IKA C 6000 User Manual

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IKA® C 6000 global standards IKA

C 6000 isoperibol

052014 Reg.-No. 4343-01

Operating instructions EN

Source language: German

Contents

Page

CE Declaration of conformity 04

Explication of warning symbols 04

Safety instructions 05

Correct use 07

User instructions 07

System features 07

Warranty and liability 08

Transport and storage 08

Transport and storage conditions 08 Unpacking 09

Scope of supply 09

Description of system components 10

C 6000 calorimeter global standards/isoperibol 10

IKA

Hoses 11

Commissioning 11

Place of installation 11 Connection to the condenser 12 Connection to the water 12 Connection to the oxygen supply 13 Connection to the mains power supply 13 Connection of peripherals 14 On/off switch 15

Display and operating elements 16

Explanation of the screen display 16

Working with the IKA® C 6000 global standards/isoperibol calorimeter 20

Switching on the device 20 System test 20 Switching off the device 21 The standard calorimetric procedure 22

- Caloriﬁ c value determination 22

- Corrections 23

- Note on the sample 24

- Complete combustion 25

- Calibration (only IKA® C 6000 global standards) 25

- Calibrating 26

- Instructions on calibration 26 Preparation for measurement 27 Charging the decomposition vessel 29 Calorimetric measurement without automatic decomposition vessel detection 29 Starting the measurement 30 Evaluation 32

Menu (main overview) 33

Library 34 Method of operation, decomposition vessels and calibration 35 Servicing the decomposition vessel 38

Contents

Other Settings 38

Evaluation 38 Measurement 39 Ignition aids 40 Combustion aid 41 Balance 41 Printer 42 Other 42

Help and servicing system 44 Displaying / hiding the sample rack 46 Cleaning 48

Cleaning the system 48 Cleaning the ﬁ lter 48

Troubleshooting 49

Fault rectiﬁ cation 51 Checks 55

Accessories and consumables 56

Accessories 56

Technical data 57

Technical data IKA® C 6000 global standards 57 Technical data IKA® C 6000 isoperibol 59

EC-Declaration of conformity

We declare under our sole responsibility that this product corrosponds to the regulations 2006/95/EG, 2004/108/EG and 2011/65/EU and conforms with the standards or standardized documents EN 61010-1:2010, EN 61010-2-051:2003 and EN 61 326-1:2006.

Explication of warning symbols

General hazard

This symbol indicates information which is essential for the safety of your health.

DANGER

WARNING

Failure to observe this information can cause damage to health and injuries.

This symbol indicates information which is important for ensuring that the appliance functions without any technical problems. Failure to observe this information could damage the calorimeter system.

ATTENTION

Contents

This symbol indicates information which is important for ensuring that calorimetric measurements are performed eﬃ ciently and for using the calorimeter system.

Failure to observe this information can result in inaccurate measurements.

Safety instructions

Read the operating instructions in full before starting up and follow the safety instructions.

Keep the operating instructions in a place where they can be accessed by everyone. Ensure that only trained staff work with the appliance. Follow the safety instructions, guidelines, occupational health and safety and accident prevention regulations.

The IKA® C 6000 global standards/isoperibol calorimeter system may be used only in conjunction with the decomposition vessels C 6010 or C 6012 for determination of the caloriﬁ c values of solid and liquid substances to national and international standards (such as DIN 51900, BS 1016 T5, ISO 1928, ASTM 5468, ASTM 5865 and ASTM 4809).

The maximum extra energy added to the decomposition vessel must not exceed 40,000 J (select the test mass accordingly). The permitted operating pressure of 230 bar (23 MPa) must not be exceeded. The maximum permitted operating temperature must not exceed 50 °C.

When burning substances containing metals, ensure that the maximum energy input is not exceeded!

Only ﬁ ll the decomposition vessel with oxygen to a maximum pressure of 40 bar (4 MPa). Check the pressure setting on the pressure reducer for your oxygen supply. Perform a leakage test before each combustion process (see section „Leaktightness testing“).

with a low vapour pressure (e.g. tetramethyl dihydrogen disiloxane) must not directly touch the cotton thread!

DANGER

example, is possible in the inner wall of the decomposition vessel.

Observe the accident prevention requirements applicable to the activity and the work station. Wear your personal protective equipment.

When handling combustion samples, combustion residue and auxiliary materials, please observe the relevant safety regulations. The following materials, for example, could pose a risk:

– corrosive – highly ﬂ ammable – explosive – bacteriologically contaminated – toxic

Please observe the relevant regulations when handling oxygen.

Warning: oxygen as a compressed gas is oxidising; intensively aids combustion; can react violently with ﬂ ammable materials.

DANGER

Tubes and screwed joints for oxygen must be kept free of grease.

Furthermore, toxic combustion residue in the form of gases, ashes or condensation, for

Do not use oil or grease!

Some materials tend to explode when combusted (e.g. due to formation of peroxides), which could cause the decomposition vessel to crack. The

IKA® C 6000 global standards/isoperibol calorimeter may not be used for testing explosive samples.

If the burning behaviour of a material is unknown, it must be tested before combustion in the decomposition vessel (risk of explosion). If you are burning unknown samples, leave the room or keep your distance from the calorimeter.

Benzoic acid may only be combusted in its pressed form! Flammable dust and powder must be ﬁ rst pressed. Oven-dry dust and powder such as splints, hay, straw etc. explode when combusted! Always wet these materials ﬁ rst! Highly ﬂ ammable liquids

Safety instructions

Combustion gases are hazardous to

health, therefore the venting hose must be connected to a suitable gas cleaning system or extraction system.

At the end of the work period, close the main valve for the oxygen supply.

Perform servicing work only when the equipment is depressurised.

When using stainless steel crucibles thoroughly check their condition after each experiment. If the material gets thinner, the crucible may catch ﬁ re and damage the decomposition vessel. Crucibles must not be used for more than 25 combustions for safety reasons.

The decomposition vessel is manufactured in accordance with the directive for pressure equipment 97/23/EC. This is indicated by the CE symbol with the ID number of the notiﬁ ed body. The decomposition vessel is a category III pressure device. The decomposition vessel has undergone an EC prototype test. The CE declaration of conformity conﬁ rms that this decomposition vessel corresponds to the pressure device described in the EC prototype test certiﬁ cate. The decomposition vessel has undergone a pressure test with test pressure of 33 MPa and a leakage test with oxygen at 3 MPa.

Refer also to the operating instructions for the C 6010/ 6012 decomposition vessel, see chapter „maintenance of the decomposition vessel“.

Decomposition vessels are experiment autoclaves and must be tested by a technical expert after each use.

We recommend that you send the decomposition vessel to our factory for inspection, and if necessary, repair after 1000 tests or after one year or sooner depending on use

A pressure test must be performed after a decomposition vessel has reached or exceeded the recommended number of ignition cycles. Once the pressure test has been performed a release code can be entered to enable the decomposition vessel to be used for further measurements (see the sections “Maintenance of the Decomposition Vessel” and “Inputting a Service Code”). The warning message will then disappear!

Note: You can then continue to use the device / decomposition vessel.

Contact the IKA® Service Department to perform the pressure test. Comply with the safety instructions in this respect. The user will be given speciﬁ c instructions on the relevant screen.

Individual use is understood here to include a series of experiments performed under roughly the same conditions in terms of pressure and temperature. Experiment autoclaves must be operated in special chambers

The decomposition vessels must undergo repeated tests (internal tests and pressure tests) performed by the technical expert. The frequency of these tests is to be determined by the operator on the basis of experience, type of operation and the material used in the decompositionvessel.

The declaration of conformity becomes invalid if mechanical modiﬁ cations are carried out to the experiment autoclaves or if tightness can no longer be guaranteed as a result of major corrosion (e.g. pitting by halogens).

In particular the threads on the pressure vessel and the union nut are subject to considerable stress and must therefore be checked regularly for wear.

The condition and function of the seals must be checked and ensured by way of a leakage test (see the operating instructions for the C 6010/ 6012 decomposition vessel, section „Leaktightness testing“).

For the purposes of these operating instructions a technical expert is someone

1. who guarantees to conduct the tests properly

on the basis of his training, knowledge and experience gained through practical work,

2. who is suﬃ ciently reliable,

3. who is not subject to any instructions in terms

of the test activity,

4. who has suitable test equipment if necessary,

5. who can provide appropriate proof of the

requirements listed in 1.

National directives and laws must be observed for operating pressure vessels!

Anyone operating a pressure vessel must keep it in a proper condition, operate it properly, supervise it, carry out the necessary maintenance and repair work immediately and implement the safety measures required in the circumstances.

Pressure vessels must not be used if they have defects which could pose a risk to staff or third parties.

If the maintenance, and especially the pressure testing, is not performed or is performed incorrectly, there is a risk the decomposition vessel may burst or an uncontrolled internal ﬁ re may occur at the electrodes which could burn away the seals (oxyacetylene torch effect), thus posing a risk to life and limb.

Only technical experts may perform pressure tests and service work on the decomposition vessel.

Safety instructions

Correct use

The IKA® C 6000 global standards/isoperibol calorimeter system is used for caloriﬁ c value determination of solid and liquid substances. This is done by placing a known quantity of a substance in a decomposition vessel which is surrounded by a water jacket. The sample is then combusted in an oxygen atmosphere . The caloriﬁ c value of the sample can then be calculated from the resulting increase in temperature, the sample

User instructions

In this chapter you can ﬁ nd out how to work through these Operating Instructions most effectively to be able to work reliably with the calorimeter system.

The instructions in the section „Safety instructions“ must be complied with.

The chapters are designed for you to work through them in order. The section „Transport, storage“ is relevant for system reliability and for ensuring high measuring accuracy. The section „Description of system components“ describes the system components,

mass and the known thermal capacity of the overall system.

The IKA calorimeter system is subject to the Pressure Vessel Directive 97/23/EC. Comply with the safety instructions accordingly.

For adaptation to individual laboratory tasks, use original IKA® consumables and accessories.

and the section „The standard calorimetric procedure“ describes the essentials of calorimetry.

The calorimeter system is ready to perform measurements once you have completed the procedures in the section „Setting up and commissioning“: - „Preparing a measurement“ and „Starting a measurement“.

Numbers 1, 2, 3 etc. indicate operating instructions in the following sections. These must always be carried out in the speciﬁ ed sequence.

C 6000 global standards/isoperibol

System properties

The calorimeter system IKA® C 6000 global standards/isoperibol is routinely used for determination of gross caloriﬁ c values of solid and liquid substances. The accessories of the system ensure customized adaptation to laboratory tasks.

The system is characterized by the following features:

• Relieves you of routine tasks through automated

measurement procedure

• Integral oxygen ﬁ lling/degassing

• Automatic detection of decomposition vessel

• Operation without the cooling unit: Connection

to a water faucet with the pressure valve IKA

C 25; temperature range 12 °C upto 27 °C;

water consumption per measurement about 4 l; water pressure max. 1 bar upto 1,5 bar.

• Operation with active cooling unit 17-27 °C

(e.g. IKA® KV 600; optional)

• Measurement and calculation of gross caloriﬁ c

value according to DIN 51900, ISO 1928, ASTM D240, ASTM D4809, ASTM D5865, ASTM D1989, ASTM D5468, ASTM E711

• Calculation of net caloriﬁ c value according to

DIN 51900, ASTM D240, ASTM D4809, ASTM D5865, ASTM D1989, ASTM D5468, ASTM E711

• Measurement range: max. 40.000 J (This

corresponds to an increase in temperature in the decomposition vessel of approx. 5 K).

• PC-operation of one or several calorimeters

(Software CalWin®)

• A sample rack can be connected

• USB printer port is available

Correct use

• Operating mode based on the adiabatic, isoperibolic or dynamic principle at 22 °C, 25 °C or 30 °C (the beginning temperature of the

water in the inner vessel) depending on the cooling water temperature.

Cooling water Mode of operation Mode of operation

temperature C 6000 global standards C 6000 isoperibol

12 °C bis 20 °C Adiabatic 22 °C Isoperibolic 22 °C Isoperibolic 22 °C Dynamic 22 °C Dynamic 22 °C 20 °C bis 23 °C Adiabatic 25 °C Isoperibolic 25 °C Isoperibolic 25 °C Dynamic 25 °C Dynamic 25 °C 23 °C bis 27 °C Adiabatic 30 °C Isoperibolic 30 °C Isoperibolic 30 °C Dynamic 30 °C Dynamic 30 °C

Differences between the room temperature and working temperature have an inﬂ uence on accuracy in dynamic mode; as a result, the working temperature should always be kept similar to the room temperature.

Warranty and liability

In accordance with IKA® warranty conditions, the warranty period is 12 months. For claims under the warranty please contact your local dealer. You may also send the machine direct to our factory, enclosing the delivery invoice and giving reasons for the claim. You will be liable for freight costs.

Please read these operating instructions carefully.

IKA

only consider themselves to be responsible for the safety, reliability and performance of the appliance when

• the appliance has been operated in accordance

with the operating instructions,

• only persons authorised by the manufacturer

interfere with the appliance,

• only original parts and original accessories are

used for repairs.

Transport and storage

Transport and storage conditions

The warranty does not cover worn out parts, nor does it apply to faults resulting from improper use, insuﬃ cient care or maintenance not carried out in accordance with the instructions in this operating manual.

The calorimeter system may be opened only by an authorised Service Agent or Customer Service Centre.

If service is required, we recommend that you contact our customer service department

Furthermore, we refer you to the applicable safety conditions and accident requirements.

is not responsible for damages or costs

IKA

resulting from accident, improper use of the device or impermissible modiﬁ cations, repairs or renovations.

The system must be protected against mechanical impact, vibrations, dust deposits and corrosive ambient air during transportation and storage. It is also important to ensure that the relative humidity does not exceed 80%.

The appliance must be completely emptied before storing and transportation.

In case of repair the device has to be cleaned and free from any materials which may constitute a health hazard.

User instructions

For this use the „certiﬁ cate of compliance“, download the form from the IKA® website www.ika. com.

If you require servicing, return the appliance in its original packaging. Storage packaging is not suﬃ cient. Please also use suitable transport packaging.

Unpacking

Please unpack the system components carefully and check for any damage. When you unpack the equipment, check for any damages which may have occurred during transportation.

In the case of any damage a fact report must be sent immediately (post, rail or forwarder).

Scope of supply

Calorimeter IKA® C 6000 global standards/isoperibol

• Calorimeter IKA® C 6000 global standards/isoperibol

• Attachment set

• Stylus for touch screen operation

• Discharge hose (1.5 m)

• Connection tube O

• Venting hose

• Mains connection cable

• Warranty card

• Water inﬂ ow pipe

• Water return pipe

• Operating instructions

Transport, storage, place of installation

Description of system components

Calorimeter IKA® C 6000 global standards/isoperibol

Interfaces

Lift

Decomposition vessel Stylus for

operating the touch screen

Touch Screen

Water ﬁ lter

Mains power supply

Water Oxygen

Description of system components

Hoses

• Discharge hose

(empty)

• Inﬂ ow pipe

(in)

• Return pipe

(out)

• Venting hose

(out)

Condenser

C 6000

• O2 connection tube

(in)

Commissioning

Place of installation

A constant ambient temperature is an important requirement for ensuring the high measuring accuracy of the system. The following conditions must therefore be fulﬁ lled at the place of installation:

•

No direct solar radiation

• No draughts (e.g. beside windows, doors, air

conditioning)

• Suﬃ cient distance to radiators and other heat

sources

• The minimum distance between the wall and

the rear side of the device must be at least 25 cm.

M8x1

C 6000

For operation of the system the following must be available at the place of installation:

- A power supply corresponding to the nameplates on the system components,

- An oxygen supply (99.95 % pure oxygen, quality

3.5; pressure 30 bar) with pressure gauge.

A shut-off valve for the oxygen supply must be installed. Observe the instructions on handling oxygen given in the chapter „Safety instructions“. Please read these operating instructions carefully.

consider themselves responsible for the

IKA

safety, reliability and performance of the appliance only when

• the device has been operated in accordance

with the operating instructions,

• The system must not have laboratory hardware

such as shelves, wire ducts, ring lines, etc. installed above it.

• The (constant) room temperature should be around 20 °C ... 25 °C.

• The system must be set up on a horizontal

surface.

Description of system components

• the speciﬁ cations for the place of

installation have been met.

Do not use distilled or demineralized water (increased risk of corrosion)! Fill the cooler

according to the cooler operating instructions. is recommended in drinking tap water quality. Mix in (max. 1 ml for 4-5 l of water) of the supplied water additive. Thus, the durability of the water is improved.

Connection to the condenser

Rear view without hoses attached

Make sure the ﬁ lter casing is always securely closed (see „Servicing and cleaning the ﬁ lter“)!

Insert the inﬂ ow pipe into the „IN“ port until it clicks home. Connect the other end of the pipe to the „OUT“ port of the condenser (water pressure max 1.5 bar).

Insert the return pipe into the „OUT“ port until it clicks home. Connect the other end of the pipe to the „IN“ port of the condenser.

Connection to the water

Operatrion is only allowed with the pressure valve IKA® C 25! The IKA® C 25 pressure valve is absolutely essential on the water faucet for operation of the calorimeter,

The connection „EMPTY“ is intended only for emptying the device, e.g. for transport purposes. In normal operation the discharge hose need not be inserted!

and it must be preset to an output pressure of approximately 1.5 bar. The valve is installed into the line of the water connection, see operating instruction IKA

C 25.

Commissioning

Connecting the oxygen supply

Insert the O2 connection tube into the calorimeter „IN“ port until it clicks home and connect the free end to the pressure reducer, using the adapters supplied if necessary. IKA® C 29. Removal entails the same operations performed in the reverse sequence.

Note: The O2 connection tube can be removed only after it has been depressurised.

Screw the venting hose to the screw coupling (8 AF) on the calorimeter and position the free end under the extractor hood or connect it to a gas washing device. Comply with the applicable safety regulations in this respect.

IKA® C 29

The venting hose discharges the combustion gases from the decomposition vessel after every combustion trial. When laying the venting hose ensure that it is not crushed or kinked.

Connection to the mains power supply

Check that the available mains power supply matches the mains power supply particulars listed on the rating plate.

O2 connection tube IN max. 4 MPa

Venting hose

Combustion gases are

DANGER

therefore the venting hose must be connected to a suitable gas cleaning system or extraction system.

hazardous to health,

Commissioning

Connection of peripherals

Standard setting : Baud rate: 9600

Note: While the peripheral devices are being connected, they and the calorimeter must be turned-off on the mains power switch!

RS232 PC: Serial connection for controlling the calorimeter using CALWIN or operating with serial printer C1.50.

Data bits: 8 Stop bits: 1 Parity: none Handshake: none

RS232 BALANCE: Interface for connecting scales (Mettler, Ohaus, Sartorius, Kern)

Standard setting : Baud rate: 1200 Data bits: 7 Parity: odd Stop bits: 1 Handshake: none

ETHERNET:

USB-DEVICE: USB interface (only for service).

USB-HOST: Interface for connection of a printer or with a USB mouse.

SAMPLE-RACK: Interface for connection of the C 5020 sample rack.

Network connection for data transfer via the network, e.g. to a network printer.

Commissioning

On/off switch

The device is switched on and off via the on/off switch located on the righthand side.

Switch the device off at the on/off switch. � Lift moves upwards.

Switch the appliance off only by using the menu commands. � Lift moves downwards.

Data may be lost if the

ATTENTION

other than by following the menu commands.

Note: Switch the device off at the on/off switch only when directed to do so by the menu command.

appliance is switched off

Commissioning

Display and operating elements

Explanation of the screen display

Schematic representation of he display components

After the IKA® C 6000 global standards/ isoperibol calorimeter has been switched on, the touch screen display is active and can be operated using the stylus or ﬁ nger.

Pos. Designation

A Tab C Arrow symbol, tabs D Arrow symbol, vertical scroll bar E Vertical scroll bar F Info line G Arrow symbol, horizontal scroll bar H Horizontal scroll bar I Control button

Other view-based presentations of display components are described in the relevant section.

Display and operating elements

List display

The contents of the screen display are often distributed over several tabs. You can switch between tabs at any time by clicking on them. Thus for instance the screen display during the calorimetric standard procedure consists of the three views „Measurements“, „Device“ and

„Graphics“.

Status symbols

Green tick Measurement completed but not yet evaluated, or selection acknowledgement.

Pocket calculator Measurement completed end evaluated, evaluation inputs can no longer be changed.

Blank tick Measurement prepared but not yet performed.

Report ﬁ eld

Yellow X Field property not selected, or cancelled before ignition.

Red X Cancellation after ignition.

Circle Measurement selected.

List displays and report ﬁ elds have scroll bars. Clicking on the pale areas of the scroll bar scrolls the list display or report ﬁ eld. Clicking in the dark area and dragging it allows you to move continuously through the display, as does clicking on the arrow symbols and maintaining the selection.

Display and operating elements

Note: Greyed-out ﬁ elds cannot be selected.

The view „Graph“ shows the temperature by time.

The most important actions available at any point in time are gathered together as clickable buttons along the bottom edge of the screen.

Switch

Selection box

Switch

To initiate an action it is suﬃ cient to click on one of the discrete areas showing the relevant images or text. For instance during the „Preparation for measurement“ dialogue the most important actions are explained below.

Weighted sample Permits manual input of a weight value using the virtual keyboard.

Calibration Selection ﬁ eld for marking a calibration (on/off).

Decomposition vessel Manual selection box when decomposition vessel detection is inactive.

Name Alphanumeric editable ﬁ eld

User Alphanumeric editable ﬁ eld

Properties Alphanumeric editable ﬁ eld

IKA® thread

Selection box which allows a selection list to be opened.

Display and operating elements

Weighted sample

Input of a numerical value, such as weighted sample:

The entire area with the exception of the „Balance“ button is available to be clicked here. A numerical virtual keyboard is opened and can be used to input the value:

After the virtual keyboard has been closed with „OK“, the value in the input ﬁ eld is loaded. Alternatively, clicking on the „Balance“ button automatically loads a value from a connected balance.

Selection box

Shift key for upper and lower case letters and special characters

Input of an alphanumeric value, such as „Designation“ :

Here again the entire area is available to be clicked. A complete virtual keyboard is opened.

Note: The maximum input is 23 characters.

After the virtual keyboard has been closed with „OK“, the value in the input ﬁ eld is loaded.

Select from a selection box, e.g. for the ignition aid:

Display and operating elements

After the selection box has been clicked, a list of the options is displayed. The option that is clicked is selected.

Single selection ﬁ eld, such as calibration :

Clicking on the entire area allows the prepared measurement to be marked as a calibration.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Switching on the device

The IKA switched on with the On/off switch. The cover opens automatically. A start screen appears for about 30 seconds, during which the hardware is initialised and the software is loaded.

System test

The system test is performed automatically every time the IKA switched on.

During the system test the start screen is shown again; clicking on the „Show details“ button provides detailed information.

C 6000 global standards/isoperibol is

Safety instructions regarding information on and activation of the calorimeter are then shown on

the IKA

Homepage.

The system test includes the following steps:

- Testing the external water circuit with the circulation pump and heater (approx. 30 to 45 seconds).

- Testing the internal water circuit with the condenser and water supply, plus the heater once again (approx. 30 to 45 seconds).

- Testing whether the temperature of the cooling waters is correct for the selected function of the

IKA® C 6000 global standards/isoperibol. (ap-

prox. 60 to 180 seconds).

If any one of these steps is not performed successfully, the system test stops with an error message. After all the components have been checked the system test can be restarted the same as after a manual cancellation. To do this, press the „Restart“ button.

With the system test in standby, no measurements can be made. However it is possible to select some menu options.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

If the cooling water conditions are not correct for the selected function of the IKA® C 6000 global standards/isoperibol, you can select a different function from those currently available. Make sure however that the system conditions are stable.

The following are the default modes that are set:

- Adiabat 22

- Isoperibol 22

If the system is changed to a different function it must be recalibrated.

(IKA® C 6000 global standards) (IKA® C 6000 isoperibol)

Switching off the device

First commissioning

At ﬁ rst commissioning you must register a decomposition vessel: To do this, press „Menu on“ button. Select the „Function...“ menu item. Select the „New decomposition vessel“ tab. Follow the instructions on page 37.

„End“: This saves the measurements taken during the day; the cover of the calorimeter is closed and the software shut down. After this,

switch off the calorimeter and all the accessories.

Never switch the device off without previously having run „End“, otherwise data may be lost!

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Die kalorimetrische Standardprozedur

Determining the caloriﬁ c value

Test condition

Combustion is carried out in a calorimeter under speciﬁ c conditions. The IKA® C 6000 global standards/isoperibol is ﬁ lled with a weighed fuel sample, the fuel sample is ignited and the temperature increase in the calorimeter system measured.

The speciﬁ c caloriﬁ c value of the sample is calculated as follows:

• Weight of fuel sample

•

Heat capacity (C-value) of calorimeter system

•

Calculated temperature increase of water in the calorimeter system

For complete combus on the decomposi on vessel is ﬁ lled with pure oxygen (quality

3.5). Adjust the pressure of the oxygen atmosphere in the decomposi on vessel at 3 MPa (possible max. 4 MPa). The exact determina on of the gross caloriﬁ c value of a substance requires that the combus on proceed under precisely deﬁ ned condi ons. The applicable standards are based on the following assump ons:

•

Depending on the start temperatur that is set, the

temperature of the fuel before the combustion is

20 °C upto 30 °C.

• The water contained in the fuel before the

combustion and the water that is formed when compounds comprising the fuel containing hydrogen undergo combustion is present in a liquid state .

• No oxidation of the atmospheric nitrogen has

taken place.

The gaseous products after combustion consist

of oxygen, nitrogen, carbon dioxide, sulfur dioxide and the oxidation products of the sample.

• Solid substances may be formed (for example

ash).

The gross caloriﬁ c value Ho is formed as the quotient of the amount of heat liberated upon total combustion of a solid or liquid fuel and the weight of the fuel sample. The compounds comprising the fuel that contain water must be present in liquid state after the combustion.

The formula for the caloriﬁ c value is

Ho = (CV * DT – Qext) / m

where

Ho Caloriﬁ c value m Mass of the sample DT Measured and corrected increase in

temperature

Qext All external energy originating from

the ignition wire, the ignition aids, the combustion aids and the formation of acids

CV C value (thermal capacity) of the calorimeter

The heat value Hu is equal to the gross caloriﬁ c value less the energy of condensation of the water that was contained in the fuel and was formed by the combustion. The heat value is the more important quantity for technical purposes, since in all important technical applications, the heat value is the only quantity that can be evaluated in terms of energy.

For information on the fundamental principles of calculation for gross caloriﬁ c value and heat value, please refer to the applicable standards (for example: DIN 51 900; ASTM D 240; ASTM D 1989, ISO 1928).

Often, however, the combustion products that form the basis of the standards are not the only products that are formed. In such cases, an analysis of the fuel sample and the products of combustion are necessary to provide data for a correction cal-culation. The standard gross caloriﬁ c value is then determined from the measured gross caloriﬁ c value and the analysis data.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Corrections

As determined by the system, during a combustion experiment, not only is

heat generated from the combustion of the sample,

but heat also occurs in the form of extraneous energy.

This may ﬂ uctuate considerably in proportion to the heat energy of the fuel sample.

The combustion heat of the cotton threat that ignites the sample and the electrical ignition energy would result in distorted values of the measurement. This effect is taken into consideration in the calculation with a correction value.

Substances with low ﬂ ammability or substances that burn poorly undergo combustion in combination with combustion aids. The combustion aid is ﬁ rst weighed and then added to the crucible with the sample. From the weight of the combustion aid and its known speciﬁ c gross caloriﬁ c value, it is then possible to determine the quantity of heat that is introduced thereby. The result of the experiment must be corrected by this amount of heat.

The C 14 disposable crucible is a combustible crucible that can be used instead of a traditional crucible. The disposable crucible undergoes total combustion with no residue. If a disposable crucible is used, there is then no need for a cotton thread. The crucible is in direct contact and is ignited by the ﬁ xed ignition wire of the decomposition vessel.

The sample is weighed directly into the disposable crucible. In most cases, no additional combustion aid is necessary because the disposable crucible itself acts as the combustion aid.

Acid correction

Almost all substances to be analyzed contain sulfur and nitrogen. Under the conditions that prevail during calorimetric measurements, sulfur and nitrogen undergo combustion and form SO

, SO

and NOX. Sulfuric and nitric acid arise in combination with the water resulting from combustion and humidity. Heat of solution is also generated. To obtain the standard gross caloriﬁ c value, the effect of the heat of solution on the gross caloriﬁ c value is corrected.

To obtain a deﬁ ned ﬁ nal status and to record all acids quantitatively, distilled water or another suitable absorption solution is placed in the decomposition vessel before the trial according to the relevant standards. With this absorption ﬂ uid and the combustion water, the combustion gases form acids. After the combustion, the decomposition vessel is thoroughly washed with distilled water so as to collect the condensate that has settled on the inner wall of the vessel as well. The solution obtained in this manner can now be examined with a suitable peripheral detection device for aqueous decomposition into the respective acid content. For more information on this subject, please contact IKA®‚ or your nearest authorized dealer.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Note on the sample

The calorimeter system IKA dards/isoperibol is a precision measuring instrument for the routine determination of caloriﬁ c values of solid and liquid substances. Exact measurements can however be achieved only if the individual steps of the trial are performed with care. The procedure as described in the „For your safety“ section and in the following sections must therefore be adhered to exactly.

C 6000 global stan-

• For substances with low ﬂ ammability or low

caloriﬁ c substances use combustion aids (see „Accessories“). Before the capsules or the combustion bag is ﬁ lled with the substance to be determined, it must be weighed in order to determine the additional extraneous energy introduced into the system from the weight and the gross caloriﬁ c value. This is taken into consideration with QExtern2. The amount of combustion aid should be as little as possible.

DANGER

A few points should be noted in respect of the substances to be combusted:

• Normally, solid substances can be burned direct-

ly in powder form. Rapidly burning substances (for example benzoic acid) must not undergo combustion in loose form. Benzoic acid must only be burned in the form of pellets! Combustible dust and powder must be compressed into pellets before combustion. Oven-dry dust and powder such as wood chips, hay, straw etc. burn in an explosive manner! They must be moistened ﬁ rst! Readily combustible liquids with a low vapor pressure must not be come in direct contact with the cotton thread (e.g. tetramethyl dihydrogen disiloxan).

Rapidly burning substances tend to squirt. Such

substances must be pressed into tablets before combustion. Suitable for this is e.g. the

IKA®-pelleting press C 21, see „Accessories“.

If you are burning unknown samples, leave the room or keep well away from the calorimeter.!

• Under the conditions that prevail during calori-

metric measurements, sulfur and nitrogen undergo combustion and form SO2, SO3 and NOX. Sulfuric and nitric acid arise in combination with the water resulting form combustion. Heat of solution is also generated. This heat of solution is taken into consideration in calculating the gross caloriﬁ c value. In order to quantitatively record and determine all acids that have been formed, about 5 ml of distilled water or another suitable substance can be added to the decomposition vessel before the experiment.

The calibration of the system must have been performed in accordance with the instructions!

After combustion, the water that was added, is collected and the decomposition vessel is rinsed throughly with distilled water. The rinsing water and the solution formed from the water that was added are combined and the acid content of the combined solution is examined. If the sulfur content of the combustion aid and the nitric acid correction are known, the water does not need to be analyzed.

• Most liquid substances can be weighed direct-

ly into the crucible. Liquid substances exhibiting turbidity or containing water that will settle out must be dried or homogenized before they are weighed in. The water content of these samples must be determined.

• Highly volatile substances are placed in combus-

tion capsules (gelatin capsules or acetobutyrate capsules, see „Accessories“) and undergo combustion together with the capsules.

To increase the service life of parts to wear and tear (O rings, seals etc.) we recommend to work with water added to the experiment as a matter of general principle.

WARNING

gen content must not be combusted in the C 6010 decomposition vessel; instead use the C 6012 decomposition vessel.

Caution! Risk of corrosion!

Substances with high halo-

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Complete combustion

To correctly determine the gross caloriﬁ c value, it is of fundamental importance that the sample undergoes complete combustion. After each experiment, the crucible and all solid residues must be examined for any signs that combustion was not complete.

In case of using substances tending to squirt it is not possible to ensure complete combustion. Substances with low ﬂ ammability (substances

Adjustment (only IKA® C 6000 global standards)

If the device is to be operated in adiabatic function, prior adjustment in the respective tempera-

ture range (22°, 25° or 30°) is necessary.

Adjustment must be performed in the following cases:

• When ﬁ rst commissioning the calorimeter and when its place of installation has been changed.

• If the measuring times for adiabatic measurements are regularly in excess of 15-20 minutes.

• If adiabatic measurements are frequently aborted because the time limits for the pre trial or main trial have been exceeded.

Procedure for adjustment:

• Set the function depending on the desired temperature range (Adjustment_22, Adjustment_25, Adjustment_30).

• Prepare for a formal single measurement. An

with a high content of mineral matter and low-caloriﬁ c substances) will often undergo complete combustion only with the aid of combustion capsules or combustion bags (C 10/ C 12 see „Accessories“). It is also possible to use liquid combustion aids such as paraﬃ n oil,. The combustion aids as well (for example the cotton thread) must undergo complete combustion. If unburned residues are left over, the experiment must be repeated.

empty crucible is used. The ﬁ ctitious value „1“ is entered for the weighted sample.

• Start the measurement.

• Adjustment starts automatically and is comple-

ted within approx. 1 hour. After the adjustment has been successfully completed the adjustment value appears as an increase in temperature in the measurement record for the measurement that was performed.

After successful completion of adjustment the device automatically changes the mode of operation to the corresponding adiabatic mode.

Adjustment_22 Adiabatic_22 Adjustment_25 Adiabatic_25 Adjustment_30 Adiabatic_30

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Calibration

To ensure precise, reproducible results of the measurement, the calorimeter system is calibrated after it is initially placed in service, after service jobs, after parts are replaced and at speciﬁ c time intervals. During calibration, the heat capacity of the calorimeter system is redetermined.

Regular calibration is absolutely essential to obtain accurate measurements!

For this purpose, a speciﬁ c quantity of a reference substance undergoes combustion in the IKA® C6000 global standards/isoperibol under the conditions of the experiment. Since the gross caloriﬁ c value of the reference substance is known, it is possible after combustion has occurred to calculate the heat capacity based on the increase in temperature of the calorimeter system. The reference substance for calorimetry on an international level is benzoic acid of the National Bureau of Standards (NBS Standard Sample 39 J) with a guaranteed gross caloriﬁ c value.

The thermal capacity is derived from the formula for the caloriﬁ c value.

Depending on the standard used, determination of the thermal capacity may require performance of several measurements. Using various statistical criteria the average value is calculated and is used as the thermal capacity for subsequent determinations of caloriﬁ c values.

For more detailed information on calibration please see the relevant standards. If the IKA C 6000 global standards/isoperibol is operated with several different decomposition vessels, you will need to determine the heat capacity of the system for each decomposition vessel. The parts of each decomposition vessel must then not be swapped with parts from other vessels. In addition the thermal capacity depends to a small extent on the measurement procedure used. The thermal capacity determined for each measurement procedure that is used.

CV = (Ho * m + Qext) / DT

Instructions on calibration

Ensure that calibration is carried out under the same conditions as the subsequent tests. If substances are used in the decomposition vessel in combustion tests (e.g. distilled water or solutions), you must use exactly the same amount of this substance for calibration.

For determination of caloriﬁ c values the increase in temperature must be about as great as for the calibration (e.g.: 2 tablets = approx. 1 g benzoic acid =˜ 3 K). The optimum sample quantity must de determined by several trials where necessary.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Preparing measurements

The term „measurements“ below refers to both the measurements to calibrate the calorimeter system (calibration measurements) and the actual measurements for determining the caloriﬁ c value. The difference lies mainly in the evaluation (see

The following preparations must be performed in order to prepare the system to take a measurement:

With the decomposition vessel open, attach a

1. cotton thread to the centre of the ignition wire using a loop.

2. Weigh out the substance directly into the

crucible with an accuracy of 0.1 mg. If necessary put some distilled water or a solution into the decomposition vessel.

The maximum acceptable weight of the sample

that is added is restricted to a value of 5 g.

To prolong the life of wearing parts (o-rings, seals, etc.) we recommend that you always work with a water trap.

As a rule the weighted sample must be selected in such a way that the temperature increase during the measurement is below 5 K and comes close to the temperature increase

the section „Working with the device“ and „Settings“), whilst preparation and performance make virtually no difference.

of the calibration (max. extra energy: 40,000 J). Failure to observe these instructions could result in damage to the decomposition vessel.

If the maximum energy input is exceeded, we recommend that the calorimeter is sent back for repair.

When working with unknown substances, at ﬁ rst select only very small weighted samples (approx. 0.25 g) to determine the energy potential. If you are burning unknown samples, leave the room or keep well away from the calorimeter.

If substances such as distilled water or solutions are added to the decomposition vessel for combustion tests, you must use exactly the same amount of those substances during calibration.

Refer also to the operating instructions for the C 6010/C 6012 decomposition vessel.

A complete measurement can be performed in accordance with the following steps without making further changes to the settings:

Click on the „Preparation“ button in order to prepare for a new measurement. The following screen appears:

With automatic decomposition vessel detection: To make preparations for a valid measurement you must input at least the weight of the sample. Click on the „Weighted sample“ selection ﬁ eld; a virtual keyboard appears.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Click on the necessary ﬁ gures and the decimal point, and press OK to conﬁ rm the input.

You can also load the weight from a connected balance or request it by clicking on the „Balance“ button. The value is then entered automatically.

All other inputs are optional.

The default is that the decomposition vessel is not selected manually but is identiﬁ ed when it has been hung in the calorimeter.

Note: weight must be < 5 g.

An alphanumeric virtual keyboard appears for the input options „Designation“, „User“, „Properties“:

Click on OK to complete the respective input.

There is a special procedure for the designation: the default is that the designation for a sample is constructed from the current date and a sequential number. For instance JJMMTT07 denotes the seventh sample processed on TT.MM.JJ. This designation is also displayed the next time. If the last characters of the designation is numeric, this is incremented by one. You can stop the use of the user-speciﬁ c designation again every time: call up the „Designation“ dialogue, delete the designation and click on „OK“.

Highlight the „Calibration“ ﬁ eld if you wish to perform a calibration.

The scroll bar allows you to access additional input ﬁ elds for inputting the external energies. If no special application procedures must be observed

you can here specify use of the „IKA

ignition

thread“, „User-deﬁ ned“ = 0, „User-deﬁ ned“ = 0 default settings. This means that the default IKA

ignition thread will be used as the ignition aid and that no further combustion aids will be used.

Simulation

In some circumstances it may be helpful to check some caloriﬁ c value tests or to calculate possible test results without actually performing the combustion test. This is particularly useful when a calibration has been carried out instead of a caloriﬁ c value determination or vice versa. This can be corrected by simulation using the increase in temperature from the wrongly interpreted measurement. The decomposition vessel used can be selected after activating the simulation.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

You can input values between 0 and 20,000 Joules for „External energy 2“. You can also select speciﬁ c types of combustion aids from the list.

In such cases you must enter the weight of this combustion aid so that the external energy can be calculated.

You can also load these weights directly from a balance: The most ﬂ exible way is to click on the relevant „Balance“ button. The value is then loaded to the right place. If the balance cannot receive commands, still click on the „Balance“ button and then press the „Transfer“ button for the balance.

Simulated measurement: If the measurement is marked as simulation, the increase in temperature can be set by the user. This means that the results can be veriﬁ ed later.

You can also load weights without clicking on the „Balance“ button: If the „Preparation for measurement“ screen has not yet been opened, open it. The weights are input in the following sequence: Weight of combustion aid 2 (if deﬁ ned) Weight of the sample Weight of combustion aid 3 (if deﬁ ned).

After all inputs have been performed in the „Preparation“ screen, click on OK; the display alongside will appear.

Note: When working without automatic decomposition vessel detection the „Start“ button is active immediately the preparation has been completed!

Charging the decomposition vessel

Please refer to the operating instructions for the C 6010/ C 6012 decomposition vessels.

Calorimetric procedure without automatic decomposition vessel detection

Firstly the automatic decomposition vessel detection must be deactivated (see „New decomposition vessel“ tab, page 37).

The procedure is the same as the standard procedure with the following exceptions:

Preparation for measurement

For preparation for measurement you must select a decomposition vessel from the list.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Starting the measurement

After the preparation for measurement, a message appears requiring secure closure of the decomposition vessel, despite there being no decomposition vessel hung in the calorimeter cover. You should acknowledge the message when you have hung the decomposition vessel in the calorimeter cover. If you accidentally press the „Start“ button before you have hung a decomposition vessel in the calorimeter you will receive an error message when you close the calorimeter cover.

Securely screw the decomposition vessel together and hang it in the calorimeter cover, see operating instruction decomposition vessel C 6010/6012.

The decomposition vessel must be positioned centrally within the ﬁ lling head of the inner cover. When it is correctly positioned you can feel it click home.

Sensor area for decomposition

vessel detection

An instruction window now appears: „Check that the decomposition vessel is securely closed“. Click on the „Acknowledge“ button to acknowledge the instruction.

When the decomposition vessel has been hung in the calorimeter it is identiﬁ ed by an RFID transmitter (Rﬁ d: radio frequency identiﬁ cation). The decomposition vessel is ﬁ tted with a transponder which is read as it passes over the sensor area. For this the decomposition vessel is passed over the sensor area. A beep sounds when detection has been successful.

You can then click on the „Start“ button.

Note: When working without automatic decomposition vessel detection the „Start“ button is active immediately the preparation has been completed!

Working with the IKA® C 6000 global standards/isoperibol calorimeter

The screen switches to the „Device“ tab.

You can trace the progress of the measurement both in this tab and also in the „Graphics“ tab. In the area above the record, progress bars for the individual phases of the measurement are shown. Once the measurement has been correctly completed the calculated caloriﬁ c value and the calculated thermal capacity also appear here.

You can cancel the measurement at any time by clicking on „Cancel“.

After a measurement, the screen switches automatically to the „Measurements“ tab. You can now evaluate the completed measurement. You can also delay the evaluation until later and after opening and cleaning the decomposition vessel proceed to prepare and perform the next measurement as described.

Instructions for cleaning the decomposition vessels can be found in the section „Cleaning the system“, see page 48.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Evaluation

Click on auf the measurement to be evaluated. Then click on the „Evaluation“ button. The following screen with several tabs appears. The parameters for the evaluation are distributed across the „Caloriﬁ c value“ and „Heat value“ tabs.

Note: The „Heat value“ tab is not shown at calibration.

Now you can input the parameters required for the standard that was selected (here: DIN 51900 (2000)). The purpose and meaning of these parameters and the relevant calculation formulae for the complete results can be found in the respective standard. The screens are adapted to suit the standard that was selected.

When you have completed the inputs, switch to the „Results form“ tab.

Here the complete data and results of the measurement are presented. You can save and print this form. Click on OK to ﬁ nish the evaluation. On each occasion you can correct and extend the evaluation for these measurements by looking them up in the daily list or the library and selecting „Evaluation“.

You can view the trial parameters once again under the „Sample“ tab.

Working with the IKA® C 6000 global standards/isoperibol calorimeter

Click the „Menu on“ button to display the menu.

Use the scroll bar to display all the menu options.

If a measurement has been prepared or selected you will see only a restricted selection of the menu options.

„Display/hide information ﬁ eld“: an information ﬁ eld above the button toolbar is displayed or hidden.

„Help“: This added the „Help“, „Servicing“ and „Hardware details“ tabs to the screen view and displays an information window with system information.

„Print list“: The list of measurements currently displayed is printed (not in combination with serial printer C1.50!).

„Display/hide sample rack“: A tab with the assignment and status of the sample rack (accessories) is displayed (see page 46).

„Delete marked measurement“: This deletes the selected measurement from the displayed list and also from the library. Sequential measurements and those associated with a result cannot be deleted.

„End“: This saves the measurements taken during the day; the cover of the calorimeter is closed and the software shut down. After this, switch off the calorimeter and all the accessories.

Never switch the device off without previously having run „End“, otherwise data may be lost!

Library

The library screen shows all the measurements within the memory location \FFSDISK\C6000\ tests.

In the left hand selection ﬁ eld you can also extend an directory tree which is organised by years and months. Within each month the right hand window then displays the measurement organised by days.

Select the desired day and click on the „Evaluation“ button.

The list of the measurements on the selected day is displayed. You can select a measurement then click on the „Evaluation“ button for the measurement to evaluate it for the ﬁ rst time or to reevaluate it, see page 37 „Evaluation“.

Working Mode, Vessels and Calibrations

Alternatively you can use the actions provided by the menu as described above.

Once you have completed the work on the measurements for the selected day, switch back to the „Library” tab. Once you have completed all the library work,

click on the „Back“ button.

For management of the decomposition vessels and their associated settings, click on the „Menu“ button and then the menu item „Function, decomposition vessels and calibration“.

IKA® C 6000 global standards

C 6000 isoperibol

IKA

This list shows all the decomposition vessels assigned to the calorimeter. The mark on the left in each line shows whether the decomposition vessel is actually being used. For reasons of safety decomposition vessels cannot be deleted. Each decomposition vessel is uniquely identiﬁ ed by its RFID tag. In addition the C values for the current function, the date of last calibration and the number of ignitions are displayed. Click on the „Check calibration for selected decomposition vessels and functions“ button. Three additional tabs appear listing the calibration, a check chart of the calibration and the calibration statistics for the selected function and decomposition vessel.

You can select the function of the IKA® C 6000 global standards/isoperibol from a list.

If you wish to change the function for subsequent measurements, click on the „Change“ button to start the system check for the new function. Alternatively you can select a decomposition vessel from the updated list of decomposition vessels.

„Calibration“ tab

You can select each calibration individually and click on the „Select“ button, or double click on the calibration to reference this calibration in the calculation of the C mean value (or to exclude it if it had previously been selected). Then switch to the „Statistics“ tab.

„Statistics“ tab

Average value, standard deviation and maximum deviation relate to the calibration selected. Click on the button „Load“ to load the average value of the calibrations as the new C value. You can also press the „Set“ button to input the new C value manually. Press the „Conﬁ rm“ button to load the value. Press the „Print statistics“ button to print the complete statistics on a connected printer. Press the „Delete statistics“ button to delete the selection from the statistics that are referred to during calibration. Click on the „Save“ button, to use all the changes for the selected decomposition vessel and the selected function. If you click on the „Undo“ button, you can completely undo these changes. If you press „Done“ you save the inputs, exit this menu, and revert to the overview of the measurements. If you press „Save“ you remain in this menu and can select other actions (such as „Check chart“).

„Check chart“ tab

This displays the graphics for the selected calibration with the upper and lower warning and control limits. The scaling is adapted automatically.

LWL/UWL and LCL/UCL The LWL and UWL (lower and upper warning limits) deﬁ ne the area within which 95% of the calibration measurements should lie. The LCL and UCL (lower and upper control limits) deﬁ ne the area within which 99.7% of the calibration measurements must lie in order for the device to fulﬁ l statistical controls. This means that if 5% of the points (one in twenty) lie outside the warning limits or any points lie outside the control limits, the calorimeter must be veriﬁ ed. Calculation of the limits, where sigma = standard deviation; sqrt = square root and N = number of measurements:

UCL – mean value + 3xsigma / sqrt(N) UWL – mean value + 2xsigma / sqrt(N) LWL – mean value – 2xsigma / sqrt(N) LCL – mean value – 3xsigma / sqrt(N)

If you click on „Show all“, all calibrations not just those selected are shown in the graphics. This is useful if there are several series of calibrations or additional check calibrations. You can use the check and warning lines to decide whether the C value has shifted and therefore a reselection and recalculation is necessary.

To exit this menu you must use the arrow keys to switch to the „Decomposition vessels“ tab. Exit with „Done“.

If you wish to print the check chart, press the „Print“ button.

„New decomposition vessel“ tab

The „New decomposition vessel“ tab offers the following options :

Use automatic decomposition vessel ID detection: automatic decomposition vessel detection is an important precondition for safe working with decomposition vessels. Deactivation is not recommended but may occasionally be necessary for repair purposes.

Servicing the decomposition vessel

New decomposition vessel: click on the „New decomposition vessel“ button to assign a new decomposition vessel to the calorimeter. Place the new decomposition vessel over the sensor face. The RFID tag is detected and displayed in the „RFID ﬁ eld (automatic decomposition vessel detection“. Click on the „Serial number“ ﬁ eld and enter the engraved serial number for the new decomposition vessel. Finally click on the „Add“ button.

Please note that the addition of a new decomposition vessel cannot be undone.

Servicing the decomposition vessel: when you wish to start using a decomposition vessel again after servicing or repair, click on the „Servicing the decomposition vessel“ button.

You will now see the name and RFID ID of the selected decomposition vessel. Input the Service Code for it and click on the „Renew“ button. You will receive your service code once you have re-

gistered on the IKA® homepage. Switch to the „Decomposition vessel“ tab and click on the „Save“ button, then on the „Done“ button to revert to the main screen.

Evaluation

Other settings

If you require settings different from the default settings you can create those settings in a screen with seven tabs.

„Evaluation“ tab

Default evaluation: NAfter a measurement has

been completed, as a rule the results are extended and corrected in accordance with the applicable national or international standards.

Select from the list:

The selected standard will be applied to all the subsequent measurements. Evaluated measurements will comply with this standard: if a measurement has already been evaluated, the evaluation procedure will be used for any subsequent re-evaluation. Otherwise the current setting for the evaluation procedure will be used.

Measurements evaluated previously are not affected by this change.

Display unit: this sets the display units for the calorimetric results. Select them from the list.

The selected range of units applies to the display of energy values [J], caloriﬁ c values [J/g] and thermal capacities [J/K].

Reference caloriﬁ c value: Input here the caloriﬁ c value of the substance used for calibration. As a rule this substance is benzoic acid with a caloriﬁ c value certiﬁ ed by the manufacturer.

Measurement

Other Settings

„Measurement“ tab

Double determination: If this menu item is

activated, two measurements are basically combined into a group. The suﬃ x ЖRP_x is added onto the end of the testing code. (X = 0, 1 or 2). In the process, the ﬁ rst two caloriﬁ c values are checked to ensure they fall within 120J. If the difference between them is greater than 120J, a warning appears that a third measurement is required. The third measurement must then fall within 120J of one of the ﬁ rst two measurements. If the ﬁ rst two measurements fall within 120J of each other, the next measurement creates a new group.

Load parameters: Some parameters from the previous measurement (Name, User, Properties, ignition and combustion aid) can be retained when preparing for a new measurement.

No venting: The venting of the decomposition vessel after measurement is skipped in order to facilitate determination of the products of combustion.

Restart: If a measurement is cancelled prior to ignition, after rectifying the cause of the cancellation you can restart the measurement without having to prepare a new measurement.

O2 purging: Two ﬁ lling and emptying cycles are performed before ﬁ lling with oxygen, in order that purging with oxygen will reduce the proportion of nitrogen remaining in the decomposition vessel to an insigniﬁ cant residue.

Ignition aids

Water supply line port: The calorimeter is operated using a water supply; the internal temperature regulation parameters must be adjusted accordingly.

„Ignition aids“ tab

You can use an ignition aid to ensure that samples are correctly and reliably ignited. The external energy contributed by the aid must be included when calculating the caloriﬁ c value.

Add new ignition aid

Ignition aids:

Select an ignition aid from the list:

Note: These predeﬁ ned ignition aids cannot be changed.

An energy value is deﬁ ned for each ignition aid; this value is included automatically in the calculation of the caloriﬁ c values. If you select „userdeﬁ ned“ this energy value can also be changed at the preparation of each individual measurement. The default setting is „IKA ignition thread“ You can modify the list or add new ignition aids to it.. Select an ignition aid and click on the „Edit“ button to activate the input ﬁ elds for this.

You must change the name and the energy values. Click on „Load“ to modify the selected ignition aid. Click on „Add“ to add a new ignition aid to the list with the data that were input. Click on „Cancel“ to make no changes.

Other Settings

Combustion aid

„Combustion aids“ tab

There are two different combustion aids available for use in order to achieve correct combustion of samples. The external energies contributed by the aids are input or calculated at preparation of the sample and are included automatically in the calculation of the caloriﬁ c values. A list is provided for the most commonly used combustion aids, showing their caloriﬁ c values. If one of these combustion aids is used during preparation of the sample you need only input its weight or load it from the balance.

You can modify the list or add new combustion aids to it. Select a combustion aid from the list and click on the „Edit“ button to activate the input ﬁ elds for it . You can the change the name and the caloriﬁ c value. Click on „Load“ to modify the selected combustion aid. Click on „Add“ to add a new combustion aid to the list with the data that were input. Click on „Cancel“ to make no changes.

Balance

„Balance“ tab

You can select the balance from a list.

The default values for the serial interface are set for each selected type of balance. If necessary you can change the values for Baud rate, parity, data bits and stop bits. Click on „OK“ to use all the changed settings for the subsequent calorimetric procedures. Click on „Cancel“ to leave all the settings unchanged.

Other Settings

Printer

„Printer“ tab

Select a suitable printer from the list.

USB PCL printer

You can connect many type of USB printers which the use the PCL printer language to the C 6000. We recommend the HP Business Inkjet 1200 or its successor models.

Network printer

When you have selected a network printer you must then input the network address of the printer. In addition the C 6000 must be connected to the company‘s network.

Serial printer

A serial printer can be connected to PC port of the C 6000. This printer allows printing of the sequential record of the measurements. No other printing operations can be performed with this

printer. We recommend the IKA® C 1.50 printer with the serial settings 9600-8-N-1.

Other

„Other“ tab

Language:

You can select the language from a list. The default language is English. The next start of the device makes the change of language effective.

Year, month, day, hour, minute:

These settings become effective when you click on the „OK“ button. The input ﬁ eld for the hour uses the 24-hour format.

Other Settings

Speaker:

Activation of the speakers.

Other Settings

Help ans servicing system

Help

You can activate and display the „Help“ tab at any time to obtain detailed information on the current status and available actions for the calorimeter. Click on either the „Help“ button in the information ﬁ eld or on the „Help“ menu item and switch to the „Help“ tab. The „Hardware details“ and „Servicing“ tabs are also displayed as well as the „Help“ tab.

The left hand selection ﬁ eld displays an extendable list of all statuses, views and fault options. The current status or fault is selected automatically and the explanation for it shown in the upper right selection ﬁ eld. If this information is insuﬃ cient you can navigate the left hand selection ﬁ eld further to obtain more information.

Click on the desired topic then click on the right hand ﬁ eld with the arrow symbol.

Here you can obtain detailed information on the topic. Click on the left hand ﬁ eld with the arrow symbol, to revert to the overview of topics and if necessary select a different topic.

Help and servicing system

Maintenance

Depending on the current status and the information obtained you can perform various actions using the buttons in the „Servicing“ tab.

Filling with O2:

The decomposition vessel can be ﬁ lled with oxygen manually.

Filling with water:

The inner vessel can be ﬁ lled manually.

The safety functions are deactivated for ﬁ lling.

Venting:

The decomposition vessel can be vented manually. In addition this menu item allows the gasket on the ﬁ lling head to be changed.

Empty:

The inner vessel can be emptied manually.

Stirrer:

Here the operation of the stirrer can be tested. After the start the stirrer speed is displayed.

Cooling water:

After the start the current cooling water temperature at the entry into the calorimeter is displayed.

Cover up/down:

The cover can be opened and closed manually.

RFID:

After the start the decomposition vessel detection is activated and the RFID code of the decomposition vessel can be read.

Click on „Stop“ to stop the function test.

Hardware details

In addition you can switch to the „Hardware details“ tab. This tab shows you all the information about the digital inputs and outputs, the temperature values on all the measurement channels, various counters and statuses of accessories. You cannot make any changes here. The information displayed can be forwarded to Service Engineers who have access to various settings.

Info

Here you can call up important information for servicing purposes:

- Serial number of the calorimeter

- Software version

- PCB* number

- PCB* works number

- Number of ignitions

Help and servicing system

*PCB = printed circuit board

Displaying/hiding the sample rack

Working with the sample rack

To work with the sample rack you must ﬁ rst check that it is connected to the calorimeter. Open the “Sample rack” screen from the main menu. After this you can use the „Use sample rack“ menu item to activate/ deactivate its use.

A schematic representation of the assignment of the rack is displayed in the upper area of the menu.

> Green = free

> Red = occupied

> Grey = rack not connected/recognised

Working with the sample rack and balance

If a balance is connected to the IKA® C 6000 global standards/isoperibol calorimeter, the

weighted sample can be sent directly from the balance to the IKA® C 6000 global standards/ isoperibol calorimeter.

There are two possibilities: a) Press the “Print” button on the balance:

Pressing the “Print” button automatically opens the preparation dialogue box and the weighted sample value is entered automatically.

If External Energy 2 is not set to user-deﬁ ned, the ﬁ rst weighted sample value is entered into the weighted value ﬁ eld for External Energy 2 and the energy is calculated automatically.

If External Energy 2 is set to user-deﬁ ned, the weighted sample value is entered directly into the test weighted value ﬁ eld and the second weighted sample value is entered into the External Energy 3 ﬁ eld (as long as it is not set to user-deﬁ ned).

The energy values are calculated automatically based on the weighted sample and reference caloriﬁ c value entered.

The sequence of ﬁ gures transferred is as follows:

1. Weight External Energy 2 (if not user-deﬁ ned)

2. Test weighted sample

3. Weight External Energy 3 (if not user-deﬁ ned)

Displaying/hiding the sample rack

CAUTION: Before each weighing and transfer of values from the balance, the “TARE” key needs to be pressed.

If the crucible is placed in the sample rack, the input ﬁ eld is closed automatically and the prepared measurement appears in the measurement window.

If the crucible is now removed from the sample rack, the input ﬁ eld opens once more and combustion aids can be added (if this has not already been done).

If entries have already been made the input ﬁ eld is deactivated.

b) Opening the preparation dialogue box on the calorimeter by pressing the “Preparation” button.

With the preparation dialogue box open, the “Balance” key can be used to assign the weighted sample values to the appropriate input ﬁ elds.

The balance value is always entered into the corresponding ﬁ eld.

In order to close the dialogue box, the crucible must always be placed in an empty compartment in the sample rack.

Now you can prepare further measurements and ﬁ ll up the rack.

The „Sample rack“ tab allows you to check the current assignment for the rack:

If you wish to start a measurement that has been prepared in the sample rack, just take out the respective crucible. The dialogue „Preparation for measurement“ opens with the values previously entered (weighted sample, name,...) and you can check this data and if necessary select a decomposition vessel. After the dialogue has been closed with „OK“, the system continues with the standard calorimetric procedure.

Displaying/hiding the sample rack

You can prepare a maximum of 12 measurements in the sample rack, and process them in any order. The assignment remains saved even when the

IKA® C 6000 global standards/isoperibol calori-

meter is switched off. If a crucible unsuitable for the speciﬁ ed procedure is set or taken out, a message appears and the action must be reversed. Caution: if you change the assignment of the sample rack whilst the IKA® C 6000 global stan- dards/isoperibol calorimeter is switched off you must discard all samples!

Cleaning

Cleaning the system

In serious cases (such as accidental removal of crucibles whilst the calorimeter is switched off), click on the „Reset sample rack“ button. This deactivates the sample rack. Remove all the crucibles still standing in the sample rack. The measurements for them still remain displayed in the list but can no longer be used. After this you can once again click on „Use sample rack“.

When the IKA ribol calorimeter is restarted the last rack assign-

ment is saved and can continue to be used.

C 6000 global standards/isope-

After the result has been recorded, you can take out the decomposition vessel, open it and clean it. If you suspect that the combustion sample, the combustion gases produced or the combustion residue could be harmful to health, wear personal protective equipment (e.g. protective gloves, breathing masks) when handling these materials. Harmful or polluting combustion residue must be disposed of as hazardous waste. Express reference is made to the applicable regulations.

In order to obtain accurate measurements it is essential that the decomposition vessel is clean and dry. Impurities alter the heat capacity of the decomposition vessel and thus cause inaccurate measuring results. It is important to thoroughly clean the inner walls of the vessel, the internal ﬁ ttings (brackets, electrodes etc.) and the combus-

Servicing and cleaning the ﬁ lter

Servicing

Check the ﬁ lter every week or according to experience. Over time the ﬁ lter becomes clogged with sludge thereby causing a reduction in the cooling water ﬂ ow rate.

tion crucible (inside and out!) after each combustion test.

In most cases all that is necessary is to remove condensate from the inner walls of the vessel and the internal ﬁ ttings. It is suﬃ cient to thoroughly wipe the parts with an absorbent, non-ﬁ brous cloth. If the decomposition vessel cannot be cleaned in the above way (e.g. due to baking, pitting, corrosion etc.), please contact Technical Service.

The combustion residue in the crucible, e.g. soot or ashes, should also be wiped away with an absorbent non-ﬁ brous cloth.

Do not use distilled or demineralized water (increased risk of corrosion)! Fill the cooler

Displaying/hiding the sample rack

Cleaning

• Switch the device off.

• Switch the cooling water supply off (switch off

the condenser, clock the water shut-off valve).

• Disconnect the hoses from the device.

• Have an absorbent cloth ready to hand.

• Turn the ﬁ lter casing anticlockwise, some water

will escape. wipe up the water with the cloth.

• Pull out the sieve.

Troubleshooting

• Use a suitable brush to clean the sieve inside and out.

• Place the sieve back in the ﬁ lter.

• Screw the ﬁ lter casing on again ﬁ nger-tight.

• Reconnect the hoses to the device (see also the

section „Commissioning“).

• Switch the cooling water supply on again.

• Switch the device on again.

In the event of a fault you will see an error message in the information ﬁ eld. This appears automatically.

You can click on the „Help“ button to obtain detailed information on the fault.

If the fault is non-critical you can click on the „Acknowledge“ button. After that you can rectify the cause of the fault and repeat the action that led to the fault.

If the fault occurred during a measurement the error message is displayed initially without the „Acknowledge“ button.

After this the calorimeter is opened automatically. Once the calorimeter is open and has been vented and emptied the error message is displayed once again, this time with the „Acknowledge“ button.

Cleaning

In certain exceptional cases the fault may prevent the calorimeter being available for measurements.

In such cases the calorimeter initiates a system test directly the „Acknowledge“ button is clicked. After you have taken the actions described in the Help or in the operating instructions, click on the „Restart“ button to start the system test. On successful completion of the system test the IKA® C 6000 global standards/isoperibol is again available for measurements.

Troubleshooting

Fault rectiﬁ cation

Display Description

No heating pulse in the inner circuit.

The function cannot be performed

Drift criterion not achieved This error message is generated

No increase in temperature within the inner water circuit.

No increase in temperature within the outer water circuit.

The selected function cannot be used because the temperature of the cooling water has not reached the required values.

during a measurement of the „Equalise“ or „Main Test“ status if the drift conditions for the current function of the C 6000 cannot be met.

What should be done? What happens next?

Acknowledge the alarm. Check the cooling water ﬂ ow Check the circulating pump. Click on „Restart“ to repeat the system test. Click on „Next“ to skip the system test.

Acknowledge the alarm. Check the cooling water ﬂ ow Check the condenser and the water inﬂ ow. Click on „Restart“ to repeat the system test. Click on „Next“ to skip the system test.

Acknowledge the alarm. Check the cooling water ﬂ ow Check the condenser and the water inﬂ ow. Check the circulating pump.

Click on „Restart“ to repeat the system test. Click on „Next“ to skip the system test.

Acknowledge the error message to revert to the „Wait“ message. Switch to the „Servicing“ tab and press the „Stirrer“ button to check that the stirrer is working. Perform a calibration of the C

6000. Establish the speciﬁ ed ambient conditions.

Troubleshooting

Display Description

No increase in temperature after ignition.

Measurement was cancelled by the user.

Cover not closed, or no decomposition vessel is hung in the calorimeter cover.

Water circuit unstable The stability criterion for the re-

This error message is generated, if the increase in temperature has not achieved the speciﬁ ed value within the ﬁ rst minute after ignition.

This error message is triggered in the Close, Run, Open conditions if the user the presses the „Cancel“ button.

a. The cover did not reach the lower cover contact. b. The ignition contact did not close.

gulation of the water circuits to the working temperature was not achieved within the speciﬁ ed period of time.

What should be done? What happens next?

Acknowledge the error message to revert to the „Wait“ message. The sample is combusted. The weighted sample of the sample may be insuﬃ cient. The caloriﬁ c value of the sample is too small, use a combustion aid. The oxygen pressure is insuﬃ cient The stirrer is not working.

The sample has not been combusted, despite the provision of an ignition thread: The ignition thread was blown away from the sample The oxygen pressure is insuﬃ cient

Sample and ignition thread were not combusted: Check the ignition system.

Acknowledge the error message to revert to the „Wait“ message.

Acknowledge the error message to revert to the „Wait“ message. a. Switch to the „Servicing“ tab. Press the „Close“ button. b. No decomposition vessel hung in the cover Ignition circuit open circuit.

Acknowledge the error message to revert to the „Wait“ message. Check the water circuit Check the heating We recommend performing a system test to localise more precisely the cause of the problem.

Troubleshooting

Display Description

What should be done? What happens next?

Water not ﬁ lling OK. The system could not completely

ﬁ ll the inner vessel with water completely within the speciﬁ ed period of time.

Acknowledge the error message to revert to the „Wait“ message. Water level in the condenser too low. Water ﬂ ow rate insuﬃ cient.

Defect at the water sensor. The water sensor shows comple-

tely full within a very short time.

Acknowledge the error message to revert to the „Wait“ message. Check whether a drip is handing from the water sensor. Blow out the recess around the water sensor.

Rﬁ d ID of the new decomposition vessel not accepted.

This error message is triggered by the dialogue „New decomposition vessel“ if you attempt to register a new decomposition vessel at the C6000 using an Rﬁ d

Acknowledge the error message to continue the dialogue. Use a different Rﬁ d ID for this decomposition vessel. Contact IKA

ID that has already been used.

xxxxxxxxxxx : This Rﬁ d ID cannot be assigned

The Rﬁ d value detected does not match any of the decomposition vessel registered at the C 6000.

Acknowledge the error message to revert to the „Prepared“ message. Check whether the vessels have been mixed up. Check whether a misleading Rﬁ d is stated anywhere. Register this decomposition vessel at the C 6000.

Converter alarm High-precision temperature

measurement is one of the core functionalities of the calorimeter. Any error message regarding the temperature recording brings the current measurement to an end and demands a system test. Further work using the calorimeter can be performed only once the system test has been completed successfully.

Acknowledge the error message in order to switch to the „System Check“ status. Press the „Restart“ button“. The temperature converter is reset and the system test starts. On successful completion the status switches to „Wait“ If the system test was unsuccessful, switch the C 6000 off and on again. If the system test is unsuccessful again, please contact IKA tomer Service.

Customer Service.

Cus-

Troubleshooting

Display Description

Controller alarm The reliable regulation of the

outer vessel is a major precondition for good quality measured values. Any error message from the controller brings the current measurement to an end and demands a system test. Further work using the calorimeter can be performed only once the system test has been completed successfully.

What should be done? What happens next?

Acknowledge the error message in order to switch to the „System Check“ status. Press the „Restart“ button“. The temperature converter and the controller are reset and the system test starts. On successful completion the status switches to „Wait“ If the system test was unsuccessful, switch the C 6000 off and on again. If the system test is unsuccessful again, please contact IKA® Customer Service.

Troubleshooting

Checks

Various major parts of the calorimeter are monitored. Information about when the servicing intervals deﬁ ned by the manufacturer for these parts fall due is shown in the information ﬁ eld, with the invitation to perform servicing actions. You must then conﬁ rm performance of the servicing actions.

Click on „Acknowledge“ to acknowledge performance of the servicing actions.. The acknowledgement is saved and can be checked by the Service Engineers.

If you click on the „Help“ button you will be given instructions on exactly what to do.

This monitoring is the precondition for a high degree of safety and we ask you to follow the stated instructions precisely.

At the latest after 500 measurements, check the O-ring, ﬁ lter etc..

Troubleshooting

Accessories and consumables

Accessories

C 6010 Decomposition vessel C 6012 Decomposition vessel C 5010.5 Crucible holder, large C 5010.8 Crucible holder, small C 21 Pelleting press C 5020 Sample rack C 29 Pressure reducer, oxygen C 6030 Gas washing station C 27 Calorimeter instrument set C 5041.10 Connecting cable 9-pin / 3m C 6040 Calwin C 1.50 Dot-matrix printer C 60.1020 Organiser

Consumables

C 723 Benzoic acid blister pack, 50 pieces C 723 Benzoic acid big pack C 43 Benzoic acid NIST 39i C 710.4 Cotton wool threads cut to length C 710.8 Cotton wool threads cut to length, thick C 16 Paraﬁ lm 1000x50 C 17 Paraﬃ n liquid 30 ml C 15 Paraﬃ n strips 600 pieces/package C 9 Gelatine capsules (100 pieces) C 10 Acetobutyrate capsules (100 pieces) C 12 A Combustion bag, 70 x 40 mm (100 pieces) C 12 Combustion bag, 40 x 35 mm (100 pieces) AOD 1.11 Control standard for sulphur and chlorine AOD 1.12 Control standard for ﬂ uorine and bromine C 1.103 Ignition wire C 1.123 Ignition wire, platinum C 14 Combustible crucible (100 pieces) C 5 VA VA combustion crucible set (25 pieces) C 710.2 VA VA Combustion crucible large (25 pieces) C 4 Quartz dish C 6 Quartz dish large C 6000.10 Spare parts kit 1000 C 6000.12 Spare parts kit 1000

For further accessories see www.ika.com.

Accessories and consumables

Technical data

IKA® C 6000 global standards

Measuring range max. ..................................................................................... J ................................................ 40000

Measuring mode adiabatic 22 °C .............................................................................................................................yes

Measuring mode dynamic 22 °C ...............................................................................................................................yes

Measuring mode isoperibolic 22 °C ..........................................................................................................................yes

Measuring mode adiabatic 25 °C .............................................................................................................................yes

Measuring mode dynamic 25 °C ..............................................................................................................................yes

Measuring mode isoperibolic 25 °C ..........................................................................................................................yes

Measuring mode adiabatic 30 °C .............................................................................................................................yes

Measuring mode dynamic 30 °C ..............................................................................................................................yes

Measuring mode isoperibolic 30 °C ..........................................................................................................................yes

Measuring/hour adiabatic ........................................................................................................................................... 5

Measuring/hour dynamic ............................................................................................................................................ 7

Measuring/hour isoperibolic ........................................................................................................................................ 4

Reproducibility adiabatic (1g benzoic acid NBS39i) ....................................... %RSD ............................................... 0.05

Reproducibility dynamic (1g benzoic acid NBS39i) ........................................ %RSD ............................................... 0.15

Reproducibility isoperibolic (1g benzoic acid NBS39i) .................................... %RSD ............................................... 0.05

Touchscreen .............................................................................................................................................................yes

Working temperature min. .............................................................................. °C .................................................... 22

Working temperature max. .............................................................................°C .................................................... 30

Temperature measurement resolution ..............................................................K .............................................. 0.0001

Cooling medium temperature min. .................................................................. °C .................................................... 12

Cooling medium temperature max. ................................................................. °C .................................................... 27

Cooling medium permissible operating pressure ............................................. bar ................................................... 1.5

Cooling medium .......................................................................................................................water quality tap water

Type of cooling ....................................................................................................................................continuous ﬂ ow

Flow rate min. .................................................................................................l/h .................................................... 60

Flow rate max. ................................................................................................ l/h .................................................... 70

Recommended ﬂ ow rate at 18 °C ...................................................................l/h .................................................... 60

Oxygen operating pressure max ..................................................................... bar .................................................... 40

Interface to scales ...................................................................................................................................... RS232 serial

Interface to printer ................................................................................................................. USB, RS232 and network

Interface to PC ....................................................................................................................................................RS232

Interface to sample rack .................................................................................... .....................................................yes

Interface to ext. keyboard ........................................................................................................................................yes

Oxygen ﬁ lling .................................................................................................... .....................................................yes

Degassing ................................................................................................................................................................yes

Decomposition vessel detection ...............................................................................................................................yes

Decomposition vessel C 6010 ..................................................................................................................................yes

Decomposition vessel C 6012 ..................................................................................................................................yes

Evaluation to DIN 51900 ..........................................................................................................................................yes

Evaluation to DIN EN ISO 1716 ................................................................................................................................yes

Evaluation to DIN EN ISO 9831 ................................................................................................................................yes

Evaluation to DIN EN 15170 .....................................................................................................................................yes

Evaluation to DIN CEN TS 14918 ..............................................................................................................................yes

Evaluation to ASTM D240 ........................................................................................................................................yes

Evaluation to ASTM D4809 ............................................................................... .....................................................yes

Technical data

Evaluation to ASTM D5865 ......................................................................................................................................yes

Evaluation to ASTM E711 .................................................................................. .....................................................yes

Evaluation to ISO 1928 ............................................................................................................................................yes

Evaluation to BG T213 .............................................................................................................................................yes

Width ............................................................................................................mm ................................................ 500

Depth ............................................................................................................mm ................................................. 450

Height ...........................................................................................................mm ................................................. 425

Weight ...........................................................................................................kg .................................................... 29

Permissible ambient temperature min. .............................................................°C .................................................... 20

Permissible ambient temperature max. ............................................................°C .................................................... 25

Perm. humidity rel. .......................................................................................... % ..................................................... 80

Protection to DIN EN 60529 ..................................................................................................................................IP 20

RS 232 interface ......................................................................................................................................................yes

USB interface ...........................................................................................................................................................yes

Rated voltage ...................................................................................................V .......................................... 220 - 240

Rated voltage ...................................................................................................V .......................................... 100 - 120

Frequence .......................................................................................................Hz ............................................... 50/60

Power consumption ........................................................................................ W ................................................. 2000

Fuses (220-240 V) .......................................................................................................................................... 2x 6.25 A

Fuses (100-120 V) .......................................................................................................................................... 2x 12.5 A

Perm. on time ...............................................................................................................................continuous operation

Protection class ...........................................................................................................................................................III

Overvoltage category .................................................................................................................................................. 2

Contamination level .....................................................................................................................................................II

Operation at a terrestrial altitude ........................................................................................... max. 2000 above sea level

Subject to technical changes!

Technical data

IKA® C 6000 isoperibol

Measuring range max. ..................................................................................... J ................................................ 40000

Measuring mode dynamic 22 °C ...............................................................................................................................yes

Measuring mode isoperibolic 22 °C ..........................................................................................................................yes

Measuring mode dynamic 25 °C ..............................................................................................................................yes

Measuring mode isoperibolic 25 °C ..........................................................................................................................yes

Measuring mode dynamic 30 °C ..............................................................................................................................yes

Measuring mode isoperibolic 30 °C ..........................................................................................................................yes

Measuring time* dynamic approx. .................................................................. min ..................................................... 8

Measuring time* isoperibolic approx. .............................................................min ................................................... 16

Reproducibility dynamic (1g benzoic acid NBS39i) ........................................ %RSD ................................................. 0.1