Heidolph MR Hei-End User manual

Leading Safety Standards Superior Ease of Use Reduced Cost of Ownership
Safe
Heating and Mixing
Magnetic Stirrer MR Hei-End
Operating manual must be read before initial start-up.
Please follow the safety instructions provided.
Please keep for future reference.
Magnetrührer MR Hei-End
Betriebsanleitung vor Erstinbetriebnahme unbedingt lesen.
Sicherheitshinweise beachten.
Für künftige Verwendung aufbewahren.
Operating Manual Page 2
Original-Betriebsanleitung Seite 30

Contents
Inhaltsverzeichnis
About this Document 4
Version .............................................................................................................4
About this manual ..............................................................................................4
Terms and signs used..........................................................................................5
Safety Instructions 6
General safety instructions...................................................................................6
EU Declaration of Conformity.........................................................................6
Intended use...............................................................................................6
Installation / Electrical safety .......................................................................7
Personnel qualication..................................................................................7
Operating company’s obligations...........................................................................7
Installation site ...........................................................................................7
Changes to the unit .....................................................................................8
Safety for the personnel ...............................................................................8
Safety during use ...............................................................................................8
Disposal ............................................................................................................8
Device Description 9
Device overview .................................................................................................9
MR Hei-End overall view ...............................................................................9
MR Hei-End control panel..............................................................................9
Start-Up 10
Setting up device .............................................................................................10
Connect/disconnect power cord ..........................................................................10
Switch unit on and off .......................................................................................11
Operation 12
Place vessels....................................................................................................12
Start mixing and heating ...................................................................................12
Set speed and start rotation........................................................................12
Set temperature ........................................................................................13
Start heating.............................................................................................15
Operating Manual

Contents
Cleaning and Maintenance 16
Cleaning..........................................................................................................16
Maintenance ....................................................................................................16
Troubleshooting 17
Possible errors and how to resolve ......................................................................17
Assembly 19
Electrical connections........................................................................................19
Mounting periphery devices ...............................................................................20
Connect temperature sensor Pt 1000............................................................20
Connect PC ...............................................................................................21
Congure Interfaces...................................................................................22
Use interface analog 0-10V .........................................................................23
Disassembly and Storage 24
Dismantling, transportation and storage ..............................................................24
Dismantling ..............................................................................................24
Transportation and storage .........................................................................24
Accessories and Spare Parts 25
Scope of delivery..............................................................................................25
Accessories......................................................................................................25
Attachments 26
Technical data ..................................................................................................26
Service 27
Contact / Technical Service ................................................................................27
Warranty.........................................................................................................28
Conrmation of condition of unit.........................................................................29

About this Document
4
About this Document
Version
Version
This manual describes the function, operation and maintenance of the magnetic stirrer
MR Hei-End
Version Alteration date
1.0 10.2016
About this manual
This operating manual is a component of the device described here.
➜Please read this manual carefully and obey all safety and warning
notices.
➜Ensure that every operator reads this manual.
➜Ensure that this manual is accessible for every operator.
➜Pass on the operating manual to the subsequent owner.
For the current version of this operating manual in pdf format, please
go to:
http://www.heidolph-instruments.com/Support/Operation Manuals/
Magnetic Stirrers/All MR Hei- models/MR Hei-End
In addition please observe the regional regulations.

5
About this Document
Terms and signs used
In this manual you will  nd standardized terms and signs to warn you of possible dangers
or give important hints. Please take special notice to these signs to avoid personal injury
or damage to the unit.
The following terms and type of signs (basic drawing elements) are used:
Symbol Additional term / Description
Warning signs The yellow triangle indicates hazardous situations. It is used in
combination with the following terms:
DANGER:
Indicates a hazardous situation which, if not avoided, will result in
irreversible injury or death.
WARNING:
Indicates a hazardous situation which, if not avoided, could result in
serious injury or material damage.
CAUTION:
Indicates a hazardous situation which, if not avoided, may result in a
minor injury or material damage.
Prohibitory
signs
Not to do:
The red circle indicates a situation that should be avoided under all
circumstances to avoid injury or damage.
Mandatory
signs
To do:
The blue circle indicates important information. Please obey to avoid
property damage.
Other signs used
Symbol Description
➜Handling instruction, action required
✓Result of action
▪
▪
▪
List of information
a.
b.
c.
List of variants

Safety Instructions
6
Safety Instructions
General safety instructions
EU Declaration of Conformity
This device complies with the following EC-Directives*:
▪2006/42/EC Machinery Directive
▪2014/30/EU Electromagnetic Compatibility Directive
*Also see attachment „EU Declaration of Conformity”.
The device has been constructed according to state-of-the-art technology and recog-
nized safety regulations. However, risks may still arise during installation, operation and
maintenance.
➜Please ensure the operating manual is available at all times.
The device may only be used under the following circumstances:
➜Only operate the device, if it is in full working order.
➜Ensure all operators of the device possess the necessary safety and risk awareness.
➜Operate the device according to the instructions stipulated in this manual only.
➜If there is something you do not understand, or certain information is missing, ask
your manager or contact the manufacturer.
➜Do not do anything on the device without authorization.
➜Only use the device according to its intended use.
Intended use
The device is intended for use by trained and authorized personnel only.
The device is suitable for the
following use:
▪heating
▪mixing
The operation for the device
is suitable in one of the
following locations:
in any research application
Improper use
Any use which deviates from the device‘s intended use is considered to be improper. The
manufacturer does not accept liability for any damages resulting from non-permitted
uses. The risk is carried by the operator alone.

7
Safety Instructions
Installation / Electrical safety
▪The device may only be connected when the mains voltage corresponds to the infor-
mation on the type plate of the unit.
▪The mains connection must be accessible at all times.
▪Repairs may only be performed by a qualied electrician.
▪Never operate the unit with a damaged power cord.
▪Always turn the unit OFF and disconnect mains power before performing any
maintenance or service.
Personnel qualication
▪The device may only be operated by qualied persons.
▪The device may only be operated by individuals who have been instructed in its
proper use by qualied persons.
▪The device may only be operated and maintained by persons who are of legal age.
▪Other personnel may only work with the unit under continuous supervision of an
experienced qualied operator.
▪This manual must be read and understood by all persons working with the device.
▪The personnel must have received special safety instructions in order to guarantee
responsible and safe work procedures.
Operating company’s obligations
Installation site
▪The device must be positioned in a suitable location.
▪The device must be installed sufciently stable on a temperature resistant surface.
▪Do not operate the device in proximity of highly inammable and explosive substances.
▪Installation and operation of the device is only permitted in facilities which are tted
with the appropriate laboratory equipment (e.g. with air extraction units).
▪We recommend operation in fume hood enclosures depending on the agents used.
▪The device may only be operated in enclosed spaces and under the following environ-
mental conditions:
Ambient temperature 5 - 31 °C at 80 % relative humidity
32 - 40 °C decrease linearly
till max. 50 % relative humidity
Installation altitude 0 - 2,000 m (6,500 feet) height above sea level
Degree of pollution 2
Overvoltage category II

Safety Instructions
8
Changes to the unit
▪No unauthorized changes may be made to the unit.
▪No parts may be used which have not been approved by the manufacturer.
▪Unauthorized changes result in the EC Declaration of Conformity loosing its validity,
and the unit may no longer be operated.
▪The manufacturer is not liable for any damage, danger or injuries that result from
unauthorized changes or from operating the unit other than described in this manual.
Safety for the personnel
➜Ensure that only qualied personnel operates the device.
➜Observe the following regulations:
- Laboratory guidelines
- Accident prevention regulation
- Ordinance on Hazardous Substances
- Other generally accepted rules of safety engineering and occupational health
- Local regulations
Safety during use
➜Beware of the effect of magnetic elds on cardiac pacemakers or magetic sensitive
data media. Observe the according warning in chapter “Start-up”, “Setting up device”.
➜Wear the appropriate protective clothing when working on the device (clothing,
protective glasses and, if necessary, safety gloves).
➜Do not use the device in potentially explosive areas. The device is not protected
against explosion. There is no explosion or ATEX protection available.
➜Do not operate or assemble devices in the vicinity which are emission or radiation
sources (electromagnetic waves) for the frequency range (3*1011 Hz to 3*1015 Hz).
➜Avoid putting pressure on the display when you do not operate the device.
➜Eliminate errors immediately.
➜Do not use abrasive material to clean the surfaces. Only wipe with damp cloths.
➜Always switch the device off after use.
Disposal
➜Check the device components for hazardous substances and solvents.
➜Clean all components before disposal.
➜Dispose of the device according to the valid national legal regulations.
➜Dispose of the packaging material in accordance with the valid national legal
regulations.

Device Description
9
Device Description
Device overview
MR Hei-End overall view
Hotplate,
(magnetic eld
underneath)
ON/OFF switch
(right side of device)
Connection PC
(backside of device)
Control panel
MR Hei-End control panel
LED
ON/OFF
Analog Knob
to set speed
Raise temperature
Button „Select”
to set temperature
and Delta ∆t
Display
Lower temperature Switch heating on/off

Start-Up
10
Start-Up
Setting up device
Warning:
Magnetic eld!
The magnetic eld beneath the hotplate could cause irritations on
your cardiac pacemaker, if you get too close.
Personnel with a cardiac pacemaker, implanted debrillator or dosing
pump should keep a minimum distance of 10 cm (4 inches) to the
device.
Warning:
Risk of slipping device!
As a result of vibrations generated during operation the device might
slide off the table top.
The surface must be smooth, clean and temperature resistant and
should be properly leveled.
➜Locate the device on a stable, horizontal and temperature resistant surface.
➜Clean surface and feet with a damp cloth and ethanol regularly.
Connect/disconnect power cord
Connect power cord
The power cord comes with a three-wire
plug with recess on the bottom side.
Power cordUnit plug
The socket is located on the back side of
the unit.
➜Connect unit plug to the unit socket
with the recess facing down.
➜Push plug up against socket until
securely attached.
➜Connect power plug to power socket.
Unit socket
Disconnect power cord
➜Disconnect power plug from power socket rst.
➜Then disconnect plug from socket on unit.

Start-Up
11
Switch unit on and off
The ON/OFF switch is situated at the right side of the device beneath the control panel.
Switch unit on
➜Press the ON/OFF switch at the right
side.
✓The unit is switched on.
Switch unit off
➜Press the ON/OFF switch at the left
side.
✓The unit powers off.
ON/OFF switch

Operation
12
Operation
Place vessels
Caution:
Risk of breakage and spillage
If the vessels are not placed securely they may slip off and spill the
sample.
Prior to start heating and mixing ensure that all vessels are securely
placed.
Heating bath accessories for round  asks and beakers as well as attachments for water,
gas and evaporating distributors are available.
➜To place a number of vessels securely on plate use optional adaptors (see general
catalogue).
➜Single vessels with  at bottoms like beakers may be placed directly on hotplate.
A single  ask should be arranged in the middle of the hotplate.
Several  asks should be distributed equally on the plate.
Start mixing and heating
When using device inside conditioned cabinets, make reference to
ambient conditions as stipulated in chapter “Technical data”.
Set speed and start rotation
Warning:
Risk of poisoning!
Open vessels and too high speed may result in samples splashing.
Use vessels with narrow neck especially if sample is dangerous or
toxic.
Adjust speed step by step until you have reached the required rpm
settings.
Wear safety glasses and especially with dangerous and toxic
samples appropriate protective clothing.

Operation
13
Speed can be set between 30 - 1,400 rpm.
➜Place vessel with sample and stirring
bar on hotplate.
➜Turn item on with ON/OFF switch.
➜Set speed with analog knob.
✓Actual speed appears in the 3-digit
digital display.
✓Rotation starts immediately.
Temperature display: actual 36 °C
Speed display: actual 400 rpm
Set temperature
Warning:
Risk of burning!
The hotplate can reach temperatures up to 300 °C.
If you work with temperatures above 50 °C wear safety gloves and
appropriate protective clothing.
Warning:
Risk of ignition!
In ammable samples may ignite with high temperatures.
If you work with in ammable samples set temperature at least 25
°C lower than ignition point of sample.
There are two options to control heating:
▪Without temperature sensor: temperature will be measured and controlled via
hotplate.
▪With temperature sensor: temperature will be measured and controlled via sensor
directly in medium (see chapter “Assembly, Connect temperature sensor Pt 1000”.
You can set following temperature range:
▪Hotplate / temperature sensor: between 20 °C and 300 °C (lower degrees depending
on ambient temperature).
▪Safety delta: between 10 °C and 25 °C
If temperature raises above set temperature and exceeds safety delta, heating is
automatically cut off.
Working without temperature sensor:
Due to differences in heat conductivity of various materials of
vessels and medium the temperature of hotplate should be set 1½
to 4 times higher, than the desired medium temperature.

Operation
14
✓Actual temperature is shown on top of
display.
➜Press button “Select” once.
✓An arrow symbol appears at beginning
of  rst line.
✓Display changes from “hotplate temp”
to “set hotplate”.
➜Set temperature in between 3 seconds
using arrow buttons and .
Set temperature: 100 °C
➜Press button “Select” again in between
3 seconds.
✓Arrow symbol appears at beginning of
second line.
➜Set delta for safety temperature
in between 3 seconds using arrow
buttons and .
Delta safety temperature: Δt 25 °C
If no entries are made in between 3 seconds the last entry will be
saved and the display switches to show actual temperatures.
Working with temperature sensor Pt 1000:
The display shows “set probe” instead of “set hotplate”. Setting
temperature is exactly the same procedure.

Operation
15
Start heating
➜Press the heating button.
✓The ring around heating symbol will
illuminate green.
✓The unit starts heating
➜Set temperature in between 3 seconds
using arrow buttons and .
Heating button
✓A heating symbol will  ash in
display till set temperature is reached
➜Press button “Select” to adjust heating
temperature.
➜Press heating button again to switch
off heating.
Heating symbol
The device is equipped with a residual
heat warning.
✓If device is switched off while
temperature is still above 50 °C, the
display will remain illuminated.
✓A message will be displayed and actual
temperature is shown.
✓Display will switch off automatically
when temperature lowers to 50° C and
beneath.
A power cut will stop heating and mixing and put device on stand
by. Set temperature and speed will be saved.

16
Cleaning and Maintenance
Cleaning and Maintenance
Cleaning
All surfaces of the unit allow for cleaning with a damp cloth and if required a mild soap
lotion.
Attention:
Damage to the surfaces
All surfaces can be damaged by improper cleaning.
In any case do not use:
▪Chlorine bleach or any cleaning agent including chlorine
▪Ammonia
▪Abrasive cleaning agents such as cleaning rags, scrubbing agents
or any other agents which include metal components
As a result of vibrations generated during operation the device might
slide off the table top.
To ensure a stable position clean surface and feet with a damp cloth
and ethanol regularly.
Maintenance
The unit is maintenance-free. Any necessary repair must be performed by an authorized
Heidolph distributor.
Please contact Heidolph Instruments or your local Heidolph Instruments distributor.

Troubleshootimg
17
Troubleshooting
Possible errors and how to resolve
Error message Possible reason Troubleshooting
hot plate sensor break Hotplate sensor broken Contact your local Heidolph
Instruments distributor
hot plate sensor shorted Short circuit hot plate sensor Contact your local Heidolph
Instruments distributor
hot plate safety sensor
break
Safety sensor broken Contact your local Heidolph
Instruments distributor
hot plate safety sensor
shorted
Short circuit safety sensor Contact your local Heidolph
Instruments distributor
hot plate sensor
difference >15°C
Hotplate sensor difference
to high
Contact your local Heidolph
Instruments distributor
hot plate sensor set
safety ∆T
Set safety delta exceeded,
indication of exothermal
reaction
Increase safety temperature
hot plate sensor
“set safety ∆T”
external sensor break External sensor broken Replace external sensor
external sensor shorted Short circuit external sensor Replace external sensor
external safety sensor
break
External safety sensor
Sensor broken
Replace external sensor
external safety sensor
shorted
Short circuit external safety
sensor
Replace external sensor
external sensor
difference >15°C
External sensor difference
to high
Replace external sensor
external sensor set
safety ∆T
Set safety delta exceeded,
indication of exothermal
reaction
Increase safety temperature
external sensor
“set safety ∆T”
triac IDxx Triac error Contact your local Heidolph
Instruments distributor
motor Motor defective, no rotation Contact your local Heidolph
Instruments distributor
communication fault
IDxx
Communication fault
between Triac and/or
monitoring
Contact your local Heidolph
Instruments distributor
Kernel error IDxx Kernel error (operating
system)
Contact your local Heidolph
Instruments distributor
external probe outside
media
External sensor not in
contact with medium
Insert sensor at least 20 mm
into medium

Troubleshootimg
18
Malfunctions Possible reason Troubleshooting
Power LED does not
enlighten
No power ▪Check size and shape of
plug and compatibility to
your electrical socket
▪Check circuit breakers
Light diode defective Contact your local Heidolph
Instruments distributor
No rotation function No magnetic bars in vessel Insert magnetic bars
rpm set to “0” Set speed
No heating up function Set temperature exceeded Let device cool down
Probe temperature lower
than desired
Temperature controlled via
hotplate
Raise temperature of
hotplate
If you experience a malfunction which can not be resolved, please contact your authorized
Heidolph Instruments distributor immediately.

Assembly
19
Assembly
Electrical connections
▪Repairs of any kind are allowed by qualied professional electricians only.
Any improper repair can result in a dangerous situation. Contact your local Heidolph
Instruments distributor for any repair you may have.
Warning:
Electric shock!
This unit must only be connected to a grounded electrical socket.
The unit and voltage must match. The type label on the back side of
the unit provides all voltage specics.
When shipped, the unit is grounded. In case the original plug is
changed, the new plug must have a protective conductor!
Rating plate
Color code for electrical connections:
Europe North America
GREEN/
YELLOW
PE: Protective
conductor (Earth) GREEN PE: Protective conductor (Earth)
BLUE N: Neutral conductor WHITE N: Neutral conductor
BROWN P: Phase BLACK P: Phase
The unit is connected with the power cord supplied to the electrical socket. It plugs into
the housing on the rear side of the unit.
For countries utilizing a plug other than the standard one supplied:
▪The plug supplied may only be changed by a professional electrician.
▪If utilizing an adaptor ensure that it is approved by the local regulations.

Assembly
20
Mounting periphery devices
Connect temperature sensor Pt 1000
Caution:
Risk of cable damage
The cable of temperature sensor
might get damaged by to high
temperatures.
Ensure the cable does not get in
contract with very hot materials.
Please use clamping system with
cable guide tube (optional acces-
sori, see chapter “Accessories and
Spare Parts”).
➜Switch off device.
➜Turn locking ring on plug anti clockwise
to the left.
➜Insert plug into 4-pole socket on
backside of device.
➜Push locking ring towards device and
turn clockwise, till it audible engages.
Plug temperature sensor
4-pole socket
For reliable measurement the temperature sensor has to be inserted
at least 20 mm.