SICK FW100 Operating instructions

OPERATING INSTRUCTIONS

Description

Installation

Operation

Title

FW100

Dust Concentration Monitor

Document Information

Described Product

Product name: FW100

Document ID

Title: Operating Instructions FW100

Part No.: 8008905

Version: 1.1

Release: 2012-12

Manufacturer

SICK AG

Erwin-Sick-Str. 1 · 79183 Waldkirch · Germany

Phone: +49 7641 469-0

Fax: +49 7641 469-1149

E-mail: info.pa@sick.de

Place of Manufacture

SICK Engineering GmbH

Bergener Ring 27 · 01458 Ottendorf-Okrilla · Germany

Trademarks

IBM is a trademark of the International Business Machine

Corporation.

MS-DOS is a trademark of the Microsoft Corporation.

Windows is a trademark of the Microsoft Corporation.

Other product names used in this document may also be trade-

marks and are only used for identification purposes.

Original Documents

The English edition 8008905 of this document is an original docu-

ment of SICK AG.

SICK AG assumes no liability for the correctness of an unauthor-

ized translation.

Please contact the manufacturer or your local representative in

case of doubt.

Legal information

Subject to change without notice.

2 8008905 · © SICK AG

Subject to change without notice

Operating Instructions FW100

Dust Concentration Monitor

Contents

Notes on this Document ....................................................................................................7

1 Safety Instructions...............................................................................................................

8

1.1 Intended Use .............................................................................................................................8

1.2 Authorized Personnel.........................................................................................................

.....8

1.3 Safety Information and Protection Measures.................................................................8

1.3.1 Danger from Electrical Equipment ................................................................................................. 9

1.3.2 Danger due to Hot, Corrosive, or Pressurized Gases ............................................................ 9

1.3.3 Danger due to Laser Beam....................................................................................................

........... 9

1.3.4 Purge-Air Failure .............................................................................................................

....................... 9

1.3.5 Detecting and Preventing Malfunctions .................................................................................... 10

1.3.6 Shutdown, Removal from Service, and Storing System Components........................... 10

2 Product Description.......................................................................................................... 11

2.1 Features and Applications ................................................................................................. 13

2.2 Operating Principle and Measured Va

riables .............................................................. 14

2.2.1 Operating Principle ............................................................................................................................ 14

2.2.2 Response time ................................................................................................................................... 15

2.2.3 Check Cycle......................................................................................................................

.................... 15

2.3 Device Components............................................................................................................. 18

2.3.1 Transmitter/Receiver Unit .............................................................................................................. 18

2.3.2 Assembly Elements for Transmitter/Receiver Units ............................................................. 21

2.3.3 Connection Unit .............................................................................................................

.................... 22

2.3.4 External Purge-Air Unit (Optional) ........................................................................................

........ 24

2.3.5 Adapter fpr Instrument Air Supply................................................................................................ 24

2.3.6 Data Acquisition, Communication, Measured Value Output, and Display Options.... 25

2.3.7 ASC Option.................................................................................................................

........................... 26

2.3.8 Elbow Plug..................................................................................................................

........................... 26

2.3.9 Check Filter Set for FW100....................................................................................................

........ 26

2.4 Device Configuration ........................................................................................................... 27

2.5 Technical Data ..............................................................................................................

........ 28

Subject to change without notice

8008905 · © SICK AG 3

FW100 Operating Instructions

Dust Concentration Monitor

2.6 Dimensions and Order Numbers....................................................................................... 30

2.6.1 Transmitter/Receiver Unit .............................................................................................................. 30

2.6.2 Flange with Pipe.............................................................................................................

..................... 31

2.6.3 Tri-Clamp• Flange............................................................................................................................. 31

2.6.4 Connection Unit..............................................................................................................

..................... 32

2.6.5 External Purge-Air Unit (Optional) ........................................................................................

........ 33

2.6.6 Weatherproof Cover for Transmitter/Receiver Unit .............................................................. 34

3 Assembly and Installation...............................................................................................35

3.1 Project Planning .................................................................................................................... 37

3.2 Assembly .......................................................................................................................

.......... 28

3.2.1 Installing the Assembly Elements for the Transmitter/Receiver Units ........................... 38

3.2.2 Installing the Connection Unit ...............................................................................................

........ 40

3.2.3 Installing the Optional External Purge-Air Unit ........................................................................ 41

3.2.4 Fitting the Weatherproof Covers ................................................................................................

.. 42

3.3 Installation............................................................................................................................... 43

3.3.1 General Instructions and Prerequisites ....................................................................................43

3.3.2 Connection Unit .................................................................................................................................. 43

3.3.3 Connecting/Commissioning the Optional External Purge-Air Unit ................................... 45

3.3.4 Installing the Purge-Air Supply ...............................................................................................

........ 46

3.3.5 Connecting optional Devices ........................................................................................................ 48

4 Commissioning and Parameterization ........................................................................51

4.1 Basics ....................................................................................................................................... 53

4.1.1 General Notes .................................................................................................................................... 53

4.1.2 Prerequisites ..................................................................................................................

..................... 53

4.2 Installing and Connecting the Transmitter/Receiver Unit....................................... 54

4.2.1 Aligning the Transmitter/Receiver Unit....................................................................................... 54

4.2.2 Starting up the Transmitter/Receiver Unit ................................................................................ 55

4.3 Connecting the Device........................................................................................................56

4.4 Parameterization ................................................................................................................

... 57

4.4.1 Customer-Specific Parameterization........................................................................................... 57

4.4.2 Calibration for Dust Concentration Measurement................................................................. 59

4.4.3 Filter Bag Control ...........................................................................................................

..................... 60

4.4.4 Data backup ........................................................................................................................................ 62

4.4.5 Starting Standard Measuring Mode............................................................................................

63

4.5 Parameterizing Optional Devices ................................................................................... 64

4.5.1 Data Memory / Event Memory ..................................................................................................... 64

4.5.2 CAN Module ......................................................................................................................................... 67

4.5.3 Second Analog Output .......................................................................................................

.............. 68

4.5.4 LCD .........................................................................................................................

................................. 68

4.5.5 ASC Option............................................................................................................................................ 69

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Operating Instructions FW100

Dust Concentration Monitor

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

5.1 General ..................................................................................................................................... 73

5.2 Maintaining the Transmitter/Receiver Unit

.................................................................. 74

5.2.1 Cleaning the Transmitter/Receiver Unit (Externally) ............................................................. 74

5.2.2 Cleaning the Optical Boundary Surfaces................................................................................... 74

5.3 Maintaining the Purge-Air Supply .................................................................................... 76

5.3.1 Connection Unit with Integrated Purge-Air Supply ................................................................. 77

5.3.2 External Purge-Air Unit (Optional) ................................................................................................. 78

5.4 Removal from Service.......................................................................................................... 79

6 Troubleshooting................................................................................................................. 81

6.1 Malfunctions........................................................................................................................... 83

6.2 Warnings and Malfunction Messages .......................................................................... 84

6.2.1 Warnings................................................................................................................................................ 84

6.2.2 Malfunction Messages.......................................................................................................

.............. 85

6.2.3 Other Malfunctions and Abnormal Behavior............................................................................ 87

6.3 Removal of Malfunctions.................................................................................................... 88

6.3.1 Adjusting the Laser Beam............................................................................................................... 88

6.3.2 Checking the Laser Beam for free Transit (FW101) ............................................................ 89

6.3.3 Checking the FW101 Receiver Optics for Correct Movement ......................................... 90

6.4 Test and Diagnosis Options............................................................................................... 91

6.4.1 Testing the Signal Output ................................................................................................................ 91

6.4.2 Check Cycle......................................................................................................................

.................... 91

6.4.3 Linearity Check.................................................................................................................................... 92

7 Repairs.................................................................................................................................. 93

7.1 Transmitter/Receiver Unit.................................................................................................. 96

7.1.1 Replacing the Cover and/or Protection tube (FW101)........................................................ 96

7.1.2 Replacing the Sintered Metall Flter (FW101).......................................................................... 96

7.1.3 Replacing the Entire T/R Unit Connector................................................................................... 96

7.1.4 Checking/Replacing the Battery for the Transmitter/Receiver Unit

................................ 98

7.2 Connection Unit..................................................................................................................... 99

7.2.1 Connection Unit without Purge-Air Supply................................................................................. 99

7.2.2 Connection Unit with Integrated Purge-Air Supply ...............................................................101

7.2.3 Replacing the LCD Module .....................................................................................................

......103

Subject to change without notice

8008905 · © SICK AG 5

FW100 Operating Instructions

Dust Concentration Monitor

8 Parts Overview.................................................................................................................105

8.1 Standard Components.......................................................................................................107

8.1.1 Transmitter/Receiver Units.......................................................................................................... 108

8.1.2 Assembly Elements .............................................................................................................

........... 108

8.1.3 Connection Units............................................................................................................

.................. 109

8.1.4 External Purge-Air Units (Optional) ........................................................................................... 109

8.1.5 Miscellaneous.................................................................................................................

.................. 109

8.2 Options ...................................................................................................................................110

8.2.1 Transmitter/Receiver Units.......................................................................................................... 110

8.2.2 Connection Units.............................................................................................................................. 110

8.2.3 Weatherproof Covers ........................................................................................................

........... 111

8.2.4 Accessories for Testing the Device..........................................................................................

111

8.2.5 Miscellaneous .................................................................................................................................. 111

8.3 Consumable Parts for 2-Year Operation......................................................................111

8.3.1 Transmitter/Receiver Units.......................................................................................................... 111

8.3.2 Connection Unit with Internal Purge-Air Supply.................................................................... 111

8.3.2 External Purge-Air Unit (Optional) .........................................................................................

..... 111

8.4 Spare Parts............................................................................................................................112

8.4.1 Transmitter/Receiver Unit ............................................................................................................ 112

8.4.2 Connection Unit..............................................................................................................

.................. 112

8.4.3 Miscellaneous .................................................................................................................................. 112

9 Appendix............................................................................................................................113

9.1 Standard Settings for the FW100..................................................................................115

9.1.1 FW101................................................................................................................................................. 115

9.1.2 FW102.........................................................................................................................

........................ 116

9.2 Password ...............................................................................................................................117

6 8008905 · © SICK AG

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Operating Instructions FW100

Dust Concentration Monitor

Notes On This Document

These operating instructions describe the functioning of the FW100 opto electronic dust

concentartion monitor in both variations FW101 and FW102. They serve for understanding

the device function and contain general information on planning, assembly, installation,

commissioning, maintenance, and troubleshooting. The description of the available device

components is intended to help you during the planning phase to determine the optimum

configuration for the particular application.

These operating instructions only cover standard ap

plications that conform to the technical

data listed. Your SICK representative will be glad to provide you with additional information

and support for special applications. We strongly advise that you contact a SICK specialist

for consultation on special applications.

Note • Always

read these operating instructions carefully before commencing work. The safety

instructions and warnings must be followed at all times.

• Some syst

em components (such as the side-channel compressor of the purge-air units)

are supplied with separate user information. This information must also be read carefully.

Symbols used in this document

For quick access and reasons of clarity, important safety inform

ation is specially highlighted

in these operating instructions. They are provided at the relevant points in the chapters.

Note Provides information on the features of the device o

r system, along with additional tips.

ATTENTION

Important

Indicates a risk of damage to the device or system components and potential functional

impairments.

DANGER

Warning

Identifies potential danger for personnel, particularly due to electrical equipment or as a

result of incorrect handling of the device or system components. These warnings are

intended to protect you from (fatal) injuries.

Always read warnings carefully and follow them at all times!

Subject to change without notice

8008905 · © SICK AG 7

FW100 Operating Instructions

Dust Concentration Monitor

Safety Instructions

1 Safety Instructions

1.1 Intended Use

The FW100 measuring system is used for measuring the dust concentration in exhaust

gases and waste air ducts. It must only be operated in the manner intended by the

manufacturer and in accordance with the following information. In particular, it is important

that:

• T

he system is operated in accordance with the technical data and specifications

regarding assembly, connection, ambient, and operating conditions (see the

documentation supplied, the order documents, device documents, and rating plates)

• All o

f the measures required to maintain the device, for example, for maintenance and

inspection requirements, are provided.

1.2 Authorized Personnel

Those responsible for personal safety must ensure that:

• All wo

rk on the measuring system is carried out by qualified personnel and checked by

the experts responsible.

These persons must be qualified by virtue

of their expertise (training, education,

experience) or understanding of the relevant standards, specifications, accident

prevention regulations, and properties of the system. It is crucial that these persons be

able to identify and avoid potential hazards in good time.

Technical experts are those persons defined in D

IN VDE 0105, IEC 364, or other directly

equivalent standards.

• Th

ese persons must be familiar with the hazards posed during operation, such as those

caused by hot, toxic, or pressurized gases, gas/liquid mixtures, or other media, and must

have received special training on how to operate the measuring system.

1.3 General Safety Information and Protection Measures

Handling or using the device incorrectly can result in personal injury or material damage.

Read this chapter carefully and ensure that you observe the safety precautions for the

FW100 at all times. Always observe the warnings provided in these operating instructions.

The following applies at all times:

• T

he relevant legal stipulations and associated technical regulations must be observed

when preparing and carrying out work on the installation.

• All work must be car

ried out in accordance with the local, system-specific conditions and

with due consideration paid to the operating dangers and specifications.

• T

he operating instructions for the measuring system and plant documentation must be

available on site. The instructions for preventing danger and damage contained in these

documents must be observed at all times.

• Suitable

safety equipment and personal protection measures must be available in

accordance with the potential hazard and must be used by the personnel.

8 8008905 · © SICK AG

Subject to change without notice

Operating Instructions FW100

Dust Concentration Monitor

Safety Instructions

1.3.1 Danger from Electrical Equipment

The FW100 measuring system is an item of electrical equipment designed for use in

industrial po

wer installations. When working on power connections or on live components,

make sure that the power supply is switched off. If necessary, replace shock protection

measures before reconnecting the power supply.

1.3.2 Danger Due to Hot, Corrosive, or Pressurized Gases

The transmitter/receiver unit is mounted directly on the gas-carrying

duct. In installations

with a low hazard potential (no risk of injury, ambient pressure, low temperatures, no risk of

explosion), this unit can be installed and removed while the installation is in operation,

provided that the applicable specifications and safety regulations for the installation are

adhered to and all necessary and suitable protective measures are taken.

DANGER

Warning

Installations with toxic gases, high temperatures, high pressure, or risk of explosion must be

shutdown before these components are installed or removed!

1.3.3 Danger Due to Laser Beam

WARNING

The FW100 uses a laser with laser class 2. To prevent blinding:

‡ Never look directly into the laser beam.

‡ Do not direct the FW100 laser beam towards people.

‡ Take into account reflections of the laser beam.

1.3.4 Purge-Air Failure

The purge-air supply protects the transmitter/receiver unit fitt

ed in the duct against hot or

corrosive gases. It must remain switched on when the plant is shut down. A purge-air supply

failure can quickly destroy the transmitter/receiver unit. For this reason, the operator must

ensure that:

ATTENTION

‡ The purge-air supply operates reliably and without interruption.

‡ A failure is detected immediately (for e

xample, by using pressure monitors).

‡ The transmitter/receiver unit is rem

oved from the duct in the event of a purge-air failure

and the duct openings are covered (for example, with a flange cover).

Subject to change without notice

8008905 · © SICK AG 9

FW100 Operating Instructions

Dust Concentration Monitor

Safety Instructions

1.3.5 Detecting and Preventing Malfunctions

Any deviations from normal operation must be

regarded as a serious indication of a

functional impairment. These include:

‡ Significant drifts in the measurement results

‡ A rise in power consumption

‡ A rise in system component temperature

‡ Actuating of monitoring devices

‡ Unusually strong vibrations / unusual operating noise from a purge-air fan

‡ Smoke or unusual odors.

1.3.6 Shutdown, Removal from Service, and Storing System Components

The FW100 measuring system must remain switche

d on when the plant is shut down. The

purge-air supply must never be switched off.

If the FW100 operating voltage is switched off for a prolonged period (m

ore than 3 days),

all the device components must be disassembled and stored in a dry, dust-free location.

10 8008905 · © SICK AG

Subject to change without notice

Features and Applications

Operating Principle

Device Components

Device Configuration

Technical Data

Dimensions and Part Numbers

FW100

Dust Concentration Monitor

Product Description

Operating Instructions FW100

Dust Concentration Monitor

Product Description

2 Product Description

2.1 Features and Applications

The FW100 series from SICK is designed to conduct continuous measurements of very low

(0.1 mg/m

3

) to medium (200 mg/m

3

and higher) dust concentrations in gases (temperature

above dew point). These measuring devices can be used in a wide range of application and

feature by low installation effort and simple handling.

System features and advantages

• High re

solution and measuring speed

• Me

asuring of the dust content independent of height and fluctuations of the gas velocity

• No

influence of moisture or charge of the particles

• De

fined zero point

• Ea

sy to install, no mechanical adjustment required

• No

calibration to dust-free measuring path required

• Si

mple operation and configuration with user-friendly software

• Aut

omatic check cycle

• Aut

omatic compensation of contaminations (type FW101)

• Minimum maintenance

requirements.

Application range

Applications ‡ In pure gas, downstream of electrostatic precipitators

– Continuous measurement and monitoring of du

st concentrations

– Protection of flue gas desulfurization plants

‡ In pure gas, downstream of modern fabric filters

– Monitoring, detection, and identification of defective filters and bags

– Prevention of the release of expensive production materials and toxic cont

ents in

continuous processes

‡ For monitoring and/or closed-loop control purp

oses in exhaust/intake air systems

Sectors • Power supply:

Power stations, heating systems

• Waste

disposal: Refuse incineration plants

• P

rocess engineering: Grinding and metering plants

• M

etal processing: Steel and aluminum processing

• F

oodstuff industry: Filling bulk materials

• Brake linings and Et

ernit production

Compliance The measurement system is approved according to F

ederal German Pollution Control Act

(13th, 17th and 27th Implementing Ordinance) and German Clean Air Regulations, an-

nounced in GMBL 2000, no. 60, pg. 1192.

Subject to change without notice

8008905 · © SICK AG 13

FW100 Operating Instructions

Dust Concentration Monitor

Product Description

2.2 Operating Principle

2.2.1 Operating Principle

The FW100 operates according to the scattered

light measurement principle (forward

scattering). Since it is extremely sensitive, this principle is particularly suitable for measuring

very small particle concentrations.

A laser diode directs a beam of modulated light i

n the visible range (wavelength approx.

650 nm) at the dust particles in the gas flow. The light scattered by the particles is recorded

by a highly sensitive detector which is positioned in an angle of approx. 15 ° to the beam

axis. The received signal is electrically amplified and supplied to the measuring channel of a

microprocessor as the central part of the measuring, control and evaluation electronics. The

point of intersection between the transmitted beam and the receiver aperture defines the

measuring volume in the gas duct.

The transmitting power of the laser diode is contin

uously controlled by measuring a part of

the transmitted intensity with a microchip in the laser diode. This received signal is also

amplified and supplied to the monitor channel of the microprocessor. In this way lowest

brightness changes of the transmitted laser beam can be detected and take into account

in the determination of the output signal.

Fig. 2.1: FW100 Operating principle

The measured scattered light intensity is proportional to the dust concentration. Since the

scattered light intensity doesn't only depend on the particle number (dust content) but also

on the visual qualities of the particles, the FW100 must be calibrated with a gravimetric

comparison measurement to secure an exact measuring of the dust concentration. The

calibration coefficients determined at this measurement are entered in FW100 (see

Section. 4.4.2) in the form:

cc2: square

c

c1: linear

cc0: absolute

c=cc2

· SI² + cc1 · SI + cc0 c=Dust concentration

SI = Scattered light intensity

cc = calibration coefficiant

The manufacturer settings are cc2

= 0, cc1 = 1, cc0 = 0.

Transmitter/receiver unit

Laser diode

Gas duct

Detector

Measuring volume

14 8008905 · © SICK AG

Subject to change without notice

Operating Instructions FW100

Dust Concentration Monitor

Product Description

2.2.2 Response Time

The response time (t

90

) is the time taken by the FW100 to reach 90% of the end value after

a sudden change in the measured value (see Fig. 2.2). The t

90

time can be set to any value

between 0.1 and 600 s. Setting a higher t

90

time provides better attenuation of transient

fluctuations in the measured value and malfunctions to produce a "smoother" output signal.

Fig. 2.2: Response time

2.2.3 Check Cycle

The check cycle is used for automatically checking that the transm

itter/receiver is

functioning properly. The check cycle can be triggered automatically at fixed intervals

(setting in MEPA-FW, see Section 4.4.1) and/or manually (1 min after the power supply has

been connected, or the system has been switched fr

om "Maintenance" to "Measure" in

MEPA-FW).

The check values can be given out at the analog output (see Section 4.4

.1).

Notes • When the check values are bei

ng determined, the value last measured is given out at the

analog output.

• If th

e check values are not given out at the analog output, the current measured value is

given out once the check value has been determined.

• Th

e "Maintenance" relay is activated to signal that a check cycle is in process.

• With t

he LCD option, a check cycle is indicated with a plain-text "check cycle" display and

as a status output at relay 6.

• Aut

omatic check cycles are carried out periodically from the parameterized time interval.

A re-start begins if the interval setting is changed or 1 min after:

– Change from „Maintenance“ to „Measure“ mode

– Reset (power off/on)

– Switch-on of the power voltage after power failure.

Measured

value

in %

Measured value with t

90

response time

90 % of the peak

Process change

t

90

t in s

100

98

96

94

92

90

88

86

84

10 20 30 40 50 60 70 80 90 100

Subject to change without notice

8008905 · © SICK AG 15

FW100 Operating Instructions

Dust Concentration Monitor

Product Description

Check cycle FW101

If a check cyle is carried out, inadmissible dev

iations appearing by the normal behavior are

signaled as a malfunction. If a malfunction is present, you can trigger a check cycle manually

to locate the cause of the problem (see Chapter 6).

The check cycle lasts approx. 310 s and comprises:

The values are only given

ou

t to the analog output in

case of activation (see

Section 4.4.1).

• 40 s co

ntamination measurement of the optical boundary surfaces, zero and check value

• 90 s output

of the contamination value

• 90 s output o

f the check value

• 90 s output

of the zero value.

Fig. 2.3: FW101 check cycle output on plotter

Contamination

Measurement

In order to measure the contamination on the optical boundary surfaces, the FW101 moves

the receiver optics mechanically to a reference position. As a result, the optics measure the

light emitted by the laser diode directly. The intensity value measured during the movement

is compared with the factory settings to calculate a correction factor. In this way, the FW101

can fully compensate for any contamination levels.

If the contamination value is lower than 70 %, a analog value is given out

during the check

cycle in a range between Live Zero and 20 mA and proportional to the contamination value

(device status „Operation“). For contamination values higher than 70 % always Live Zero is

given out (device status „Malfunction“).

Fig. 2.4: FW101 contamination and check value measurement

Check Value

Measurement

(Span test)

Following to the contamination measurement, the check

value is determined (receiver

optics is in reference position). Once a reference measurement has been carried out with a

light intensity of 100 %, the FW101 reduces the intensity of the laser diode to 70 % and

compares the value measured by the receiver with the expected value. If these two value

deviate more than ±2 %, the device generates an error signal. The error message is lifted

a

gain if the next check cycle passes successfully.

Degree of

contamination

Check value (70 % value, span)

Zero value (Live Zero)

End

check cycle

Start

Check cyclecontamination

output

Zero value

output

Paper feed

Check value

output

Receiver optics in reference position

16 8008905 · © SICK AG

Subject to change without notice

Operating Instructions FW100

Dust Concentration Monitor

Product Description

Zero Value

Measurement

In order to monitor the zero point, the FW101 deactivates the laser diode, and the reception

signal must also be zero. In this way, drifts or zero-point eviations in the entire system (e.g.

caused by an electronic defect) can be reliably detected. If the “zero-value” deviation is out-

side the specified range, an error signal is generated.

Check cycle FW102

At the FW102, the measuring linearity is checked during a check cy

cle. The check cycle lasts

approx. 200 s and comprises a:

• 20 s measur

ement of zero and check value

The values are only given

out to the

analog output in

case of activation (see

Section 4.4.1).

• 90 s outp

ut of the check value

• 90 s outp

ut of the zero value.

Fig. 2.5: FW102 check cycle output on plotter

Check Value

Measurement

(Span test)

The FW102 measures the check point with the receiv

er optics in the measuring position.

During this time, the light intensity changes between 70 and 100%. Thanks to a large

number of intensity shifts, which are evaluated statistically, the FW102 enables the check

point to be measured with pinpoint accuracy (prerequisite: dust contents

> approx. 2 mg/

m³, otherwise the theoretically calculated 70 % value is given out.

The check value is evaluated in the same way as with the FW101 (error messages in case

of

deviations of more than ±2 %).

Zero Value

Measur

ement

The FW102 carries out a zero-point measurement in the same way with the FW101.

Start

Check cycle

Check value (70 % value, span)

Zero value

output

Output

check value

Zero value (Live Zero)

End

check cycle

Paper feed

Subject to change without notice

FW100 Operating Instructions

Dust Concentration Monitor

Product Description

2.3 Device Components

Device Variants

• F

W101 for use in gas ducts with a diameter greater than 250 mm.

The device is mounted on the duct using a fl

ange with tube.

• F

W102 for use in gas ducts with a diameter greater than 150 mm.

The FW102 can be mounted on a flange wi

th fitting (Tri-Clamp®) or a 1” sleeve on the

duct.

FW100 Components

Possible device configurations see section 2.

4.

• T

ransmitter/receiver unit

• F

lange with pipe / flange with fitting / 1” sleeve

• Connect

ion unit

– with integrated purge-air supply (for internal duct pre

ssure -70 ... +10 mbar)

– without purge-air supply. The following is, therefore, required:

• E

xternal purge-air supply (for internal duct pressure -70 ... +70 mbar)

Fig. 2.6 Overview of the FW100 components

Connection unit with

purge-air supply

Connection

unit without

purge-air

supply

External purge-air

unit option

Transmitter/receiver unit

Purge-air hose

Signal cable

MEPA-FW

operating and

configuration

program

Flange with pipe

RS 232

Power supply

Duct

Optional

Subject to change without notice

Operating Instructions FW100

Dust Concentration Monitor

Product Description

2.3.1 Transmitter/Receiver Unit

The transmitter/receiver unit consists o

f two main modules:

• E

lectronic unit

It contains the optical and electronic modules for

transmitting and receiving the light be-

am, as well as processing and evalu

ating signals.

• Meas

uring probe

The measuring probe is designed in different forms,

nominal lengths and for different gas

temperature ranges and defined the device variant.

The transmitter/receiver unit is connected to t

he connection unit using a 16-pole cable with

a connector, and has a 24 V d.c. power supply. Clean purging air is supplied to a purge-air

nozzle to cool the probe and keep clean the optical boundary surfaces.

FWSE101 Transmitter/Receicer Unit

The transmitter/receiver units are availabl

e in the following versions:

Fig. 2.7: FWSE101 transmitter/receicer unit nominal length 435 / 735 mm

Nominal length

NL in mm

max. Gas

temperature

in °C

Protection tube Use for

Length L in mm Material

435

220

300

Stainless steel

Hastelloy Corrosive gases

400 Stainless steel

735

220

600

Stainless steel

Hastelloy Corrosive gases

400 Stainless steel

1035

220

900

Stainless steel Wall and isolation thick-

ness up to 720 mm

400 Stainless steel

1335

220

1200

Stainless steel Wall and isolation thick-

ness up to 1020 mm

400 Stainless steel

Electronic unit

Probe head

with receiver

optics

Purge-air nozzle

Purge-air outlets at high temperature

version (HT) up to 400 °C

Cleaning opening for transmitter optics

NL

Connector for signal cable

L

(Flange with pipe)

(Duct wall)

Protection tube

Measuring

opening

Subject to change without notice

FW100 Operating Instructions

Dust Concentration Monitor

Product Description

Fig. 2.8 FWSE101 transmitter/receicer unit nominal length 1035 / 1335 mm

Notes • Transmitter/receiver units with nominal length > 735 mm are exclusive scheduled for the

installation in thick-wall or double walled ducts with wall and isolation thickness of approx.

400 mm to 1020 mm.

• T

he distance between inside duct wall and measuring opening may be max. 450 mm

(see Fig. 2.8).

FWSE102 Transmitter/Receicer Unit

The following versions are available:

Fig. 2.9: FWSE102 1“ transmitter/receicer unit (NL 280 mm is shown)

Cleaning opening for transmitter optics

NL

(485 mm)

Laser with drive electronics in housing

(must be within the channel wall/isolation)

max. 450 mm

(Duct wall/isolation)

L

Nominal length NL

in mm

Mounting type Duct diameter

in mm

180

1“ sleeve

> 150

Flange with fitting (Tri-Clamp®)

280

1“ sleeve

Flange with fitting (Tri-Clamp®)

Purge-air nozzle

Connector for signal cable

Cleaning opening for transmitter optics

NL

Electronic unit Measuring probe

Probe head with

receiver optics

1“ thread

Subject to change without notice

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SICK FW100 Operating instructions

SICK FW100 Operating instructions

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