Haake F6, N6 Instruction Manual

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Instruction Manual

F6

and

N6

Cirulator

including all Baths

(

V

1.5617

)

Part

No.

002-3575

F

1-1

-044-2 / 09.2000

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Table

of

Contents

.............................

.

1

Key to Symbols

4

..................

1.1 Symbols used in this manual 4

...............

1.2 Symbols used on the unit (front) 4

1.2.1 Value alteration

........................

5

........................

1.2.2 Menu selection 6

...............

1.3 Symbols used on the unit (rear) 6

1.4 Symbols used on the display

..................

7

.................................

1.5 Menu Tree 8

2

.

Quality Assurance

..........................

9

3

.

Your Contacts at Thermo Haake

..............

9

................................

4

.

Safety Notes

10

5

.

Unit Description

............................

13

.............................

5.1 Safety features 13

5.2 Safety class 2 according to DIN 12879

.........

14

................................

5.3 Applications 14

5.4 Temperature ranges

.........................

14

......................

6

.

Unpacking / Setting Up

16

.....................

6.1 Transportation damage? 16

6.2 Contents

...................................

16

6.3

Ambient conditions according to EN 61 01

0

.....

16

..............

6.4 Resting time after transportation 16

6.5 Ventilation

..................................

16

............

6.6 Information concerning the CE sign 17

6.7 Mounting onto bath bridges

...................

18

7

.

Functional Elements

........................

19

...............................

7.1 FrontFandN

19

7.2 Rear F and

N

...............................

20

..............

7.3

Bath vessel

65

(example model) 21

7.4 Refrigerated bath C25 (example model)

........

22

8

.

Hoses

......................................

23

8.1 Connecting Hoses

...........................

23

8.2

Selecting Hoses

.............................

23

8.2.1 Plastic and rubber hoses

................

24

8.2.2

Metal hoses

...........................

25

8.3 Tap water cooling

...........................

26

8.3.1 Connection to cooling

(tap)

water

........

26

8.4 External Cooling Devices

.....................

26

8.5 Pressure pump

.............................

27

8.5.1

Temperature controlling object (internal bath) 27

8.5.2

Connection of external closed systems

....

27

8.5.3 Connection of external open systems

.....

27

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Table of Contents

9

.

Filling with Bath Liquid

9.1 Recommended bath liquids

9.2 Filling with heat transfer liquid

......................

...................

.................

28

28
31

10 . Draining

.

Connecting Up

11

11.1 Connecting to the mains

11.2 Checking the liquid circuit

11.3

11.4 Fuses on the unit

12 . Configuration

12.1 Interface RS 232C

12.2 Analog interface (option!)

12.3 Language

12.4 Temperature display

12.5 Autostart

12.6 Reset

12.7 Display contrast adjustment

12.8 Acoustic Signal

12.9 Version numbers

.

looperation status

1 2

.

13 Operating

13.1 Switching on

13.2 Working with internal or external control sensors

13.3 Working with or without cooling

13.4 Setting the desired set temperature

13.5 Setting the RTA system correction value

13.6 Setting temperature limit values

13.7 Controlling heating and cooling

....................................

..............................

.....................

....................

Changing the mains plug (e.g. for Great Britain)

............................

...............................

...........................

.....................

..................................

.........................

...................................

......................................

..................

.............................

............................

............................

..................................

................................

...............

...............

................

32

33

33
33

.

33
34

35

35
35

35
36
36
36

37
37
37
37

............

.......

14 . Excess Temperature Protection

14.1 Excess temperature protection dial

14.1.1 Setting the excess temperature

14.1.2 Testing the cut-off point

.

15

Fault Displays

15.1 Excess temperature

15.2 Low liquid level cut-off

15.3 Pump or motor overloading

15.4 Sensor breakage or short circuit

15.5 Undefined fault

15.6 External fault RS232C 45

15.7 Error in connection with cooling units
1 5.8 Fault eliminated? 47

15.9 Fault displays of the Fuzzy control

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..............................

.........................

.......................

..............................

.......................

............................

..............

............

.........

................

...................

...............

..........

.............

42

42
43
43

44

44
44
44
45

45
46

47

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Key to Symbols

1.

Key

to

Symbols

1.1

Symbols used in this manual

!

Warns the user of possible damage to the unit, draws

attention to the risk of injury or contains safety notes
and warnings.

Denotes an important remark.

Indicates the next operating step to be carried out and

.

. .

...

what happens as a result thereof.

1.2

Symbols used on the unit (front)

Caution: Read the instruction manual before oper-

ating.

t)

lnstrument in "off'' position.

@

Instrument in "on" position

Adjustment for setting the cut-off point for excess tem-

@

perature protection.

w

Reset after fault of the instrument.

Selection of the basic menu or return from any sub
menu after settings have been made.

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Key

to

Symbols

1.2.1

Value

alteration

Selection of the digit which needs to be altered in any

temperature or time displays. Can

be

made left or right.

The selected digit is underlined,

e.g. change of set value:

SET-NEW: + lZ3.45"C

The one-degree digit has to

be

changed.

0x3

Change

of

the selected digit between 0 and

9,

e.g. change of set value:

SETPOINT: c123.45"C

The temperature has been altered by

3°C.

SET-NEW: +126.45"C

ENTER

key to confirm a selection,

e.g. change of set value:

SETPOINT

+126.450~

The set value alteration of plus 3°C

SET-NEW:

+

1

26.4s0C

has been confirmed and is in action.

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Key to Symbols

1.2.2

Menu selection

Any single menu point in a menu display (monitor con­tents) can be selected by using the arrow keys.

BASIC

MENU

The selected menu point will be marked.

ENTER key to confirm a selection and to change to the
next menu.

123.45OC

START

p-1

CONFIG CONTROL

(

T-SELECT

1

The next menu amears

e.g.

T-SELECT

-1

LIMIT

I

RTA

1.3

Symbols

used on the unit

(rear)

W

Connection for tap water cooling.

Pump connection:

back flow (suction) from the
external object.

@

Pump connection: pressure to the external object.

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Key

to

Symbols

1.4

Symbols used

on

the

display

START

flashes and reminds to perform the starting

24.40°C

procedure. Select with

the basic menu, then select

rmf;,

and press

@

ENTER.

ALARM

flashes and heater element, pump and

if

avail-

ALARM

abie, cooling circuit have been switched off. Any cause

of the alarm is displayed in a second line.

FUZZY

DENT

43.20%

Lights up if heater is active and flashes during the con-

trol phase.

Lights up

if

cooling is active with full cooling capacity.

Lights up if cooiing is active with partial cooling

capacity.
Star

1

and 2 are blinking alternately when the cooling

is on.

The crossed out

star is on when the cooling unit is off.

IDENT

flashes: After switching on the unit or entering

a new set temperarture, the ~uzzystar~ controller

determines suitable control parameters. It can happen

that heating or cooling is interrupted during this pro-

cess and the displayed temperature changes. This is
because

the

controE unit requires some

time

to

deter-

mine the parameters.

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I

value

LIMIT

value

value

START

RS485

'-1

T-DISPLAY AUTOSTART

I

[

STATUS

Main menu

I

I

I

CONTROL

I

I

FRANCAIS

values

DEUTSCH

I

values

INT-EXT

I

I

I

I

I

PARTIAL MEDIUM

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Quality

Assurance / Your

Contacts

at

Thermo

Haake

2.

Quality

Assurance

Dear customer,

Thermo Haake implements a Quality Management System

certified according to

EN

29001.

This guarantees the presence of organizational structures
which are necessary to ensure that our products are devel-

oped, manufactured and managed according to our custom­ers expectations. Internal and external audits are carried out

on a regular basis to ensure that our

QMS

system is fully

functional.

We also check our products during the manufacturing pro­cess to certify that they are produced according to the speci-

fications as well as to monitor correct functioning and to con-

firm that they are safe. This is why we initiate this monitoring

process of important characteristics already during
manufacturing and record the results for future reference.

The "Final Test" label on the product is

a

sign that this unit
has fulfilled all requirements at the time of final manufactur­ing.

Please inform us if, despite our precautionary measures,
you should find any product defects. You can thus help

US

to

avoid such faults

in

future.

3.

Your

Contacts

at

Thermo

Haake

Please get in contact

with

us or the authorized agent who

supplied you with the unit if you have any further questions.

Thermo Haake

DieselstraOe 4

D-76227 Karlsruhe

Thermo

Haake

(USA)

53

W.

Century

Road

Paramus,

NJ

07652

Tel. +49

(0)

72 1 4094-444

Tel.

201 265 7865

Fax

[phone]

8

Fax

201 265 1977

[e-mail] [e-mail]

The following specifications should be given when product

enquiries

are

made:

DESELSTR

4

[I]

-

Unit

name

printed on the front of the unit,

-

TYP

as specified on the name plate.

'.

J

-

Version

of the operating software (see chap.

12.9).

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Safety Notes

4.

Safety

Notes

These notes are intended to draw your attention to risks

which only

YOU

can recognize and avoid or overcome. They

are intended to enhance your own safety consciousness.
We have set the highest quality standards for ourselves and

this unit during development and production. Every unit

meets relevant safety regulations.

The correct unit usage

and proper handling is however solely your responsibility.

The intended workplace should correspond to a laboratory
or pilot plant environment. The user should have an educa­tion level which is at least equivalent to a trained laboratory
worker or specialized chemist. The following list should be

seen as an example.

The device may not be operated if there are any doubts

regarding a safe operation due to the outer appearance
(e.g. damages).

A

safe operation of the instrument cannot be guaran-

teed if the user does not comply with this instruction

manual.
Ensure that this manual is always at hand for every unit

operator.
Only use this unit solely for the intended application.

Repairs, alterations or modifications must only be car­ried out by specialist personnel. Considerable damage

can be caused by improper repairs. The Thermo Haake

service department is at your disposal for repair work.
Do not operate the unit with wet or oily hands.

Do not expose the unit to spray water or immerse it in

water.

Do not clean the unit with solvents (fire risk!)

-

a wet
cloth soaked in household detergent is normally suffi­cient.

This device is not designed according to the standard

EN 60601-1: 1990 (DIN VDE 0750-1 and IEC 601-1) and
should not be operated in rooms used for medical pur­poses and/or in the vicinity of patients.

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Many units parts can become hot

as

a result of normal
unit functioning -there is a high risk of burns!
The overall temperature of the marked zone (see fig.)
will become higher than

70°C

when the bath tempera-

ture exceeds approx.

150°C.

Please ensure that ade-

quate contact protection is provided.

Do not move the unit from the position where it was set
up during operation or when it is still hot. There is a high
risk of burns!

!

Only use the heat transfer liquids recommended by

Thermo Haake. Please refer to the respective

EC

Safety

Data Sheet.

!

The temperature controlling i.e. immersing of test
tubes, Erlenmeyer flasks or similar objects directly
within the circulator constitutes normal circulator

practise.

We do not know which substances are contained within
these vessels. Many substances are:

inflammable, easily ignited or explosive
hazardousto

health

environmentally unsafe

i.e.:

dangerous

You alone are responsible for the handling of these sub­stances!

Our advice:

If in doubt, consult a safety specialist.
Read the product manufacturer's or supplier's

EC

Safety Data Sheet according to directive

91

11

55/EEC.

Read relevant regulations concerning dangerous
materials.

Observe relevant guidelines for laboratories in your

country.

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Safety Notes

The following measures were taken for the protection of
the operator:

Protection Class I according to VDE 01 06 TI (IEC 536)
i.e, protection against electric shocks by grounding all
parts which carry the risk of electric contact.

0

The device must only be connected to mains recep­tacles with a protective ground.

Protection lP 30 according to EN 60529 for all tempera­ture control units

F

and N, i. e. regarding the protection
against accidently touching live parts and damage by
foreign matter, it has been ensured that foreign bodies
with a thickness or diameter of more than 2.5 mm can-

not penetrate.

Protection IP 20 according to

EN

60529 for all cooling

units, i. e. regarding the protection against accidently

touching live parts and damage by foreign matter, it has

been ensured that foreign bodies with a thickness or di­ameter of more than 12 mm cannot penetrate.

0

NO special precautions were taken against the pe­netration of water and dust. The device should there-

fore not be used in a dusty atmosphere or in the neigh-

borhood of spray water.

0

Do not insert wires or tools in any of the openings.

!

Complete separation from the mains is required
when:

-

all dangers caused by this device are to

be avoided,

-

cleaning is carried out,

-

repairs or maintenance work is about to be
carried out.

Complete separation means:

Pull out the

mains

plug!

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5.

Unit

Description

All units fulfill the requirements of safety class 2 according to

DIN

12879

and are thus suitable for unsupervised continu-

ous operation.
The circulator pump motor is protected against thermal over-

loading.

All

temperature sensors are permanently monitored

according

to

break or short circuit. The cooling machine is

integrated into the general safety circuit.
The control of the preselected temperature

is

carried out

automatically via the Thermo Haake ~uzz~~tar@ control.

5.1

Safety features

The comprehensive safety system is designed on the princi-

ple of the concept of the "single fault"

(EN

61

01 0).

This as­sumes that two separate faults do not occur simultaneously.
This system therefore offers protection against

one

(single)

fault. This one fault will effectively occur automatically

...

if you do not read this manual,
if you do not correctly set the excess temperature

protection, i.e. the safety reserves have already been
used up.

Such faults can include e.g.:

Fault in the temperature control unit:

=.

Excess temperature poss. fire danger

Leakage in the liquid circuit

or

Evaporation of heat transfer liquid:

=.

Low liquid level

-

poss. fire danger

Pump blocked

or

Heat transfer liquid

is

too highly viscous:

*

Motor overheating

-

poss. fire danger

Or also:

Excess temperature protection level not correctly set:

=+

poss. fire danger

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Unit Description

5.2

Safety class 2 according to

DIN

12879

A

variably adjustable excess temperature protection and in­dependent low liquid level protection which is preset to the
lowest level allow the usage of different heat transfer liquids.

If a safety element is triggered..

.

the cause for the fault is displayed,
the

safety-relevant components

(heating element,
motor and compressor) are switched off immediately
i.e. the safety circuit transfers the unit to a stable, safe
condition,

the temperature of the heat transfer liquid gradually

adjusts to ambient temperature.

5.3

Applications

As open-bath circulator:

For temperature controlling samples within the circula-

tor's own bath.

As heating circulator:

For temperature controlling closed temperature control
circuits such reactors, heat exchangers or similar ob­jects.
Temperature controlling of open vessels using the
built-in combined pressure and suction pump.

5.4

Temperature ranges

Working temperature range:

The temperature range of the circulator without addi­tional heating or cooling sources.

Operating temperature range:

The temperature range of the circulator which can be

reached if additional heating or cooling sources are
used.

Tap water can be used as a cooling source. In this case
the minimum working temperature possible is approx.

3°C

above that of the tap water temperature.

!

High operating temperatures mean the unit sur-

faces heat up. Protective measures must

be

taken!

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Unit

Description

Mains cable:

The

mains

cables used are specially designed for

usage with heating elements. They can

be

allowed to

come into contact with parts which are heated up to

a

temperature

of

max.

250°C.

Warning for maintenance personnel: Please en-

!

sure that the same sort

of

cable is used in case of

replacement!

(Order no.

082-2409)

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6

C

E

Unpacking / Setting

6.

Unpacking / Setting Up

6.1

Transportation damage?

Notify carrier (forwarding merchant, railroad) etc.
Compile a damage report.
Before return delivery:

Inform dealer or manufacturer
(Small problems can often be dealt with on the spot).

6.2

Contents

2

Coupling Nuts

(already assembled) 1 Instruction Manual

2

Plug pieces
(already assembled)

2

Hose fittings
for hoses 8 mm

2

Hose fittings
for hoses 12 mm

(E),

(D),

0

(B),

0

(C)

Up

4

Hose clamps,

1 Warranty Card

(please

fill

out and return)

6.3

Ambient conditions according to

indoors, max. 2000 meters above sea level,
ambient temperature

relative humidity max. 80%/31

excess voltage category I I, contamination level

6.4

Resting time after transportation

(only for refrigerated circulators)

As we can unfortunately not guarantee that our refrigerated
circulators are always transported according to our recom­mendations (i.e. upright), lubrication oil can leak from the
compressor into the cooling circuit.

If the refrigerated circulator is started up whilst still in this
state, the compressor may be damaged to the lack of oil.

Therefore:

Rest the unit for

!

6.5

Ventilation

5

...

40"

C,

24

hours after setting up.

"C

EN

61010

(+

50%/40°C)

2

Keep all ventilation grids (on front and rear) free from

obstruction to ensure unhindered air circulation.

Blocked ventilation grids lead to increased unit

(

=

heating which in turn reduces the cooling capacity
and thus impairs correct functioning.

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6.6

Information concerning the

CE

sign

Thermo Haake circulators and cryostats carry the CE sign

which confirms that they are compatible with the

EU

guideline
89/336/EEC (electromagnetic compatibility). The tests are
carried out according to module

H

(official sheet L380 of the

European Community) as our quality assurance system

is

certified according to DIN

1

IS0

9001.

The specialist basic standards to be applied are

EN

50081

-2

for interference emission and

EN

50082-2 for interference

resistance. The following tests were carried out:
fa according to

EN

50081

EN

5501 1 class B (interference voltage)

EN

55011 class

B

(interference radiation)

EN

50082

EN

61

000-4-2 (discharging static electricity)

ENV

501

40

(electromagnetic

HF

field,

amplitude modulated)

EN

61 000-4-4 (quick transient interference

variable)

ENV

501

41

(high-frequency asymmetrical,

amplitude modulated)

EN

61

000-4-8 (magnetic field with power-

engineered frequency)

There are thus no limitations placed on usage.

A

declaration
of conformity can be supplied with the ordered unit on
request.

Our strict standards regarding minimum operating quality and

the resulting considerable amount of time and money spent

on development and testing reflect our commitment to guar­antee the high level of quality of our products even under
extreme electromagnetic conditions. Practice however also
shows that even units which carry the

CE

sign such as moni­tors or analytical instruments can be affected if their manufac­turers accept an interference (e.g. the flimmering of a monitor)

as the minimum operating quality under electromagnetic
compatibility conditions. For this reason we recommend you

to observe a minimum distance of approx.

1

m from such units.

The CE-sign also certifies the conformity with the EU-direc­tive

72/23/EWG

(low voltage regulation). The applied stan-

dards are

EN61

01 0-1 and EN61 01 0-2-01 0.

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Unpacking / Setting Up

6.7

Mounting onto bath bridges

The bath bridges will be delivered unassembled

by means of transportation.

rn

!

Switch off the unit and pull out the mains plug.

Loosen the 2 crosshead screws right beside the
pump connections.

Slide the metal jacket to the front (slightly bending
may be necessary) and remove it.

Place the gasket around the opening and slide

the control head inclined through the opening.

!

Lift the float to avoid any damage.

Fix

the jacket again with the 2 crosshead screws.

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Functional

Elements

7.

Functional

Elements

7.1

Front

F

and

N

I

[FUZZY

,DENT

1320.~1

Symbol: Read the instruction manual!

Mains switch
Reset button
Excess temperature setting
Menu selection key

LCD

display

Value selection

(t)

left

Value selection

(+)

right

Value alteration

(?')

higher

Value alteration

(J)

lower

Enter key

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Functional Elements

No

e

fuses

if

delivered with a
refrigerated bath

7.2 Rear

F

and

N

Socket for external alarm device
Socket for analog control signals (option)

Socket for external Pt100 sensor

RS

232C

Name plate
Pump inlet: back flow from the external object
Pump outlet: pressure to the external object.
Cooling coil fittings for tap water cooling (not for
cooling coil is delivered with the bath vessel);
not in conjunction with refrigerated baths

Mains cable (or cable to the refrigerated bath)
Fuses (not in conjunction with refrigerated baths),
if the fuses are triggered, see chap. 11.4
Control cable to the refrigerated bath

interface

N6:

the

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Functional

Elements

7.3

Bath

vessel

65

(example

model

for

87

and

812)

40

Opening for temperature control module

41

Bath opening with bath covering (standard feature)

42

Handle

43

Drainage

nozzle

W

The

bath vessels

87

and

812

are delivered with

a

cooling coil for tab water cooling

(for

hoses

with

8

mm

inner

a).

The flow direction of

the

water can

be freely selected.

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Functional Elements

7.4

Refrigerated bath

C25

(example model

C20, C35, C40, C41

,

C50

and

C75)

Symbol: Read the instruction manual!

Handle
Drainage nozzle
Opening for temperature control module
Bath opening with bath cover (standard feature)
Ventilation grid (removeable, four mounting points:{)

Fuses

(if

the fuses are triggered, see chap.

11.4)

Socket for cable

30

from temp. control unit FIN
Mains cable
Socket for control cable

32

from

FIN

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Hoses

8.

Hoses

8.1

Connecting Hoses

@

Pump nozzle

A:

return flow from external object
outlet to external object (pressure side)

Hoses are normally used to connect the pump with an exter­nal vessel.

If

objects are to be temperature controlled in the

internal bath only, the pump nozzles

A

can be closed with a

,

.

3

@

covering plate D attached with a union nut E (supplied as

L.

standard). However, in order to achieve a better temperature
constancy, it is recommended not to close but to connect the

A

D

E

two nozzles with a short hose with

a

min.

length of

50

cm.

General recommendations concerning the max. allowable

length of hoses cannot be given. It all depends largely on the
size, form and material of the external vessel to

be

tempera-

ture controlled. It should be understood that the length of

a

hose and its diameter combined with the circulating capacity

have a large effect on the temperature control effectiveness.
Whenever possible, the decision should be made in favor of
the wider hose diameter and the vessel to be temperature

controlled should be placed as close as possible to the circu-

lator.

!

High operating temperatures will lead to high tem-

peratures on the hose surface, this is even more so
at the metal

nozzles. In this case:

DO

NOT TOUCH!

!

The required hose material

is

dependent on the

heat transfer liquid used.

!

Hoses must not be folded or bent!

A

wide

radius should

be

used

if

turns have to be

made!

!

Hoses may become brittle after prolonged use or

they may get very soft. They should, therefore, be

checked regularly and exchanged

if

necessary!

!

Secure all hose connections using hose

clamps!

8.2

Selecting Hoses

Thermo Haake circulators will be delivered without any

hoses. Due to the unknown application at the time of ship­ment and the extremely wide temperature range of the circu­lators it became impossible to deliver hoses as standard
accessories. Please select the proper hoses from the follow­ing table.

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Hoses

Description

Insulated

metal hoses

made from stainless steel with M 16 x 1
unions on both ends. To be used from -90 to +350°C
50 cm long

100 cm long
150 cm long
Coupling to connect

PVC hoses

8

mm

i.

to be used only with water

0; per meter

2

hoses to each other

12 mm i. 0; per meter

Viton hoses

8

mm i. 0; per meter

12 mm

i.

Silicone hoses

for a temperature range of -60 to +200°C

0;

per meter

for a temperature range of -30 to +220°C

(not to be used with any silicone oil, for example SIL or Synth 60)

8

mm

i.

0; per meter

12 mm

Perbunan hoses

8

12 mm

mm

i.

0; per meter

i.

0;

per meter

i.

0;

per meter

for a temperature range of -40 to +lOO°C

Order-No.

082-0663
082-0664

082-01 72

082-01 73

Foam rubber insulation

for

PVC,

Viton, Silicone und Perbunan
hoses
for hoses with

8

mm

i.

0; per meter

for hoses with 12 mm i. 0; per meter

8.2.1

If other hoses are used it must be ensured that the hoses se­lected are fully suitable for the particular application,

they will not split, crack or become disengaged from their

nozzles.

A

B E

The hoses are connected using the hose fittings B supplied
for

8

with the coupling nut

For the isolation
rubber isolation.

806-0373

806-0374

Plastic and rubber hoses

i.e. that

or 12 mm 0 which are attached to the pump nozzle

E.

it

is highly recommended to use the foam

A

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Hoses

8.2.2

Metal hoses

Thermo Haake metal hoses (stainless steel insulated) offer

a particularly high degree of safety and are suitable for both

low and high temperatures.

The metal hoses are attached directly to the nozzle

A,

gas-

kets are not required.

!

The hoses must not be extremely bent

or

subjected

to mechanical strain!

These hoses are available in lengths of

0.5,

1

.O

and

1.5

me­ters from Thermo Haake. Couplings for connecting two
hoses are also available if other lengths should be required
for a particular application.

The smallest opening inside the metal hoses is

10

mm. The

metal hoses are provided with coupling nuts

(MI6

x

1,

DIN

12

879,

part

2)

at either end. The counter piece for attaching

them complies to the left hand sketch.

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Hoses

8.3

Tap water cooling

Only for units without own refrigeration unit!

8.3.1

Connection to cooling (tap) water

Using the cooling coil a lowest operating temperature

3°C

approx.

ture can be achieved.

above the given cooling water tempera-

N--67

Iil

Use hoses with

w

W

/

\

I

water cooling coil
freely selected. It must be taken care that at the outlet

side, the water can run out unhindered.
Pressure fluctuations of the public water net may ham-

per the temperature constancy. For proper results the
water pressure should be stable or measures should

be taken to keep it stable.

The min. pressure should not be below 1 bar.
The amount of flow should be set to a min. value. At

first the full flow should be used so that the unit can

reach its operating temperature. Then, the amount of

flow should be reduced using the water cock or a hose

clamp. The actual temperature will rise above the set

temperature if the water flow is insufficient. If so in-

crease the water flow.

8.4

External Cooling Devices

8

mm internal 0 and connect to the tab

W.

The direction of the flow can be

With the flow-through cooler

heat transfer liquid can be cooled down and the circulator
can be rendered independent of tap water.

The flow-through cooler is hooked up into the return flow line
of the external vessel and from there to the circulator

ure).

The assembly and application are described in the cooler

instruction manual in detail.

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DKI

5

from Thermo Haake, the

(seefig-

Hoses

Closed
System

from

to

Pressure

pump

8.5.1

Temperature controlling an object in the

internal bath

Close pump pressure and return port with the closing

pieces and coupling nuts (see chap.

8.1)

or, better yet,

connect the two nozzles with a short hose.

8.5.2

Connection

of

external closed systems

E.g.

instruments with a pressure-tight temperature

jacket or coil or a heat exchanger (external system).

Hose connection:

From the pressure port to the exter-

nal system and then back to the return port.

If

it cannot be avoided that the external object is si-

tuated higher than the circulator, the heat transfer will

only not flow back on the condition that the system is
completely tight and leak-free. To be on the safe side
it may be considered necessary to fit stop cocks to the
inlet and outlet hoses.

8.5.3

Connection of external open systems

Hose connection:

From the pressure port to the exter-

nal bath and then back to the suction port.

With a hose support (optional accessory) which is

employed for baths with a wall thickness up to

26

mm,

both the pressure and suction hose are securely held.

With a clamp in the pressure hose the amount of the cir-

culating liquid is balanced with that of the amount float-

ing back. It is recommended to use a hose with

8

mm

interior-0 as pressure hose and one with

12

mm inter-

ior-0 as suction hose.

The end of the pressure hose in the bath vessel should

be placed in a position where an optimum circulation

within the bath is achieved.

The liquid level of the external bath can

be

adjusted

with the end

of

the suction hose.

The external system and the temperature unit have to

be arranged so that they have the same liquid level in
order to prevent draining by siphoning action. In case

the application requires that both systems have to be

situated at different levels, the two hose lines have to

be closed prior to turning off the temperature unit.

When a safety element causes a shut off, the

si-

phoning

of

one of the vessels cannot

be

prevented.

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Filling

9.

Filling

with Bath

Liquid

The selection of the proper bath liquid (heat transfer liquid)

influences the capacity of

a

temperature control unit deci­sively. The technical data with special emphasis on the tem­perature accuracy was established in accordance with

DIN

58

966

(water at

70°C).

The temperature accuracy will decrease the higher viscosity
of the heat transfer liquid and the lower its heating capacity

IS.

It is difficult to arrive at valid statements which can be applied
as a general rule as the length of the hoses, the volume and

the material of the connected systems have

a

great influence

on this accuracy.
The heating up and the cooling down time of a system to be

temperature controlled can be influenced by the bath liquid
too. Oil, for instance, cuts this time in half when compared to
water.

9.1

Recommended bath liquids

Distilled

Water

Normal tap water leads to calcareous deposits neces-

sitating frequent unit decalcification.

!

Calcium tends to deposit itself on

the

heating ele­ment. The heating capacity is reduced and service
life shortened!

Water, of course, can be employed up to 95"C, howev-

er above 80°C water vaporization reaches a level
which necessitates the liquid to be constantly replenis-

hed.

Water

with

Antifreeze

In applications below 5°C the water has to be mixed with an
antifreeze. In doing so, the amount of antifreeze added
should cover a temperature range

10°C

lower than the oper­ating temperature of the particular application. This will pre­vent the water from gelling (freezing) in the area of the evap-

orating coil the surface area of which

is

much colder than the
working temperature. An excess of antifreeze deteriorates
the temperature accuracy due to its high viscosity.

SIL

I80

...

this heat transfer liquid is suitable for covering nearly the
entire range with just one liquid especially when used with
the cooling units C25, C40 and C41.

Unfortunately

SIL

180

has a creeping tendency necessitat-

ing the occasional cleaning of the

bath

cover.

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other

temperatures

!

lmportant

!

!

Important

!

!

Important

!

!

Important

!

!

Important

!

Methanol

or

Ethanol

Those liquids are usually only used at lower temperatures.
Their flash point is at about

10°C.

Therefore, they cannot be

used in accordance with the standards

EN

61010

or

DIN

12879.

Thermo Haake offers a range of heat transfer liquids for
these temperature control applications.

Synth

...

:

Synthetic thermal liquid with a medium life span

(some months) and little smell annoyance.

SIL

...

:

Silicone oil with a very long life span

(>

1

year)

and negligible smell.

Please use the table on the next page or get in contact with
us if you should have any questions. We are

glad

to advise

you and can help you to choose

a

heat transfer liquid suitable

for your application.
Thermo Haake heat transfer

liquids

are supplied

with

an

EC

Safety Data Sheet.

Thermo Haake takes no responsibility for damages
caused by the selection of an unsuitable bath liquid.

Unsuitable bath liquids are liquids which e.g.

are very highly viscous (much higher than

30

mPa-s at

the respective working temperature)

have corrosive characteristics or

tend to cracking

It

is absolutely mandatory that the overtemperature cut­off point is set lower than the fire point for the heat trans­fer liquid selected

(see

chapter

14.).

The highest working temperature as defined by the

EN

61 01 0

(IEC

1010)

must be limited to

25°C

below

the fire

point of the bath liquid.

Please ensure when selecting other heat transfer liquid

than ours that no toxic gases can be generated and bear

in mind that inflammable gases can build up over the liq­uid during usage.

At bath temperatures of over

200°C the

usage

of

a

heat

take-off

is

recommended.

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Filling

I

Flash point

"C 1 57

1

170 1 300

1

-3

1

59

1

227 1 260

1

Range of Application

Fire point

"C

Temperature range

250"

I-

2mo

1

I

0

C

i

Sil

100

>I00

75

5

tram-

palent.
colour­less

Sd~cone

140
1,03
2,00

,

,

tlnns- trans-

tmns-

parent. parent,

parent,

colour- colour- colour-

less less

less

Sil

180

>225

Colour

Viscosity

at

20°C

[mPas]

Density

at

20°C

[kg/dm3)

Specific

heat capacity

[kJ/kg"K]

tmns­parcnt,
colour-

less

3

039

1,67

11

0.93

1.51

trans- trans­parent, parent,
light- yellow
brown

Sil

300

>325

Reacts with

Synth

20

*)

no

sp.

Synth

60

70

200
1,08

1.56

Silicone Silicone Light- Rubber Copper Copper

metals Silicone Light- Light­Zinc metals metals

Bronze Bronze

Order-So 10 I Cantuner 999-0202

1999-0204

yW-02~ 1 999-0208 W-0210

999-0226

6190214

1

5

lCanr~ner

999-0201

1999-0201

YW-0205

/

9W-0207 vPY-O~O~ 999-0225 (999-0213

1

'I

Clnnor

be

aprted.

uw

merhylcyclohuan

zr

hath

lqud

EC-Safer)

Data

Sheets

\dl

be

dchvcrcd

togcther

wth

each contvner

of

Llqud

no sp

=

no

spec~t~catlons

Synth

200

>235

<1

0,77

nosp.

Synth

260

275

2

0.76
2,10

100

0.86
1,96

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Filling

1

9.2

Filling with

heat

transfer

liquid

Filling level of the interior bath:

max.

up to

2.0

cm below the cover plate,

min. up to

5.0

cm below the cover plate.

-

-

-

_

When working with water or water with antifreeze:

or with oil below ambient temperature:

the filling level should be

2

cm

below the deck plate.

When

working with oil above

80°C:

Keep level somewhat lower. Oil expands when being
heated. Rule of thumb: 10% volume increase per 100°C heat
increase.

External systems included within the circulating circuit have
to be filled with the same heat transfer liquid in order to avoid
too much liquid being drawn from the internal bath.

#

The bath level should be checked when the preset tem-

perature has been reached!

Quite often closed external systems cannot be prefilled as

suggested.

In this case the internal bath of the unit has to be

ALARM

ji

filled to the max. level. After starting the unit, the pump will

feed the necessary liquid to the external system. Should the

-

LEVEL

demand be higher than the volume difference between high
and low, the low liquid level sensor will be activated and the

pump switched

off.

In

this

case:

Replenish the liquid.

@

Reset the unit:
Depress the reset button.

3

The unit starts up again

@

Repeat this action if necessary.

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10.

Draining

The temperature control unit is drained at the nozzle.

Place a suitable vessel underneath nozzle.

0

Bear in mind that the liquid will run out in a slight arc.

Turn plug slowly until it becomes disengaged from the
thread.

A

pin will prevent the liquid from running out

right away.

Pull out plug (pin) in one quick motion. The liquid will
start to run out.

Possible residues can be drained by tilting the circula-

tor slightly.

!

Hot heat transfer liquid should not be drained!

When certain conditions make draining necessary,

please act safety conscious: Wear protective
clothing and protective gloves!

Option:

H

Use the liquid drain (order no. 333-0499). This push and pull

version makes emptying easier.

For assembly it is necessary to use

a

fork wrench of

17

mm.

I I

Double safety against unintended opening is avoided if the
nozzle will be closed by the closing screw after use.

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Connecting

Up

11.

Connecting

Up

11

.I

Connecting to the mains

Only attach this unit to mains sockets with a grounded earth.

Compare the local mainsvoltage with the specifications writ-

ten on the name plate. Voltage deviations of

+/-

10%

are per­missible. The socket must be rated as suitable for the total
power consumption

of

the unit.

Make sure that the temperature controller

F8

or

N8

are

safely connected to the refrigerated units with their

two

cables

30

and

32.

11.2

Checking the liquid circuit

Before switching on, check again to make sure that the pres­sure and suction ports are either connected with each other
or blocked with covering plugs or alternatively if an external
object is to

be

temperature controlled, that the hoses are

connected correctly and secured (see chapter

8.).

11.3

Changing the mains plug (e.g. for Great Britain)

!

This should only be carried out by qualified spe-

cialist personnel!

The mains cable wires have the following colors:

Brown

-

-

Live

Blue

-

-

Neutral

Green/Yellow

=

Earth

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Connecting

11.4

Fuses on the unit

All units are equipped with automatic thermally-triggered
fuses.

Up

If the fuse has triggered..

the fuse does not have to be exchanged - resetting suf-

fices;

a white marking is visible;
a certain cooling down time should be allowed (approx.

5

min) before the (dip) switch can be pressed again.

!

Do not use tools; do not use force. Both destroy the

fuse.

!

If the fuse should be triggered again after resetting,
the unit probably has a defect. In this case the unit

should be sent in for servicing.

.

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T-SELECT

IT]

SETUP-,

STATUS SETUP-2

Configuration

12.

Configuration

Especially when putting into operation for the first time it is
necessary to adjust some parameters.

The menu key is used to open the main menu or to leave

other menus after input.

The enter key is used to confirm a selection.

Use the arrow keys to select the desired menu point.

Select CONFIG in the main menu.

Under CONFIG there are several submenus.

In the following displays

the

selected submenu

is

shown

in

the first line.

COMPUTER ANALOG

i

12.1

Interface

RS

232C

Select I/O and then

COMPUTER

(for more information see

chapter

18.).

I

COMPUTER

1-

1

24.40°C

DEUTSCH FRANCAIS

12.2

Analog interface (option!)

Select

I10

and then

ANALOG.

This menu point only will be

active in combination with

a

built-in 1/0 socket.

This option will be described separately.

12.3

Language

Select

SETUP-1

and then LANGUAGE.

Confirm the selected language with

ENTER.

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Configuration

CONFIGISET-IF-DISPLAY

12.4

Temperature display

Select SETUP-1 and then T-DISPLAY.

CELSIUS:I/IOO

GRAD

Confirm the standard ("C,

OF

or

K)

and the resolution (0.1 or

0.01) using the ENTER key.

12.5

Autostart

Select SETUP-1 and then AUTOSTART.
With the enter key confirm AUTOSTART ON or OFF.

AUTOSTART

OFF

OFF

1

AUTOSTART OFF
The temperature control module switches itself

off

in case of

a power failure. Switching on again is only possible with the

START command in the main menue. This is due to safety
reasons. The unit reacts in the same way if it is switched on

via a mains switch in the laboratory.

CONFISET-1 IAUTOSTART

24'40°C

TOTAL

-1

L

AUTOSTART ON
The temperature control module switches on automatically

after a power failure and will be operating with the saved
values.

!

Please consider any possible resulting risks!

12.6

Reset

Select SETUP-2 and then RESET.

TOTAL resets to the default parameter settings

!

PARTIELL only re-initializes the ~uzzy~tar~ control.

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Configuration

LC0 CONTRAST VOLTAGE

IF,

m,

=J

On

OFF

J

VERSION

OSW:

1.00

ALARM CIRCUIT

OK

C-ALARM CIRCUIT

OK

CONTROL INTERNAI
V241R232 SELECTED

12.7

Display

contrast adjustment

For contrast adjustment of the display select SETUP-2 and
then LCD-CONTR.

Change the contrast using the

(+)/(-.)

keys. The value will

be shown in

%,

The contrast changes with

a

short

delay.

12.8

Acoustic

Signal

Select SETUP 2 and then BEEP-PG.

Whenever the

BEEP

has been switched on an acoustical
message appears after the program run. This will last for one
minute.

12.9

Version

numbers

For servicing or in case

of

product en uiries the version

%

numbers of the software or the FuzzyStar control should

be

given.
Select STATUS and then VERSION. The version numbers

will be shown.

12.10

Operation status

For information about the operating status (alarm circuit of

the instrument or cooling device

(GAL...),

internal or exter­nal control and interface) please select STATUS and then
B-STATUS.

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Operating

Operating

Switching on
Set the excess temperature limiter well above the

desired set temperature.
Switch on the unit via the mains switch

@

at the tem-

perature control unit FIN.

Two temperatures are shown on the main display:

set temperature (e.g. 43.20°C) in the top right corner

(the temperature momentarily to be reached)
actual temperature (e.g. 24.40°C) in the center.

FUM 43.20°C

1

This results

in

the following display if 'AUTOSTART: OFF'

a

START flashes in the display

MAlN MENU

0

I

wl

T-SELECT

CONFIG

CONTROL

[TI

T-SELECT

1

CONFIG CONTROL

(

MAlN MENU

1

I]

T-SELECT

CONFIG CONTROL

Select the main menu, alter the configuration, control
or temperature setting if desired and initiate START via
the ENTER key.

The main menu display then shows STOP. The unit can
be rendered inoperable at any time

by

executing STOP

via pressing the ENTER key.

!

C35:

In case of restarting the unit within approx. 5 min-

utes after it had been stopped the cooling com­pressor will be switch on delayed for safety rea-

sons.

!

All refrigerated circulators:
To increase the life of the refrigerated unit,

it

is re-

commended to wait five minutes after switching off

before the unit is restarted.

This results in the following display if 'AUTOSTART:

ON'

The unit begins to work immediately. The pump, heat-

ing, cooling and control functions are active straight
away.

The unit can be rendered inoperable by selecting

STOP in the main menu and then pressing the ENTER

key.

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I

CONTROUINT-EXT

I

INTERNAL

EXTERNAL

FUZZY-\D

FOLGEREG

*

24.40°C

SELECT

:

STANDARD

CONTROUINT-EXT

r-----7

CONTROUCOOLING

[=I

OFF

)

UNLOCK COOL-HT

13.2

Working with internal

or

external control sensors

The internal control sensor is an immovable fixture. Any
commercially available

Pt100

sensor equipped with 4-wire

technology can be used as the external sensor. For connect-

ing up see chapter

17.

The circulator must be switched

off

and

on

again after insert­ing an external sensor. The function EXTERNAL is other­wise not selectable. The unit switches automatically back to
the function INTERNAL.

c!l

Select CONTROL, then INT-EXT and choose if you

want to work in the INTERNAL or EXTERNAL mode (or

in the "FOLGEREG" mode).

Three different control speeds are selectable in the EXTER-

NAL mode.

@

Select CONFIG

-..

SETUP-2

-+

DYNAM.EX

The unit is preset to the control speed STANDARD. Over­swinging is thus avoided for the most part. The time until the

desired temperature has been reached can however be
quite long. If you would like to shorten this, select MEDIUM
or FAST. When using the setting FAST you should reckon

with quicker control times. The setting

MEDIUM

results in
moderate overswinging and medium control speeds. The
level of overswinging is dependent on a number of factors

such as the volume of the external system. the heat transfer

liquid used, hose length, the working temperature and many
others. No general statements can thus be made at this
point.

"FOLGEREG" mode: temperature control is depending on
the measured temperature at the external sensor.
*To activate this menu the menu key has to be pressed while
switching on the unit until the first display message appears.

13.3

Working with or without cooling

You should decide if the usage of the cooling aggregate (if

fitted) is necessary depending on the desired set tempera­ture.

Select CONTROL and then COOLING.
Switch the cooling aggregate ON or OFF.
The crossed-out star is on when the cooling unit is off.

When

chosing COOLING

ON

the complete cooling capacity

is available for the cooling unit

of

the

C25.

All

the

other

units

are cooling controlled.

When switching shortly between ON and

OFF

the cooling

unit of the

C35

will start only with a delay of 3 minutes. Atimer

in the display will show the timing.

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Operating

[

T-SELECTISETPOINT

1

I

SETPOINT: +040.00'C

I

SET-NEW +050.0WC

I

FUZZY

DENT

50.00°C

I

If the set temperature value is higher than 100°C the cool­ing unit will not be switched on. Nevertheless, for special
applications, e.

g.

an expected exothermal reaction, it could
be suitable to let the cooling unit run (only partial cooling
capacity of

30%

of the full capacity).

Select CONTROL, then COOLING and then COOL-HT.
Switch to ON if the cooling unit should run (default set-

ting is OFF).

13.4 Setting the desired set temperature

The settings apply to the internal or external control sensors

according to the selected mode INT-EXT (see chapter

13.2).

Select T-SELECT and then SETPOINT. The currently
valid value is displayed in the SETPOINT line. The
SET-NEW line indicates the alteration.

Use the arrow keys to select the digit to alter.

Alter the value between

0 and

9.

Confirm the changes with the ENTER key.
The new value is accepted in the SETPOINT line.

IDENTflashesfor ashort time after the desired temper­ature has been set: The

FuzzyStar-controller is deter­mining the right parameter. It can happen that heating
or cooling is interrupted during this process and the dis­played temperature changes. This is because the con­trol unit requires some time to determine the parame­ters.

To switch off the identification please see chapter

15.9.

The input is blocked if a temperature setting over I10 port
already exists or the programmer is active. The message

"110

started" or

"PG

started" will be displayed.

13.5 Setting the

RTA

system correction value

The display shows the actual temperature at the internal

or

external control sensor with the selected resolution.
This temperature does not correspond directly to the tem-

perature in the circulator's bath and even less to the temper­ature in the external connected system.

The temperature difference

is

determined by measuring the
actual current temperature using a suitable measuring de­vice (calibrated or gauged thermometer).

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Operating

T-SELECTIRTA-INTERNAL

It is entered into the circulator as the correction factor RTA

RTA-INT:

+01.56"C

and remains stored there.

RTA-NEW:

+02.78"C

The correction factor only refers to this one application. A

26.80 "C

i

new altered correction test setup. value is required for any new temperature or

a

RTA-EXT:

t02.89"C

RTA-NEW:

+01.87"C

26.80

"C

!

T-SELECTMIGH-LIMIT

1

H-LIMIT

+154"C

L-LIMIT:

-050°C

1

I

LL-NEW:

+3WC

/

26.90 "C

or:

H-LIMIT:

t154"C

L-LIMIT:

-027°C

I

LL-NEU:

-050°C

I

FUZZY

IDENT

43.20"C

Select T-SELECT

and

then RTA. Alter the display in

same way as described in chapter

13.4.

Only

if

a value input has been made it can be

switched over to negative

(-)

values.

13.6 Setting temperature limit values

The setting range of the operating temperature of the circula­tor can be limited if the application or the flash point of the

selected heat transfer liquid requires this.

!

This is not a safety element but merely an aid to

help avoid

user

faults

when

operating the unit.

The

excess temperature protection must be set

sepa-

rately.

When in the external control mode (for EXTERNAL setting
see chapter

13.2),

the limits set restrict the temperature in

the circulator's own bath in order to guarantee

a

higher
degree of safety against unintentional heating up or cooling
down.

a

Select T-SELECT and then

LIMIT.

Alter the display in

same way as described in chapter

13.4.

First HIGH and then LOW-LIMIT.

If the HIGH-LIMIT value is lower than the set tempe-

rature value, the set value is decreased according

to the HIGH-LIMIT value.

13.7 Controlling heating and cooling

Heating and cooling are cycled.

!!!

is illuminated when

heating is activated.

@

or is illuminated when cooling

is activated. Flashing of the star means a cooling control bet-

ween

30

and

100%.

lights up if cooling is active with full cooling capacity,

X

lights up if cooling is active with partial cooling capacity,

8

lights up if the cooling unit is off.

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Excess Temperature Protection

14.

Excess Temperature Protection

If this safety device is triggered:

1

ALARM

-

BATH

The alarm indication on the display flashes
An acoustic signal is sounded

all voltage conducting unit components (the heating
element, the pump motor and if available, the compres-

sor) are switched off immediately

transfers the unit to a stable, safe condition.

0

The fault cause must be identified and remedied.

After the fault has been eliminated the unit can be started
again by pressing the reset key.

14.1

It offers protection against dangers caused by an uncon-

trolled heating up of the heat transfer liquid above the de-

sired set temperature.
The cut-off temperature is adjusted with the excess temper-

ature setting dial.

Excess temperature protection dial

i..e. the safety circuit

0

Proper protection can only be guaranteed
cut-off point has been correctly set.

There are two main aims for correct setting:

Safety (primary importance):

Protection against ignition of the heat transfer liquid.
The cut-off point must be set at least
fire point of the bath liquid used.

Protection of the object to be temperature con-

trolled (secondary importance):

Additional

cut-off point should be set as close as possible to the
desired temperature value.

protection, e.g. of a biological sample. The

25°C

if

below

the

the

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Excess

Temperature

Protection

14.1

.1

Setting

the

excess temperature

The cut-off point is set with the excess temperature dial with

a rough scale

of

temperature values arranged around it. This

scale, of course, can only serve as an approximate setting

meansfor this cut-off point. However, the cut-off point can be

determined to act exactly if the following procedure is ad-

hered to:

If for instance

a

bath liquid has a fire point of

60°C

the unit

should cut off after reaching 35°C at the latest:

a

First set the desired set value to exactly 35°C.

@

After the circulator has reached this temperature, turn
the excess temperature dial backwards very slowly (to

the left) until the unit cuts off (acoustic signal, alarm is

flashing).

Then set the set temperature to the actual temperature

(<

35°C).

@

Reset the unit via the reset key after the heat transfer
liquid has cooled down somewhat.

-

The unit can now be used for temperatures below
35°C. As soon as

35°C

is reached, it is securely

switched off.

14.1.2

Testing

the

cut-off point

Set the set temperature to a higher value than 35"C, set the
unit to heat up and watch the digital display. The value indi­cated when the alarm goes on is the real cut-off temperature.

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Fault Displays

15.

Fault

Displays

An acoustic signal is sounded and "ALARM" is shown on the

display. The heating element, the pump and if available, the
compressor are completely switched off.

I

ALARM

(

ALARM

+

I

-

LEVEL

24.40% 43.20%

ALARM

-MOTOR

15.1

Excess temperature

The excess temperature protection can be triggered if:

Excess temperature has been set too closely to

the desired working temperature

*

increase value slightly according to specifi­cations made in chapter

14.1

.l.

the control function is defective

=>

Return unit for servicing.

15.2

Low liquid level cut-off

The low liquid level protection can be triggered if:

there is not enough liquid in the bath

=

check for leaks, top

up

if necessary,

=>

fluid has evaporated, replenish liquid.

the prewarning has been ignored.

15.3

Pump or motor overloading

The motor or pump is blocked:

*

It can take

10

min or longer, until the motor tem­perature has sunk far enough so that the unit
can be switched on again by pressing the reset

key. If the circulator switches off again after a

short time, return the unit for servicing!

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Fault

Displays

I

ALARM

/

15.4

Sensor breakage

or

short circuit

This fault can correspond to the internal sensor

(RF

internal) or to an external sensor

(RF

external) con-

nected to the socket on the rear.

I

ALARM

/

-

lmprove shielding of the sensor connector cable.

(

see chapter

17.5

)

The sensor must be tested and possibly

exchanged

by

qualified service personnel.

4320°C

The message

"REF

means that the reference resistor

for the measuring value evaluation is out of order.

-

lmprove shielding of the sensor connector cable.

(

see chapter

17.5

)

return unit for servicing.

15.5

Undefined fault

I

ALARM

I

This can be caused by fault which only occurs for

a

short period of time, i.e. with a fluctuating bath level
when the filling level is very close to minimum.

Before returning the unit, top up with heat transfer liq­uid. This fault can often be remedied in this

way!

In all other cases this unit must be checked by qualified

service personnel.

15.6

External

fault

RS232C

L-----A

Check the external system.

ALARM

-.

RS

2326

The circulator has been switched to fault status via the

interface.

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Fault

Displays

)

ALARM

24.40% 43.20%

ALARM

-.

COOLING

1

ALARM

1

ALARM

1

ALARM

1

'

1

1

15.7

Error in connection with cooling units

The alarm message "COOLING-RELAIS" appears as

soon as an error occurs in the cooling unit. If the error
can be further specified one of the following messages
appears soon after the first error message has ap­peared. If the error cannot be specified, the message
"COOLING-RELAIS" keeps visible in the display.

If the compressor of the cooling unit is overloaded the

circulator will be switched to fault status: "COOLING".
Allow the unit to cool down for a few minutes and then
try to start up again. If the fault occurs again

return unit for servicing.

The alarm message "COOL.-VENTI" appears in case

of an overloading of the motor caused by the
compressor
The message "COOL.-RES." appears in case of an

motor overload caused by the compressor 2.

in both cases return unit for servicing.

"

COOL.-V24" appears there is a communation error

If

between the FIN head and the cooling device.
Restart the unit. If this error appears again:

return unit for servicing.

The message "COOL.-COUPL" informs about discon-

nection of the
Check the connection and fuses and restart the unit.

If the fault occurs again

*

return unit for servicing.

1.

FIN head and the cooling device.

...

...

The message "COOLING PRI (PR2)" indicates a too

24.40"C 43.20°C

ALARM

-+

COOL.-COUPL

1

ALARM

-.

COOLING PRI

-.

COOLING

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PR2

high pressure within the refrigerant circuit.

=

I

PRI
Possible reasons for appearance of message "PRI

When the message "PR2" appears restart the unit. In

case of a second error message inform the service.

=.

st step (PR2 = 2nd step)

ambient temperature too high
of heat; avoid insolation.

water supply is interrupted (for water-cooled ver-

sions only) or the water is too hot
the circulation is not interrupted.

Fins of the liquefier are dirty
according to chapter 20.1.

ventilation out of order (noise)

Return unit to service.

-,

eliminate sources

-.

make sure that

-+

cleaning of fins

+

return to service

":

C

43.20°C

15.8

Fault eliminated?

24.1

0°C

ALARM ELIMINATED

"ALARM

ELIMINATED" and "UNLOCK" appear alter-

nately on the display.

I

ALARM

I

-

T-TSET -5OC:FOl

u

20.00"C

ALARM

-.

IDENT-ERROR: F04

u

1

ALARM

1

-.

IDENT-ERROR: F05

L

.==.

The reset key must be pressed in order to start

up

the unit again.

Message

PR1

(and

PR2):

Depending on the unit type it can last

up

to one hour

until the unit is ready to restart.

15.9

Fault displays of the Fuzzy control
Fault

1

:

Fault during identification

If at the beginning of the identification the set tempera-

ture is changed by the user so that the temperature

difference between the actual temperature and the
new set temperature is smaller then

5"C,

fault

1

occurs.

Switch off and on unit.

or

RESET actuate in the SETUP-2 menu.

If you should set the desired temperature via the
I/O card, please

see

chapter

23.7.

Fault

4

and

Fault

5:

Fault during identification

During the identification, to determine ideal control

parameters the Fuzzy control repeatedly measures

temperature gradients, delay times etc.
The identification result, which

is

made up

of

a great

number of measurements,

is

continually checked for

plausibility.

In

case of discrepancy en error message

appears.
In order to remove the fault two different modes have

to be distinguished:

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Fault Displays

1

ALARM

-

IDENT-ERROR:

(

ALARM

I

-

IDENT-ERROR: FO5

INTERNAL EXTERNAL

20.00"C

1

F04

1

I

Operation with programmer:

If

fault 4 or

a

return unit for servicing.

Operation without programmer:

If

fault

turbed by external heat flow.

Arrange for constant temperature conditions and
try another identification run.

As this fault only occurs during the identification,
switch off the identification if necessary:

Select CONTROL, then INT-EXT, then FUZZY-ID
and define whether to switch on or off the identifi­cation.

If the fault occurs repeatedly:

return unit for servicing.

5

occurs while a program is running:

4

occurs, the identification is considerably dis-

'

ALARM

-

SRAM (SF,

dt):

20.00'C

F09

1

fault

5

If
level of external cooling or heating during identification.

If the fault occurs repeatedly:

Fault

If

a set temperature is selected that is less than 5°C
above the actual temperature, this set value is reached
without identification. In this case the control parame­ters are taken from the SRAM.

If these values are faulty, they are not accepted by the
Fuzzy control, and fault

=S

occurs, this indicates the influence of a high

Reduce the influence and try another identifica­tion run.

Please contact the Thermo Haake product spe­cialists.

9:

System factors in SRAM invalid

9

occurs.

Select a set temperature that is more than

above the actual temperature. This causes the
Fuzzy control to carry out an identification in order
to determine new control parameters.

5°C

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Fault

Displays

1

ALARM

1

Fault

15:

Bath temperature < L-Limit

If the low temperature limit (L-Limit) is changed so that
is above the actual temperature, fault

15

occurs.

In the

HIGHiLOW

menu select a low temperature

limit that is below the actual temperature.

*

ALARM

is still visible on the display.

3

The reset key must be pressed in order to start up
the unit again.

ALARM

disappears on the display

and the unit can be operated again.

Fault

1

6:

Heating defective
(internaliexternal control)

24.1

O'C

43.20°C

During the identification, to determine new control
parameters the Fuzzy control measures the time nec-

---

------

essary for a temperature step of

I

"C

at the control sen-

sor.

If this takes longer than

300

s (internal control) or

720

s

(external control), respectively, Fuzzy control assumes
a fault in the heating system, so that fault

16

occurs.

+

Return unit for servicing.

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Testing the Safety Features

16.

Testing the Safety Features

The safety features for excess temperature protection and

low liquid level protection must be checked at regular inter-

vals. The level of regularity of checking depends on the unit's

designated application and the heat transfer liquid used (in­flammable or non-inflammable). Practical experience has

6

to

12

shown that between

16.1

Excess temperature protection

times a year is sufficient.

Set a cut-off temperature (see chapter
than the desired set temperature. Switch on the circulator

and check if the circulator really does switch itself off at the
set cut-off temperature

If

not follow the specifications detailed In chapter 14.1.1.

It may be deemed necessary to have the unit checked over

by qualified service personnel.

16.2

Low

liquid

Drain the heat transfer liquid
a drain tap if necessary) and check if the unit really does
switch itself

If

not the unit must be checked over by qualified service per-

sonnel.

level protection

slowly

off.

14.1)

during operation (use

that is lower

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External

Connections

17.

External Connections

!

Only use shielded cable (see chapter

17.5).

17.1

Interface

RS232C

see chapter

18.

ALARM

B

::/'

Ptl00

17.2

Remote

alarm

Potential free contact with the following pin assign­ment:
Pin

1

=

make contact

Pin

2

=

middle

Pin

3

=

break contact

Alarm relay in

the

circulator:

The relay contacts 2 and 3 are open in case of an alarm
and when the instrument is switched off.

Rating: max.

30

V

max.

0.1

A

17.3

External

Pt100

sensor

A

sensor in four wire technology is necessary. Only

sensors with shielded wires can be used to fulfill the

EMC

requirements. The shielding must be connected
with the housing of the plug and the sensor shaft.
This sensor has to be connected according to the wiring
diagram.

Pin assignment:
Pin

1

=

current

l

+

Pin 2 =

voltage

U

+

Pin

3

=

voltage

U

-

Pin 4 =

current

I

-

The circulator must be switched off and on again after

inserting an external sensor. The function

EXTERNAL

is otherwise not selectable. The unit switches automat­ically back to the function INTERNAL.

17.4

110

port

(option!)

This port for analog small voltage will be delivered as
an option and is described separately (see appendix).

17.5

Shielded Cables

In order to keep the electromagnetic noise in the instru­ment within the tolerable limitGt is indispensable to use
only shielded

catles and high quality plug connections.

The complete contact of the shielding within the plugs

Attach

shielding

plane

is of special importance. Insufficient contact may lead
to noise penetration and result in performance errors.

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Serial lnterface

1

18.

RS232C

lnterface

The following circulator functions can be controlled by

a

computer via the interfaces:

9

6

Setting the desired set temperature, the upper and
lower limit temperatures and correction factor is pos­sible;

the actual temperature can be read off;
the circulator can be reset, started or stopped;

any fault messages can also be displayed.

The

RS232C

interface uses separate lines for sending and

receiving data.

18.1

Connecting to a computer with RS232C interface

The pin assignment required when connecting the cir-

culator to a computer via a

9-pin

socket is as follows:

Cable (9-pin to 9-pin)

3

1

TxD

-

)1

3

7

1

RTS

-

CTS

81

)I

8

81_

DSR

1

Computer

1

13

+

RxD(Received Data)

12

+

TxD(Transmitted Data)

17

CTS(Clear to Send)

18

*

RTS(Request

to

Send)

I

I

Circulator

The pin assignment required when connecting via a

25-pin

socket is shown overleaf.

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Serial

lnterface

The pin assignment required when connecting the circulator

to a computer

via

a

25-pin

socket is as follows:

able

(25

pin

to

9

pin)

2

1

TxD

-

>

12

I

w

31-

4

1

RTS

-

1

L

7

1

w

Computer

1

RS232:

4800/N/8/1/RTS
BAUD RATE: 4800
PARITY: WITHOUT

DATA-BITS:

STOP-BITS:

:

I

PROTOCOLL: RTSJCTS

9

pin

socket

i,

13

)---

RxD(Received Data)

'

9

I

)'

1

TxD(Transrnitted Data)

7

I

CTS(Clear

to

Send)

18

)----

RTS(Request to Send)

1

Circulator

I

18.2

lnterface parameter

Interface parameters can be se

rt via the circ~

itor as follows:

Select the submenu

CONFIG

in the main menu using the

ENTER key.

Then select 110 and then

COMPUTER.

Then select

PARA

to set the parameters.

The saved parameters will be listed

in

the first

line.

Changes

will be done in the following line.

All these transfer parameters

cannot

be

altered via the

interface.

Maximum baud rate:

Recommendation for the maximum baudrate:

4800 bauds

The communication between the computer and the circula-

tor should not take place at a baud rate higher than 4800.

Occasional transfer failures

ca

occur at a baud rate

of

9600.

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Serial Interface

18.3 Requirements made of external units

Only units which have been tested according to

EN

60950

(=IEC 950) should be connected to the interface of the cir-

culator.

18.4 Setting the desired set value

If the desired set value is set via the computer, this means:

If the interface connection is interrupted, the circulator
controls the temperature to the last set value entered

via the interface.

After the mains .supply current has been switched off

and on, the circulator controls the temperature to the
last value entered via its keyboard and not the value
given by the computer.

18.5 Watchdog function

A watchdog can be initialised via the interface, in order to

generate an acoustic alarm when no trigger command has
been received via the interface within the set timeout period.
The circulator then continues operation with the most

recently manually set (via the menu function) setpoint tem­perature as safety temperature. The most recently received
setpoint from the interface is therewith no longer valid. Thus
the instrument is not switched-off as it would be in the case

of an ordinary disturbance (liquid level,

BATH

overtempera-

ture, etc.). The response delay time of the watchdog can be

changed via the interface. The default setting after switch-on
is 20 seconds.

The watchdog (WD) setting is displayed on the menu path

WD-V24: 0/0020/+000015

I

I

!---current WD remaining response

delay in seconds

1

I---WD response time setpoint in sec.

(0

...

9999 sec)

I---WD status (0 inactive,

1

active)

By reference to the WD remaining response delay time

indication, after the watchdog has responded, it is pos­sible to determine the instant at which communication
failed. This is possible because the residual time is

shown with sign. The value is positive for as long as the

WD has not responded.

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Serial Interface

18.6

Correction

value

If

the desired correction value is set via the computer, this

means:

If

the interface connection

is

interrupted, the circulator

operates to the last correction value entered via the

interface.

After the mains supply current has been switched

off

and on, the circulator operates to the last value entered
via its keyboard and not the value given

by

the com-

puter.

18.7

Controlling a circulator

The interfaces can be controlled

by

the user either via a

BASIC

program or a higher programming language (under

DOS)

or via the Windows-Terminal (under Winwows

3.1

x).

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Serial lnterface

18.7.1

Controlling via a

BASIC

program

The range of commands stored

in

the circulator can be acti-

vated

by

this simple program:

REM

command procedure F and N

REM

1.

enter command

REM

2.

command

is

passed on to the interface

REM

3.

return message will

be

displayed

CLOSE

OPEN

"coml:4800,n,8,l,cs0,dsO,cdO"

AS

#1

loop

:

INPUT "enter command:";B$
IF

B$="x"

THEN goto markend

PRINT#l,B$
rem

PRINT

zz

=

zz

+1

PRINT "command:

";B$;"

+

return message:

";

rem PRINST

"------"

GOSUB

enter

got0 loop

markend

:

END

enter

:

A$=''

y

=

timer

read loop:

while (instr(A$,chr$(lO))

=

0 and timer-y i 12)

A$

=

A$ + input$(loc(l),#l)

wend

read end:

print

a$

;

RETURN

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Serial

interface

18.7.2

Controlling

via

Windows-Terminal

Start the Windows terminal (e.g.

by

double-clicking

the icon "Windows terminal" on the program manager.

Go to the Settings

menu,

either

by

double-clicking on

"Settings" or entering Alt+S.

Phone Number

...

Terminal Emulation

...

Function

Keys

...

Text Transfers

...

Binary Transfers

...

-

Communications ...

-

Modem Commands

...

Printer

Echo

Timer Mode

Show

Eunction

Kevs

-

In the window "Terminal Preferences" the following set-

tings are recommended (see illustration):
Terminal-Modes:

CR

->

CR/LF:

x

Local Echo

x

Inbound

x

Sound

x

Outbound

Courier

Ne

United Kingdom

DenmarklNorwa

@

Show Scroll Bars

Buffer

Cines:

1

00

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Serial Interface

In the window "Communications" do the following set-

tings (see illustration):

Data Bits: 8
Stop Bits: 1

Parity: None
Flow Control: Hardware

Baud Rate: 4800 Baud

-.IT%

\gj

Select the same Baud rate on the PC and on the circu-

lator (see

Parity

@

In the window "Function keys" you can define function
keys for the commands described in 18.8. Below one
of four key levels is shown.

-

None

18.2).

Flow Control-

0

@

1:

XonMoff

. . . . . .

. . . . .

. . . . . . . . . . .

::Hardvrarel

None

Parity Check

Connector

-

Cagier Detect

Key Name: Command:

1

version

pczGq

-1

1

bath external

/I

Itatus software

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I

vlAM

I

-

r

tlAM

I

swAM

I

r

t3-M

w s* -1 0.00*"

I

I

idAM

I

Cancel

Key Level

I::

Keys kssble

:i-l

1

Serial

Interface

18.8

Sets of commands

For the communication there are three different sets of com­mands. Commands of the different sets can be combined at
will.

Standard set of commands

Extended set of commands

Set of commands according to NAMUR.

#

In the following table a blank

is

represented by a

"-

",

for example "R-V1" or

"S--<value>"

0

Every command must be confirmed with

a>.

0

For all three sets of commands there is no differ­ence between upper case and lower case letters.

1.e. there is no difference between entering "start",

"Start",

"START"

or "StArT.

0

in case of the "standard set of commands" be sure
to keep the right number of digits when entering a
value.

0

In case of the "extended set of commands" and the
"set of commands acc. to

NAMUR",

empty places

need not be filled with

"0"

(in contrast with the

"standard set of commands").

(#

Only

with

F8/N8:

The header

"ADR"

followed the unit address must
precede every command in case of subsequent
programming (see

18.2).

E.g.

for RESET ADR07RS<cr>.

Standard set of commands:

If you have already controlled a circulator

DC5

via the

PC

you can use the same set of commands for the circulators of
the F6/N6 and F8/N8 line.

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Serial Interface

Standard Extended

VAMUR

Command
Version

Operating status

call up fault messages (1

8.9)

call up first triggered alarm
call up fuzzy control
call up fuzzy error number

Actual temperature

Call up
actual temperature (internal)
actual temperature (external)

Set temperature

(resolution 0,01 "C)
Call up set temperature
Select set temperature

*)

e.g.:

set temperature= 20i0"~

=>

"S-02000"

set temperature= -1 0,5"C

=>

"S

-1 050";

"-"

replaces 1 st digit

RTA (correction factor c)

(resolution 0,01 "C)
Call up RTA (internal)
Call up RTA (external)
Set RTA (internal)
Set RTA (external)

<ox>

=

{+,-);

operational sign

<value>

=

{0000

...

+/-0255)

=>

0°C

...

+/-2,55"C

"blank" and

"+"

can be used as positive signs,

e.g.: c

=

1,23"C

=>

"c-0123" or "c - +0123"

Temperature limit values

(resolution 0,01 "C)
Call up high limit temperature
Call up low limit temperature

Set

high limit temperature

Set low limit temperature

HL
LL

-

-

"

-

"

=

blank

*)

If a new nominal temperature is preset over the digital interface as long as there is another

value preset over the analog I/O port or the built-in programmer the error

"F136-PG­110-SOLL-ERROR" will be displayed. The program sequence is interrupted and the desired
set temperature is activated whilst the start temperature is being reached or the program is

set to "pause".

R HL

IN-SP

6

R-LL

1

INSPI7

W-

HL <value>*)

-

w-L~-<va/ue>**)

-

*)

at values with decimal places, put in a point e.g.

20.01

(no comma!!!)

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Serial

Interface

i

--

I

/

ENTER

key

The ENTER key can

be

locked if the circulator is controlled via the

PC.

This prevents values

set via the interface from being accidentally altered at the circulator. The key functions

4-

,

+,

,

*

and MENU remain available. Alterations can however no longer be confirmed

Command
Alarm

. . . triggering (main relay missing,
heating and pump off)
Alarm confirming

Unlocking

...

after switching on or fault

with the ENTER key.

NAMUR

OUT-MODE-4-0
OUT-MODE-4-1

Standard

AL

1

ER

L--

W

TSO

W-TS

-

1

-

W SR

W-ER

-

Extended

W-AL

W-EG

OUT-MODE-3 - 0

OUT-MODE

-

3

-

1

OUT MODE 5 0

OUT-MODE-~-I

-

-

-

IN-MODE-5

0:

control OFF

1

:

control ON

START

IN

MODE

2

0:

internal-

1

:

external

OUT MODE 2

0

OUT~MODE-~-~

-

-

Switching to REMOTE operation
and blocking the ENTER key

(Lock)
Switching from REMOTE
operation and releasing the
ENTER key (Unlock)

Unit

ON/OFF
Heating and pump ON
Heating and pump OFF

(since V:1.052)

Control ONIOFF
Call up control ONIOFF

Start control
Stop control

Internal/external control
Call up internallexternal control

Switching to INTERNAL control
Switching to EXTERNAL control

Folgereg onloff

call

up

status
OFF
ON

" - "

=

blank

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Serial Interface

Standard

1

Extended

~utostart

call ur, status

OFF

Uzzy

ID

jentification call up status

OFF

ON

3EEP

only

Programmer

F8/N8)

call up status

OFF

ON

2ooling management

call up status
OFF
ON

Real time clock

'only

F8/N8)

:all up time
:all up date

Select time
Select date

Temperature scale

VV

TEC

VV-TEK

W-TEF

-

Select Celsius
Select Kelvin
Select Fahrenheit

Watchdog

W WD 1

ww

D-0

R-WD-

-

ON
OFF
Call up status WDO: inactive

WD1: active

Specifies the setpoint for watch-

2

dog response time in

sec. raster

Call up setpoint

Cooling

R

CC

w-cc

0

w:ccI1

"

-

"

=

blank

-

call ur, status

OFF
ON

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Serial Interface

1

Standard

I

Standard

I

Extended

I

With the

ments can be defined. For every segment four parameters must be set:

These parameters can be entered separately or in one line.

Extended

After selection of the segment number, the start and end temperature and the
segment time can be entered in any order.

Fault

If

a value is entered that is out of the temperature limit, error message

appears. After that enter a correct value.

extended set of carnmands

Segment number End temperature of the segment
Start temperature of the segment Segment time

-

F123

=

NAMUR

I

/

NAMUR

"RANGE

ERROR"

I

/

Ramp parameters

a temperature program with six ramp seg-

/

Command

"F123

1

-

1

I

Select

I(no.:

W-SS<va/ue>
W-SE<value>

The start and end temperature of the segment (in OC, resolution 0,0I0C) must
be between the high and the low limit temperature of the circulator (see

Before starting a segment first enter

temperature of the segment.

-

-

W-ASxx.

1

Set

I

Set

Set
resolution
maximum 86,400 s

Call up parameters of segment
<no.>

Set

segmentcno.>

Run

Run to start temperature

(segment

Then the circulator runs to the start

segment nummer

1-6)

start temperature
end temperature

segment time

0,01

all parameters

segment

no.:

(in

s;

minimum 0 s,

=

of

1-6)

s,

24

13.6).

hour)

'

-

"

=

blank

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Serial Interface

tandard

Extended

1

NAMUR

1

Command

Fault

F126 = "RAMP ERROR"

f you select a segment for which not all the parameters have been defined, error
message "F126" appears. In this case either select another segment or define the
Darameters.

KRS

I

-

1

Start ramp

If the circulator has reached the start temperature, you can start the ramp with

VV

-

RS.

The command

W

RP "interrupt ramp" is only available while a program is run-

ling, i.e. if the commands

W

AS <no.> "run to start temperature" or W RS "start

.ampen have been entered bef6e.lf this is not the case

"F127"

appears when

~ntering the command

W

-

RP "interrupt ramp".

!

If a ramp segment runs out, the next segment does not start automa­tically.

Stop ramp

Interrupt ramp

N

RB

N-RP

-

To start the next ramp segment, once again enter the following commands:

fou can interrupt the program with W-RP. Then the segment time is hold and the
nomentanous temperature is maintained. The interrupted program can either be
:ontinued with W RS or another segment can be selected with

W

-

SNxx.

Fault

F127

=

"PAUSE ERROR"

-

-

Run to start temperature
(segment no.: 1-6)
Start ramp

Fault

F001

=

"COMMAND UNKNOWN

"

If a command is entered that is not defined in any set of commands, error mes­sage F001 appears. In this case enter one of the commands listed above.

The single ramps can be repeated cyclically:

Call up for information:

R-R I

-

remaining ramp time and

sensor value.

R RZ

I

-

-

W - RZ

-

<PgNo.> - <number>

-

R - XR

1

-

(Read status ramp continuation

Answer

,,

XR-< program no.

>-<

segment no.

>-<

segment remain time

>-

<

setpoint step

>-<

actual ramp setpoint

>-<

segment end temperature

>

,,

I

Call up number of cycles
Set number of cycles

-

" - "

=

blank

64

Read remaining ramp time and
external sensor value.

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Serial lnterface

18.9

Operating

status

1

Error

message

Call up operating status:

Standard set

of

commands:

B<cr> or

Extended set of commands: R-BS<cr>

After entering one of these commands, the following twelve
"state flags" are

shown:

1

:

Alarm external Pt100

0

:

External Pt100 OK

1

:

Alarm internal Pt100

LL

o

:

Internal Ptl 00 OK

-

f

:

Warning liquid level

(only

F8/N8)

0

:

Liquid level OK

1

:

Alarm: Fuzzy control

*

0

:

Fuzzy control OK

1

:

Alarm cooling

*

*

-

0

:

Cooling OK

1

:

Alarm via external connection

0

:

External connection OK

1

:

Alarm motor or pump overloading

0

:

Motor and pump OK

1

:

Alarm liquid level

0

:

Liquid level OK

I

:

Alarm overtemperature

0

:

Temperature OK

1

:

Main relay missing

0

:

Main relay present

1

:

External control

0

:

Internal control

1

:

Temperature control ON

0

:

Temperature control

OFF

*)

With the command

R-FE

the number of the individual

Fuzzy-Error can be read (error list see chapter

15.9)

*

*)

see next page

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Serial Interface

Individual indication of the occurred fault

*

*)

in the cooling management:

Call up operating status of cooling:

Extended set of commands:

I-

0

L

1

:

Alarm via

0

:

no alarm via

R-BK

:

reserved

V24

V24

1

:

Alarm reserve

-

0

:

Reserve OK

1

:

18.10

Alarm Pressostat

-

0

:

Pressostat 2 OK

1

:

Alarm Pressostat

-

0 : Pressostat 1 OK

1

:

Alarm fan

-

0

:

Fan OK

1

:

SK relay missing (Alarm)

0

:

SK relay present

Temperature control ON
Temperature control OFF

Example definition of a ramp program

1

2

by

PC

The comfortable programmer functions integrated in the

and

N8

instruments can also be controlled by

PC

through the

RS232C interface.

F8

Select the

1.

define (max.

W,RN,<program no.

L

Space

Bar

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number for

4

programs possible):

the

>

program

you would like to

Serial

Interface

Then define the

2.
should have and the

Max. 6 segments can be defined for one program.

A program can be repeated up to 90 times

gram cycles):

W,SP,Q),<number

number

of

segments

number of program

of

segment~>~0,<nurnber

the program

of

I

I-

I

...

6

Up to 4 ramp functions can be linked together. In order to do

>

this a value

ramp function

value

can be selected between 1 and 9, according the cycle num­bers between

3.

1

for the cycle number. The number of ramp repetitions

A

segment number will automatically be assigned to

the programmed segments. Now you can enter the

following parameters for each

the
the
the

90 must be entered for the cycle number of the

1.

The following ramp functions must have the

91

and 99.

segment number:

start

temperature of the segment

end

temperature of the segment

run time

of the segment in seconds

(21)

cycles.

(i.e.

90

cycles>

I

1

...

pro-

90

Example:

All other segments can be defined accordingly. Please note
that the temperature program is continual for all defined seg-

ments. This means that the end temperature of segment
must be the start temperature of segment i+l

4.

This will transfer the program from the

PC

The
The interface cable can be unplugged from the circulator.

After switching off the circulator the programs are lost.

segment no.
start
end

run time

W-SP-1-23.0-27.0-600

=

=
=

1

23.0°C

27.0°C
600 sec

.

Start the program by entering the respective program no.

(This START command corresponds to the START of

the ramp via the menu function):

PC

to the circulator.

can now be switched off or be used for other tasks.

i

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Serial Interface

Example of a program:

23

program cycles

1

.)

W-RN-3

2.) V\/-SP-0-6-0-23

3.) W,SP,1,18O.OY1 90.0-300
W-SP-2-1 90.0-1 85.0-600

W,SP,3,185.0,205.0-240
W-SP,4,205.0,185.0-240

W-SP-5-185.0,205.0,240
W-SP-6,205.0,205.0-180

Program no. 3 with 6 segments and

-

-----

set temperature
actual temperatu

o

5

10

(1

)

control parameters are determined. Then the heating is acti­vated to reach the start temperature of segment no.

(5)

below the end temperature, when the program starts seg-

ment no.
long as the momentary set temperature is higher than the
actual temperature at the beginning of the segment the unit
heats until the two temperature curves intersect.

(6)

decrease given in segment no.
without cooling aggregate. Thus the actual temperature

decrease is slower than the set temperature.

0

15 20 25

After starting the program the heating is switched off and

At the end of the segment the actual temperature is still

4.

A negative temperature gradient is available. As

At this point the heating is inactivated. The temperature

The times of segments no. 3 and no. 4 should be

extended so that the circulator can keep the given
values.

30

run time,

4

is too fast for a circulator

min.

1.

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Cooling

19.

Cooling

The refrigerated bath is used mainly for enabling lower than

ambient or tap water temperatures in circulators or for cool-

ing a heated bath down to

a

low

temperature

level

very

quickly.
The working temperature range is shown in the technical

specifications.

0

Safety measures

have

been taken in order to avoid

an excessively high temperature

in

the cooling cir­cuit which would then result in the excess temper­ature protection being triggered and the compres­sor being switched off.

The cooling capacity

is

controlled according to the heat

removal requirements. If the unit works continuously at high

working temeratures, the cooling machine will be switched

off.

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Maintenance

20.

Maintenance

The stainless steel surfaces of the bath vessel and of the

housing may after some time show spots and become tar­nished. Normal stainless steel cleaners as they are used in
the kitchen can be used. The bath vessel and built-in compo­nents should occasionally (at least every time the bath liquid

is changed) be cleaned using a household cleaner.
based cleaners have proved to be suitable used according

to the manufacturers recommendations.

0=f

Do not use scouring powder!

The inside of the bath vessel must be kept clean in order to

ensure a long service life. Substances containing acidic or
alkaline substances and metal shavings should be removed
quickly as they could harm the surfaces causing corrosion.

If corrosion (e.g. small rust marks) should occur in spite of
this, cleaning with stainless steel caustic agents has proved
to be suitable. These substances should be applied accord-

ing to the manufacturers recommendations.

Vinegar-

20.1 Cleaning the fins of the liquefier

In order to maintain the cooling capacity of the unit, cleaning

has to be done two to four times per year, depending on the

grade of soiling.

Switch off the unit and pull out the mains plug.

!

Loosen the ventilation grid on the front: Rotate the

90"

mounting screws
Clean fins with brush or similar tool.

Replace grid and push screws back in (do not rotate

screws).

20.2 Discarding the unit:

One day the life span of your cooling unit will end.
Therefore:

in any direction and remove grid.

The units contain the ozone-friendly coolants

!

R134a, R404A or R23. The units

be

discarded

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by

authorized personnel.

may

however only

Disassembly

21.

Disassembly

of

Temperature Control

Module

and

Bath Vessel

1

Switch off the unit

and

pull out the mains plug.

Loosen the 2 crosshead screws right beside the

00

Oo*

.

pump connections.

Slide the metal jacket to the front (slightly bending
may be necessary) and remove

it.

Unscrew the 4 screws. A hexagon socket

(10

mm) should be

used

if the screws are too tightly
tightened.
In case of difficulty loosen the sealing from the
unit with a screw driver.

Incline the unit slightly whilst lifting it.

!

Lift

the float to avoid any damage.

-

@

Fix the jacket again with the 2 crosshead screws.

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Technical Specifications

22.

Technical Specifications

22.1 Bridge Circulators

Technical specifications acc. to

Working temperature range "C

with tap water cooling
with other coolina

Pump: PressureIFlow rate max.

Suction/Fl.ow rate max. mbarl Ilrnin
Immersion depth from..to mm
Width of the bath bridge from..to

1

Overall dimensions: WxLxH cm

Order no. for 230 V 150..60

for 115 V 160 Hz

DIN 58966

mbarl Ilmin

mm

Hz

22.2 Heating Circulators

"
"

C

C

F6-H51

35..250

20..250

-60..250

300120
21 011 5

90..145

300..800

30x1 5x33

404-051 1 406-051 1
404-051 2

N6-H51

45..300

20..300

-60..300

540131
420120

100..195

300..800

30x1 5x39

Technical specifications acc. to

Working temperature range "C

with tap water cooling "C
with other cooling "C

Temperature accuracy

Heater capacity 230 V 1 11 5
Pump: PressureIFlow rate max.

SuctionlFlow rate max. mbarl l/min

Bath opening: WxLxD cm

Bath volume I

Overall dimensions: WxLxH cm

Net weight kg

I

Total wattage 230 V 1 11 5
Order no. for 230 V I 50..60 Hz

I

for 115 V!6O Hz

V

DIN 58966

iK

V

mbarl llmin

VA

(

W

200011000

14x1 5x1 5

21x36~37

1

210011100

F6-B5

38..250

20..250

-60..250

0.01

300120
21 011 5

4.5

11.0

N6-B7

45..300

20..300

-60..300

0.01

I

30001­540131

420120

13x1 0x20

7

23x36~46

16.0

1

31001-

N6-B12

45..300

20..300

-60..300

0.01

I

30001­540131

420120

22x1 4x20

12

32x38~46

17.5

1

31001-

1

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Technical Specifications

22.3

Refrigerated

Circulators

- -

I

I

Temperature accuracy

t_K

1

0.01

I

0.01

F6-C35

-35..200

Technical specifications acc.

to

DIN

58966

Workina temDerature ranae

"C

F6-C25

-28..150

2000

1000

I

Cooling capacity at

20°C

W

at

0°C W

at

-20°C

W

Heater capacity

230

V

W

115

V

W

Pump:

Pressure/Flow rate
max. mbarl

Ilmin
SuctionlFlow rate
max. rnbar/ Vmin

2000

1000

300
200

70

Bath

opening:

BxLxT

cm

Bath

volume

1

Overall dimensions:

WxLxH

cm

Net weight

kg

Total wattage

230

V

VA

115

V VA

Order no. for

230

V

I

50..60

Hz

for

115 V 160

HZ

400
300

150

300120

21

011 5

300120

21

011

5

13x1

0x1

5

4.5

23x46~60

32.0

2450

1450

41

4-0251

41 4-0252

22x1 4x1 5

8

38x46~68

39.0

2500

1500

41 4-0351
41 4-0352

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Technical Specifications

22.4

Fuse values

Unit type

F6/2KW
F6/2 KW/Cool

F6/1 KWICool
F6/1 KW
F6/1 KWICool

N613KW
N612KWICool

Mains voltage

230V

230V
230V

115V
115V

230V

230V

Fuse(s)at the

rear

panel

2x1 0 A

1x13 A

2x1 5 A

Fuse(s)

in the unit

1 xT125 mA/1 xT200 mA
1 xT125 mA/1 xT200 mA

1 xT125 mA/1 xT200 mA
1 xT200 mN1 xT200 mA
1 xT200 mA/l xT200 mA
1

xT125 mA/1 xT200 mA

1 xT125 mA/l xT200 mA

Subject to alterations

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Printed in Germany (FRG)

74

Part

no.

1

.1

.044.2-09.2000

002-3575

F

Appendix

23.

Optional

I/O

board

(order no. 333-0531)

23.1

Installation

of

I10

Board

!

The

installation may only

be

done

by

trained per-

sonnel.

a

Disconnect instrument from mains

(unplug mains plug)

-

--%

3330531

@

Unscrew the cover caps of the sockets at the rear
instrument panel.

r

-A&-

-

@

Remove screws at the rear panel

(4

screws).

@-

Remove rear panel.
Bend the hood slightly apart and slide off to the back.

@

Separate the socket of the It0 board at the rated break
point. Insert

I10

board as shown in

Fig.

1

.

(Insert PCB up to the stop of the pin strip)
Fasten socket on housing with a nut (watch torsion
protection).

Slide hood back on.

Fig.

1

Check grounding connections.

@

Screw the rear panel back on.

MAIN

MENU

!

For connection with the voltage

or

mains supply a

shielded cable has to be used.

Should you notice any jumps of the set temperature values
on the display the shielding is insufficient. Please shield as
described in the manual (chapter

17.5).

If

the problem per­sists (e.g. in case of a longer cable) the cable should perhaps
be embedded in a tube.

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Appendix

View from

soldering side

23.2 Pin assignment

23.2.1 Signal input

For signal input the socket has the following pin assign­ment:

4

=

reference input + (set value),

6

=

reference input - (set value).

Working resistance for current input:

<

150

Q,

Input impedance for voltage input: > 50 kSZ.

23.2.2 Signal output

For signal output the socket has the following pin
assignment:

2

=

measuring value + (actual value),

3

=

measuring value - (actual value).

Working resistance for current input:

<

500 R,

Output impedance for voltage input:

>

10

kR.

For the operation of the circulator with an analog low voltage
normal signal via the I10 port you can choose between

1)

voltage input,

2) voltage output,

3) current input and

4)

current output.

1.e. with this interface you can
define set values (voltage and current input) and simul-

taneously

show actual values (voltage and current output)

of an external device.

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Appendix

MAIN MENU

23.45

"C

CONFIG

23.45

OC

SETUP-

1

STATUS SETUP-2

j

COMPUTER

II\NIVOGI/

-1

U-OUTPUT

I

23m45

OC

i

I-INPUT I-OUTPUT

23.45

OC

-1

START

STOP OFFSET

channel

23.3

Configuration

To configure the I/O port, select

1-0

in the CONFIG menu and

confirm with ENTER.

If an

110 board is built in, you can choose either COMPUTER

or ANALOG in the

1-0

menu. Select ANALOG and confirm

with ENTER.

Here four possibilities are available for selection:
U-I NPUT, U-OUTPUT,

I-INPUT and I-OUTPUT.

(U

=

voltage,

I

=

current)

23.3.1

Configuration

of

voltage input

If you want to give a set value with an analog voltage

signal

by

means of an external device, select U-INPUT

(voltage input) in the ANALOG menu and then SELEC-

TION in the INPUT menu to set the values for the volt-

age input.
When the SELECTION menu appears three different

combinations of values (channels

0 to

2)

can be set: the

modes normal resolution (-1 00

...

400°C) and high res-

olution (0

...

100°C) with the voltage range 0...10 V and

the standardised Thermo Haake interface

-1

...

3

V

(1 0

mV/"C; 0,O

V

=

O,O°C):

a) 0...10

V

=

O...lOO°C (channel

0)

b)

-1

...

3

V

=

10 mV/OC (-1 00

...

300°C) (channel 1)

c) 0...10

V

=

-10O...40O0C (channel

2)

!

If an older Thermo Haake circulator that was oper-

ated

with

analog temperature input

is

replaced

simply

select

-1

...

3

V

and

10

mV/"C.

Doing so the

former parameters are set automatically.

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Appendix

In the other case select 0...10 V and the temperature
range O...lOO°C or

-1

00

...

400°C in the

U-INPUT.

On the display the following is shown (from top to bot­tom):

Upper line U-INPUT the momentarily saved mode

(e.g. U-INPUT-I

:

-1

...

3V) with the channel (e.g. 1) and

the voltage range (e.g. -1

...

3V);

Lower line U-INPUT the momentarily marked mode

(e.g. U-INPUT-O:*O

...

IOV) with the channel (e.g. 0) and

the voltage range (e.g. O...IOV);

Below: the available modes (e.g. 0...1 OO°C, 10 mVI0C,

-1 00

...

400°C).

With the arrow keys you can select a mode. The

respective voltage range and channel are shown in the
lower line U-INPUT.

If

you confirm this selection (i.e.
this channel) with ENTER, the information is taken over
to the upper line U-INPUT.

I

!

1-0 STARTED

!

I

Press the menu key to get to the INPUT menu. Here

with START you can activate the defined voltage val-

ues. From now on the circulator will receive its set val­ues via the pre-set voltage values.

For a short time in the display appears

"!

1-0

STARTED!"

together with the set values (e.g.

O...

1

OV

-+

0

...

100°C).

(

CONFII-OIANAIINISELECT

1

U-INPUT-I: -1 ..3V

!

1-0 STARTED

!

piiZZ-1

10 rnVI"C

!

If a channel is momentarily active, it is not possible

to save a new setting: while you press the ENTER

key,

"!

1-0

STARTED

!"

is shown on the display.

To save a new setting first stop the operation of the

110 plug with STOP in the INPUT or OUTPUT menu.

I

CONFII-OIANALOG

1

I-INPUT I-OUTPUT

23.3.2

Configuration of current input

If

you want to give a set value with an alalog current by
means of an external device, select I-INPUT (current
input) in the ANALOG menu and then SELECTION in
the INPUT menu to set the values for the current input.

When the SELECT menu appears two different modes

can be chosen: normal resolution (-1 00

...

400°C) and

high resolution (0

...

100°C). So with the current ranges

0...20 mA or 4...20 mA four combinations (channels 4
to

7)

are available:

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Appendix

CONFII-OIANAIINISELECT

CONFII-OIANALOGIINPUT.

I

!

1-0 STARTED

!

u

[I

-1

JJ

external device

MAIN MENU 81.40"C

23.45

OC

1,

,

T-SELECT

]

CONFIG CONTROL

CONFII-OIANALOGIINPUT

I

STOP

(-1

]

a) 0'

...

20mA=

-1

00.. .40O0C (channel 4)

b) 0...20 mA

=

O...

100°C (channel

5)

c) 4...20mA=

-1

00.. .4OO0C (channel

6)

d) 4...20mA=

O...lOO°C (channel

7)

Select the temperature range with the arrow keys and

cnoose 4...20mA or 0...20mA in the lower line I-INPUT.

Press the menu key to get back to the

INPUT

menu.

Here with START you can activate the selected values

to start the input via the I/O port. From now on the circu-

lator will receive its set values via the pre-set current.

For a short time

"!

1-0

STARTED !"is shown on the display

with the selected values (e.g.: 0...20

mA,

-1

00

...

400°C).

!

"!

1-0

STARTED

!"

is shown on the display also if

you

try to start the programmer (only

F8

and

N8)

while

the

I10 plug is active.

To start the programmer first stop the operation of

the

I10

plug

with

STOP

in

the

INPUT

or

OUTPUT

menu.

23.3.3

Adjusting the input values

If you give a set value by means of an external device
via the I/O plug, there can be a difference between the
set temperature shown on the display of the circulator
and the set value on the external device.

This difference depends on tolerances in the

110 board

and the external device.
By setting an offset value, the value (i.e. a voltage or

a

current, respectively) shown on the external device can
be adjusted to the temperature shown on the display of
the circulator.

E.g.: voltage input and the normal resolution mode
(0

...

10 V =

O...lOO°C; channel

1)

is selected. On the

external device 8.0 V is set to give a set temperature

of 80°C.
Due to some tolerance, the set temperature on the dis-

play of the circulator is not

80.00°C but

81

.40°C. (The

set temperature is always in the upper right corner of

the display.)

This difference can be adjusted with an offset of

-1

.40°C.

To set the offset get back to the NWT menu with the

MENU

key

and

there select

OFFSET.

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Appendix

CONFII-OIANNINIOFF.

23.45

OC

-<-

pFq

(

CONFII-OQNNOFFISELECT

1

In the OFFSET menu you can set the offset value (i.e.

the difference between the two temperatures) with the

arrow keys

t

and

+.

After this, the value on the external device and the set
temperature on the display of the circulator are

adjusted.
Confirm with ENTER to save the offset value.

On the display the voltage or current range of the
selected mode is shown

(e.g. 0...1 OV, O/lOO°C). For

each channei an offset value can be saved.

23.3.4 Configuration of voltage output

If you want to monitor an actual value (i.e. an actual
temperature) with an alalog voltage signal

by

means of

an external device, select U-OUTPUT (voltage output)

in the ANALOG menu and then SELECTION in the
OUTPUT menu to set the values for the voltage output.

The configuration of U-OUTPUT is similar to the one of

U-INPUT. You can choose between the same modes:

a)

0...10 V

=

O...lOO°C (channel 0)

b)

-1

... 3 V =10 mV/OC (-100

...

300°C)

(channel 1)

c) 0...10 V =-1 00

...

400°C (channel 2)

The display shows OUTPUT in stead of INPUT.

23.3.5 Configuration of current output

If

you want to monitor an actual value (i.e. an actual
temperature) with an alalog current signal by means of
an external device, select I-OUTPUT (current output)

in the ANALOG menu and then SELECTION

in the

OUTPUT menu to set the values for the current output.

The configuration of I-OUTPUT is similar to the one of

I-INPUT. You can choose between the same combina-

tions of output current ranges and temperature ranges

(channels 4 to

7):

a) 0...20 mA = -1 00.-..400°C (channel 4)

b)

0...20 mA

=

O...lOO°C (channel

5)

c) 4...20 mA = -1 00

...

400°C (channel

6)

d)

4...20 mA

=

O...lOO°C (channel

7)

The display shows OUTPUT

in

stead

of

INPUT.

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Appendix

23.3.6

Adjusting

the output values

Similar to the input of set values, when monitoring an
actual value by means of an external device via the I10

plug, there can be a difference between the actual tem­perature shown on the display of the circulator and the
actual value of the external device.

This difference depends on tolerances in the I10 board

and the external device.
By setting an offset value, the value (i.e. a voltage or a

current, respectively) on the external device can be
adjusted to the temperature shown on the display of the
circulator.

E.9.:

current output with 0...20

mA

=

O...lOO°C (chan-

nel

5)

is selected. On the external device 8.0 V is set to

give a set temperature of 80°C. On the display of the

circulator the actual temperature 80.00°C is shown.

(The actual temperature is always in the centre

of

the

display.)

[JJ

external

device

Due to some tolerance, the actual temperature on
external device is not 80.00°C but 81 .40°C.

1

80.00

"C

1

Off.

O..PO

mA

(011

00°C)

This difference can be adjusted with an offset of

-1

.40°C.

To set the offset get back to the

OUTPUT

menu with the

MENU

key and there select OFFSET.

In the

OFFSET

menu you can set the offset value (i.e.

the difference between the two temperatures) with the

arrow

keys

c-

and

+.

After this, the value on the external device and the set

temperature on the display

of

the circulator are

adjusted.
Confirm with

ENTER

to save the offset value.

On the display the voltage or current range of the
selected mode is shown (e.g. 0...20

mA,

0/10O0C). For

each channel an offset value can

be

saved.

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CONFII-OIANALOGIINPUT

Appendix

23.4 Simultaneous operation of input and output

Via the 110 plug you can either

give set values (voltage or current input),

monitor actual values (voltage or current output) or
simultaneously give set values and monitor actual

values. In this case, input and output channels can be
combined at will (e.g. channel 0 for input and channel

7

for output).

23.45

INPUT DEACTIVATED

/

CONFII-OIANALOGIOUTPUT

23.45

OUTPUT DEACTIVATED

OC

OC

20.00"C

23.5 Stopping the input via the I10 plug

!

1

!

To stop the operation of the analog 110 plug, select STOP in
the INPUT or OUTPUT menu, respectively, and confirm with

ENTER. The message "INPUT DEACTIVATED

!"

PUT DEACTIVATED

is shown.

!"

or "OUT-

23.6 Starting by means of the timer (only F8 and N8)

The operation of the unit with the I10 plug can be started by

F8

means of the timer that is built into circulators of the

N8 line.

To do so the timer has to be set first. Before reaching the start
time of the timer the parameters of the I10 plug can be set.

At the start time of the timer, the unit is started as are the input
or output of data via the I10 plug.

and

23.7 Fault display F01

ALARM

+

T-TSET <5.OC:F01

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If the circulator switches off this can cause a heavily dis-

turbed voltage or current signal. Please ensure that the devi-

ation of voltage or current is smaller than the equivalent of

0,1

"C.

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