SICK DUSTHUNTER SP100 Ex-3K User manual

MMM
I
MMMOPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
DUSTHUNTER SP100 Ex-3K
Scattered Light Dust Measuring Device

28020216/1JQX/V3-1/2023-05| SICKOPERATING INSTRUCTIONS |DUSTHUNTERSP100 Ex-3K
Subject to change without notice
Described product
DUSTHUNTER SP100 Ex-3K
Version for potentially explosive atmospheres:
Zone 2 (gas / device category 3G) and Zone 22 (dust / device 3D)
Manufacturer
SICK Engineering GmbH
Bergener Ring 27 · D-01458 Ottendorf-Okrilla · Germany
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Legal information
This document is protected by copyright. Any rights derived from the copyright shall be
reserved for SICK Engineering GmbH. Reproduction of this document or parts of this
document is only permissible within the limits of the legal determination of Copyright
Law. Any modification, shortening or translation of this document is prohibited without
the express written permission of SICK Engineering GmbH.
The trademarks stated in this document are the property of their respective owner.
© SICK Engineering GmbH. All rights reserved.
Original document
This document is an original document of SICK Engineering GmbH.

Contents
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Subject to change without notice
1 About this document................................................................................. 9
1.1 Function of this document..............................................................................9
1.2 Scope of application .......................................................................................9
1.3 Target groups ..................................................................................................9
1.4 Further information .........................................................................................9
1.5 Symbols and document conventions ...........................................................10
1.5.1 Warning symbols...........................................................................10
1.5.2 Warning levels and signal words..................................................10
1.5.3 Information symbols .....................................................................11
1.6 Data integrity.................................................................................................11
2 For your safety..........................................................................................12
2.1 Basic safety information ...............................................................................12
2.2 Warning information on the device ..............................................................15
2.2.1 Information on the sender/receiver unit .....................................15
2.2.2 Information on the MCUDH Ex-3K control unit............................16
2.3 Intended use .................................................................................................17
2.4 Responsibility of user....................................................................................18
3 Product description .................................................................................20
3.1 Product identification....................................................................................20
3.2 Product characteristics .................................................................................21
3.3 Layout and function ......................................................................................21
3.3.1 Functional principle ......................................................................22
3.3.2 Protection concept........................................................................23
3.3.3 DUSTHUNTER SP100 Ex-3K sender/receiver unit ......................24
3.3.4 MCUDH Ex-3K control unit ...........................................................26
3.3.5 Conventional MCU control unit ....................................................28
3.3.6 Flange with tube ...........................................................................30
3.3.7 Purge gas supply...........................................................................30
3.3.8 Connecting cable and plug protection bracket ...........................31
3.3.9 Weather protection hood..............................................................31
3.3.10 Function check..............................................................................32
3.4 Explosion protection in accordance with ATEX ............................................34
3.4.1 Operation in potentially explosive atmosphere ...........................34
3.5 Application illustration DUSTHUNTER SP100 Ex-3K ...................................35
3.6 Interfaces ......................................................................................................36
3.6.1 Standard interfaces of the MCUDH Ex-3K control unit ...............36
3.6.2 Standard interfaces of the MCU control unit...............................37
3.6.3 SOPAS ET user interface ..............................................................37
Contents
Contents

Contents
48020216/1JQX/V3-1/2023-05 | SICKO P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-3K
Subject to change without notice
4 Project planning....................................................................................... 38
4.1 Device configuration..................................................................................... 38
4.1.1 Selecting the sender/receiver unit.............................................. 38
4.1.2 Selecting the flange with tube ..................................................... 39
4.1.3 Selecting the control unit............................................................. 40
4.2 Installation location ...................................................................................... 41
4.2.1 Project planning for measuring channel ..................................... 41
4.2.2 Space requirements for system components ............................. 42
4.2.3 Purge gas supply .......................................................................... 44
4.2.4 Project checklist ........................................................................... 46
5 Transport and storage............................................................................. 47
5.1 Transport....................................................................................................... 47
5.2 Storage.......................................................................................................... 47
6 Mounting ................................................................................................... 48
6.1 Mounting information................................................................................... 48
6.1.1 Proper mounting........................................................................... 48
6.2 Preparing the measuring point .................................................................... 48
6.3 Scope of delivery .......................................................................................... 48
6.4 Installation sequence ................................................................................... 48
6.4.1 Fitting the flange with tube .......................................................... 49
6.4.2 Fitting the MCUDH Ex-3K control unit ......................................... 50
6.4.3 Fitting the optional Remote Display 100 .................................... 50
6.4.4 High-temperature version ............................................................ 51
6.4.5 Fitting the weather protection hood ........................................... 52
7 Electrical installation............................................................................... 53
7.1 Electrical installation safety information ..................................................... 53
7.2 Connection overview .................................................................................... 53
7.2.1 Connection plan .......................................................................... 54
7.3 Information on connecting cables ............................................................... 55
7.4 Connecting the sender/receiver unit........................................................... 56
7.5 Connecting the control unit.......................................................................... 56
7.5.1 MCUDH Ex-3K control unit components...................................... 56
7.5.2 MCU control unit components ..................................................... 57
7.5.3 Remote Display 100 components ............................................... 57
7.5.4 Work to be done ........................................................................... 58
7.5.5 Processor boards connections of control units .......................... 59
7.5.6 Connecting cable to control unit.................................................. 60
7.6 Installing the purge gas supply .................................................................... 60
7.7 Connecting Remote Display 100 ................................................................. 60
7.7.1 Connecting to the MCUDH Ex-3K control unit............................. 60
7.8 MCHDH communication options.................................................................. 61

Contents
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8 Commissioning ........................................................................................64
8.1 Safety information on commissioning..........................................................64
8.2 Requirements for commissioning ................................................................64
8.3 Inserting and switching on............................................................................65
8.3.1 Adapting the sender/receiver unit to the duct geometry............65
8.3.2 Fitting and connecting the sender/receiver unit.........................65
8.4 Recognizing the safe operating state...........................................................66
9 Configuring................................................................................................67
9.1 Prerequisites .................................................................................................67
9.2 SOPAS ET.......................................................................................................67
9.2.1 Install SOPAS ET ...........................................................................67
9.2.2 Password for SOPAS ET ................................................................67
9.2.3 Changing the password for SOPAS ET menus.............................67
9.3 Connecting to the MCUDH Ex-3K control unit..............................................68
9.3.1 Connection via RS485 Service interface to USB.........................68
9.3.2 Connection MCUDH Ex-3K via RS485 Ethernet ..........................68
9.3.3 Connecting a separate Ethernet Interface module.....................68
9.3.4 Configuring the RS485 Modbus ASCII/RTU Interface module ...69
9.4 Connecting to the MCU control unit .............................................................70
9.4.1 Connection to the MCU via Ethernet............................................70
9.4.2 Configuring the Interface module of the MCU control unit.........70
9.4.3 Configuring the MCU control unit Ethernet module ....................71
9.5 System configuration ....................................................................................71
9.5.1 Application parameters ................................................................71
9.5.2 Assigning the control unit to the sender/receiver unit ...............72
9.5.3 Factory settings.............................................................................73
9.5.4 Setting the function check ...........................................................73
9.5.5 Setting the analog outputs parameters.......................................74
9.5.6 Setting the analog inputs parameters .........................................76
9.5.7 Setting the response time ............................................................77
9.5.8 Gravimetric comparison measurement / calibration..................77
9.5.9 Changing display settings.............................................................79
9.6 Finding the DUSTHUNTER COM port ............................................................81
10 Operation ..................................................................................................82
10.1 Operating concept.........................................................................................82
10.2 User groups ...................................................................................................82
10.2.1 Changing the password for user groups......................................82
10.3 MCUDH Ex-3K displays and operating elements.........................................82
10.4 MCUDH Ex-3K control unit buttons ..............................................................83
10.5 MCU control unit displays and operating elements.....................................83

Contents
68020216/1JQX/V3-1/2023-05 | SICKO P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-3K
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11 Menus........................................................................................................ 84
11.1 MCU and MCUDH Ex-3K control units menu structure ............................... 84
11.1.1 Configuration (Menu) ................................................................... 84
11.1.2 Warning and error messages (Diagnosis) ................................... 85
11.2 Configuring on the control unit display........................................................ 86
11.2.1 Configuring analog outputs and inputs of the control unit......... 86
11.2.2 Assigning the control unit to the sender/receiver unit............... 86
11.2.3 Entering the regression coefficients............................................ 86
12 Maintenance............................................................................................. 87
12.1 Safety information ...................................................................................... 88
12.2 Data backup.................................................................................................. 89
12.2.1 Data backup in SOPAS ET............................................................ 89
12.3 Maintenance plan......................................................................................... 90
12.4 Consumables and spare parts ..................................................................... 90
12.5 Maintenance on the sender/receiver unit................................................... 90
12.5.1 Cleaning the optics of the sender/receiver unit ......................... 91
12.5.2 Checking the contamination value.............................................. 92
12.5.3 Non-return valve........................................................................... 93
12.5.4 Test equipment for linearity test ................................................. 93
12.5.5 Power supply without control unit ............................................... 93
12.6 Maintenance work on the sender/receiver unit.......................................... 94
12.6.1 Checking laser alignment ............................................................ 95
12.6.2 Replacing the protection tube O-ring........................................... 96
12.6.3 Replacing the seal in the cleaning opening ................................ 96
12.6.4 Replacing the sinter filter............................................................. 97
12.6.5 Replacing the flange seal ............................................................ 97
12.6.6 Replacing the potential equalization screw ................................ 98
12.6.7 Replacing the protection tube ..................................................... 98
12.6.8 Replacing the hood ...................................................................... 99
12.6.9 Replacing the copper seal of the non-return valve..................... 99
12.6.10 Exchanging the non-return valve ...............................................100
12.7 Maintenance tasks for MCUDH Ex-3K control unit ...................................101
12.7.1 Replacing the button cell in the control unit.............................101
12.7.2 Replacing the MCUDH Ex-3K power supply unit .......................102
12.7.3 Replacing the RS485 Interface module....................................103
12.8 MCU control unit maintenance work .........................................................104
12.8.1 Replacing the button cell in the control unit.............................104
12.8.2 Replacing the Interface module ................................................104
13 Troubleshooting .....................................................................................105
13.1 Safety information ....................................................................................105
13.2 Monitoring and diagnostic system.............................................................106
13.3 Status display LED and display ..................................................................106

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13.4 Sender/receiver unit malfunctions ........................................................... 107
13.4.1 Malfunctions .............................................................................. 107
13.4.2 Warning and malfunction messages ........................................ 107
13.5 Control unit malfunctions .......................................................................... 109
13.5.1 Malfunctions .............................................................................. 109
13.5.2 Warning and malfunction messages ........................................ 109
13.6 Sender/receiver unit troubleshooting measures ..................................... 111
13.6.1 Setting the laser alignment ....................................................... 111
13.6.2 Checking the laser beam for free passage............................... 112
13.7 MCUDH Ex-3K control unit troubleshooting measures ............................ 113
13.7.1 Replacing the fuse..................................................................... 113
13.8 MCU control unit troubleshooting measures ............................................ 114
13.8.1 Replacing the fuse..................................................................... 114
13.9 Sending in devices ..................................................................................... 114
14 Decommissioning ................................................................................. 115
14.1 Switch-off states......................................................................................... 115
14.2 Switching off and dismantling ................................................................... 115
14.3 Return delivery ........................................................................................... 116
14.4 Disposal...................................................................................................... 116
15 Technical data ...................................................................................... 117
15.1 Dimensional drawings and part numbers................................................. 122
15.1.1 DHSP100 Ex-3K sender/receiver unit ..................................... 122
15.1.2 Flange with tube ........................................................................ 123
15.1.3 MCUDH Ex-3K control unit ........................................................ 124
15.1.4 MCU control unit ....................................................................... 125
16 Spare parts ............................................................................................ 127
16.1 Consumable parts...................................................................................... 127
16.1.1 Consumable parts DUSTHUNTER SP100 Ex-3K....................... 127
16.1.2 Consumable parts, MCUDH Ex-3K / MCU control unit............. 128
16.2 Spare parts................................................................................................. 128
16.2.1 Spare parts DUSTHUNTER SP100 Ex-3K.................................. 128
16.2.2 Spare parts, control unit............................................................ 128
17 Accessories............................................................................................ 129
17.1 Weather protection hood ........................................................................... 129
17.2 Connection technology .............................................................................. 129
17.2.1 Sender/receiver - control unit cable ......................................... 129
17.3 Fastening technology ................................................................................. 129
17.4 Optional accessories.................................................................................. 130
17.4.1 Options for MCUDH Ex-3K control unit ..................................... 130
17.4.2 Options for MCU control unit..................................................... 130
17.5 Other accessories ...................................................................................... 130
17.5.1 Device check accessories ......................................................... 130

Contents
88020216/1JQX/V3-1/2023-05 | SICKO P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-3K
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18 Annex.......................................................................................................131
18.1 Compliances ...............................................................................................131
18.2 Electrical protection....................................................................................131
18.3 Approvals ....................................................................................................131
18.4 Licenses ......................................................................................................132

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ABOUT THIS DOCUMENT 1
1Aboutthisdocument
1.1 Function of this document
These Operating Instructions describe:
●Device components
●Installation
●Operation
●Maintenance tasks necessary for safe operation
1.2 Scope of application
These Operating Instructions apply exclusively to the measuring system described in the
product identification (see “Product identification”, page 20).
The Operating Instructions are not applicable for other SICK measuring devices.
The standards mentioned in the Operating Instructions must be observed in their currently
valid version.
1.3 Target groups
This Manual is intended for persons who install, operate and maintain the device.
Operation
The device may only be operated by authorized persons who, based on their device-specific
training as well as knowledge of the relevant regulations, can assess the tasks given and
recognize the hazards involved.
Installation and maintenance
Installation and maintenance may only be carried out by trained specialists familiar with
the installation conditions.
Observe the information at the beginning of the respective Sections.
1.4 Further information
Observe the enclosed data medium for the product, as well as other supplied documents.
Further information on the internet under: sick.com

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1ABOUT THIS DOCUMENT
1.5 Symbols and document conventions
1.5.1 Warning symbols
Table 1: Warning symbols
1.5.2 Warning levels and signal words
DANGER
Risk or hazardous situation which will result in severe personal injury or death.
WARNING
Risk or hazardous situation which could result in severe personal injury or death.
CAUTION
Hazard or unsafe practice which could result in less severe or minor injuries.
NOTICE
Hazard which could result in property damage.
Note
Hints.
Symbol Significance
Hazard (general)
Hazard by voltage
Hazard by laser radiation
Hazard in potentially explosive atmospheres
Hazard for environment and organisms

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ABOUT THIS DOCUMENT 1
1.5.3 Information symbols
Table 2: Information symbols
1.6 Data integrity
SICK Engineering GmbH uses standardized data interfaces, such as standard IP
technology, in its products. The focus here is on product availability and features.
SICK Engineering GmbH always assumes that the customer ensures the integrity and
confidentiality of data and rights affected in connection with the use of the products.
In all cases, the customer is responsible for the implementation of safety measures
suitable for the respective situation, e.g., network separation, firewalls, virus protection and
patch management.
Symbol Significance
Important technical information for this product
Important information on electric or electronic functions
Information on product condition with regard to protection against explosions (general)
Information on product condition with regard to Explosion Protection Directive ATEX
2014/34/EU
Additional information and explanations

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2FOR YOUR SAFETY
2Foryoursafety
2.1 Basic safety information
Work on the device
Hazards through hot or aggressive gases and high pressure
The DUSTHUNTER SP100 Ex-3K sender/receiver unit is fitted directly on the gas-carrying
duct. On systems with a low hazard potential, installation or removal can be carried out
during system operation when the applicable regulations and safety provisions of the
system are observed, and necessary and appropriate protective measures are taken.
NOTICE:
Risk for system safety through work on the device not described in these
Operating Instructions
Work on the device not described in the Operating Instructions or associated documents
can lead to unsafe operation of the measuring system and thus endanger equipment
safety.
▸Only carry out the work described in these Operating Instructions and the
corresponding documents on the device.
WARNING:
Injury risk through incorrect lifting and carrying of device components
Due to the weight of individual device components, carelessness and mishandling
during transport can lead to injuries.
▸Consider the device component's weight before lifting.
▸Observe the regulations for protective clothing (e.g., safety shoes, non-slip gloves).
▸To carry the device components safely, use handles or reach under the component.
▸Do not use protruding parts on device components for carrying.
▸Call in further persons as assistants as required.
▸Use a hoist or transport equipment as an option.
▸Pay attention to the transport safety.
▸Clear obstacles that could cause falls and collisions out of the way.
WARNING:
Health hazard due to sample gas and sample gas residues
When working on the sender/receiver unit, leaking gas paths can cause sample gas
dangerous to health to escape from the duct and contaminate the enclosure.
▸In systems with gases detrimental to health, high pressure, high operating
temperatures or risk of explosions, the sender/receiver unit fitted on the duct may
only be installed or removed when the system is at a standstill.
▸When removing the sender/receiver unit from the duct, the sample gas supply must
be interrupted and the opening in the duct closed with a blind flange. The purge gas
supply remains.
▸Before opening the gas paths: Take suitable safety measures (e.g., stop sample gas
feed, purge gas paths with inert gas, protective clothing).
▸Skin or eye contact with contaminated parts:
– Observe the instructions of the respective Safety Data Sheet.
– Consult a doctor.
▸Remove sample gas residues: Purge all parts carrying sample gas with inert gas for a
sufficiently long time.
▸Remove solid and liquid residues.

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FOR YOUR SAFETY 2
WARNING:
Risk of burns due to hot sample gases and components
Risk of skin burns through contact with hot sample gases and hot components
▸In systems with high temperatures, work on the duct or hot assemblies should only
be carried out when the system is shut down.
▸Keep fitted valves and seals closed until cooled down.
▸Allow enclosure parts or surfaces involved to cool down before touching.
When work is necessary on hot assemblies:
▸Before opening gas paths or touching surfaces: Take suitable protective measures
(e.g. personal protective equipment).
▸Use heat-resistant tools.
▸Keep disassembled hot components away from electrical components and cables.
Allow to cool down at a protected place.
WARNING:
Hazard through escaping gas or bursting components due to overpressure in
the system
High process pressure can damage components and lead to personal injury through
bursting components or escaping gas.
▸Only use components designed for the process pressure in the application (see
“Technical data”, page 117).
▸Only carry out installation and maintenance of the device when the system is
switched off.
NOTICE:
Danger to operational safety at high temperatures
The device can be damaged by high temperatures. The operator must take suitable
measures to ensure the enclosure temperature does not exceed 70 °C.
▸Avoid direct sunlight. If necessary, take measures to protect against the weather.
▸If necessary, insulate hot surfaces at the installation location to prevent temperature
penetration.
NOTICE:
Danger to operational safety in the event of visible damage
Operating the measuring system with visible damage can further damage the measuring
system or make it a source of danger.
▸Check the components of the measuring system for external damage after each
transport.
▸If there is visible damage, do not put the measuring system into operation but send it
in for repair (see “Return delivery”, page 116).

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2FOR YOUR SAFETY
Hazards through electrical equipment
Hazards through laser beam
Hazards through explosive or combustible gases and dust
WARNING:
Hazard through electric shock
There is a risk of electric shock when working on system components with the power
supply switched on.
▸Before starting work on the measuring device, ensure the power supply can be
switched off using a power isolating switch or circuit breaker in accordance with the
applicable standard.
▸Make sure the power isolating switch is easily accessible.
▸An additional disconnecting device is mandatory when the power isolating switch is
difficult to access or cannot be accessed when connecting the equipment after
installation.
▸Switch off the power supply before carrying out any work on the measuring device.
▸After completion of the work or for calibration, the power supply may only be
activated again by authorized personnel complying with the applicable safety
regulations.
WARNING:
Hazard by laser radiation
Laser class 2 device.
▸Never look directly into the beam path.
▸Do not point the laser beam at persons.
▸Avoid laser beam reflections.
▸Observe the valid national regulations for laser protection.
WARNING:
Risk of explosion from escaping gas
There is a risk of explosion due to escaping gases when the sender/receiver unit is
pulled out of the duct or the maximum process pressure is exceeded.
▸Only fit or remove device components when the system is shut down.
▸Observe the maximum permissible process pressure (see “Technical data”,
page 117), safe operation of the measuring system is not possible when this value is
exceeded.
CAUTION:
Risk of explosion through incorrect or missing potential equalization.
Incorrectly connected potential bonding can generate charges which represent a
possible source of ignition in a potentially explosive atmosphere.
▸Connect potential equalization to all planned points.
▸Ensure the potential equalization is connected during all work on the device
described in the Operating Instructions.
DANGER:
Risk of explosion when opening the MCUDH Ex-3K control unit
The MCUDH Ex-3K control unit must not be opened in an Ex-atmosphere until 3 minutes
after switching off the power supply, so that the residual energy in the capacitors can
dissipate.
▸First open the MCUDH Ex-3K control unit in an Ex-atmosphere after the waiting
period.
▸Take suitable precautions and measures to prevent dust from entering the control
unit enclosure when the enclosure door is open.

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FOR YOUR SAFETY 2
Also observe the notes on operation in potentially explosive atmospheres (see “Operation
in potentially explosive atmosphere”, page 34).
2.2 Warning information on the device
2.2.1 Information on the sender/receiver unit
Fig. 1: Information on the DUSTHUNTER SP100 Ex-3K sender/receiver unit
Table 3: Significance of the information on the DUSTHUNTER SP100 Ex-3K sender/receiver unit
DANGER:
Risk of explosion when opening the sender/receiver unit enclosure
Opening the DUSTHUNTER SP100 Ex-3K sender/receiver unit housing cancels the
explosion protection, the device can then be an ignition source.
▸The DUSTHUNTER SP100 Ex-3K sender/receiver unit enclosure may only be opened
by SICK Service.
▸If the DUSTHUNTER SP100 Ex-3K sender/receiver unit enclosure has been opened,
take the device out of operation immediately and contact SICK Service.
No. Note
1Information on aligning the device according to the flow direction in the duct
(see “Adapting the sender/receiver unit to the duct geometry”, page 65)
2 Warning: Only unplug and plug the connector plug when the supply voltage is switched off
3 Information on the connection point of the potential equalization
4 Type plate for clear identification of the device
5 Warning: Laser class 2, do not look into the beam
6 Manufacturer logo




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2FOR YOUR SAFETY
2.2.2 Information on the MCUDH Ex-3K control unit
Fig. 2: Information on the MCUDH Ex-3K control unit - external
Fig. 3: Information on the MCUDH Ex-3K control unit - internal
Table 4: Significance of the information on the MCUDH Ex-3K control unit
No. Note
1 Information on the connection point of the potential equalization
2Warning: Do not open the door of the MCUDH Ex-3K control unit until 3 minutes after switching
off the power supply
3 Type plates for clear identification of the device
4 Information on the specifications of the fuses
5 Warning: Do not remove or replace the fuse while the power is on
6 Specifications regarding the button cell used
7 Warning: Do not disconnect or change connectors and modules while these are live
8 Information on the specifications of the relay contacts




Second type plate on
the inside of the door




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FOR YOUR SAFETY 2
2.3 Intended use
Purpose of the system
The measuring system (see “Product description”, page 20) is designed as intended for use
in industrial technical systems for continuous measurement of the dust load in gas flows.
The device is used for both emission and process measurement and is intended for use in
potentially explosive gas or dust atmospheres.
Correct use
●The device should only be used as described in these Operating Instructions. The
manufacturer bears no responsibility for any other use.
●Observe all measures necessary for conservation of value, e.g., for maintenance,
inspection, transport and storage.
●No components may be removed, added or changed on and in the device unless
described and specified in the official manufacturer information. Otherwise
– the device could become dangerous
– any warranty by the manufacturer becomes void.
Sender/receiver unit restrictions of use
The sender/receiver unit complies with ATEX category 3G and 3D (Zone 2 and 22) and is
only to be used in corresponding areas (see “Application illustration DUSTHUNTER SP100
Ex-3K”, page 35).
The device identification is as follows:
DHSP-TxxxxEX3K
Ex II 3G Ex nR op is IIC T6 Gc
Ex II 3D Ex tc op is IIIC T85°C Dc
Control unit restrictions of use
The MCUDH control unit complies with ATEX category 3G and 3D and is only to be used in
corresponding areas (see “Application illustration DUSTHUNTER SP100 Ex-3K”, page 35).
The device identification of the version with power supply unit is as follows:
MCUDH-NSxx
Ex II 3G Ex ec nA nC IIC T4 Gc
Ex II 3D Ex tc IIIC T85°C Dc
The device identification of the version without power supply unit is as follows:
MCUDH-N2xx
Ex II 3G Ex ec IIC T4 Gc
Ex II 3D Ex tc IIIC T85°C Dc
NOTE:
Observe explosion protection regulations:
●Installation, transport, commissioning, maintenance and testing may only be carried
out by experienced personnel who have knowledge of the rules and regulations for
potentially explosive areas. In particular, this applies to:
– Ignition protection types and applicable standards
– Installation regulations and zone classification

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2FOR YOUR SAFETY
2.4 Responsibility of user
Avoiding damage
In order to avoid malfunctions that can cause direct or indirect personal injury or property
damage, the operator must ensure:
▸The maintenance personnel responsible can reach the site immediately, and at any
time.
▸The maintenance personnel are adequately qualified to react correctly to malfunctions
of the measuring system and any resulting operational interruptions (e.g., when used for
measurement and control purposes).
▸The malfunctioning equipment is switched off immediately in case of doubt and that
switching off does not cause collateral malfunctions.
Procedure for unsafe operating conditions
If the device is or could be in an unsafe state:
▸Disconnect the device from the power voltage and signal voltage.
▸Put the device out of operation.
▸Secure the device against unallowed or unintentional start-up.
For further information, see “Recognizing the safe operating state”, page 66.
Protection devices
According to the respective hazard potential:
▸Suitable protective devices must be available.
▸Personal safety equipment must be available in sufficient quantities.
▸Personal safety equipment must used by the personnel.
Purge gas
The purge gas supply serves to protect device-internal optical surfaces and internal parts
against hot or aggressive gases. If explosion protection permits, the purge gas supply
should remain switched on when the plant is shut down. If the purge gas supply fails, the
optical assemblies can be severely damaged in a short time (see “Purge gas supply”,
page 30). There is a possible risk of flammable gases escaping, posing an explosion
hazard.
The user must ensure that:
▸The purge gas supply operates safely and without interruption, as far as explosion
protection permits.
▸A correct connection between the lines and connections is ensured and regularly
checked.
▸Suitable material (preferably metal) is used for the purge gas line and plug connections
are avoided wherever possible.
▸Failure of the purge gas supply is immediately detected (e.g., by using pressure
monitors).
▸If the purge gas supply fails, the sender/receiver unit is removed from the duct and the
duct opening is covered taking explosion protection into account (e.g. with a blind flange,
see “Fastening technology”, page 129).
Preventive measures for operating safety
The user must ensure that:
▸A failure of the measuring system does not cause incorrect measurements and damage
and does not lead to unsafe operating conditions.
▸The specified maintenance and inspection tasks are carried out regularly by qualified,
experienced personnel.

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Subject to change without notice
FOR YOUR SAFETY 2
Correct project planning
●Basis of this Manual is the delivery of the device according to the preceding project
planning (e.g., based on the SICK application questionnaire) and the relevant delivery
state of the device (see delivered System Documentation).
▸Contact SICK Service if you are not sure whether the device corresponds to the state
defined during project planning or to the delivered system documentation.
Special local conditions
In addition to the information in these Operating Instructions, follow all local laws, technical
rules and company-internal operating directives applicable wherever the device is installed.
Read the Operating Instructions
▸Read and observe these Operating Instructions.
▸Observe all safety information.
▸If there is something you do not understand: Contact SICK Service.
Retention of documents
These Operating Instructions must be:
▸Available for reference.
▸Passed on to new owners.

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3PRODUCT DESCRIPTION
3 Product description
3.1 Product identification
The measuring system comprises the components sender/receiver unit and control unit.
The characteristics of the sender/receiver unit determine the practical applicability,
therefore the designation of the sender/receiver unit is the same as that of the measuring
system.
Table 5: Product identification
Type plates
The type plate serves correct device identification. If the device is suitable for use in
potentially explosive atmospheres, possible areas of application are also listed there based
on the explosion protection types.
Fig. 4: Type plate, sender/receiver unit and MCUDH Ex-3 control unit (example)
Fig. 5: Type plate, MCU control unit (example)
Measuring system DUSTHUNTER SP100 Ex-3K
Manufacturer SICK Engineering GmbH
Bergener Ring 27 · D-01458 Ottendorf-Okrilla · Germany
Components:
Sender/receiver unit DUSTHUNTER SP100 Ex-3K
Device version Version for potentially explosive atmospheres, zones 2/22
Type plate Sender/receiver unit: On right side
Components:
Control unit MCUDH Ex-3K
Device version Version for potentially explosive atmospheres, zones 2/22
Type plates Control unit: on the left side and inside cover
Components:
Control unit MCU
Device version Conventional version
Type plates Control unit: on the left side and inside cover
No. Variable
1Barcode
2Typecode
3PartNo.
4 Serial number
5 Minimum gas temperature
6 Maximum gas temperature
7Nominallength
8Yearofmanufacture
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
No. Variable
1Barcode
2Typecode
3PartNo.
4 Serial number
5Technicaldata
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