Haake Cryostat DC5-K75 User manual

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Instruction Manual
Cryostat DC5-K75
Part No. 002-8851
1-1-041-2 11.1996
Gebr. HAAKE GmbH HAAKE (USA) Rheo s.a. (France)
Dieselstraße 4 53 W. Century Road 99 Route de Versailles
D-76227 Karlsruhe Paramus, NJ 07652 91160 Champlan
Tel.[phone]HAAKE
oder+49(0)721 4094-444 Tel.[phone] Tel.[phone]
Fax [phone] Fax [phone] Fax [phone]
E-mail:[email protected] http://www.haake-usa.com http://www.rheo.fr
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Table of Contents
1. Key to Symbols 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Symbols used in this manual 3. . . . . . . . . . . . . . . . . .
1.2 Symbols used on the unit 3. . . . . . . . . . . . . . . . . . . . .
2. Quality Assurance 4. . . . . . . . . . . . . . . . . . . . . . . . . .
3. Your Contacts at HAAKE 4. . . . . . . . . . . . . . . . . . . .
4. Safety Notes 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Unit Description 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Safety features 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Safety class 2 according to DIN 12879 8. . . . . . . . . .
5.3 Applications 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Unpacking / Setting Up 9. . . . . . . . . . . . . . . . . . . . . .
6.1 Transportation damage? 9. . . . . . . . . . . . . . . . . . . . . .
6.2 Information conceming the CE sign 9. . . . . . . . . . . . .
6.3 Ambient conditions according to DIN 61010 10. . . . .
6.4 Resting time after transportation 10. . . . . . . . . . . . . . .
6.5 Ventilation 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Functional and Operating Elements 11. . . . . . . . . .
7.1 Front 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Rear 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Assembly
(if necessary after servicing) 13. . . . . . . . . . . . . . . . .
9. Connecting Hoses 14. . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Plastic hoses 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2 HAAKE metal hoses 15. . . . . . . . . . . . . . . . . . . . . . . . . .
9.3 Pressure pump 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.1 Temperature controlling an object in the
internal bath 16. . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.2 Connection of external closed systems 16. . . .
10. Filling with Bath Liquid 17. . . . . . . . . . . . . . . . . . . . . .
10.1 Recommended bath liquids 17. . . . . . . . . . . . . . . . . . . .
10.2 Filling with heat transfer liquid 19. . . . . . . . . . . . . . . . .
11. Draining 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12. Connecting Up 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.1 Connecting to the mains 21. . . . . . . . . . . . . . . . . . . . . .
12.2 Checking the liquid circuit 21. . . . . . . . . . . . . . . . . . . . .
12.3 Changing the mains plug 21. . . . . . . . . . . . . . . . . . . . . .
12.4 Fuses on the unit 22. . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents
13. Operating 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.1 Switching on 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.2 Starting up again after a power failure 23. . . . . . . . . .
13.3 Displaying the software version 24. . . . . . . . . . . . . . . .
13.4 Setting the set temperature 24. . . . . . . . . . . . . . . . . . . .
13.5 Heating control lamp 25. . . . . . . . . . . . . . . . . . . . . . . . .
13.6 Displaying the actual temperature 25. . . . . . . . . . . . . .
13.7 Temperature limitation 27. . . . . . . . . . . . . . . . . . . . . . . .
13.7.1Subsequently altering the temperature
limitation 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.8 Cooling 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.9 RS232C Interface 28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
13.10The display cannot be altered 28. . . . . . . . . . . . . . . . .
14. Excess Temperature Protection 29. . . . . . . . . . . . . .
14.1 Excess temperature protection dial 29. . . . . . . . . . . . .
14.1.1Setting the excess temperature 30. . . . . . . . . .
14.1.2Testing the cut-off point 30. . . . . . . . . . . . . . . . .
15. Fault Displays 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.1 Excess temperature 31. . . . . . . . . . . . . . . . . . . . . . . . . .
15.2 Low liquid level 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.3 Pump or motor overloading 31. . . . . . . . . . . . . . . . . . . .
15.4 Sensor breakage or short circuit 32. . . . . . . . . . . . . . .
15.5 Undefined fault 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.6 Range exceeded 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.7 Parity fault 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.8 External fault 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15.9 Fault eliminated? 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16. Testing the Safety Features 33. . . . . . . . . . . . . . . . . .
16.1 Excess temperature protection 33. . . . . . . . . . . . . . . . .
16.2 Low liquid level protection 33. . . . . . . . . . . . . . . . . . . . .
17. RS232C Interface for DC5 34. . . . . . . . . . . . . . . . . . . .
17.1 Connecting the DC5 to a computer 34. . . . . . . . . . . . .
17.2 Interface parameters 35. . . . . . . . . . . . . . . . . . . . . . . . .
17.3 Requirements made of external units 36. . . . . . . . . . .
17.4 Setting the desired set value 36. . . . . . . . . . . . . . . . .
17.5 Correction value 36. . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.6 Commands for DC5 circulators 37. . . . . . . . . . . . . . . .
17.7 DC5 keys 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.8 Operating status 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.9 Example of a BASIC program 39. . . . . . . . . . . . . . . . . .
18. Maintenance 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18.1 Cleaning the fins of the liquefier 40. . . . . . . . . . . . . . . .
18.2 Discarding the unit 40. . . . . . . . . . . . . . . . . . . . . . . . . . .
19. Technical Specifications 41. . . . . . . . . . . . . . . . . . . . .
19.1 Fuse values 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Key to Symbols
3
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.
1Indicates the next operating step to be carried out
and…
⇒…what happens as a result thereof.
1.2 Symbols used on the unit
Caution: Read the instruction manual!
Adjustment possibility for setting the cut-off point for
excess temperature protection
Menu selection
Value alteration (↑) higher / (↓) lower
Enter key
Reset button (for usage after a fault or interruption)
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Quality Assurance / Your Contacts at HAAKE
4
2. Quality Assurance
Dear customer,
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 custom-
ers 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 pro-
cess 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 manufactur-
ing.
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 HAAKE
Please get in contact with us or the authorized agent who
supplied you with the unit if you have any further questions.
Gebrüder HAAKE GmbH,
Dieselstrasse 4,
D-76227 Karlsruhe
GERMANY
Tel. [phone]HAAKE
or [phone]
Fax [phone]
E-mail [email protected]
The following specifications should be given when product
enquiries are made:
– Unit name printed on the front of the unit,
– TYP as specified on the name plate.
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Safety Notes
5
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 educa-
tion 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 car-
ried out by specialist personnel. Considerable damage
can be caused by improper repairs. The 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 suffi-
cient.
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 pur-
poses and/or in the vicinity of patients.
Many unit parts can become warm as a result of normal
unit functioning! Please ensure that adequate 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
HAAKE. Please refer to the respective EC – Safety Data
Sheet.
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Safety Notes
6
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
•hazardous to health
•environmentally unsafe
i.e.: dangerous
You alone are responsible for the handling of these sub-
stances!
Our advice:
•If in doubt, consult a safety specialist.
•Read the product manufacturer’s or supplier’s
“
EC – SAFETY DATA SHEET ”
•Read relevant regulations concerning dangerous
materials
•Observe relevant guidelines for laboratories in your
country
The following measures were taken for the protection of
the operator:
•Protection Class I according to VDE 0106 T1
i.e. protection against electric shocks by grounding all
parts which carry the risk of electric contact.
The device must only be connected to mains recep-
tacles with a protective ground.
•Protection IP 20 according to EN 60529
i. e. regarding the protection against accidently touch-
ing live parts and damage by foreign matter, it has been
ensured that foreign bodies with a thickness or diame-
ter of more than 12 mm cannot penetrate.
No special precautions were taken against the pe-
netration of water and dust. The device should there-
fore not be used in a dusty atmosphere or in the neigh-
borhood of spray water.
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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Unit Description
7
5. Unit Description
This unit fulfills the requirements of safety class 2 according
to DIN 12879 and is thus suitable for unsupervised continu-
ous operation.
The circulator pump motor is protected against thermal over-
loading.
5.1 Safety features
The comprehensive safety system is designed on the princi-
ple of the concept of the “single fault” (EN 61010). This as-
sumes 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,
•do not correctly set the excess temperature protection,
i.e. your 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
8
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 feature is triggered…
•the Fault Identification System (FIS) and an acoustic
signal indicate the fault,
•the safety-relevant components of the heating unit
(heating element and motor) are switched off immedi-
ately i.e. the safety circuit transfers the unit to a stable,
safe condition,
•the heat transfer liquid in the heating unit gradually ad-
justs to ambient temperature, but…
For units with switched on compressor
cooling, this cooling remains functional
and thus cools the heat transfer liquid to the
lowest reachable temperature.
5.3 Applications
The circulator is intended for…
•temperature controlling samples within the circulator’s
own bath or for…
•temperature controlling closed temperature control cir-
cuits such reactors, heat exchangers or similar objects.
Open vessels cannot be temperature controlled as these cir-
culators are only equipped with a pressure pump.
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