in a metal housing with an
M12 male thread. The front cap consists of a chrome plated brass. The sensor can be mounted
in any direction.
The device has two outputs which can be set independently of each other. The temperature
value is provided at output 1 and the humidity value at output 2. Temperature and air humidity
are measured and output simultaneously.
4.1 Device overview
mm [Inch]
17/4
Ø 10.7 [0.42]
35.3 [1.39]
57 [2.24]
Ø 6.7
[0.27]
M12 × 1 M12 × 1
LED
Fig.1: Dimensions
4.1.1 Indication elements
The device includes a 2-color LED status indicator.
4.2 Properties and features
nSensor for condition monitoring
nAccurate temperature and air humidity measurement
nSensor-2-cloud compatible
n18…30 VDC
nMale connector, M12×1, 4-pin
nConfiguration and communication via IO-Link V1.1
nContinuous process values for temperature and humidity
nLimit values of preset values monitored in SIO mode
nTemperature monitoring with adjustable limits
nHumidity monitoring with adjustable limits
nOperating hours meter for further analysis options
4.3 Operating principle
Condition monitoring sensors are designed for use in plant sections where the ambient condi-
tions significantly affect machine availability or process quality. The monitoring of temperature
or air humidity makes it possible to detect deviations early on and introduce counter measures.
The process value is transferred to the controller via IO-Link for monitoring. It is also possible to
use switching bits to signal limit value violations for specific applications.

Product description
Functions and operating modes
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4.4 Functions and operating modes
The sensors monitor temperature and air humidity in condition monitoring applications. The
device outputs a continuous process value for both variables via IO-Link. Two limit value pairs
can also be defined (window function) for each detected variable. The overshooting or under-
shooting of the defined limit value is indicated via a bit in the IO-Link process data. The device
supports Smart Sensor Profile 4.1.2.
In operation without IO-Link communication, output 1 supplies the temperature value and
output 2 the humidity value. A switch window can be set for each of these two outputs. The
switching output is set if one of the limit values was reached.
4.4.1 IO-Link mode
In order to operate in IO-Link mode, the device must be connected to an IO-Link master. When
the port is configured in IO-Link mode, bidirectional IO-Link communication takes place
between the IO-Link master and the device. To make this possible, the device is integrated via
an IO-Link master at the control level. First the communication parameters are exchanged, and
then the cyclic data exchange of process data (objects) starts.
4.4.2 SIO mode (standard I/O mode)
In standard I/O mode no IO-Link communication takes place between the device and the
master. The device only transfers the switching state of its binary outputs and can also be run
via a fieldbus device or controller with digital PNP or NPN inputs. An IO-Link master is not
required for operation.
The device parameters can be set via IO-Link and then operated at the digital inputs with the
appropriate settings in SIO mode. Not all functions and properties of the device can be used in
SIO mode.
4.4.3 Window function
The window function is used to teach a switching range in which the switching output takes on
a defined switching state. The switching range is defined by an upper and lower limit value.
The limit values for output 1 (temperature) and output 2 (air humidity) can be set independ-
ently of each other.
4.4.4 Counter for operating hours and switching cycles
The device is provided with an integrated counter for operating hours and switching cycles.
The actual, total operating hours or the switching cycles can be read via the acyclic IO-Link
parameter data. The values are stored at the following times:
n1 minute after the device is started
n5 minutes after the device is started
n15 minutes after the device is started
n30 minutes after the device is started
nEvery 60 minutes
nAfter writing parameters to the non-volatile memory
4.4.5 Limit counter
The device is equipped with a limit counter. The counter value is automatically increased when
the limit values set for the specific application are reached. The limit counter can be read out
via the IO-Link interface. It is also possible to assign an alarm value to the limit values. When the
alarm value is reached, the device issues a notification about an IO-Link event.
The limit counter can be reset via IO-Link.

Product description
Functions and operating modes
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4.4.6 Dew point calculation
The device calculates the dew point using the measured temperature and the relative humid-
ity. The dew point can be read out via IO-Link.
The dew point is the temperature at which water vapor contained in the air begins to con-
dense. The relative humidity at the dew point is 100 %. The air is saturated with water vapor.
4.4.7 Temperature and humidity histograms
The device creates histograms for temperature and humidity. The value ranges for the process
values are divided into intervals of 10K (temperature) or 10% (humidity). The device records
the time in which the process value lies within each of the relevant sections. Each section has a
separate IO-Link index.
The values are stored at the following times:
n1 minute after the device is started
n5 minutes after the device is started
n15 minutes after the device is started
n30 minutes after the device is started
nEvery 60 minutes
nAfter writing parameters to the non-volatile memory

Installing
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5 Installing
The sensors can be installed in any position. The position of the sensor can have an effect on
the accuracy values. The accuracy values in the technical data apply to horizontal mounting.
The maximum tightening torque of the housing nuts is 7Nm.
Clean the mounting surface and the surroundings area.
Install the sensor if required with a mounting aid (fixing bracket or fixing clip).
Install the sensor or mounting aid at the intended position.
Fig.2: Example of correct mounting Fig.3: Example of incorrect mounting
Install the sensor so that the front cap protrudes from the surrounding area (see example
for correct mounting).
Choose the mounting location so that the measuring element is not surrounded by
liquid.
Operating environments with air humidity > 80%: Mount the sensor with the front cap
pointing down in order to prevent residual condensation on the measuring element.
For precise accuracy values (see Technical data): Do not cover the front cap. Ensure suffi-
cient air convection at the measuring element.

Connection
Wiring diagrams
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6 Connection
Connect the female connector of the connection cable to the male connector of the
sensor.
Connect the open end of the connection cable to the power supply and/or processing
units.
6.1 Wiring diagrams
3
2
4
1
1
4
2
3
+
–
out 2: switch
out 1: switch/IO-Link
Fig.4: Pin assignment Fig.5: Wiring diagram

Commissioning
Initiating SIO mode
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7 Commissioning
The device is operational automatically after max. 2 s once the cables are connected and the
power supply is switched on. IO-Link communication starts automatically if the device is con-
nected to an IO-Link master. For this the IO-Link master sends a wake-up request to the device.
7.1 Initiating SIO mode
Connect the device to a standard I/O port.
aThe device is operational after a readiness delay of max. 2 s.

Operation
LEDs
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8 Operation
NOTE
The values supplied by the sensor may be invalid if water, ice or condensation are
present on the measuring element.
8.1 LEDs
LED indication Meaning
Green flashing (1 s on, 0.125 s off) IO-Link communication
Green Device is operational
SIO mode: no switching output active
Yellow SIO mode: Output 1 (temperature) active
Yellow flashing (1 Hz) SIO mode: Output 2 (humidity) active
Yellow flashing (4Hz) SIO mode: Output 1 and 2 active
Green/yellow flashing SIO mode: Short circuit at one output

Setting
Settable functions and properties
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9 Setting and parameterization
9.1 Setting via IO-Link
The device can be parameterized within the technical specifications (see data sheet) via the
IO-Link communication interface – both offline, e.g. with the configuration tool as well as also
online via the controller. An overview of the different functions and properties that can be set
and used for IO-Link mode can be found in the chapter “Setting” and in the IO-Link parameter
manual of the device. Detailed instructions on the parameterization of devices via the IO-Link
interface are provided in the IO-Link commissioning manual.
All the parameters can changed in IO-Link mode via the controller during commissioning as
well as during operation.
9.2 Settable functions and properties
The following functions and properties can be set and used via the IO-Link interface:
nSwitching limits for the window function
nOutput configuration
nOn/off switching of outputs

Troubleshooting
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10 Troubleshooting
If the device does not function as expected, first check whether ambient interference is present.
If there is no ambient interference present, check the connections of the device for faults.
If there are no faults, there is a device malfunction. In this case, decommission the device and
replace it with a new device of the same type.
Problem Possible cause Remedy
Air humidity and temperature:
No measurement data
Measuring element
surrounded by liquid
The liquid evaporates when it
no longer fully surrounds the
measuring element. This evap-
oration will affect the meas-
ured values for temperature
and relative air humidity.
Evaporation can take up to
40 minutes at room temperat-
ure. Once dried, the device
outputs process values again
that are not affected by the
liquid.
Deviating measured values Insufficient air convection Do not cover the front cap.
Ensure sufficient air convec-
tion at the measuring element.
Residual condensation on
measuring element and front
cap
Air humidity too high Mount the sensor with the
front cap pointing down in
order to prevent residual
condensation on the measur-
ing element.

Maintenance
Returning devices
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11 Maintenance
The device is maintenance-free. Clean with a dry cloth if required.
12 Repair
The device must not be repaired by the user. The device must be decommissioned if it is faulty.
Observe our return acceptance conditions when returning the device to Turck.
12.1 Returning devices
Returns to Turck can only be accepted if the device has been equipped with a Decontamination
declaration enclosed. The decontamination declaration can be downloaded from
https://www.turck.de/en/retoure-service-6079.php
and must be completely filled in, and affixed securely and weather-proof to the outside of the
packaging.
13 Disposal
The devices must be disposed of properly and do not belong in the domestic waste.

Technical data
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14 Technical data
Technical data
Type CMTH-M12-IOLX2-H1141
ID 100016580
General data
Function Temperature/air humidity sensor
Temperature measuring range -40…+100 °C (-40…+212 °F)
Accuracy ± 0.8 °C under laboratory conditions
Resolution 0.1 K
Air humidity measuring range 0…100 % rF
Accuracy ± 5 % rF (10…90 % rF) under laboratory
conditions
± 7 % rF (0…10 % rF/90…100 % rF) under
laboratory conditions
Resolution 0.1 % rF
Electrical data
Operating voltage 18…30 VDC
Ripple < 10 % Uss
DC rated operational current ≤ 150 mA
No-load current ≤ 10 mA
Short-circuit protection Yes/cyclic
Reverse polarity protection Yes
Output function Programmable, IO-Link, SIO mode
Output 2 Switching output
Max. load current Io50 mA
Response time of the air humidity value 6s (τ63 %) under laboratory conditions
Setting option IO-Link
IO-Link
IO-Link specification V1.1
IO-Link port type Class A
Communication mode COM 3 (230.4 kBaud)
Process data width 64-bit
Measured value information 24-bit
Switching point information 4-bit
Frame type 2.2
Minimum cycle time 10 ms
Function Pin 4 IO-Link, SIO
Function Pin 2 SIO
Maximum cable length 20 m
Profile support Smart Sensor Profile

Technical data
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Technical data
Mechanical data
Design Cylindrical/threaded, M12
Dimensions Ø 12 × 57 mm
Housing material Metal, CuZn, chrome-plated
Electrical connection Male connector, M12 × 1
Ambient temperature -40…+100 °C
Storage temperature -40…+100 °C
Protection type IP67
Operating voltage indication LED, green
Tests and approvals
MTTF 610 years
Vibration resistance IEC 60060-2-6: (10…150 Hz) 20 g
Shock testing IEC 60068-2-27: 50 g (6 ms)
EMC EN 61326-1
Approvals CE, UL

Turck branches – Contact data
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15 Turck subsidiaries — contact information
Germany Hans Turck GmbH & Co. KG
Witzlebenstraße 7, 45472 Mülheim an der Ruhr
www.turck.de
Australia Turck Australia Pty Ltd
Building 4, 19-25 Duerdin Street, Notting Hill, 3168 Victoria
www.turck.com.au
Austria Turck GmbH
Graumanngasse 7/A5-1, A-1150 Wien
www.turck.at
Belgium TURCK MULTIPROX
Lion d'Orweg 12, B-9300 Aalst
www.multiprox.be
Brazil Turck do Brasil Automação Ltda.
Rua Anjo Custódio Nr. 42, Jardim Anália Franco, CEP 03358-040 São Paulo
www.turck.com.br
Canada Turck Canada Inc.
140 Duffield Drive, CDN-Markham, Ontario L6G 1B5
www.turck.ca
China Turck (Tianjin) Sensor Co. Ltd.
18,4th Xinghuazhi Road, Xiqing Economic Development Area, 300381
Tianjin
www.turck.com.cn
Czech Republic TURCK s.r.o.
Na Brne 2065, CZ-500 06 Hradec Králové
www.turck.cz
France TURCK BANNER S.A.S.
11 rue de Courtalin Bat C, Magny Le Hongre, F-77703 MARNE LA VALLEE
Cedex 4
www.turckbanner.fr
Great Britain TURCK BANNER LIMITED
Blenheim House, Hurricane Way, GB-SS11 8YT Wickford, Essex
www.turckbanner.co.uk
Hungary TURCK Hungary kft.
Árpád fejedelem útja 26-28., Óbuda Gate, 2. em., H-1023 Budapest
www.turck.hu
India TURCK India Automation Pvt. Ltd.
401-403 Aurum Avenue, Survey. No 109 /4, Near Cummins Complex,
Baner-Balewadi Link Rd., 411045 Pune - Maharashtra
www.turck.co.in
Italy TURCK BANNER S.R.L.
Via San Domenico 5, IT-20008 Bareggio (MI)
www.turckbanner.it