SICK GM700 User manual

MMM
I
MMMOPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
GM700
TDLS Analyzer for NH3, HF or HCI
Version with Measuring Probe
Installation, Operation, Maintenance

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Subject to change without notice
Described Product
Product name: GM700
Manufacturer
SICK AG
Erwin-Sick-Str. 1 · 79183 Waldkirch · Germany
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Place of Manufacture
SICK AG
Nimburger Str. 11 · D-79276 Reute · Germany
Legal Information
This work is protected by copyright. Any rights derived from the copyright shall be
reserved for SICK AG. 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 AG.
The trademarks stated in this document are the property of their respective owner.
© SICK AG. All rights reserved.
Original document
This document is an original document of SICK AG.

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Warning Symbols
Warning Levels / 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 personal injury or property damage.
NOTICE
Hazard which could result in property damage.
Information symbols
IMMEDIATE HAZARD
of severe injuries or death
Hazard (general)
Please consult the documentation
Hazard by corrosive substances
Hazard by voltage
Hazard by unhealthy substances
Hazard by toxic substances
Hazard by laser radiation
Important technical information for this
product
Important information on electric or
electronic functions
Nice to know
Supplementary information
Link to information at another place

CONTENTS
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1 Safety Information..................................................................................... 8
1.1 Main hazards .................................................................................................. 8
1.1.1 Electrical safety .............................................................................. 8
1.1.2 Grounding the device ..................................................................... 8
1.1.3 Protection against hazards through gases .................................. 9
1.1.4 Protection against laser radiation ............................................... 10
1.1.5 Behavior during purge air failure................................................. 12
1.2 Intended use ................................................................................................. 12
1.2.1 Purpose of the device .................................................................. 12
1.3 Responsibility of user ................................................................................... 12
1.3.1 Disposing of device parts harmful to the environment ............. 13
2 Product Overview..................................................................................... 14
2.1 Product identification .................................................................................. 14
2.2 GM700 system, measuring probe version, layout ...................................... 15
2.2.1 Measuring probe in detail ............................................................ 17
2.2.1.1 GPP measuring probe............................................... 17
2.2.1.2 GMP probe with open measuring gap ..................... 18
2.2.1.3 GPP gas diffusion probe in dry or wet version......... 19
2.2.1.4 GM700 measuring probes in comparison............... 20
2.2.1.5 Special versions........................................................ 20
2.3 GM700 options and accessories ................................................................. 20
2.4 Measuring principle ...................................................................................... 21
2.4.1 Reference cuvette for wavelength stabilization.......................... 21
2.4.2 Signal evaluation.......................................................................... 21
3 Project planning....................................................................................... 22
3.1 Work steps from system selection to start-up............................................. 22
3.2 Project Planning Checklist............................................................................ 23
3.3 Initial onsite installation ............................................................................... 25
3.3.1 Installation preparation at the measuring point ......................... 25
3.3.2 Uncovering the duct ..................................................................... 26
3.3.3 Installing the flange with tube ..................................................... 26
3.3.3.1 Performing installation ............................................. 27
3.3.4 Installation preparation for the purge air unit (for GMP probe) . 27
3.3.5 Duct insulation ............................................................................. 28
3.3.6 Installation preparation for the evaluation unit .......................... 28
3.4 Preparations for electrical installation ........................................................ 29
3.4.1 Signal and power supply cables .................................................. 29
3.4.2 CAN bus wiring ............................................................................. 31
4 Installation................................................................................................ 32
4.1 Preparations ................................................................................................. 32
4.1.1 Checking the scope of delivery .................................................... 32
4.1.2 Installation prerequisites ............................................................. 32
Contents

CONTENTS
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4.2 Fitting system components...........................................................................33
4.2.1 Information on the SR-unit and measuring probe.......................33
4.3 Installing the purge air units (for GMP probe) .............................................33
4.3.1 Terminal box with 24 V power supply unit (option) .....................33
4.4 Installing the evaluation unit ........................................................................34
4.4.1 Installing the evaluation unit – sheet metal enclosure version .34
4.4.2 Installing the evaluation unit – cast-metal enclosure version....35
4.5 Electrical connection of system components ..............................................36
4.5.1 CAN bus wiring options.................................................................36
4.5.2 Electrical connection in the evaluation unit EvU.........................37
5 Operation ..................................................................................................40
5.1 User qualifications ........................................................................................40
5.2 Operating elements.......................................................................................40
5.2.1 Menu overview ..............................................................................41
6 Start-up......................................................................................................44
6.1 Preparations ..................................................................................................44
6.1.1 Required qualifications and further prerequisites ......................44
6.1.2 Prerequisites for successful start-up: ..........................................44
6.1.3 Tools and equipment....................................................................45
6.1.4 Start-up steps overview ................................................................45
6.1.5 Checking the scope of delivery ....................................................45
6.1.6 Removing the transport safety devices .......................................46
6.1.7 Installing the SR-unit on the measuring probe............................46
6.1.8 Connecting connections on the sender/receiver unit.................48
6.1.9 Optical alignment..........................................................................48
6.1.9.1 Optical alignment (for device version for NH3 and
HF measurement) .....................................................48
6.1.9.2 Optical alignment of device version for HCl
measurement ...........................................................50
6.1.10 Zero adjust ....................................................................................50
6.1.10.1 Types of zero point checks .......................................50
6.2 Fitting the weatherproof cover for the SR-unit (option)...............................52
6.2.1 Evaluation unit start-up ................................................................54
6.2.2 Operating states ...........................................................................55
6.2.2.1 Gas connections on the GPP measuring probe for
zero gas and/or test gas...........................................55
6.2.3 Starting operating mode...............................................................56
6.2.3.1 Selecting the ambient temperature .........................57
7 Maintenance.............................................................................................58
7.1 Safety.............................................................................................................58
7.2 Maintenance intervals ..................................................................................58
7.2.1 Maintenance protocol...................................................................58
7.3 Preparation and general preparatory work ..................................................58

CONTENTS
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7.4 Maintenance work on the SR-unit ............................................................... 59
7.4.1 Visual inspection and enclosure cleaning................................... 59
7.4.2 Cleaning the front window on the SR-unit .................................. 59
7.5 Evaluation unit (EvU) .................................................................................... 60
7.6 Controlling and tracking the laser working point during measurement..... 61
7.6.0.1 Selecting the ambient temperature range ............. 61
7.6.1 Filter box measurement to check the measuring channels for
NH3, HF or HCl .............................................................................. 61
7.6.2 Determining the necessary test gas concentration .................... 62
7.6.3 Installing the filter box ................................................................. 63
7.6.4 Carry out filter box measurement................................................ 64
7.7 Checking the gas analyzer with test cell GMK10........................................ 65
7.7.1 Installation of the GM700 components with the test cell
GMK10.......................................................................................... 66
7.7.2 Carrying out measurement .......................................................... 66
8 Troubleshooting and Clearing Malfunctions........................................ 69
8.1 Malfunction categories/possible effects..................................................... 69
8.2 Purge air failure ............................................................................................ 69
8.3 Integrated monitoring and diagnosis system .............................................. 69
8.3.1 Display and retrieval of messages on the evaluation unit ......... 70
8.3.2 Troubleshooting and clearing malfunctions, evaluation unit ..... 71
8.3.3 Error messages ............................................................................ 72
8.3.4 Warning messages ....................................................................... 74
8.3.5 Further tips on troubleshooting ................................................... 75
9 Technical Data, Expendable and Spare Parts ..................................... 76
9.1 Technical Data GM700 measuring system probe version.......................... 76
9.2 Dimension drawing ....................................................................................... 81
9.2.1 GM700 receiver unit dimensions ................................................ 81
9.2.2 Dimensions of open measuring probe - GMP ............................. 82
9.2.3 Dimensions of the GPP measuring probe ................................... 83
9.2.4 Dimensions evaluation unit GM700: Sheet steel enclosure...... 84
9.2.5 Dimensions evaluation unit GM700: Cast metal enclosure ...... 84
9.2.6 Connection unit GM700 dimension (Can bus option) ................ 85
9.2.7 Weatherproof cover dimensions.................................................. 85
9.2.8 Flange with tube dimensions....................................................... 85
9.3 Accessories, expendable and spare parts................................................... 86
9.3.1 Consumable parts for 2-years operation..................................... 86
9.3.2 Spare parts for the sender/receiver unit .................................... 86
9.3.3 Spare parts for the measuring probe .......................................... 87
9.3.4 Spare parts for the evaluation unit ............................................. 87
9.3.5 Fixing accessories ........................................................................ 88
9.3.6 Spare parts assignment for sender/receiver unit ...................... 89

CONTENTS
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10 Annex.........................................................................................................93
10.1 User information “Laser safety” ...................................................................93
10.2 Positioning the probe reflector when the probe must be realigned ...........95
11 Index ..........................................................................................................98

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1SAFETY INFORMATION
1 Safety Information
1.1 Main hazards
Important safety information in short form.
Operational safety
1.1.1 Electrical safety
1.1.2 Grounding the device
DANGER: Hazards through defective device
The GM700 is likely to be unsafe when it:
●Has been penetrated by moisture.
●Has been stored or operated under irregular conditions.
When safe operation is no longer possible:
▸Put the GM700 out of operation, separate all connections from the power supply
and secure against unauthorized start-up.
WARNING: Hot surfaces when enclosure open
Pay attention to hot surfaces of the measuring cell when opening the GM700
enclosure.
WARNING: Hazard by voltage
▸Pay careful attention to power supply connections.
▸Do not interrupt protective conductor connections.
WARNING: Endangerment of electrical safety by not switching the power
supply off during installation and maintenance work.
An electrical accident can occur during installation and maintenance work
when the power supply to the device and/or lines is not switched off using a
disconnector switch/circuit breaker.
▸Before starting the work, ensure the power supply can be switched off using
a power isolating switch/circuit breaker in accordance with DIN EN 61010.
▸Make sure the disconnector 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.
▸The power supply may only be switched on again after work completion or
for test purposes by persons carrying out the work under consideration of
the valid safety regulations
WARNING: Endangerment of electrical safety through power cable with
incorrect rating
When a removable power cable is used, electrical accidents can occur when
the specifications are not fully observed.
▸Always observe the exact specifications in the Operating Instructions
(Technical Data Section) when replacing a removable power cable.
CAUTION: Equipment damage through erroneous or missing grounding
During installation and maintenance work, it must be ensured that the
protective grounding to the devices and/or lines involved is effective in accor-
dance with EN 61010-1.

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SAFETY INFORMATION 1
1.1.3 Protection against hazards through gases
WARNING: Hot and/or aggressive sample gases
▸Wear suitable protective clothing and mask when using hot and/or aggressive
sample gases and/or with high dust loads.
▸Never open the enclosure or switch off the purge air feed without taking appropriate
protective measures when the duct is pressurized.
WARNING: Toxic and caustic substances in parts in contact with sample gas
●Depending on the sample gas composition, parts of the GM700 in contact with
sample gas can contain toxic or caustic substances.
●When fitted in the measuring device, the reference cuvette contains the respective
gases to be measured. These gases must not escape.
Special care must be taken with the GME700-2 (HF) . This cell not only contains
gaseous HF but also a certain amount of liquid (max. 0.1 g HF for 8 cm cell). HF /
hydrofluoric acid is extremely toxic and caustic. It is imperative to avoid inhaling or
skin contact at all times. Particularly when there are indications of leaks or defects,
wear protective clothing (protective goggles, latex gloves) and carry out work in a well
ventilated room/area. Never open the cuvette under any circumstances. Check
replacement cuvettes for any possible transport damage.
●Handle with care when test gases are used:
▸When handling HF, keep an HF emergency set (including calcium gluconate gel)
available.
▸Before working on the gas path, ask the operator which gases have been applied to
the GM700.
▸Ask the operator whether, and how, the gas path of the GM700 has been cleaned.
▸If necessary, clean the gas path with a suitable method.
▸In case of doubt, take appropriate protective measures before working on the gas
path: Ensure adequate ventilation at the workplace or work under a vent. Wear
protective goggles or a safety mask, protective gloves and acid-proof protective
clothes.
WARNING: Risk of fire through hot gas escaping in installations with
overpressure conditions
On installations with overpressure, the purge air hose can be severely damaged by
escaping hot gas and can catch fire depending on the temperature.
On plants with overpressure as well as gas temperatures over 200°C:
▸Ensure reverse flow is prevented by fitting a (trip) flap or a valve.
▸Regularly check the functionality of the reverse flow safeguard.

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1SAFETY INFORMATION
1.1.4 Protection against laser radiation
The GM700 laser warning sign is located on the sender/receiver unit.
Fig. 1: Laser warning sign (for HF) on the GM700 sender/receiver unit
Fig. 2: Laser sign for NH3measurement
WARNING: Eye injuries possible due to laser radiation
 Observe all relevant information in these Operating Instructions.
WARNING: Deviations of EN60825-1:2014-08 “Laser safety” from the
Directive 2006/25/EC
Due to the implemented health and safety regulation for artificial optical radiation
concerning the Directive, deviations of EN60825-1:2014-08 “Laser safety” from
Directive 2006/25/EC have occurred.
▸Always observe the user information in the Annex of these Operating Instructions!
“User information “Laser safety””, page 93.
Laser outlet
Laser warning sign

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SAFETY INFORMATION 1
Fig. 3: Laser sign for HCI measurement
The invisible laser beam within the SR-unit is not accessible when fitted. There is no risk for
the human eye when looking into the optic visor on the right side of the SR-unit.
Laser capacity
The wavelength of the laser varies for the respective measuring components (NH3, HF,
HCl).
The maximum laser output at the optical interface depends on the respective measuring
component and is shown on the laser warning sign.
–HF:
“Laser warning sign (for HF) on the GM700 sender/receiver unit”, page 10.
–NH
3: “Laser sign for NH3 measurement”, page 10.
– HCI: “Laser sign for HCI measurement”, page 11.
CAUTION: Observe the following for the GM700 HF version:
As the limit values of laser class 1 of the IEC 60825-1:2014-5 are neither exceeded
in single case malfunctions nor normal operation under consideration of the service
and measuring state, the device is classified as laser class 1.
Requirement: Use of device software 9105060_YEK0 or newer.
CAUTION: Important information for safe handling of the GM700 SR-unit HF
version
For device software versions older than 9105060_YEK0, a dangerous laser
radiation might occur.
▸Laser class 1 of the IEC 60825-1:2014-5: Only use device software
9105060_YEK0 or a newer software version.
CAUTION: Important information for safe handling of the GM700 SR-unit
(all versions)
▸Never look directly into the exit lens when opening the SR-unit.
▸Always wear laser goggles or switch the device off during maintenance work.
▸Observe valid national limit values and respective standards for work safety.
The emitted radiation is harmless to human skin.

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1SAFETY INFORMATION
1.1.5 Behavior during purge air failure
Depending on the configuration, the GM700 measuring system requires a purge air supply.
Failure of the purge air supply demands measures to be taken immediately or within a
short time, depending on the installation conditions, to protect the measuring system.
1.2 Intended use
1.2.1 Purpose of the device
The GM700 analyzer measures the concentration of the sample gas component, e.g. HF,
NH3 or HCl in a gas mixture (sample gas). For this purpose, the GM700 analyzer is
assembled at the measuring location and measures directly onsite (in-situ measurement).
!▸ Do not use the device to expose persons to radiation.
1.3 Responsibility of user
Designated user
The GM700 may be operated by competent persons only who, based on their device-
specific training and knowledge of the device as well as knowledge of the relevant
regulations, can assess the tasks given and recognize the dangers involved.
Correct use
▸Use the device only as described in these Operating Instructions. The manufacturer
bears no responsibility for any other use.
▸Carry out the specified maintenance work.
▸Do not remove, add or change any components in or on the device unless such changes
are officially allowed and specified by the manufacturer. Otherwise
– the device may become dangerous
– the manufacturer’s warranty becomes void
Special local requirements
Follow local laws, regulations and company-internal operating directives applicable at the
installation location.
Responsibility for dangerous substances
Safety precautions examples:
●Marking the device with warning signs
●Marking the operating area with warning signs
●Safety-related instruction of personnel who could be in the vicinity of the installation
site.
Retention of documents
▸Keep these Operating Instructions available for reference.
▸Pass on to a new owner/operator.
Measures for purge air feed failure
▸Refer to Purge Air Unit Operating Instructions.
WARNING: Mortal/health danger as a result of a gas path leakage
When the device is used to measure toxic gases: A leak, for example in the purge air
supply, can be an acute hazard for persons.
▸Take suitable safety measures.
▸Make sure these safety precautions are followed.

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SAFETY INFORMATION 1
1.3.1 Disposing of device parts harmful to the environment
WARNING: Possible materials harmful to the environment and health
GM700 components can have small shares of pollutants or hazardous substances
such as low lead content in printed circuit boards. The optional permanent cuvette
contains low concentrations of HF or HCl (according to device configuration, see scope
of delivery).
▸Dispose of all GM700 components according to local laws, regulations and
company-internal operating directives applicable at the installation location such as:
– Printed circuit boards and similar electronic components
– Dispose of the permanent cuvette, when fitted, safely. It can contain low
concentrations of HCI or HF. Therefore, do not simply destroy the cuvette.

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2PRODUCT OVERVIEW
2ProductOverview
2.1 Product identification
Product name: GM700
Device versions GM700 version with probe
Manufacturer: SICK AG
Erwin-Sick-Str. 1 · 79183 Waldkirch · Germany
Type plates: ●SR-unit: On the right side
●On the purge air fixture
GM700 version: Measuring component:
GM700-2 HF
GM700-3 HCI
GM700-5 NH3
GM700-8 HCI / H2O
GM700-9 NH3/H2O

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PRODUCT OVERVIEW 2
2.2 GM700 system, measuring probe version, layout
Fig. 4: GM700 system overview (measuring probe version)
maintcalpardiag
GM
EvaluationUnit
CO
CO
2
H
2
O
mg/
m
3
236
Ref. conditions
Hum: wet
Measuring
Operation
Service
Warnin
Malfunction
Sender/receiver unit
with GMP measuring probe
Evaluation unit
EvU
CAN bus
CAN
Inputs/outputs
analog, digital
Interfaces to plant peripherals:
●Measured data processing
●Status signals
Purge air unit SLV 4
(not fitted for GPP
probes)

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2PRODUCT OVERVIEW
Sender/receiver unit (SR-unit)
The sender/receiver unit contains the optic and electronic subassemblies of the
measuring system. The gas concentration is captured here and the measured value
determined.
Measuring probe
Measuring probes are available in open design versions with integrated purge air guidance
system (GMP) as well as versions with a gas-permeable Sinter filter not requiring purge air
(GPP: Gas Permeable Probe). Both versions are described in Section “Measuring probe in
detail”, page 17.
Purge air unit
The purge air unit generates the purge air supply for the SR-unit and the reflector. It
protects against contamination and high gas temperatures. Use one purge air unit each for
the SR-unit depending on the application. The blower types for the SR-unit are each
designed differently depending on the application.
Evaluation unit
The evaluation unit (EvU) is responsible for measured value processing and output as well
as control and monitoring functions. The EvU can be installed near the SR-unit or up to
approx. 1000 m from the measuring point, e.g. in the central control/monitoring room.
Functions of the EvU:
●Output of measured values, computed data and operating states
●Communication with the peripheral equipment
●Output of error messages and other status signals
●Control of automatic test functions and access during service work (diagnosis)
Connection cables
Further information on the purge air unit
▸Refer to Purge Air Unit Operating Instructions.
Cable type Part No.
Cable (CAN bus) SR-unit – purge air fixture measuring probe, length 0.8 m 2 023 704
●Cable (CAN bus) SR-unit – evaluation unit, length 4 m
●Extension up to 1000 m, with terminal box; with 24 V supply
●Scope of delivery
●Option: 2020440
Cable [1] SR-unit purge air fixture – filter monitor of purge air unit, 5 m
(only for version Cross-Duct and GMP probe) 2 032 143
2 cables [2] SR-unit purge air fixture - filter monitor of purge air unit, length
2 m extension (only for GMP probe) 6 025 923
Cable SR-unit purge air fixture – filter monitor of purge air unit, length 3 m
extension (only for Cross-Duct and GMP probe version) 6 028 663
Table 1: Connection cables Part Nos
[1] one cable included in scope of delivery
[2] Included in scope of delivery

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PRODUCT OVERVIEW 2
Flange with tube
Fig. 5: Flange with tube
The purge air unit onto which the SR-unit will later be mounted is secured to the flange. An
ANSI or DIN flange can be used onsite instead of the flange supplied.
2.2.1 Measuring probe in detail
2.2.1.1 GPP measuring probe
Fig. 6: GPP measuring probe with ceramic filter
Integrated sensors
All probe versions have a built-in pressure sensor as well as an integrated temperature
sensor PT 1000 that continually measures the medium temperature of the probe in the
active measuring path. The measured data are transferred via the CAN bus interface of the
measuring probe and can then be displayed on the evaluation unit.
EPA conformity
When using a GPP probe, an audit measurement conforming to EPA CFR 40 Part 60 resp.
Part 75 can be carried out with the device fitted as far as usable for the application.

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2PRODUCT OVERVIEW
2.2.1.2 GMP probe with open measuring gap
Characteristics:
●Very short response time.
●High temperature stability.
●Requires a continuously purge air supply for operation.
●Current GMP probe series: The air is outlet into the duct at 90° to the gas flow (directed
purge air).
●Equipped with a locking device on the opening for sample gas that is activated with a
lever on the probe flange.
Fig. 7: GMP measuring probe (with open measuring gap)
Temperature sensor
PT 1000
Purge air outlet
Open measuring path
(measuring gap)
Lever position
Lever and locking device:
Open

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PRODUCT OVERVIEW 2
2.2.1.3 GPP gas diffusion probe in dry or wet version
Characteristics
●Suitable for higher dust concentrations than the GMP probes
●Suitable for audit measurements conforming to EPA
●Suitable for applications with low flow velocities or irregular flow profiles
Fig. 8: Measuring gap for GPP measuring probe
Both variants of the GPP differ in the respective filter which provides suitability for different
application areas in accordance with Table “GM700 measuring probes in comparison”,
page 20.
Advantages of the GPP measuring probe
●Does not require a purge air supply
●Easy maintenance
●Automatically controlled heating prevents condensate on the optical interfaces
●Cast housing: The electronics for heating control, temperature and pressure
measurement are located in a cast housing that forms the section of the measuring
probe between the duct flange and the SR-unit. This housing is fitted with the electrical
connections for the CAN bus and power supply as well as the test gas connection which
supports audit measurement according to EPA Directive CFR 40, Part 60 or Part 75.
Temperature sensor PT 1000
Gas permeable ceramic filter

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2PRODUCT OVERVIEW
2.2.1.4 GM700 measuring probes in comparison
This Table shows an overview of the features of the different measuring probes. All
measuring probe versions are compatible with all SR-units. The SR-unit is calibrated to the
respective probe length before delivery.
2.2.1.5 Special versions
Versions made from stainless steel type 1.4539 especially resistant to acid can be
manufactured according to customer demands on request.
2.3 GM700 options and accessories
●Terminal box for CAN bus with 24 V power supply
The optional terminal box is available for distances between SR-unit and EvU >4 meters
via a CAN bus cable provided by the customer.
The total length of all CAN bus connections: up to 1000 m.
●Cover plate for purge air fixture of the sender/receiver unit
To maintain purge air supply in cases where this must remain in operation at the
measuring point when the SR-unit is dismounted.
●Weatherproof cover for SR-unit and purge air unit
Required for outdoor installation – dimension drawings, see “Weatherproof cover dimen-
sions”, page 85.
Measuring probe GMP (open probe) GPP (dry)
Design
Measuring path open in flow
direction; purge air guidance
with outlet aligned 90° to gas
flow
Gas diffusion probe with
ceramic filter, for dry sample gas
Max. gas temperature. 430°C[1]
Gas check according to EPA
specification possible –Yes
Purge air supply required Yes –
Heating on optical interfaces in
the probe – Yes, with integrated control
Flow rate of sample gas 1...40 m/s < 40 m/s
Suitable for wet sample gas Yes –
Maximum duct pressure ±120 hPa, depending on purge
air supply ±120 hPa
Measurable components NH3, HF, HCl NH3[2], HCl[3]
System-response time (T90)≥5s ≥120 s
Duct diameter[4] > 360 mm > 300 mm
Dust concentration < 2 g/m3in operating state < 30 g/m3in operating state
Probe lengths available [m] 1.0/1.5 /2.0
Active measuring paths
available [mm] 250/500/750/1000/1250 250/500/750/1000
Table 2: Measuring probes in comparison
[1] The maximum temperature used for the measurement depends on the application
[2] As from gas temperature 300 °C
[3] Gas temperature > 130 °C
[4] Probes with shorter active measuring paths on request (possibly required for higher concentrations or narrower
duct diameters)