Endress+Hauser Analytik Jena multi EA 4000 User manual

Operating Manual
multi EA 4000
Elementary analyzer
C, S and Cl solids analysis

Analytik Jena AG
Konrad-Zuse-Str.1
07745 Jena Germany
Phone + 49 3641 / 77 70
Fax + 49 3641 / 77 92 79
Email [e-mail]
Analytik Jena AG
Konrad-Zuse-Str. 1
07745 Jena Germany
Phone + 49 3641 / 77-7407 (Hotline)
Email [e-mail]
http://www.analytik-jena.com
multi EA and multiWin are registered trademarks of Analytik Jena AG in Germany.
Microsoft and Windows are registered trademarks of Microsoft Corp.
The identification with ® or TM is omitted in this manual.
11-0302-001-23
02.18
Analytik Jena AG
© Copyright 2018, Analytik Jena AG
Manufacturer
Service
General information
Copyrights and
Trademarks
Documentation number
Edition
Implementation of the
Technical Documentation

multi EA 4000 Contents
3
Contents
1Basic information............................................................................................................. 7
1.1 User manual notes ...................................................................................................... 7
1.2 Intended use ............................................................................................................... 8
1.3 Warranty and liability.................................................................................................. 9
2Safety instructions ......................................................................................................... 10
2.1 Safety markings on the analyzer............................................................................... 10
2.2 Technical condition ................................................................................................... 11
2.3 Requirements for the operating personnel ............................................................... 11
2.4 Safety instructions, transport and commissioning .................................................... 12
2.5 Safety instructions - operation.................................................................................. 13
2.5.1 General...................................................................................................................... 13
2.5.2 Safety instructions - Protection against explosion and fire....................................... 13
2.5.3 Safety instructions - electrical equipment................................................................. 14
2.5.4 Safety instructions for compressed gas cylinders and systems.................................. 14
2.5.5 Handling of auxiliary and operating materials.......................................................... 15
2.5.6 Safety instructions: service and repair....................................................................... 16
2.6 Behavior during emergencies.................................................................................... 16
3Function and setup ........................................................................................................ 17
3.1 General overview ...................................................................................................... 17
3.2 Basic device............................................................................................................... 17
3.2.1 Combustion system................................................................................................... 18
3.2.2Hose system.............................................................................................................. 18
3.2.3 Components for measuring gas drying and cleaning ................................................ 19
3.2.4 Indicator and control elements, connections ............................................................ 21
3.3 C/S module ............................................................................................................... 24
3.4 Cl module .................................................................................................................. 25
3.4.1 Coulometer assembly and measuring cell ................................................................. 26
3.4.2 Combustion tube and measuring gas drying............................................................. 28
3.4.3 Measuring gas cleaning ............................................................................................ 29
3.4.4 Connections............................................................................................................... 29
3.5 Automatic TIC solids module..................................................................................... 31
3.5.1 Technical data........................................................................................................... 32
3.5.2 Layout ....................................................................................................................... 32
3.6 Manual TIC solids module......................................................................................... 36
3.6.1 Technical data........................................................................................................... 36
3.6.2 Manual TIC solids module setup ............................................................................... 37
3.7 Additional optional accessories................................................................................. 40
3.7.1 Sampler..................................................................................................................... 40
3.7.2 Flame sensor............................................................................................................. 40
3.7.3 Scales ........................................................................................................................ 40
4Measuring methods....................................................................................................... 41
4.1 TC/TS analysis........................................................................................................... 41
4.2 TIC analysis ............................................................................................................... 41
4.3 TOC analysis.............................................................................................................. 42
4.3.1 Differential method for the TOC analysis.................................................................. 42
4.3.2 Direct method for the TOC analysis........................................................................... 43
4.4 Determination of carbon after pyrolysis: TC-EC (optional) ....................................... 43
4.5 Data analysis in the C/S mode .................................................................................. 43
4.5.1 Calibration techniques .............................................................................................. 43
4.5.2 Daily factor................................................................................................................ 44
4.5.3 Method characteristics.............................................................................................. 44
4.5.4 Other calculations ..................................................................................................... 45
4.6 Cl determination ....................................................................................................... 45
4.7 Data analysis in the Cl mode ..................................................................................... 46

Contents multi EA 4000
4
4.7.1 End point routine ...................................................................................................... 46
4.7.2 Measurement with split / split factor........................................................................ 46
4.7.3 Analysis..................................................................................................................... 46
5Commissioning............................................................................................................... 47
5.1 Site requirements...................................................................................................... 47
5.1.1 Installation conditions............................................................................................... 47
5.1.2 Space requirement.................................................................................................... 47
5.1.3Energy supply............................................................................................................ 47
5.1.4 Gas supply................................................................................................................. 48
5.2 Unpacking and placing the analyzer ......................................................................... 48
5.3 Positioning the analyzer with various detector modules .......................................... 49
5.3.1 Positioning the multi EA 4000 C/S ........................................................................... 49
5.3.2 Positioning the multi EA 4000 Cl.............................................................................. 51
5.3.3 Positioning the multi EA 4000 C/S Cl ....................................................................... 53
5.3.4 Positioning the automatic TIC solids module ............................................................ 56
5.3.5 Positioning the manual TIC solids module ................................................................ 59
5.4 Connecting and using the autosampler..................................................................... 62
5.4.1 Installing and adjusting the autosampler FPG 48..................................................... 62
5.4.2 Installing the boat sensor.......................................................................................... 66
5.4.3 Retrofitting the sampler FPG 48 with a boat storage ............................................... 66
5.4.4 Measurement cancellation when using the sampler FPG 48.................................... 68
5.4.5 Use manual sample feed........................................................................................... 68
5.5 Connecting and using the external scales ................................................................. 69
6Operation........................................................................................................................ 70
6.1 Activation / warm-up phase / setup ......................................................................... 70
6.2 C/S measurement ..................................................................................................... 71
6.2.1 Preparing the multi EA 4000 and C/S module.......................................................... 71
6.2.2 Performing the C/S measurement ............................................................................ 74
6.3 Determination of carbon after pyrolysis.................................................................... 77
6.3.1 Preparing the multi EA 4000 and C/S module.......................................................... 77
6.3.2 Performing the determination of carbon after pyrolysis........................................... 77
6.4 Cl determination ....................................................................................................... 80
6.4.1 Preparing the multi EA 4000 for Cl measurements .................................................. 80
6.4.2 Preparing the electrolyte solution............................................................................. 86
6.4.3 Preparing the measuring cell.................................................................................... 87
6.4.4 End point routine ...................................................................................................... 88
6.4.5Performing the Cl measurement............................................................................... 88
6.4.6 Checking the split ratio ............................................................................................. 91
6.4.7 Burning off quartz boats ........................................................................................... 92
6.5 TIC/TOC determination with the automatic TIC solids module................................. 92
6.5.1 Preparing the automatic TIC solids module for the analysis ..................................... 92
6.5.2 Reagents required..................................................................................................... 96
6.5.3 TIC determination with the automatic TIC solids module ......................................... 96
6.5.4 TOC determination based on differentiation method............................................... 98
6.5.5 TOC measurement using direct determination ....................................................... 101
6.6 TIC determination with the manual TIC solids module ........................................... 103
6.6.1 Preparing the manual TIC solids module and analyzer ........................................... 103
6.6.2 Performing a TIC measurement.............................................................................. 103
7Maintenance and care .................................................................................................107
7.1 Basic device multi EA 4000..................................................................................... 107
7.1.1 Clean and maintain the device................................................................................ 107
7.1.2 Check tube connection ............................................................................................ 107
7.2 Operation with C/S module..................................................................................... 108
7.2.1 Inspect and replace ceramic tube............................................................................ 108
7.2.2 Cleaning the dust trap............................................................................................. 110
7.2.3 Changing the desiccant in the drying tube.............................................................. 112
7.2.4 Replace the halide trap ........................................................................................... 113

multi EA 4000 Contents
5
7.3 Operation with Cl module ....................................................................................... 114
7.3.1 Replacing the sulfuric acid/cleaning the sulfuric acid container ............................. 114
7.3.2 Servicing/replacing the quartz glass combustion tube............................................ 115
7.3.3 Servicing the combined electrode ........................................................................... 117
7.3.4 Servicing the measuring cells.................................................................................. 118
7.3.5 Replacing the adsorption agent .............................................................................. 119
7.4 Operation with the automatic TIC solids module .................................................... 119
7.4.1 Cleaning the TIC reactor of the automatic TIC solids module.................................. 120
7.4.2 Cleaning the condensation coil ............................................................................... 121
7.4.3 Removing and replacing the pump hose................................................................. 122
7.4.4 Cleaning the condensate container......................................................................... 125
7.5 Manual TIC solids module....................................................................................... 125
7.5.1 Cleaning the TIC reactor at the manual TIC solids module...................................... 126
7.6 Replacing the water traps ....................................................................................... 126
8Fault removal ...............................................................................................................127
8.1 General information................................................................................................ 127
8.2 Error messages in multiWin .................................................................................... 127
8.3 Displays in the DEVICE STATUS window...................................................................... 133
8.4 Equipment fault ...................................................................................................... 135
8.4.1 Basic device............................................................................................................. 135
8.4.2 C/S module ............................................................................................................. 135
8.4.3 Cl module ................................................................................................................ 136
8.5 Device communication fault.................................................................................... 137
8.6 Analytical problems................................................................................................. 138
8.6.1 C/S determination................................................................................................... 138
8.6.2 Cl determination ..................................................................................................... 139
8.6.3 TIC determination (automatic TIC solids module)................................................... 140
8.6.4 TIC determination (manual TIC solids module)....................................................... 140
8.6.5 Measurements in pyrolysis mode (EC).................................................................... 141
9Transport and storage.................................................................................................142
9.1 Transport ................................................................................................................ 142
9.1.1 Preparing the analyzer for transport....................................................................... 142
9.1.2 Removing the heating elements and furnace cartridge .......................................... 144
9.1.3 Transport notes....................................................................................................... 146
9.1.4 Moving the analyzer in the laboratory.................................................................... 146
9.2 Storage.................................................................................................................... 147
10 Disposal.........................................................................................................................148
11 Specification ................................................................................................................. 149
11.1 Technical data......................................................................................................... 149
11.2 Standards and directives ......................................................................................... 151

Contents multi EA 4000
6
Figures
Figure 1 Gas sluice and horizontal furnace of the basic device multi EA 4000 ....... 18
Figure 2 Flow regulators at the basic device multi EA 4000..................................... 19
Figure 3 Dust trap at the combustion furnace............................................................ 20
Figure 4 Dust filter ....................................................................................................... 20
Figure 5 Drying tube and halide trap.......................................................................... 21
Figure 6 Status light at the basic device multi EA 4000............................................ 21
Figure 7 Control elements behind the front door of the multi EA 4000.................. 22
Figure 8 Connections on the right-hand side of the multi EA 4000......................... 22
Figure 9 Connections on the left-hand side of the multi EA 4000........................... 23
Figure 10 Connections at the rear of the multi EA 4000......................................... 23
Figure 11 Indications and connections at the C/S module ...................................... 25
Figure 12 Cl module ................................................................................................... 26
Figure 13 Measuring cell design................................................................................ 27
Figure 14 Combined electrode for the measuring cell............................................. 27
Figure 15 Quartz combustion tube with gas sluice .................................................. 28
Figure 16 Sulfuric acid containers for measuring gas drying .................................. 28
Figure 17 Halide trap and adsorption tube in the Cl module .................................. 29
Figure 18 Cl module connections in combination with a C/S module .................... 30
Figure 19 Connections for the coulometric measuring cell in the Cl module......... 30
Figure 20 Automatic TIC solids module .................................................................... 31
Figure 21 TIC reactor.................................................................................................. 32
Figure 22 Hose pumps at the automatic TIC solids module .................................... 33
Figure 23 Measuring gas drying and cleaning at the aut. TIC solids module......... 34
Figure 24 Dust filter before the changeover valve................................................... 34
Figure 25 Connections at the automatic TIC solids module .................................... 35
Figure 26 Manual TIC solids module......................................................................... 36
Figure 27 TIC reactor of the manual TIC solids module........................................... 37
Figure 28 Flow regulator for the oxygen flow.......................................................... 37
Figure 29 Metering pump for acid on the manual TIC solids module .................... 38
Figure 30 Measuring gas drying and cleaning at the man. TIC solids module....... 39
Figure 31 Connections at the manual TIC solids module......................................... 39
Figure 32 multi EA 4000 C/S..................................................................................... 50
Figure 33 multi EA 4000 Cl........................................................................................ 52
Figure 34 multi EA C/S Cl for C/S measurements .................................................... 54
Figure 35 multi EA 4000 C/S Cl for Cl measurements............................................. 55
Figure 36 Automatic TIC solids module .................................................................... 57
Figure 37 multi EA 4000 C/S with automatic TIC solids module............................ 58
Figure 38 multi EA 4000 with man. TIC solids module ........................................... 60
Figure 39 multi EA 4000 C/S Cl with man. TIC solids module ................................ 61
Figure 40 Retrofit kit for FPG 48 to use the boat storage ....................................... 67
Figure 41 Gas sluice for C/S measurements ............................................................. 71
Figure 42 Ceramic tube with dust trap and gas sluice ............................................. 72
Figure 43 Inspecting the halide trap and drying tube.............................................. 74
Figure 44 Quartz combustion tube with gas sluice .................................................. 80
Figure 45 Coupling element for Cl measurements................................................... 81
Figure 46 Components for connecting the TIC reactor and ceramic tube .............. 93
Figure 47 Screw connection at the halide trap....................................................... 107
Figure 48 Dust filter.................................................................................................. 111
Figure 49 Clamping the pump hoses....................................................................... 123
Figure 50 Window STATUS ANALYZER......................................................................... 133

multi EA 4000 Basic information
7
1Basic information
1.1 User manual notes
The analyzer multi EA 4000 is intended for operation by qualified specialist personnel
observing this user manual.
The user manual informs about the design and operation of the analyzer and provides
personnel familiar with elementary analysis the necessary expertise for the safe han-
dling of the equipment and its components. The user manual further includes notes on
the maintenance and service of the equipment and potential causes and remedies of
any faults.
Instructions for actions that occur in chronological order are numbered and combined
in action units.
Warnings are indicated by warning triangles and a signal word. The type, source and
consequences of the danger are stated together with notes on preventing the danger.
The elements of the control and analysis program are indicated as follows:
Program terms are indicated by small caps (e.g., FILE menu).
Buttons are shown by square brackets (e.g., [OK]).
Menu items are separated by arrows (e.g., FILE OPEN).
The user manual uses the following symbols and signal words to indicate hazards or
instructions. The warnings are always placed before an action.
WARNING
Indicates a potentially hazardous
situation that might cause death or very serious inju-
ries (deformities).
CAUTION
Indicates a potentially hazardous situation which might cause light or minor injuries.
NOTICE
Provides information on potential material or environmental damage.
Conventions
Symbols and
signal words used

Basic information multi EA 4000
8
1.2 Intended use
The elementary analyzer multi EA 4000 is a device for the determination of total car-
bon content and/or total sulfur content or for the determination of total chlorine con-
tent in solid or paste-like samples. After appropriate sample preparation, it can also be
sued for AOX determination.
The system is configured and extended in accordance with the specific analytical re-
quirements.
The analyzer multi EA 4000 is versatile in its application due to its robust modular de-
sign, ease of operation and expandability.
The multi EA 4000 is particularly suited for TIC/TOC determination in waste as well as
total chlorine determination in substitute fuels.
The multi EA 4000 permits simultaneous carbon and sulfur determination in sediment
and soil analysis.
An important area of use for the multi EA 4000 is the sulfur determination in coal or
ash residue as well as the detection of residual carbon in ash from combustion sys-
tems. Here too, chlorine determination in substitute fuels is of importance.
The multi EA 4000 enables the rapid sulfur and/or carbon determination in construc-
tion materials, such as cement or plaster, in ceramic materials or glass samples.
Due to the many configuration options the multi EA 4000 suitable for use in teaching
and research.
The analyzer multi EA 4000 must only be used for the methods for the detection of
the total carbon and/or the total sulfur content in and/or the determination of the to-
tal chlorine content in solid, paste-like or liquid samples. Any other use is not as in-
tended! Only the operator is liable for any damages that result from this.
In particular, it is prohibited to use the analyzer to analyze flammable liquids or sub-
stances that could farm explosive mixtures. No concentrated acids may be analyzed
with the analyzer.
The device must only be operated with oxygen 2.5 and argon 4.6 or better.
The operational safety of the analyzer multi EA 4000 is only ensured during proper
use according to the information in this user manual. The intended use also includes
the adherence to the installation conditions prescribed by Analytik Jena AG that are
available from the customer service address stated on the title page.
Waste management
Environmental
monitoring
Power station
Material testing
Research and teaching

multi EA 4000 Basic information
9
1.3 Warranty and liability
The warranty duration and liability comply with the legal requirements and the provi-
sions in the general terms and conditions of Analytik Jena AG.
Deviations from the intended use described in this user manual result in limitations of
warranty and liability in the event of a damage. Damage to wearing parts is not in-
cluded in the warranty.
Warranty and liability claims are excluded for personal injury and property damage
due to one or several of the following causes:
use of the multi EA 4000 analyzer other than intended
improper commissioning, operation and service of the analyzer
modifications of the equipment without prior consultation with Analytik Jena AG
operation of the device with faulty safety equipment or improperly fitted safety and
protection equipment
inadequate monitoring of the equipment components subject to wear
use of other than original spare parts, wearing parts or consumables
improper repairs
faults due to the non-observance of this user manual

Safety instructions multi EA 4000
10
2Safety instructions
For your own safety and to ensure error-free and safe operation of the analyzer
multi EA 4000, please read this chapter carefully before using the appliance.
Observe all safety notes listed in this user manual and all messages and displayed by
the multiWin control and analysis software on the monitor.
2.1 Safety markings on the analyzer
Warnings and information symbols have been attached to the analyzer and accessories
whose content must always be observed.
Damaged or missing safety symbols can cause incorrect actions leading to personal in-
jury or material damage! The safety symbols must not be removed! Damaged safety
symbols must be replaced immediately!
The following safety symbols have been attached to the analyzer and accessories:
Icons Meaning
Warning against hot surface
Warning against dangerous electrical voltage
Warning against hand injury from crushing
Warning against substances hazardous to health
Warning against corrosive
substances
Before opening the device always disconnect the mains plug
Observe the operating manual
The device contains controlled substances. Analytik Jena AG guarantees
that the substances will not leak within the next 25 years and, therefore,
will not cause any environmental danger or health risk within this period
if the device is used as intended.

multi EA 4000 Safety instructions
11
2.2 Technical condition
The analyzer corresponds in its design and construction to the current state of the art
technology. Unauthorized modifications or changes, especially such that affect the
safety of the staff and the environment, are generally not allowed.
Any manipulation of the safety equipment is prohibited! In case of an accident, ma-
nipulations of the safety equipment will be interpreted as deliberate!
The operator must only operate the analyzer in a sound and operationally safe con-
dition. The technical condition must always comply with the legal requirements and
regulations.
Prior to every use, the analyzer must be checked for damage and sound condition.
Any changes in the analyzer affecting its safety must be reported by the operating
personnel to the operator immediately.
The equipment components must only be connected to supply cables intended and
designed for this purpose.
All safety equipment and interlocks must be well accessible and regularly checked
for proper operation.
2.3 Requirements for the operating personnel
The analyzer multi EA 4000 must only be operated by qualified specialist personnel in-
structed in the use of the analyzer. The instruction must also include conveying the
content of this user manual and the user manuals of other system components or add-
on equipment.
The analyzer may pose dangers if it is not used by trained personnel, improperly or
other than intended.
Therefore, every person tasked with the operation of the analyzer must have read and
understood this user manual and the user manuals of any additional equipment before
carrying out the respective tasks. This also applies if the respective person has already
worked with or been trained on this kind of analyzer.
It is recommended that the operator have the operating personnel confirm the
knowledge of the content of the user manual in writing. The ultimate responsibility for
the accident-free operation of the analyzer rests with the operator or the specialist
personnel authorized by him.
In addition to the safety at work instructions in this user manual the generally applica-
ble safety and accident prevention regulations of the respective country of operation
must be observed and adhered to. The operator must ascertain the latest version of
these regulations.
The user manual must be accessible to the operating and service personnel at any
time!
The following has to be observed:
The analyzer must only be commissioned, operated and serviced by trained person-
nel instructed in technical safety.

Safety instructions multi EA 4000
12
The operation or servicing of the analyzer by minors or individuals under the influ-
ence of alcohol, drugs or medication is not permitted.
It must be ensured that only authorized personnel works at the analyzer.
The operating personnel must be familiar with the dangers arising from measuring
liquids. The appropriate protective equipment must be used.
Prior to pauses or at the end of the work appropriate skin cleaning and protection
measures must be carried out.
Eating, drinking, smoking or handling open flames in the operating room of the an-
alyzer is prohibited!
2.4 Safety instructions, transport and commissioning
The analyzer is always installed by the customer service department of Analytik Jena
AG or its authorized and trained specialist personnel. Independent assembly and in-
stallation are not permitted. Incorrect installation can create serious hazards.
The following has to be observed:
Insufficiently secured components pose a risk of injury! During transport, the com-
ponents of the equipment must be secured in accordance with the instructions in
the user manual.
Only transport the analyzer in its original packaging! Ensure that the transport pro-
tections have been fitted and the analyzer is completely empty.
To prevent health damage the following must be observed when moving the ana-
lyzer in the laboratory (lifting and carrying):
For reasons of safety, 2 persons are required to transport the analyzer and
must position themselves on both sides of the equipment.
Because the analyzer does not feature any handles, firmly grip the device from
the bottom and make sure prior to simultaneous lifting the device that the sen-
sitive components at the front are protected by the closed doors.
The guide values and statutory limits for lifting and carrying loads without aux-
iliary equipment must be observed and adhered to.
For a transport beyond moving within the building the heating elements and fur-
nace cartridge must be removed from the basic device. The re-installation of these
device components and subsequent commissioning must be performed by the cus-
tomer service department of Analytik Jena AG or authorized and trained specialist
personnel.
Risk of damage to health due to improper decontamination! Perform a professional
and documented decontamination of the device before returning it to Analytik
Jena. The decontamination report is available from Service when registering the re-
turn.
Analytik Jena must refuse acceptance of contaminated devices. The sender may be
liable for damage caused by inadequate decontamination of the device.

multi EA 4000 Safety instructions
13
2.5 Safety instructions - operation
2.5.1 General
The operator of the analyzer must make sure before each commissioning that the con-
dition of the analyzers including the safety equipment is sound. This applies in particu-
lar after each modification or extension of the analyzer or its repair.
The following has to be observed:
The analyzer must only be operated if all protective equipment (e.g. covers, drip
pans for chemicals and doors) are present, properly installed and operational.
The sound condition of the protection and safety equipment must be checked regu-
larly. Any defects must be corrected as soon as they occur.
Protective and safety equipment must never be removed, modified or switched off
during operation.
Free access to the power switch on the back of the enclosure has to be ensured dur-
ing operation.
The ventilation equipment on the multi 4000 and the extension modules must be
in good working condition. Covered ventilation grilles or slits etc. may cause the de-
vice to break down or may cause damage to it.
The analyzer must not be switched on without a heated combustion tube.
The furnace operates with temperatures of up to 1500 °C. The hot components
(furnace, gas sluice, dust trap, boat) must not be touched during or directly after
the operation of the analyzer.
In manual operation, the hot boats must be deposited on the surface of the manual
feed or on some other heat-resistant surface.
During automatic cooling, do not interrupt the power supply. In case of prolonged
power failure during operation disconnect the mains plug and open the ride side
panel of the basic device to prevent damage from overheating. When removing the
side panel there is a risk of injury from sharp-edged components. To not touch the
heating elements or the hot furnace!
Keep all combustible materials away from the analyzer.
At the autosampler there is a risk of crushing! The autosampler arm, the gripper
and the boat carousel move during activation, initialization, adjustment and meas-
urement operation. Keep an adequate distance to avoid having your hands crushed.
2.5.2 Safety instructions - Protection against explosion and fire
The analyzer must not be operated in an explosive environment. Smoking or handling
open flames in the operating room of the analyzer is prohibited!
The operating personnel must be familiar with the location of the fire-fighting equip-
ment in the operating room of the analyzer.

Safety instructions multi EA 4000
14
2.5.3 Safety instructions - electrical equipment
Work on electrical components of the analyzer may only be carried out by a qualified
electrician in accordance with the applicable electrical engineering rules. Life-threat-
ening electrical voltages and high currents may occur in the interior of the analyzer!
The following has to be observed:
Extension modules or system components must always be connected to or discon-
nected from the analyzer in a deactivated condition.
Before opening the analyzer, it must be switched off from the equipment switch
and the mains connector must be disconnected from the mains outlet!
Any work on the interior of the analyzer may only be carried out by the customer
service of Analytik Jena AG and specially authorized technicians. This excludes the
removal of the heating element and the furnace cartridge for transport. The re-in-
stallation and subsequent commissioning must, however, only be carried out by
customer service and authorized specialist personnel.
The electrical components must be checked regularly by a qualified electrician. Any
defects, such as loose connections, faulty or damaged cables, must be repaired
without delay.
The analyzer and additional modules must be switched off immediately at the
power switches and the power supplies disconnected from the mains if there is any
interference with the electric components.
2.5.4 Safety instructions for compressed gas cylinders and systems
The carrier gases (argon and/or oxygen) are taken from compressed gas containers or
local compressed gas systems. The required purity of the gas must be ensured (→see
section "Technical data" p.149)!
Work on compressed gas cylinders and systems must only be carried out by individuals
with specialist knowledge and experience in compressed gas systems.
The following has to be observed:
The safety instructions and guidelines for operating compressed gas cylinders or
compressed gas systems that apply at the operating location must be strictly com-
plied with.
Compressed gas containers must only be operated and stored upright and must be
secured to a permanent structure or suitable frame for compressed gas containers.
Only move the compressed gas container after securing it to a suitable trolley.
Compressed air hoses and pressure reducers may only be used for the assigned
gases.
Pipes, hoses, screw connections and pressure reducers for oxygen must be kept free
from grease.
Oxygen is a strong oxidizer that significantly accelerates combustion. Take care
when handling oxygen containers since highly pressurized oxygen may cause seri-
ous explosions when coming into contact with ignitable materials.
All pipes, hoses and screw connections must be checked regularly for leaks and ex-
ternally visible damage. Leaks and damaged must be repaired without delay.

multi EA 4000 Safety instructions
15
Any leak from which gases escape (except oxygen/air) may result in an oxygen-
starved atmosphere causing suffocation. The area in which compressed gas con-
tainers are stored and the area around the device must be ventilated adequately to
prevent the development of an oxygen-starved atmosphere.
Prior to inspections, service and repairs the valves must be closed and the analyzer
vented!
After successful repair and service of the components of the compressed air con-
tainers or system, the analyzer must be checked for sound operation prior to re-
commissioning!
Unauthorized assembly and installation are not permitted!
2.5.5 Handling of auxiliary and operating materials
The operator is responsible for the selection of substances used in the process as well
as for their safe handling. This is particularly important for radioactive, infectious, poi-
sonous, corrosive, combustible, explosive and otherwise dangerous substances.
When handling dangerous substances local safety codes and guidelines must be ob-
served.
The following general notes do not replace the specific local regulations or the regula-
tions in the safety data sheets of the manufacturers for the auxiliary and operating
materials.
The following has to be observed:
The relevant regulations and the notes in the safety data sheets of the manufactur-
ers have to be observed and complied with regards to storage, handing, use and
disposal for all auxiliary and operation materials used during operation or mainte-
nance of the analyzer.
Special care must be taken when handling concentrated acids, such as sulfuric acid
and acetic acid used during analysis and the desiccant magnesium perchlorate.
Acetic acid vapor may also develop during chlorine analysis and strongly irritate the
respiratory tracts.
When preparing the electrolyte solution organic substances hazardous to health,
such as methanol or thymol, are used.
Auxiliary and operation materials may never be placed in containers or vessels for
food. The approved containers for the relevant material are to be used. These must
be labeled accordingly. The notes on the labels have to be observed!
When working with quartz wool avoid the creation of dust! Inhaled dust might
cause irritation to respiratory tracts.
Protective goggles and rubber gloves have to be worn when handing reagents. The
notes on the labels have to be observed.
Biological samples must be handled according to local guidelines regarding the
handling of infectious material.
Caution when handing quartz glass and glass parts. Risk of broken glass and there-
fore risk of injury!

Safety instructions multi EA 4000
16
Auxiliary and operating materials as well as their containers may not be disposed in
domestic waste or enter the sewage system or the soil. The applicable regulations
for disposal of these materials must be meticulously observed.
Ensure good room ventilation in working rooms.
2.5.6 Safety instructions: service and repair
The analyzer is usually serviced by the customer service department of Analytik Jena
AG or its authorized and trained specialist personnel.
Independent servicing can maladjust or damaged the analyzer. Therefore, the operator
may generally only carry out the tasks listed in chapter "Maintenance and care", p. 107.
Any service and repair work at the analyzer may usually only be carried out in the
switched-off condition (unless stated otherwise).
Prior to servicing or repair, the energy and gas supplies must be disconnected and
the analyzer must be v vented!
Only use original accessories and original replacement parts from Analytik Jena AG.
The notes in section "Service and care" must be observed.
All protective equipment must be reinstalled correctly immediately after comple-
tion of the service and repair work and be checked for operation!
The exterior of the analyzer may only be cleaned with a damp, not dripping, cloth
after the analyzer has been switched off.
Service tasks and the replacement of system components (removal of the combus-
tion tube, service of the dust trap) must only be carried out after a sufficiently long
cooling down phase.
2.6 Behavior during emergencies
The analyzer must be switched off from the main switch (in the multi EA and its mod-
ules on the equipment back plate) and the power supplies must be disconnected from
the mains in case of dangerous situations or accidents.
Because a rapid response can save lives during an emergency, the following has to be
ensured:
The operating staff must be familiar with the location of safety equipment, acci-
dent and danger alarms as well as first aid and rescue equipment as well as their
handling.
The operator is responsible for the respective training of the operating staff.
All equipment for first aid (first-aid kit, eyewash bottles, stretcher, etc.) as well as
equipment for firefighting (fire extinguishers) must be within reach and easy to ac-
cess. All equipment has to be in a sound condition and should be checked regularly.

multi EA 4000 Function and setup
17
3Function and setup
3.1 General overview
The analyzer multi EA 4000 is of modular design. The basic device (combustion unit
with furnace module HTS1500) is combined with one or several detector modules de-
pendent on the task:
Basic device
Carbon and/or sulfur module (C/S module)
Chlorine module (Cl module)
TIC solids module (automatic or manual)
It is possible to change from C/S to Cl determination without modifying the electrical
connections. The ceramic tube is then replaced with a quartz glass combustion tube.
Sample introduction to the combustion furnace takes place:
automatic using the autosampler FPG 48
manual using manual feed
The device system can be combined with scales with an interface to the control com-
puter, which automatically transfer the sample volume for the calculation of the analy-
sis results.
The control electronics is located in a detector module in accordance with the basic
configuration:
in the C/S module if a C/S module is connected
in the Cl module if the analyzer is not combined with a C/S module
The control of the analyzer and the analysis of the measurements takes place via the
control and analysis software multiWin® installed on an external PC.
3.2 Basic device
The basic device of the multi EA 4000 consists of the following main components:
Combustion system
Hose system
Components for measuring gas drying and cleaning
Indicator and control elements, connections

Function and setup multi EA 4000
18
3.2.1 Combustion system
The combustion furnace is a resistor-heated horizontal furnace for combustion tem-
peratures up to 1500 °C. A combustion tube serves as reactor. The carrier and combus-
tion gas is supplied via an open gas sluice to the inside of the combustion tube. Be-
cause the gas flow of the carrier and combustion gas is greater than the intake flow of
the measuring gas, the resulting overpressure at the combustion tube inlet prevents
measuring gas from escaping or ambient entering the combustion tube.
Open gas sluice
Horizontal furnace (ride side panel opened)
Figure 1 Gas sluice and horizontal furnace of the basic device multi EA 4000
The combustion tube for C/S determination is made of a special high temperature ce-
ramic material (HTC-High Temperature Ceramic). This is particularly robust, corrosion-
resistant and low in wear. Thanks to the HTC technology, samples can be digested
without catalysts at temperatures of up to 1500 °C. For especially difficult matrices, the
combustion temperature can be increased to 1800 °C with special aggregates (use of
the exothermic effect).
A quartz tube is used as combustion tube for Cl determination. This is a high chemical
inertia against HCl and prevents low results and memory effects during the analysis.
The maximum furnace temperature is 1000 °C when using the quartz tube.
The combustion system is equipped with a temperature controller that monitors the
heating of the furnace, maintains the temperature at the target value and prevents
overheating.
3.2.2 Hose system
The connection between the individual components of the basic device and to the
analysis modules is by way of a hose system. The layout of the hose system in the re-
spective module configurations can be found in the hose diagrams in section "Position-
ing the analyzer with various detector modules" p. 49ff.
Hose system

multi EA 4000 Function and setup
19
The gas flows for carrier gas and combustion gas are controlled through manually ad-
justable flow regulators at the front of the basic device.
An integrated suction pump ensures a stable flow of the measuring gas through the
detector. The required intake flow is set using the "pump" valve at the flow regulator.
The pump and the gas flows are automatically activated once the multiWin program
has been started and the temperature of the combustion furnace differs by less than
50 K from the target temperature. If the temperature differs by more than 50 K from
the target temperature, the pump and gas flows are automatically deactivated.
Figure 2 Flow regulators at the basic device multi EA 4000
1 Flow regulator for argon/oxygen "Ar/O
2
"
2
Flow regulator for oxygen "O2"
3 Flow regulator for "pump" intake flow
3.2.3 Components for measuring gas drying and cleaning
The dust trap is attached directly to the ceramic combustion tube. Combustion dust
sediments there. Larger particles in the gas flow hit against a plate set vertically to the
gas flow and drop down.
Gas flow control
Dust trap for C/S deter-
mination

Function and setup multi EA 4000
20
Figure 3 Dust trap at the combustion furnace
The dust trap is arranged easily accessible on the left side of the device behind the
contact guard.
Directly after the dust trap a dust filter has been installed in the gas path. It holds back
particles which the dust trap could not manage to remove from the measuring gas.
Figure 4 Dust filter
The drying tube, filled with magnesium perchlorate as a desiccant, has been installed
in the gas path for drying the measuring gas during C/S determination.
A halide trap (U tube) is has been installed in the basic device to remove interfering
substances from the measuring gas and to protect the detectors and the flow regula-
tor. The U tube is filled with special copper wool and brass wool. The filling of the hal-
ide trap has to be renewed at the latest once half of the copper wool or the brass wool
is discolored.
Dust filter
Drying tube and
halide trap for
C/S determination