SICK DUSTHUNTER SP100 Ex Operating instructions

Brand: SICK

Model: DUSTHUNTER SP100 Ex

Type: Operating instructions

MMM

MMMOPERATING INSTRUCTIONS

OPERATING INSTRUCTIONS

DUSTHUNTER SP100 Ex

Dust Concentration Monitor

Installation, Operation, Maintenance

8020016/ZS56/V2-1/2018-01| SICKOPERATING INSTRUCTIONS | DUSTHUNTER SP100 Ex

Subject to change without notice

Described Product

Product name: DUSTHUNTER SP100 Ex

Manufacturer

SICK Engineering GmbH

Bergener Ring 27 · D-01458 Ottendorf-Okrilla · Germany

Phone: +49 35205 524-10

Fax: +49 35205 524-50

E-Mail: info.pa@sick.de

Trademarks

Windows is a Microsoft Corporation trademark.

Other product names used in this document may also be trademarks and are only used

for identification purposes.

Legal Information

This document is protected by copyright. All 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.

Original document

This document is an original document of SICK Engineering GmbH.

Contents

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Subject to change without notice

1 Important information .............................................................................. 6

1.1 Main hazards...................................................................................................6

1.1.1 Hazard through hot and/or aggressive gases and high pressure 6

1.1.2 Hazards through electrical equipment .......................................... 6

1.1.3 Hazards through laser beam..........................................................6

1.1.4 Hazards through explosive or combustible gases, dust ...............6

1.2 Symbols and document conventions .............................................................7

1.2.1 Warning symbols ............................................................................7

1.2.2 Warning levels and signal words.................................................... 7

1.2.3 Information symbols .......................................................................7

1.3 Information on operation in potentially explosive atmospheres...................8

1.4 Intended use ...................................................................................................9

1.5 Responsibility of user....................................................................................10

1.5.1 General information......................................................................10

1.5.2 Safety information and protective measures ..............................10

2 Product description .................................................................................13

2.1 Measuring principle, measured variables....................................................13

2.1.1 Functional principle ......................................................................13

2.1.2 Response time ..............................................................................14

2.1.3 Function check..............................................................................15

2.2 Device components ......................................................................................17

2.2.1 Sender/receiver unit ....................................................................18

2.2.2 Flange with tube ...........................................................................20

2.2.3 Control unit MCU...........................................................................21

2.2.3.1 Standard interfaces ..................................................21

2.2.3.2 Versions .....................................................................22

2.2.3.3 Type code ..................................................................23

2.2.3.4 Modules.....................................................................24

2.2.4 Installation accessories................................................................25

2.2.5 Test equipment for linearity test..................................................25

2.3 Device configuration .....................................................................................26

2.3.1 Sender/receiver unit ....................................................................26

2.3.2 Voltage and purge gas supply ...................................................26

2.4 SOPAS ET (PC program) ................................................................................27

3 Assembly and installation ......................................................................28

3.1 Project planning ............................................................................................28

3.2 Assembly .......................................................................................................29

3.2.1 Fitting the flange with tube ..........................................................29

3.2.2 Fitting control unit MCU................................................................32

3.2.3 Fitting a weatherproof hood .......................................................33

Contents

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3.3 Electrical installation .................................................................................... 34

3.3.1 Electrical safety ............................................................................ 34

3.3.1.1 Properly installed power isolating switches............. 34

3.3.1.2 Lines with correct rating........................................... 34

3.3.1.3 Grounding the devices.............................................. 34

3.3.1.4 Potential equalization of explosion-protected

devices ...................................................................... 34

3.3.1.5 Responsibility for system safety .............................. 35

3.3.2 General information, prerequisites ............................................. 36

3.3.3 Installing the purge gas supply .................................................... 37

3.3.3.1 Purging with instrument air .................................. 37

3.3.4 Connecting control unit MCU ....................................................... 38

3.3.4.1 Work to be done ....................................................... 38

3.3.4.2 Connections for MCU processor board.................... 39

3.3.4.3 Connection of connection line to MCU .................... 40

3.3.4.4 Standard connection ................................................ 41

3.3.5 Connecting the MCU remote control unit.................................... 42

3.3.5.1 Connection to control unit MCU............................... 42

3.3.5.2 Connection to the MCU remote control unit............ 42

3.3.6 Fitting the interface and I/O module (option) ............................. 43

4 Commissioning and configuration........................................................ 44

4.1 Basics............................................................................................................ 44

4.1.1 General information ..................................................................... 44

4.1.2 Installing SOPAS ET ...................................................................... 44

4.1.2.1 Password for SOPAS ET menus................................ 44

4.1.3 Connection to the device via USB line ........................................ 44

4.1.3.1 Finding the DUSTHUNTER COM port........................ 45

4.1.4 Connection to the device via Ethernet (option) .......................... 46

4.2 Installing the sender/receiver unit .............................................................. 47

4.2.1 Adapting the sender/receiver unit to the flow direction............. 47

4.2.2 Fitting and connecting the sender/receiver unit ........................ 48

4.2.3 Assigning the sender/receiver unit to the measuring location

(in SOPAS ET)................................................................................ 49

4.3 Setting standard parameters ....................................................................... 51

4.3.1 Assigning the MCU to the sender/receiver unit.......................... 51

4.3.2 Factory settings ............................................................................ 52

4.3.3 Determining the function check .................................................. 53

4.3.4 Setting the analog outputs parameters ...................................... 54

4.3.5 Setting the analog inputs parameters......................................... 56

4.3.6 Setting the response time............................................................ 57

4.3.7 Calibration for dust concentration measurement ...................... 58

4.3.8 Data backup in SOPAS ET............................................................ 60

4.3.9 Starting measurement mode....................................................... 61

Contents

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4.4 Setting the Interface module parameters....................................................62

4.4.1 General information......................................................................62

4.4.2 Setting the Ethernet module parameters .................................63

4.5 Operating/setting parameters via the optional LC-Display.........................64

4.5.1 General information on use .........................................................64

4.5.2 Password and operating levels ....................................................64

4.5.3 Menu structure .............................................................................65

4.5.4 Parameter settings .......................................................................65

4.5.4.1 MCU ...........................................................................65

4.5.4.2 Sender/receiver unit.................................................68

4.5.5 Using SOPAS ET to modify display settings .................................69

5 Maintenance.............................................................................................71

5.1 General ..........................................................................................................71

5.2 Maintenance on the sender/receiver unit ..................................................73

5.2.1 Cleaning the optics of the sender/receiver unit..........................73

5.2.2 Checking the contamination value ..............................................74

5.2.3 Checking restricted breathing ......................................................75

5.3 Decommissioning..........................................................................................76

6 Troubleshooting .......................................................................................77

6.1 General ..........................................................................................................77

6.2 Sender/receiver unit.....................................................................................79

6.3 Control unit MCU ...........................................................................................80

6.3.1 Malfunctions .................................................................................80

6.3.2 Warning and malfunction messages in SOPAS ET......................80

6.3.3 Replacing the fuse........................................................................82

7 Specifications...........................................................................................83

7.1 Compliances..................................................................................................83

7.2 Technical data .............................................................................................84

7.3 Dimensions, Part Nos. ..................................................................................86

7.3.1 Sender/receiver unit ...................................................................86

7.3.2 Flange with tube ...........................................................................87

7.3.3 Control unit MCU...........................................................................88

7.3.4 Weatherproof covers ....................................................................89

7.4 Accessories ...................................................................................................89

7.4.1 Line sender/receiver unit - MCU ..................................................89

7.4.2 Assembly parts..............................................................................89

7.4.3 Device check accessories ............................................................89

7.4.4 Options for MCU control unit........................................................90

7.4.5 Misc. ..............................................................................................90

7.5 Consumable parts for 2-years operation .....................................................90

7.5.1 Sender/receiver unit ....................................................................90

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1 IMPORTANT INFORMATION

1 Important information

1.1 Main hazards

1.1.1 Hazard through hot and/or aggressive gases and high pressure

The optical subassemblies are fitted directly on the gas-carrying duct. In installations with a

low hazard potential (no danger to health, low pressure, low temperatures in the gas duct),

these units can be installed and removed while the installation is in operation, providing the

applicable specifications and safety regulations for the system are adhered to and all nec-

essary and suitable protective measures are taken.

1.1.2 Hazards through electrical equipment

1.1.3 Hazards through laser beam

1.1.4 Hazards through explosive or combustible gases, dust

The DUSTHUNTER SP100 Ex measuring system may be used in potentially explosive

atmospheres only according to the respective specifications.

WARNING: Danger from exhaust gas

▸ In plants with gases detrimental to health, overpressure, high temperatures,

risk of explosions, the sender/receiver unit fitted on the duct may only be

installed/removed when the plant is at a standstill.

WARNING: Danger through power voltage

▸ Disconnect power supply lines before working on power connections or

parts carrying power voltage.

▸ Refit any contact protection removed before switching the power voltage

back on again.

WARNING: Hazards through laser beam

!▸

Never look directly into the beam path

!▸

Do not point the laser beam at persons

▸ Pay attention to laser beam reflections.

WARNING: Hazards by explosive or combustible gases, dust

▸ In potentially explosive atmospheres, only use the version of the DUST-

HUNTER SP100 Ex specified for such use (see “Information on operation in

potentially explosive atmospheres”, page 8).

WARNING: Hazards by explosive or combustible gases, dust

▸ Only specially trained service personnel may open the sender/receiver unit,

so that ignition protection is maintained.

This service personnel must have been specially trained by SICK for the

DUSTHUNTER SP100 Ex measuring system.

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IMPORTANT INFORMATION 1

1.2 Symbols and document conventions

1.2.1 Warning symbols

1.2.2 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.

1.2.3 Information symbols

WARNING: Explosion hazards through hot surfaces

▸ The hot surface of the measuring probe and, possibly, escaping hot gases

can cause a risk of explosions when pulling the sender/receiver unit out of

the duct.

Symbol Significance

Hazard (general)

Hazard by voltage

Hazards through laser radiation

Hazard in potentially explosive atmospheres

Symbol Significance

Important technical information for this product

Important information on electric or electronic functions

Information on product condition relating to protection against explosions (general)

Information on product condition with regard to Explosion Protection Directive ATEX

2014/34/EU

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1 IMPORTANT INFORMATION

1.3 Information on operation in potentially explosive atmospheres

● The electronics unit of the sender/receiver unit corresponds to ATEX 2014/

34/EU with identification:

ATEX II 3G Ex nR op is IIC T6 Gc / ATEX II 3D Ex tc op is IIIC T85°C Dc

● The explosion protection marking is located on the type plate (example):

EU Type Examination Certificate: BVS 16 ATEX E 068 X

Character “X” following the certificate number indicates the following special

condition for safe application of the device:

Correct temperature class selection is required.

● The maximum allowable surface temperature of the enclosure of the

electronics unit is 70°C. The external heat source (duct walls) must be

insulated so that 70°C is not exceeded.

3337904

0044

Manufactured

PN:

05 06

°C T °C

gas

SN:

NL:

-15°C T +60°C

amb

No. Variable

01 Barcode

02 Type code

03 Material number

04 Serial number

05 Min. gas temperature

06 Max. gas temperature

07 Nominal length

08 Month/year

!▸

Do not remove, add or change any components on the sender/receiver unit

unless described and specified in the official manufacturer information, oth-

erwise the approval for use in potentially explosive atmospheres becomes

void.

▸ Observe the stipulated commissioning procedure (see “Commissioning and

configuration”, page 44).

▸ Adhere to the prescribed maintenance intervals (Section“Maintenance”,

page 71).

!▸

Do not insert or remove the plug on the sender/receiver unit when under

voltage.

!▸

System components without Ex marking must not be used in potentially

explosive atmospheres.

▸ Ex atmosphere

– Observe regulations for transport in Ex atmospheres, e.g. no transport of

packaging materials in Ex atmospheres.

– Do not perform installation work in Ex atmospheres.

Commissioning and decommissioning as well as cleaning may only be

performed when it is verified that no explosive media are present (verifi-

cation by gas detector).

– The enclosure of the sender/receiver unit may not be opened and

screwed down in Ex atmospheres.

▸ Ex protection zone

– Use only suitable tools for the Ex protection zone.

– Observe behavior rules to prevent sparks.

– Only work that does not affect ignition protection is allowed.

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IMPORTANT INFORMATION 1

1.4 Intended use

Purpose of the device

The DUSTHUNTER SP100 Ex measuring system serves continuous measurement of dust

concentrations in exhaust gas and exhaust air plants.

Correct use

▸ Use the device only 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 and

inspection and/or transport and storage.

● Do not remove, add or modify any components to or on the device unless described and

specified in the official manufacturer information. Otherwise

– the device could become dangerous

– the manufacturer’s warranty becomes void

Restrictions of use

WARNING: Risk of explosion in potentially explosive atmospheres

▸ Only use the measuring system in potentially explosive atmospheres accord-

ing to the device identification (see “Information on operation in potentially

explosive atmospheres”, page 8.

▸ Only use the measuring system within the temperature limits as specified in

these Operating Instructions as well as on the type plate.

The specified values must not be exceeded even for brief periods.

▸ The use of the measuring system with hybrid mixtures (mixture of combusti-

ble gases or vapors with dust or fluff) must be evaluated according to the sit-

uation being considered, e.g. regarding concentration limits or energy and

temperature limits.

!▸

Do not install any components, apart from the electronics unit and the

sender/receiver unit, in lines, tanks, or other installation areas where

explosive gas and/or dust mixtures may be present.

▸ The measuring system must not be operated with dust deposits thicker than

5mm.

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1 IMPORTANT INFORMATION

1.5 Responsibility of user

1.5.1 General information

Designated users

The DUSTHUNTER SP100 Ex measuring system may only be installed and operated by

skilled technicians who, based on their technical training and knowledge as well as

knowledge of the relevant regulations, can assess the tasks given and recognize the

hazards involved.

Special local conditions

▸ Observe the valid legal regulations as well as the technical rules deriving from

implementation of these regulations applicable for the respective equipment during work

preparation and performance (e.g. Ex protection zones).

▸ Carry out work according to the local conditions specific for the equipment as well as

operational hazards and regulations.

Risk assessment

The operator must perform a risk assessment according to the ATEX Directive for operators

1999/92/EC.

Retention of documents

Keep the Operating Instructions belonging to the measuring system as well as equipment

documentation onsite for reference at all times. Pass the respective documentation on to

any new owner of the measuring system.

1.5.2 Safety information and protective measures

Protection devices

For devices used in potentially explosive atmospheres:

● Installation, commissioning, maintenance and testing may be performed

only by experienced persons who have knowledge of the rules and regula-

tions for potentially explosive atmospheres, particularly:

– Ignition protection types

– Installation regulations

–Zone classification

● Applicable standards (examples):

– IEC 60079-0: Electrical apparatus for explosive gas atmospheres; Part 0:

General requirements

– IEC 60079-15: Equipment protection by type of protection “n”

– IEC 60079-28: Protection of equipment and transmission systems using

optical radiation

– IEC 60079-31: Equipment Dust Ignition Protection By Enclosure "t"

NOTE:

Depending on the particular hazard potential, an adequate number of suitable

protection devices and personal safety equipment must be available and used

by the personnel.

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IMPORTANT INFORMATION 1

Behavior during purge gas failure

The purge gas supply serves to protect optical subassemblies fitted on the duct against hot

or aggressive gases. Leave the supply switched on when the equipment is at a standstill.

Optical subassemblies can be severely damaged in a short time or combustible gases can

escape causing a risk of explosion if the purge gas supply fails.

Preventive measures for operating safety

Recognizing malfunctions

Every deviation from normal operation is to be regarded as a serious indication of a

functional impairment. These are, amongst others:

● Warning displays (e.g. heavy contamination)

● Significant drifts in measured results

● Increased power consumption

● Higher temperatures of system components

● Monitoring devices triggering

● Smells or smoke emission.

NOTE:

The user must ensure that:

▸ The purge air supply runs reliably and continuously,

(the sender/receiver unit must have a permanent supply or purge gas.)

▸ Failure of the purge gas supply is immediately detected (e.g., by using

pressure monitors).

WARNING: Risk of explosion

▸ The sender/receiver unit must be disconnected immediately from the power

supply when a purge gas failure occurs.

To avoid damage to the device, the sender/receiver must be removed from

the duct but then only when it can be ensured that, when removing the

device, the probe is either cold or significantly below the ignition tempera-

ture or an Ex atmosphere does not exist.

Before putting the device into operation again, ensure no ignitable gas is in

the enclosure and protection by the restricted breathing enclosure continues

to exist.

NOTE:

The user must ensure that:

▸ Neither failures nor erroneous measurements can lead to operational states

that can cause damage or become dangerous

▸ The specified maintenance and inspection tasks are carried out regularly by

qualified, experienced personnel.

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1 IMPORTANT INFORMATION

Avoiding damage

Necessary insulation

The thermal insulation is an explosion protection measure to be subjected to special

examination when gas temperatures in the duct are higher than the surface temperature

allowed by the selected temperature class. Observe the following during this examination:

– Apart from the duct surface, other parts (e.g. flange tube and flange) that can be

subjected to prohibited high temperatures through thermal conduction are to be

included in the insulation or the thermal conduction prevented.

– The operator must ensure that thermal conduction is reduced through suitable insula-

tion to such an extent that the temperature of the restricted breathing enclosure

remains below 70 °C and therefore below the temperature of the temperature class. The

operator must take into consideration that the device-internal warming can be up to 2K.

– when removing the sender/receiver unit from the duct, the operator must ensure that

the probe is either cold or significantly below the ignition temperature or an Ex

atmosphere does not exist.

NOTE:

In order to avoid malfunctions that can cause direct or indirect personal injury

or property damage, the operator must ensure:

▸ The responsible maintenance personnel are present at any time and as fast

as possible

▸ The maintenance personnel are adequately qualified to react correctly to

malfunctions of the measuring system and any resulting operational inter-

ruptions (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.

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PRODUCT DESCRIPTION 2

2 Product description

2.1 Measuring principle, measured variables

2.1.1 Functional principle

The measuring system works according to the scattered light measurement principle

(forward dispersion). A laser diode beams the dust particles in the gas flow with modulated

light in the visual range (wavelength approx. 650 nm). A highly sensitive detector registers

the light scattered by the particles, amplifies the light electrically and feeds it to the

measuring channel of a microprocessor as central part of the measuring, control and

evaluation electronics. The measuring volume in the gas duct is defined through the inter-

section of the sender beam sent and the receive aperture.

Continuous monitoring of the sender output registers the smallest changes in brightness of

the light beam sent which then serves to determine the measurement signal.

Fig. 1: Measuring principle

Determining the dust concentration

Measured scattered light intensity (SI) is proportional to dust concentration (c). Scattered

light intensity not only depends on the number and size of particles but also on the optical

characteristics of the particles and therefore the measuring system must be calibrated

using a gravimetric comparison measurement for exact dust concentration measurement.

The calibration coefficients determined can be entered directly in the measuring system as

c = cc2

· SI² + cc1 · SI + cc0

(Entry see “Calibration for dust concentration measurement”, page 58; standard factory

setting: cc2 = 0, cc1 = 1, cc0 = 0).











Approx. 15°



Sender/receiver unit



Gas duct



Receiver



Measuring volume



Sender

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2 PRODUCT DESCRIPTION

2.1.2 Response time

The response time is the time required to attain 90% of the signal peak after a sudden

change in the measurement signal. It can be set anywhere between 1 and 600 s. As the

response time increases, transient measured value fluctuations and interruptions are

damped stronger and stronger which “smoothes out” the output signal.

Fig. 2: Response time

100

Response time

t in s

Measured value with response time

90% of the signal peak

Process change

0 10 20 30 40 50 60 70 80 90

Measured value

in %

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PRODUCT DESCRIPTION 2

2.1.3 Function check

A function check can be triggered at fixed intervals as from a definable starting timepoint

for an automatic function check of the measuring system. The setting can be made using

the SOPAS ET operating program (see “Determining the function check”, page 53). Any

unallowed deviations from normal behavior that may occur are signaled as errors. A

function check triggered manually can help localize possible error causes should a device

malfunction occur.

The function check comprises:

● Approx. 45 s measurement of zero value, control value and contamination of the optical

interfaces

The measuring time depends on the increase in contamination value (change > 0.5% →

measurement is repeated up to 2 times).

● Every 90 s (standard value) output of values determined (duration parameter can be

modified, see “Determining the function check”, page 53).

Fig. 3: Function check output on a plotter

Zero value measurement

The sender diode is switched off for zero point control so that no signal is received. This

means possible drifts or zero point deviations are detected reliably in the overall system

(e.g., due to an electronic defect). A warning signal is generated when the “zero value” is

outside the specified range.

Further information → Service Manual

Contamination degree

(Live Zero = 0%,

20 mA = 40%)

Function check

start

Zero value output (Live Zero)

Control value output

(70% value, span)

Contamination output

Control value

determination

Paper feed

Function check

end

● The analog output must be activated to output control values on the analog output

(see “Setting the analog outputs parameters”, page 54).

● The value measured last is output on the analog output during control value determi-

nation.

● If the control values are not output on the analog output, the current measured value

is output when control value determination has completed.

● Relay 3 is switched on during a function check (see “MCU processor board connec-

tions”, page 39).

● A function check is not started automatically when the measuring system is in “Main-

tenance” mode.

● If the start timepoint or cycle interval is changed, a check cycle timed between

parameter setting and new start timepoint is still carried out.

● Changes to the interval time are first effective after the next start timepoint.

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2 PRODUCT DESCRIPTION

Control value measurement (Span test)

Sender beam intensity changes between 70 and 100% during control value determination.

The light intensity received is compared against the standard value (70%). The measuring

system generates an error signal for deviations greater than ±2%. The error message is

cleared again when the next functional check runs successfully. The control value is deter-

mined with high precision through statistical evaluation of a high number of intensity

changes.

Contamination measurement

For contamination measurement the receiver optics is slewed into a reference position

and the light intensity is measured. The measured value determined and the value defined

as factory setting are used to calculate a correction factor. This fully compensates any con-

tamination that occurs.

A value between live zero and 20 mA is output on the analog output for contamination

values < 40% ; when this value is exceeded, the “Malfunction” status is output (on the

analog output the set error current; see “Factory settings”, page 52, see “Setting the

analog outputs parameters”, page 54).

Fig. 4: Contamination and control value measurement



Receiver optics in reference position

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PRODUCT DESCRIPTION 2

2.2 Device components

Measuring system DUSTHUNTER SP100 Ex comprises the components:

● Sender/receiver unit DHSP-T

● Connection line to connect the sender/receiver unit to the control unit MCU (MCU can

be installed up to 1000 m from the device.)

● Flange with tube

● Control unit MCU

to control, evaluate and output the data of the sender/receiver unit connected via the

RS485 interface

– without purge gas supply

Fig. 5: DUSTHUNTER SP100 Ex device components (electronics unit in

version Zone 2/22)

Communication between sender/receiver unit and MCU

As standard, each sender/receiver unit is connected to one control unit via the connection

line.

USB 1.1

(RS 232)



Duct



Connection cable



Flange with tube



Power supply



Sender/receiver unit



Instrument air (onsite)



MCU-N without purge gas supply



Float-type flowmeter, pressure reducer

(onsite)



Operating and parameter program SOPAS ET



















Non-Ex atmosphere

Zone 2/22 or non-Ex atmosphere



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2 PRODUCT DESCRIPTION

2.2.1 Sender/receiver unit

The sender/receiver unit comprises two main subassemblies:

● Electronics unit

It contains the optical and electronics subassemblies to send and receive the light beam

as well as to process and evaluate the signals.

● Measuring probe

The measuring probe is available in different versions and nominal lengths as well as for

various gas temperature ranges and defines the device variant (see “Device configu-

ration”, page 26).

Data transfer to and power supply (24 V DC) from the control unit MCU run via a shielded

line with 4 wires and plug-in connector. A USB interface is available for service pur-

poses.Clean purge gas to cool the probe and keep the optical surfaces clean is fed via a

purge air connection.

The sender/receiver unit is fastened to the duct with a flange with tube (see “Device com-

ponents”, page 17).

Type code

A type code identifies the special version of the sender/receiver unit:

Sender/receiver unit example: DHSP-T X X X X EX3KT6

Maximum permissible gas temperature:

- 2: 220 °C (standard version)

- 4: 400 °C (high-temperature version)

Probe material

- V: Stainless steel

- H: Hastelloy

- M: Hastelloy probe + stainless steel protective tube

Measuring probe nominal length (NL)

- 1: 435 mm

- 2: 735 mm

Flange version

- 1: Reference circle k100

Ex certification

- EX3K: Electronics unit, version Zone 2/22

Maximum surface temperature

- according to EN 60079-0:2012

8020018/ZS56/V2-1/2018-01| SICK O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex

Subject to change without notice

PRODUCT DESCRIPTION 2

Fig. 6: Sender/receiver unit DHSP-T2VxxEX3K

Purging

The sender/receiver unit must be purged with purge gas (instrument air onsite).

On the standard version, the purge gas flows through the non-return valve in the protective

tube to the measuring opening.

On the high-temperature version, the purge gas flows through the non-return valve in the

protective tube to the measuring opening. In addition, the purge gas flows outside through

the purge openings of the protective tube. This gas cushion provides additional cooling

between the flange with tube and protective tube. Take into consideration that purge gas

consumption is higher in the high-temperature version. (see “Purging with instrument air”,

page 37)

Non-return valve

The non-return valve protects the sender/receiver unit against high temperatures and

sample gas for a short time (few minutes) should the purge gas supply fail.



Electronics unit



Protective tube



Connection for connection cable



Flange with tube



Probe head with receiver optics



Cleaning opening for sender optics



Duct wall



Sight glass



Non-return valve G1/4“



Measuring opening













NOTE:

● The distance between internal duct wall and measuring opening should be at lest

100 mm. For the high-temperature version, the distance should be between 100 mm

and 140 mm so that the measuring device does not protrude too far into the duct

and is not warmed up unnecessarily by the hot sample gas.

Distances see “Fitting the flange with tube”, page 29

NOTE: High-temperature version

To purge the measuring probe, the sender/receiver unit must be fitted in a

flange with tube with an inner diameter of 70 mm. Otherwise temperature dam-

age can occur on the sender/receiver unit when fitted without a flange with

tube.

NOTE:

Device damage is highly probable during longer operation without purge gas

supply. Therefore the sender/receiver unit must always be removed from the

duct when the purge air fails.

8020018/ZS56/V2-1/2018-01| SICKOPERATING INSTRUCTIONS | DUSTHUNTER SP100 Ex

Subject to change without notice

2 PRODUCT DESCRIPTION

2.2.2 Flange with tube

The flange with tube is available in different steel grades and dimensions (see “Flange with

tube”, page 87). Selection depends on the wall and isolation thickness of the duct wall (→

nominal length) and the duct material.

Fig. 7: Flange with tube

Material St 37 or

1.4571





Gas tempera-

ture

Sender/receiver unit nominal length (in mm)

435 735

< 150 °C

130, 240 130, 240, 500

NL (in mm)

> 150 °C

240 500

Standard version



Marking for assembly position



Securing bolt

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SICK DUSTHUNTER SP100 Ex Operating instructions

SICK DUSTHUNTER SP100 Ex Operating instructions

SICK DUSTHUNTER SP100 Ex Operating instructions

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