Haake DC3 Manual - Marshall Scientific

Instruction Manual
Circulator HAAKE
C1, DC1, DC3, DL3, DC5
including all Baths
Analyze Detect Measure Control TM
Table of Contents
1.
Key to Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
1.2
Symbols used in this manual . . . . . . . . . . . . . . . . . . 4
Symbols used on the unit . . . . . . . . . . . . . . . . . . . . . 4
2.
Quality Assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.
Your Contacts at HAAKE . . . . . . . . . . . . . . . . . . . . . . . 5
4.
Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1
5.2
5.3
5.4
5.5
6.
6.5
Transportation damage? . . . . . . . . . . . . . . . . . . . . . .
Information concerning the CE sign . . . . . . . . . . . .
Ambient conditions according to DIN EN 61010 .
Resting time after transportation
(only for refrigerated circulators) . . . . . . . . . . . . . . .
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
11
12
12
12
Functional and Operating Elements . . . . . . . . . . . . 13
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8.
8
9
10
10
10
Unpacking / Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1
6.2
6.3
6.4
7.
Safety features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety classes according to DIN 12879 . . . . . . . . .
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature ranges . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature control module C1 . . . . . . . . . . . . . . . .
Temperature control module DC1 . . . . . . . . . . . . . .
Temperature control modules DC3 and DC5 . . . . .
Bath vessel “W” (example model) and “B3” . . . . . .
Bath vessel “V” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bath vessel K15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bath vessel K20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
14
15
16
17
18
19
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1
8.2
8.3
8.4
8.5
8.6
8.7
Immersion circulators with bracket mounting . . . . .
Open-bath circulators with angled mountings . . . .
Open-bath circulators with bath bridge and
stainless steel or polyacrylic baths . . . . . . . . . . . . . .
Open-bath and heating circulators with bath
bridge H33 and polyacrylic bath . . . . . . . . . . . . . . . .
Heating circulators with bath vessel B3
Refrigerated circulators with
cooling bath K15 or K20 . . . . . . . . . . . . . . . . . . . . . .
Subsequently fitting a cooling coil . . . . . . . . . . . . . .
Fitting a lifting platform to the bridge . . . . . . . . . . . .
8.7.1 Lifting platforms 333-0217 and 333-0227 . . .
1
23
24
25
26
27
28
29
29
Table of Contents
9.
Connecting Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1
9.2
9.3
9.4
9.5
Plastic hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HAAKE metal hoses . . . . . . . . . . . . . . . . . . . . . . . . . .
Tap water cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3.1 Connection to cooling water . . . . . . . . . . . . . .
External Cooling Devices . . . . . . . . . . . . . . . . . . . . .
Pressure pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.5.1 Temperature controlling an object in the
internal bath . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.5.2 Connection of external closed systems . . . .
30
31
32
32
32
33
33
33
10. Filling with Bath Liquid . . . . . . . . . . . . . . . . . . . . . . . . . 34
10.1 Recommended bath liquids . . . . . . . . . . . . . . . . . . . . 34
10.2 Filling with heat transfer liquid . . . . . . . . . . . . . . . . . 36
11. Draining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
12. Connecting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.1 Connecting to the mains . . . . . . . . . . . . . . . . . . . . . .
12.1.1 Only for refrigerated baths K15, K20 and V .
12.2 Checking the liquid circuit . . . . . . . . . . . . . . . . . . . . .
12.3 Changing the mains plug . . . . . . . . . . . . . . . . . . . . . .
12.4 Fuses on the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38
38
38
38
39
13. Operating the C1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
13.1
13.2
13.3
13.4
13.5
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the desired temperature . . . . . . . . . . . . . . . .
Heating control lamp . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying the actual temperature . . . . . . . . . . . . . .
Excess temperature protection . . . . . . . . . . . . . . . . .
40
40
40
40
40
14. Operating the DC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
14.1
14.2
14.3
14.4
14.5
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the desired temperature . . . . . . . . . . . . . . . .
Heating control lamp . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying the actual temperature . . . . . . . . . . . . . .
Excess temperature protection . . . . . . . . . . . . . . . . .
41
41
42
42
43
15. Operating the DC3, DL3 and DC5 . . . . . . . . . . . . . . . 44
15.1
15.2
15.3
15.4
15.5
15.6
15.7
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting up again after a power failure . . . . . . . . . .
Displaying the software version . . . . . . . . . . . . . . . .
Setting the set temperature . . . . . . . . . . . . . . . . . . . .
Heating control lamp . . . . . . . . . . . . . . . . . . . . . . . . .
Displaying the actual temperature . . . . . . . . . . . . . .
Temperature limitation . . . . . . . . . . . . . . . . . . . . . . . .
2
44
44
45
45
46
46
48
Table of Contents
15.7.1 Subsequently altering the temperature
limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
15.8 RS232C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
15.9 The display cannot be altered . . . . . . . . . . . . . . . . . 49
16. Excess Temperature Protection . . . . . . . . . . . . . . . . 50
16.1 Excess temperature protection dial . . . . . . . . . . . . . 50
16.1.1 Setting the excess temperature . . . . . . . . . . 51
16.1.2 Testing the cut-off point . . . . . . . . . . . . . . . . . 51
17. Fault Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
17.1 C1 and DC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.1.1 Excess temperature or low liquid level . . . .
17.1.2 Motor or pump overloading . . . . . . . . . . . . . .
17.2 DC3, DL3 and DC5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.2.1 Excess temperature . . . . . . . . . . . . . . . . . . . .
17.2.2 Low liquid level . . . . . . . . . . . . . . . . . . . . . . . .
17.2.3 Pump or motor overloading . . . . . . . . . . . . .
17.2.4 Sensor breakage or short circuit . . . . . . . . .
17.2.5 Undefined fault . . . . . . . . . . . . . . . . . . . . . . . .
17.2.6 Range exceeded . . . . . . . . . . . . . . . . . . . . . .
17.2.7 Parity fault . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17.2.8 External fault . . . . . . . . . . . . . . . . . . . . . . . . . .
17.2.9 Fault eliminated? . . . . . . . . . . . . . . . . . . . . . .
52
52
52
53
53
53
53
54
54
54
54
54
54
18. Testing the Safety Features . . . . . . . . . . . . . . . . . . . . 55
18.1 Excess temperature protection . . . . . . . . . . . . . . . . . 55
18.2 Low liquid level protection
(for the DC3, DL3 and DC5) . . . . . . . . . . . . . . . . . . . 55
19. RS232C Interface for DC5 . . . . . . . . . . . . . . . . . . . . . . 56
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
Connecting the DC5 to a computer . . . . . . . . . . . . .
Interface parameters . . . . . . . . . . . . . . . . . . . . . . . . .
Requirements made of external units . . . . . . . . . . .
Setting the desired set value . . . . . . . . . . . . . . . . .
Correction value . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commands for DC5 circulators . . . . . . . . . . . . . . . .
DC5 keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating status . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Example of a BASIC program . . . . . . . . . . . . . . . . . .
56
57
58
58
58
59
60
60
61
20. Cooling (only for K15, K20 or V) . . . . . . . . . . . . . . . . 62
21. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
21.1 Cleaning the fins of the liquefier . . . . . . . . . . . . . . . . 63
21.2 Discarding the unit: . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
22. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 64
22.1 Dimensions, material and the permissible
temperature ranges of the baths . . . . . . . . . . . . . . .
22.2 Technical specifications of the refrigerated baths .
22.3 Technical specifications of the temperature
control modules acc. to DIN 58966 . . . . . . . . . . . . .
22.4 Fuse values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
64
64
65
66
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.
1
Indicates 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!
Heating display light
on = the unit is heating; off = the unit is not heating
Temperature fine adjustment
Fault display light
on = the unit has a fault; off = the unit works properly
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)
4
Quality Assurance / Your Contacts at HAAKE
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 developed, 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 specifications as well as to monitor correct functioning and to confirm 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 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.
+49 (0)18050HAAKE
or
+49 (0)721 4094-444
Fax
+49 (0)721 4094-418
E-mail haake_helpdesk@bigfoot.com
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.
5
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 guaranteed 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 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.
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 temperature exceeds approx. 150°C. 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 heat transfer liquids recommended by HAAKE.
Please refer to the respective EC Safety Data Sheet.
6
Safety Notes
!
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 dangerous:
• inflammable, easily ignited or explosive
• hazardous to health
• environmentally unsafe
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 91/155/EEC.
• 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 receptacles with a protective ground.
• Protection IP 20 according to EN 60529
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.
No special precautions were taken against the penetration of water and dust. The device should therefore not be used in a dusty atmosphere or in the neighborhood 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 by specialist personnel is
about to be carried out
Complete separation means:
!
Pull out the mains plug!
7
Unit Description
5.
Unit Description
All units fulfill the requirements of safety classes 1W or 2 according to DIN 12879 and are thus suitable for unsupervised
continuous operation.
The circulator pump motor is protected against thermal overloading.
5.1 Safety features
The comprehensive safety system is designed on the principle of the concept of the “single fault” (EN 61010). 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,
• 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,
destruction of
polyacrylic bath vessel
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
8
Unit Description
5.2 Safety classes according to DIN 12879
Safety class 1W:
The unit can only be used with non-flammable liquids
such as water or water + antifreeze.
The safety element measures the surface temperature
of the heating element. If this exceeds a certain temperature (due to e.g. a leakage in the liquid circuit or a
liquid shortage), the safety element is triggered.
The HAAKE C1 and DC1 circulators exceed this standard and also offer the possibility of setting this cut-off
temperature variably.
Safety class 2:
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.
These safety features are incorporated within the
HAAKE circulators DC3, DL3 and DC5.
If a safety feature is triggered…
•
fault display lights (for the C1 and DC1) or the Fault
Identification System (FIS) and an acoustic signal (for
the DC3, DL3 and DC5) indicate the fault,
•
the safety-relevant components of the heating unit
(heating element and motor) are switched off immediately i.e. the safety circuit transfers the unit to a stable,
safe condition,
•
the heat transfer liquid in the heating unit gradually adjusts 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.
9
Unit Description
5.3 Applications
Open-bath circulators:
For temperature controlling samples within the circulator’s own bath.
Heating and refrigerated circulators:
For temperature controlling closed temperature control
circuits such reactors, heat exchangers or similar objects.
Separate open vessels cannot be temperature controlled as these circulators are only equipped with a
pressure 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 surfaces heat up. Protective measures must be taken!
Mains cable:
!
The mains cables used for the temperature control
modules DC3, DL3 and DC5 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 ensure that the same sort of cable is used in case of
replacement!
(HAAKE order no. 082-2409)
5.5 Unit combinations
A complete, ready-to-use circulator always consists of a
temperature control module (C1, DC1, DC3, DL3 or DC5),
a bath vessel (B3, K15, K20, W13, etc.) and a connecting
element which attaches the temperature control module to
or on the bath.
10
Unpacking / Setting Up
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 Information concerning the CE sign
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 / ISO 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:
for
according to
EN 50081 EN 55011 class B (interference voltage)
EN 55011 class B (interference radiation)
EN 50082 EN 61000-4-2 (discharging static electricity)
ENV 50140 (electromagnetic HF field,
(amplitude modulated)
EN 61000-4-4 (quick transient interference
(variable)
ENV 50141 (high-frequency asymmetrical,
(amplitude modulated)
EN 61000-4-8 (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 standards are EN61010-1 and EN61010-2-010.
11
Unpacking / Setting Up
6.3 Ambient conditions according to DIN EN 61010
•
•
•
•
indoors, max. 2000 meters above sea level,
ambient temperature 5 ... 40° C,
relative humidity max. 80%/31°C (→ 50%/40°C)
excess voltage category II, contamination level 2
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 24 hours after setting up.
HAAKE K20
6.5 Ventilation
Keep all ventilation grids 26 free from obstruction to ensure unhindered air circulation.
26
!
Blocked ventilation grids lead to increased unit
heating which in turn reduces the cooling capacity
and thus impairs correct functioning.
12
Functional and Operating Elements
7.
Functional and Operating Elements
7.1 Temperature control module C1
19
17
18
4
2
13
1
12
11
14
16
A
20
max.
Liquid
level
min.
9
10
A
1
2
4
9
10
11
12
13
14
16
17
18
19
20
Symbol:
Read the instruction manual!
Mains switch
Reset button (outer ring of setting button)
Heating control display
Mounting screw for circulation set
Pump outlet
Mains cable
Fuses (if this fuse is triggered, see chap. 12.4)
Excess temperature setting dial
Air inlet opening
Fault display
Mains display LED
Temperature setting dial
Temperature fine-adjustment
Mounting screw for thermometer clamp (on both sides)
13
Functional and Operating Elements
7.2 Temperature control module DC1
6
5
7
4
8
3
12
1
2
13
11
14
16
A
max.
Liquid
level
min.
9
10
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
Symbol:
Read the instruction manual!
Mains switch
Reset button (outer ring of setting button)
Menu selection key
Heating control display
Menu position display
Set or actual temperature display
Value alteration (↑) higher / (↓) lower
Enter key
Mounting screw for circulation set
Pump outlet
Mains cable
Fuses (if this fuse is triggered, see chap. 12.4)
Excess temperature setting dial
Air inlet opening
Fault display
14
Functional and Operating Elements
7.3 Temperature control modules DC3 and DC5
(externally identical; DC5 with additional RS232C
interface). Temperature control module DL3
(extended version of the DC3 with deeper immersion
depth)
6
15
5
7
12
4
8
13
3
11
1
14
2
A
max.
Liquid
level
min.
9
10
DL3
min.
9
10
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Symbol: Read the instruction manual!
Mains switch
Reset button (also Start key)
Menu selection key
Heating control display
Menu position display
Set or actual temperature display /
fault display
Value alteration (↑) higher / (↓) lower
Enter key
Mounting screw for circulation set
Pump outlet
Mains cable
Fuses (if this fuse is triggered, see chap. 12.4)
Excess temperature setting dial
Air inlet opening
RS232C interface (only DC5)
15
Functional and Operating Elements
7.4 Bath vessel “W” (example model) and “B3”
21
24
25
22
23
HAAKE W13
HAAKE B3
21
22
23
24
25
Mounting screws for angled holder
or bath bridge
Handle
Drainage nozzle
Opening for temperature control module
with intermediate plate
Bath opening (with plastic bath covering
as a standard feature)
16
Functional and Operating Elements
7.5 Bath vessel “V”
21
22
29
28
A
ACHTUNG
26
27
10 A max
23
!
HAAKE V
30
A
Symbol:
21
Mounting screws for angled holder
or bath bridge
Handle
Drainage nozzle
Ventilation grid
Cooling unit mains switch
Mains socket for temperature control unit
Fuses (if this fuse is triggered, see chap. 12.4)
Mains cable
22
23
26
27
28
29
30
17
Read the instruction manual!
Functional and Operating Elements
7.6 Bath vessel K15
24
25
29
28
26
A
27
ACHTUNG
10 A max
!
23
30
HAAKE K15
A
Symbol:
23
24
Drainage nozzle
Opening for temperature control module
with intermediate plate
Bath opening (with plastic bath covering
as a standard feature)
Ventilation grid (removeable, four mounting points: )
Cooling unit mains switch
Mains socket for temperature control unit
Fuses (if this fuse is triggered, see chap. 12.4)
Mains cable
25
26
27
28
29
30
18
Read the instruction manual!
Functional and Operating Elements
7.7 Bath vessel K20
22
24
25
29
28
ACHTUNG
A
10 A max
!
HAAKE K20
30
27
23
26
A
Symbol:
22
23
24
Handle
Drainage nozzle
Opening for temperature control module
with intermediate plate
Bath opening (with plastic bath covering
as a standard feature)
Ventilation grid (removeable, four mounting points: )
Cooling unit mains switch
Mains socket for temperature control unit
Fuses (if this fuse is triggered, see chap. 12.4)
Mains cable
25
26
27
28
29
30
19
Read the instruction manual!
Assembly
8.
Assembly
The complete program is based on individual modular components which have all been separately tested to the highest
standards. In order to guarantee a high degree of availability,
the components are kept on stock as separate units by us,
our dealers and representatives, and grouped together just
prior to shipment to our customers according to their order.
These units are packed individually in order to ensure safety
during transport. Therefore there are a few simple assembly
steps left to be carried out by the customer.
You require:
1 screwdriver – size no. 2 (for Phillips screws)
Follow the following steps:
You can find the correct page for the instructions for your respective unit in the table on the following page.
20
Assembly
Assembly for all temperature control units C1, DC1, DC3,
DL3 and DC5 is for the most part identical.
As an immersion circulator with bracket mounting
see page 23
As an open-bath circulator with angled mounting
see page 24
As an open-bath circulator with bath bridge
see page 25
As a combined open-bath and heating circulator with
bath bridge H33 and polyacrylic bath W5P
see page 26
As a heating circulator with bath vessel B3
see page 27
As a refrigerated circulator with bath vessel K15 or K20
see page 27
A model-orientated table of contents can be found on the
next page.
21
Assembly
C1
Immersion circulator C1 . . . . . . . . . . . . . . . . . . . . . .
Open-bath circulator (stainl. steel bath) C1-W13
Open-bath circulator (stainl. steel bath) C1-W19
Open-bath/Heating circulator (polyacr.) C1-W5P
Heating circulator C1-B3 . . . . . . . . . . . . . . . . . . . . .
Refrigerated circulator C1-K15 . . . . . . . . . . . . . . . .
Refrigerated circulator C1-K20 . . . . . . . . . . . . . . . .
Page 23
Page 24
Page 25
Page 26
Page 27
Page 27
Page 27
DC1
Immersion circulator DC1 . . . . . . . . . . . . . . . . . . . .
Open-bath circulator (stainl. steel bath) DC1-W13
Open-bath circulator (stainl. steel bath) DC1-W19
Open-bath circulator (polyacr.) DC1-W12P . . . . .
Open-bath circulator (polyacr.) DC1-W18P . . . . .
Open-bath circulator with cooling DC1-V . . . . . . .
Heating circulator DC1-B3 . . . . . . . . . . . . . . . . . . .
Refrigerated circulator DC1-K15 . . . . . . . . . . . . . .
Page 23
Page 24
Page 25
Page 25
Page 25
Page 24
Page 27
Page 27
DC3
Immersion circulator DC3 . . . . . . . . . . . . . . . . . . . . Page 23
Open-bath circulator (stainl. steel bath) DC3-W15 Page 24
Open-bath circulator (stainl. steel bath) DC3-W26 Page 25
Open-bath circulator with cooling DC3-V . . . . . . . Page 24
Open-bath/Heating circulator (polyacr.) DC3-W5P Page 26
Heating circulator DC3-B3 . . . . . . . . . . . . . . . . . . . Page 27
Refrigerated circulator DC3-K15 . . . . . . . . . . . . . . Page 27
Refrigerated circulator DC3-K20 . . . . . . . . . . . . . . Page 27
DL3
Immersion circulator DL5 . . . . . . . . . . . . . . . . . . . .
Open-bath circulator DC5-W26 . . . . . . . . . . . . . . .
Open-bath circulator DC5-W45 . . . . . . . . . . . . . . .
Open-bath circulator DC5-W46 . . . . . . . . . . . . . . .
Page 23
Page 25
Page 25
Page 25
DC5
Immersion circulator DC5 . . . . . . . . . . . . . . . . . . . .
Open-bath circulator (stainl. steel bath) DC5-W26
Open-bath circulator (stainl. steel bath) DC5-W45
Open-bath circulator (stainl. steel bath) DC5-W46
Heating circulator DC5-B3 . . . . . . . . . . . . . . . . . . .
Refrigerated circulator DC5-K20 . . . . . . . . . . . . . .
Page 23
Page 25
Page 25
Page 25
Page 27
Page 27
22
Assembly
8.1 Immersion circulators with bracket mounting
31
20
1
Screw angled nozzle onto pump outlet 10.
Attach bracket mounting for bath vessel 32:
.
10
32
2
Stand the temperature control module upside-down,
!
Dry unit first if necessary, in order to avoid exposing the electronics to water penetration.
3
Unscrew pair of screws 31 and remove spacers
4
Attach bracket mounting using these screws.
5
For the C1:
Attach the control thermometer bracket to the casing
screw 20 at the side. This is possible on both the right
or left side.
35
36
All containers which fulfill the following conditions can be
used as the bath vessel:
•
•
•
•
perpendicular walls,
corrosion-resistant,
minimum bath depth 150 mm (DL3 = 250 mm) (35),
wall thickness max. 26 mm (36).
!
Polyacrylic and other plastic vessels are instable
at higher temperatures, therefore:
• Only use under supervision!
• Set the excess temperature protection
accordingly
(below 65°C for polyacrylic baths)!
• The usage of a bath bridge is recommended in order to avoid a one-point load on the bath vessel!
Further on page 34 “Filling”.
An explanation on how to mount an optional
cooling coil can be found on page 28.
Afterwards further on page 32.
23
Assembly
8.2 Open-bath circulators with angled mountings
33
1
Screw angled nozzle onto pump outlet 10.
Attach angled mounting for bath vessel 33:
31
20
.
33
2
Stand the temperature control module upside-down,
!
Dry unit first if necessary, in order to avoid exposing the electronics to water penetration.
3
Unscrew pair of screws 31 and remove spacers,
4
Attach bracket mounting using these screws.
5
Attach the temperature control module to the rear side
of the bath using the thumbwheel screws 21.
6
For the C1:
Attach the control thermometer bracket to the casing
screw 20 at the side. This is possible on both the right
or left side.
10
21
Further on page 34 “Filling”.
An explanation on how to mount an optional
cooling coil can be found on page 28.
Afterwards further on page 32.
24
Assembly
8.3 Open-bath circulators with bath bridge and
stainless steel or polyacrylic baths
34a
31
. .
Preparation:
!
Stand the temperature control module upside-down,
Dry unit first if necessary, in order to avoid exposing the electronics to water penetration.
2
Unscrew pair of screws 31 and remove spacers,
3
Slide the seal 34 over the shaft up to shortly before the
screw heads 34a. Please note the the screws are not
symmetrically aligned!
Rotate the seal accordingly.
1
34
31
10
Mounting the bridge:
4
Slide the bridge 37 over the shaft as far as the seal 34.
Now slide it and the seal as far as the screw heads or
stopper.
5
Insert the screws 31 through the bridge and screw tight
(insert 50 mm extension piece if necessary for bridge
H34 and use sheet casing).
6
Screw angled nozzle onto pump outlet 10.
37
The seal 34 may have to be pressed slightly into the
respective recess from above.
Mounting the bridge onto the bath vessel:
21
7
Attach the bridge to the bath vessel with the thumbwheel screws 21 (bridge overlaps; only tighten screws
lightly).
8
Fit the supplied conical bungs in the thermometer holes
in the bridge.
Further on page 34 “Filling”.
An explanation on how to mount an optional
cooling coil can be found on page 28.
Afterwards further on page 32.
An explanation on how to mount an optional
lifting platform can be found on page 29.
25
Assembly
8.4 Open-bath and heating circulators with bath
bridge H33 and polyacrylic bath
34a
. .
31
Preparation:
34
!
Stand the temperature control module upside-down,
Dry unit first if necessary, in order to avoid exposing the electronics to water penetration.
2
Unscrew pair of screws 31 and remove spacers,
3
Slide the seal 34 over the shaft up to shortly before the
screw heads 34a. Please note the the screws are not
symmetrically aligned!
1
31
Mounting the bridge:
39
4
Slide the bridge with the accessories already fitted over
the shaft as far as the seal 34 (with the drilling 39 towards the back). The cooling coil now surrounds the
shaft.
Now slide the bridge and the seal as far as the screw
heads or stopper.
5
Insert the screws 31 through the bridge and screw tight.
Mounting the swivel part of the circulation set 40:
40
6
Preparation:
Unscrew the screw 9 from the unit shaft and loosen
screw 9a of the circulation set 40.
7
Locate swivel part 40,
8
Insert screw 9. Slightly tighten both screws 9 and 9a.
9a
40
9
Mounting the bridge onto the bath vessel:
9
Attach the bridge to the bath vessel with the thumbwheel screws 21 (bridge overlaps; only tighten screws
lightly).
10
Fit the supplied conical bungs in the thermometer holes
in the bridge.
21
Further on page 30 “Connecting Hoses”.
26
Assembly
34a
8.5 Heating circulators with bath vessel B3
Refrigerated circulators with cooling bath K15 or K20
. .
31
34
•
•
•
•
!
Stand the temperature control module upside-down,
Dry unit first if necessary, in order to avoid exposing the electronics to water penetration.
2
Unscrew pair of screws 31 and remove spacers,
3
Slide the seal 34 over the shaft up to shortly before the
screw heads 34a. Please note the the screws are not
symmetrically aligned!
1
37
31
The plate 37 is equipped with a wide range of
accessories according to the unit ordered:
Plate + circulation set + cooling coil (fully equipped B3)
Plate + circulation set (fully equipped K15 and K20)
Plate + cooling coil (optional)
Plate without accessories (optional)
37
Mounting the plate:
4
Slide the plate 37 with the accessories already fitted
over the shaft as far as the seal 34. Now slide it and the
seal as far as the screw heads or stopper.
5
Insert the screws 31 through the plate and screw tight.
Mounting the swivel part of the circulation set 40:
40
6
Preparation:
Unscrew the screw 9 from the unit shaft and loosen
screw 9a of the circulation set 40.
7
Locate swivel part 40,
8
Insert screw 9. Slightly tighten both screws 9 and 9a.
9a
40
9
Mounting the plate on the bath vessel / cooling unit:
38
9
Locate the plate 37 with the attached temperature control module on top of the bath vessel / cooling unit and
secure using the four sunken screws 38.
10
Fit the supplied conical bungs in the thermometer holes
in the bridge.
Further on page 30 “Connecting Hoses”.
If a cooling coil and not a circulation set has been ordered: further on page 32 “Tap Water Cooling”.
Afterwards further on page 34.
27
Assembly
A
8.6 Subsequently fitting a cooling coil
Open-bath circulators with bracket mounting A or
angled mounting B
1
Remove the hexagon nuts from the cooling coil.
2
Insert cooling coil from below through the bracket or
angled mounting as illustrated.
The cooling coil now surrounds the shaft of the temperature control module.
B
3
Adjust the cooling coil (it should be equally spaced
away from the shaft on all sides) and screw tight using
hexagon nuts..
4
Attach the cooling coil with the bracket or angled
mounting to the unit according to the instructions on
pages 20 and 21.
37
Open-bath circulators with a plate on a bath bridge:
HAAKE
DC
1
Remove the covering plate from the marked openings
(↓↓).
2
Insert cooling coil from below into the plate 37 as illustrated.
The cooling coil now surrounds the shaft of the temperature control module.
3
Adjust the cooling coil (it should be equally spaced
away from the shaft on all sides) and screw tight using
using the screw which previously held the covering
plate
28
Assembly
8.7 Fitting a lifting platform to the bridge
8.7.1 Lifting platforms 333-0217 and 333-0227
1
Remove the closure pieces 43 and loosen nuts 45a
and 46,
2
Insert the two handles with the sleeves 44 of the lifting
platform from above and tighten nut 45a from below using a wrench,
3
Adjust the handles to the same height by loosening and
subsequently locking the thumbwheel screws 45,
4
Stand the temperature control module with the bath
bridge and inserted rods upside-down,
5
Locate the lifting platform 47 and screw tight using nuts
46 a washers,
6
Place the entire assembly onto the bath vessel.
43
44
45
45a
47
46
The height adjustment of the lifting platform is carried
out via the thumbwheel screws 45.
29
Connecting Hoses
9.
A
Connecting Hoses
Pump nozzle A:
front: return flow from external object
rear: 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 covering plate D attached with a union nut E (supplied as
standard). However, in order to achieve a better temperature
constancy, it is recommended not to close but to connect the
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 temperature 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 circulator.
!
High operating temperatures will lead to high temperatures 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!
9.1 Plastic hoses
It must be ensured that the hoses selected are fully suitable
for the particular application, i.e. that they will not split, crack
or become disengaged from their nozzles.
HAAKE circulators are supplied with Perbunan hoses as
standard. They have proven their versatility in the temperature range between - 30 to + 100°C.
Perbunan is resistant against water, alcohol and most oils.
!
The hose delivered as standard is only suitable for
temperature up to 100°C (or 210°F)!
30
Connecting Hoses
Hoses for other thermal liquids and temperature ranges can
also be supplied by HAAKE:
A
Hose material:
Permissible
Temperature range:
Remarks:
PVC
Viton
Silicone
Metal
10 to 60°C
– 60 to 200°C
– 30 to 220°C
–100 to 350°C
For water only!
Not for silicone oil!
universally suitable
The hoses are connected using the hose fittings B supplied
for 8 or 12 mm ∅ which are attached to the pump nozzle A
with the coupling nut E.
A
B
E
9.2 HAAKE metal hoses
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, gaskets are not required.
!
The hoses must not be extremely bent or subjected
to mechanical strain!
7
These hoses are available in lengths of 0.5, 1.0 and 1.5 meters from 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 (M16 x 1, DIN
12 879, part 2) at either end. The counter piece for attaching
them complies to the left hand sketch.
31
Connecting Hoses
9.3 Tap water cooling
Only for units without own refrigeration unit!
9.3.1 Connection to cooling (tap) water
Using the cooling coil a lowest operating temperature
approx. 3°C above the given cooling water temperature can be achieved.
K
1
Use hoses with 8 mm internal ∅ and connect to the
cooling coil K. The direction of the flow can be 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 hamper 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.
2
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 increase the water flow,
9.4 External Cooling Devices
Heating / Open-bath circulator
With immersion and flow-through coolers from HAAKE, the
heat transfer liquid can be cooled down considerably below
0°C and the circulator can be rendered independent of tap
water.
A flow-through cooler should be used for the C1-B3,
DC1-B3, DC3-B3 and DC5-B3. The flow-through cooler is
hooked up into the return flow line of the external vessel and
from there to the circulator (see Fig.).
External
Object
FlowThrough
Cooler
Immersion coolers have proven themselves especially suitable for open-bath circulators with angled brackets or the
bath bridge H32.
The fitting opening is already provided in the bath bridge
H32.
The assembly and application are described in the cooler
instruction manual in detail.
32
Connecting Hoses
9.5 Pressure pump
9.5.1 Temperature controlling an object in the
internal bath
Close pressure and return port A with the closing
pieces and coupling nuts or, better yet, connect the two
nozzles with a short hose.
A
9.5.2 Connection of external closed systems
E.g. instruments with a pressure-tight temperature
jacket or coil or a heat exchanger.
Heating / Open-bath circulator
Hose connection:
From the pressure port (at the rear) to the external object and then back to the return port (at the front).
If it cannot be avoided that the external object is situated 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.
External
Object
33
Filling
10. 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.
10.1 Recommended bath liquids
5 to 95°C
Distilled Water
• Normal tap water leads to calcareous deposits necessitating 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, however above 80°C water vaporization reaches a level
which necessitates the liquid to be constantly replenished.
!
–30 to 80°C
Immersion circulators which are not combined
with a bath bridge should not be operated
constantly over a vapor emitting bath!
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 evaporating 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.
34
Filling
–30 to 145°C
HAAKE SIL180
…this heat transfer liquid is suitable for covering nearly the
entire range with just one liquid especially when used with
the cooling units K15 and K20.
Unfortunately SIL180 has a creeping tendency necessitating the occasional cleaning of the bath cover.
above 80°C
HAAKE offers a range of heat transfer liquids for these temperature control applications.
MIN ... :
Mineral oil is inexpensive, it can however cause
annoying smells.
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 get in contact with us should you have any questions.
We are glad to advise you and can help you to choose a heat
transfer liquid suitable for your application
HAAKE heat transfer liquids are supplied with an EC Safety
Data Sheet.
! Important !
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
! Important !
It is absolutely mandatory that the overtemperature cutoff point is set lower than the flash point for the heat
transfer liquid selected. (See Chapter 16).
! Important !
The highest working temperature as defined by the EN
61010 (IEC 1010) must be limited to 25°C below the
flashpoint of the bath liquid.
! Important !
Please ensure when selecting the heat transfer liquid
that no toxic gases can be generated and bear in mind
that inflammable gases can build up over the liquid during usage.
35
Filling
10.2 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 temperature 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
filled to the max. level. After starting the unit, the pump will
feed the necessary liquid to the external system. Should the
demand be higher than the volume difference between high
and low, the low liquid level sensor will be activated and the
pump switched off.
2
In this case:
1
Replenish the liquid,
2
Reset the unit:
Press in the outer ring 2 (at the rear) for the C1 and
DC1,
Depress the key 2 (at the front) for the DC3, DL3 and
DC5
⇒ The unit starts up again
3
Repeat this action if necessary.
2
36
Draining
11. Draining
The temp. control unit is drained at the nozzle 23.
23
1
Place a suitable vessel underneath nozzle.
Bear in mind that the liquid will run out in a slight arc.
2
Turn plug slowly until it becomes disengaged from the
thread. A pin will prevent the liquid from running out
right away.
3
Pull out plug (pin) in one quick motion. The liquid will
start to run out.
4
Possible residues can be drained by tilting the circulator 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!
37
Connecting Up
12. Connecting Up
12.1 Connecting to the mains
230 V
Only attach this unit to mains sockets with a grounded earth.
Compare the local mains voltage with the specifications written 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.
115 V
12.1.1 Only for refrigerated baths K15, K20 and V
11
28
30
1
Insert the mains plug 11 of the temperature control module into the socket 28 at the rear of the refrigerated bath.
2
Connect the refrigerated bath’s mains plug 30 to
a grounded mains socket.
!
Socket 28 is live as soon as this connection
has been made whether the refrigerated bath
has been switched on at the mains switch or
not!
12.2 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 9.5).
12.3 Changing the mains plug (e.g. for Great Britain)
!
This should only be carried out by qualified specialist personnel!
The mains cable wires have the following colors:
Brown
=
Live
Blue
=
Neutral
Green/Yellow=
38
Earth
Connecting Up
12.4 Fuses on the unit
All units are equipped with automatic thermally-triggered
fuses.
If the fuse has triggered…
• the fuse does not have to be exchanged – resetting suffices;
• a red 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.
39
Operating the C1
13. Operating the C1
19
17
4
18
13.1 Switching on
1
Set the excess temperature protection clearly above
the desired operating temperature using the dial 13.
Switch the circulator on at the mains switch 1.
This causes:
⇒ Mains display light 17 shows green.
2
1
⇒ Pump motor starts up – the heat transfer liquid starts
to circulate.
A separate cooling device (if available) is switched on via it’s
own mains switch 27. The compressor starts with a slight
jerk. Only activate cooling device if cooling is actually required.
13.2 Setting the desired temperature
13
1
The set temperature is adjusted using the dial 18.
(in divisions of 1°C).
Temperature fine-adjustment is carried out using the potentiometer 19 (a small screwdriver is required for this). Fineadjustment can be controlled via a checking thermometer.
Please note that the circulator requires some time to react to
alterations.
13.3 Heating control lamp
27
The display 4 lights up when the heating is switched on (set
temperature is higher than the current temperature).
⇒ display 4 lights up constantly during the heating up
phase,
⇒ display 4 flashes on and off during the control phase.
The display 4 does not light up if the heating is not activated
(set temperature is lower than the current temperature).
13.4 Displaying the actual temperature
The thermometer supplied as a standard feature is graduated in segments of 0.5°C. Thermometers with smaller
gradations are available on special request.
Please note: This thermometer is neither calibrated nor
gauged.
13.5 Excess temperature protection
Further on chapter 16.
40
Operating the DC1
14. Operating the DC1
5
6
3
8
14.1 Switching on
1
Set the excess temperature protection clearly above
the desired operating temperature using the dial 13.
2
Switch the circulator on at the mains switch 1.
7
1
This causes:
⇒ Pump motor starts up – the heat transfer liquid starts
to circulate.
⇒ Display 6 shows the actual temperature at the control
sensor (resolution 0.1°C).
A separate cooling device (if available) is switched on via it’s
own mains switch 27. The compressor starts with a slight
jerk. Only activate cooling device if cooling is actually required.
13
14.2 Setting the desired temperature
27
1
Press the key 3, until “ ” (set value) is shown at the
display 5
2
Alter the value shown on the display 6 using the keys
7 (↑) or (↓)
If one of the keys 7 is held depressed the first degree
of temperature alteration is carried out slowly. After
this, the alteration rate is multiplied by five.
3
Press the Enter key 8.
⇒ The selected value is confirmed as the new set
value.
The new value is not saved until the Enter key has
been pressed. The circulator continues to use the
old set value.
The display 6 automatically switches back to actual temperature display after a short time.
After the Enter key 8 has been depressed, the set value remains stored even in case of a power failure.
41
Operating the DC1
14.3 Heating control lamp
4
6
3
8
7
The display 4 lights up when the heating is switched on (set
temperature is higher than the current temperature).
⇒ display 4 lights up constantly during the heating up
phase,
⇒ display 4 flashes on and off during the control phase.
The display 4 does not light up if the heating is not activated
(set temperature is lower than the current temperature).
14.4 Displaying the actual temperature
Display 6 shows the actual temperature at the control sensor
with a resolution of 0.1°C.
This temperature does not correspond directly to the temperature 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).
It is entered into the circulator as the correction factor ” ”
(RTA system) and remains stored there.
The resolution of the correction factor “ ” according to the
RTA system is 0.01°C. Possible change ± 2,5°C.
Entry (see example overleaf):
1
Press the key 3, until “ ” is shown on the small display 5.
2
Alter the value shown on the display 6 using the keys
7 (↑) or (↓)
3
Press the Enter key 8.
⇒ The selected value is confirmed as the new
correction factor.
The new value is not saved until the Enter key has
been pressed. The circulator continues to use the
old value.
Warning: The correction factor “c” may have to be
determined again if the set temperature is altered!
The display 6 automatically switches back to actual temperature display after a short time.
After the Enter key 8 has been depressed, the correction
value (like the set value) remains stored even in case of a
power failure.
42
Operating the DC1
Example:
Set value programmed at the circulator
Tset = 70.7°C
Actual temperature in bath / system
Tact = 70.5°C
⇒ Deviation, calculated according to
∆T = Tset – Tact
⇒ Entry of the corrected value ∆T as
correction factor “ ”
∆T =
0.2°C
= +0.2°C
The temperature control is thus internally altered so that the
desired 70.7°C is also attained in the external system. The
temperature displayed at the circulator and that of the external system now correspond with each other.
14.5 Excess temperature protection
Further at chapter 16.
43
Operating the DC3, DL3 and DC5
15. Operating the DC3, DL3 and DC5
5
6
3
8
15.1 Switching on
1
Set the excess temperature protection clearly above
the desired operating temperature using the dial 13.
7
Switch the circulator on at the mains switch 1.
This causes:
⇒ The version number of the operating software is briefly
shown at display 6: e.g. “n 1.5”
2
2
1
⇒ Display 6 flashes over all segments
3
Press the Reset key 2 (= start).
⇒ Display 6 shows the actual temperature at the control
sensor (resolution 0.1°C).
13
⇒ Pump motor starts up – the heat transfer liquid starts
to circulate.
A separate cooling device combined with the DC3 or DC5 is
switched on via its own mains switch 27. The compressor
starts with a slight jerk. Only activate cooling device if cooling
is actually required.
27
15.2 Starting up again after a power failure
The temperature control module switches itself off in case of
a power failure. Display 6 flashes over all segments
.
Switching on again is only possible after the reset key 2 has
been pressed. This is due to safety reasons.
The unit reacts in the same way if is switched on via a mains
switch in the laboratory.
You can choose if you want to retain these standard default
settings. The units can be switched to automatic resetting in
both cases mentioned above. This is activated via a separate menu option which can be accessed by pressing the
“menu”-key 3 whilst simultaneously switching on the unit.
44
Operating the DC3, DL3 and DC5
Keep pressing the key 3, until…
5
6
is shown in the display.
This is the default setting.
3
8
If you switch with key 7 (↑) to…
7
and confirm this using the Enter key 8, the DC5 will
switch on again automatically from now on and resetting after the circulator is switched on is no longer necessary.
Please consider any possible resulting risks!
Please wait, until the display returns to showing the actual
temperature and switch the circulator off. The standard
menu appears after restarting the unit.
15.3 Displaying the software version
If a key is held depressed as the unit is switched on, the operating software version no. (e.g. ‘n 1.5’) is shown on the display until the key is released.
15.4 Setting the set temperature
1
Press the menu key 3 repeatedly until “ ” (for set value)
is shown on the small display 5.
2
Increase (↑) or decrease (↓) the value shown on the
display 6 via the keys 7.
If you keep one of the keys 7 depressed, the first degree of temperature alteration is shown slowly in tenths
of a degree. After this the temperature alteration rate
accelerates to five times quicker.
3
Press the Enter key 8.
⇒ The selected value is confirmed as the new set
value.
The new value is not saved until the Enter key has
been pressed. The circulator continues to use the
old set value.
Warning: The correction factor “c” may have to be
determined again if the set temperature is altered!
(see chapter 15.6)!
If the symbols
and
in the display 5 flash alternately,
= .
then
Go to chapter 15.7.
The display 6 automatically switches back to actual temperature display after a short time.
After the Enter key 8 has been depressed, the set value remains stored even in case of a power failure.
If it is not possible to set the desired temperature
xx”), please read chapdue to a fault (display “
ter 17.2.
45
Operating the DC3, DL3 and DC5
15.5 Heating control lamp
4
6
3
8
7
The display 4 lights up when the heating is switched on (set
temperature is higher than the current temperature).
⇒ display 4 lights up constantly during the heating up
phase,
⇒ display 4 flashes on and off during the control phase.
The display 4 does not light up if the heating is not activated
(set temperature is lower than the current temperature).
15.6 Displaying the actual temperature
Display 6 shows the actual temperature at the control sensor
with a resolution of 0.1°C.
This temperature does not correspond directly to the temperature 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).
It is entered into the circulator as the correction factor ” ”
(RTA system) and remains stored there.
The resolution of the correction factor “ ” according to the
RTA system is 0.01°C. Possible change ± 2,5°C.
Entry (see example overleaf):
1
Press the key 3, until “ ” is shown on the small display 5.
2
Alter the value shown on the display 6 using the keys
7 (↑) or (↓)
3
Press the Enter key 8.
⇒ The selected value is confirmed as the new
correction factor.
The new value is not saved until the Enter key has
been pressed. The circulator continues to use the
old value.
Warning: The correction factor “c” may have to be
determined again if the set temperature is altered!
The display 6 automatically switches back to actual temperature display after a short time.
After the Enter key 8 has been depressed, the correction
value (like the set value) remains stored even in case of a
power failure.
46
Operating the DC3, DL3 and DC5
Example:
Set value programmed at the circulator
Tset = 70.7°C
Actual temperature in bath / system
Tact = 70.5°C
⇒ Deviation, calculated according to
∆T = Tset – Tact
⇒ Entry of the corrected value ∆T as
correction factor “ ”
∆T =
0.2°C
= +0.2°C
The temperature control is thus internally altered so that the
desired 70.7°C is also attained in the external system. The
temperature displayed at the circulator and that of the external system now correspond with each other.
47
Operating the DC3, DL3 and DC5
15.7 Temperature limitation
5
6
3
8
7
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 separately.
Setting the set value limitation can only be carried out via
the keyboard and not via the RS232C interface. Only set
values that correspond to S < H can be entered.
Temperature limitation:
1
2
3
!
Press the key 3, until “ ” is shown at the display 5.
Alter the value shown on the display 6 using the keys
7 (↑) or (↓). Setting is possible with a resolution of 1°C.
and only with positive values.
Press the Enter key 8.
⇒ The selected value is confirmed as new limit
value.
Each DC5 is set to a highest temperature “ ” of 150°C
in the factory.
The value must not be altered if the compressor
cooled units K15, K20 or V are used!
Higher temperatures can damage the compressor
cooling circuit and the bath insulation.
The new value is not saved until the Enter key has
been pressed. The circulator continues to use the
old value.
The display 6 automatically switches back to actual temperature display after a short time.
15.7.1 Subsequently altering the temperature
limitation
When subsequently altering the set value limitation
to a value below that of the already preset temperature
set value , the set value is automatically reduced
and saved permanently with
.
to =
An alteration of
value .
48
to a value >
does not alter the set
Operating the DC3, DL3 and DC5
15.8 RS232C Interface
15
The DC5 is equipped with an RS232C interface 15.
For applications and commands see chapter 19.
15.9 The display cannot be altered
It can happen that the microprocessor ‘freezes’ under certain unfavorable external conditions e.g. mains voltage
surges or electro-magnetic disturbances. In this state it no
longer reacts to further entries and displays a random value
as the set value (e.g. -90°C) which cannot be altered.
The unit can be rendered operable again by a simple RESET
as follows:
1
Switch the unit off at the mains switch.
2
Keep the keys
and
simultaneously depressed
whilst you switch the unit back on again.
Release the keys as soon as you see the word
shown on the display.
The microprocessor is now reset to its basic default settings.
!
ALL other parameters must now be entered again.
49
Excess Temperature Protection
16. Excess Temperature Protection
6
If one of the safety devices is triggered:
• The fault display light 16 (for the C1 and DC1) lights up
• The fault cause is shown in the display 6 (for the DC3
and DC5) (see also chapter 17.2).
2
• An acoustic signal is sounded (for the DC3 and DC5)
• all voltage conducting unit components (the heating
16
element and pump motor) are switched off immediately
i.e. the safety circuit transfers the unit to a stable, safe
condition.
C1, DC1
The fault cause must be identified and remedied.
13
After the fault has been eliminated the unit can be started
again by pressing the Reset key 2 (outer ring 2 at rear for
C1 and DC1).
2
C1, DC1
16.1
!
13
Excess temperature protection dial
It offers protection against dangers caused by an uncontrolled heating up of the heat transfer liquid above the desired set temperature.
The cut-off temperature is adjusted with the excess temperature setting dial 13.
Proper protection can only be guaranteed if the
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 25°C below the
flash point of the bath liquid used.
• Protection of the object to be temperature controlled (secondary importance):
Additional protection, e.g. of a biological sample. The
cut-off point should be set as close as possible to the
desired temperature value.
50
Excess Temperature Protection
16.1.1 Setting the excess temperature
The cut-off point is set with the excess temperature dial 13
with a rough scale of temperature values arranged around
it. This scale, of course, can only serve as an approximate
setting means for this cut-off point. However, the cut-off point
can be determined to act exactly if the following procedure
is adhered to:
13
If for instance a bath liquid has a flash point of 60°C the unit
should cut off after reaching 35°C at the latest:
1
First set the desired set value “ ” using keys 7 (↑) or
(↓) to exactly 35°C.
2
After the circulator has reached this temperature, turn
the excess temperature dial 13 backwards very slowly
(to the left) until the unit cuts off (acoustic signal, malfunction light 16 is on).
3
Then set the set temperature to the actual temperature
(< 35°C).
4
Reset the unit via the Reset key 2 after the heat transfer
liquid has cooled down somewhat.
7
2
16
C1, DC1
13
2
C1, DC1
⇒ The unit can now be used for temperatures below
35°C. As soon as 35°C is reached, it is securely
switched off.
16.1.2 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 or thermometer.
The value indicated when the alarm goes off is the real cutoff temperature. The reaching of the cut-off point is indicated
at the display by the following message:
51
Fault Displays
17. Fault Displays
17.1 C1 and DC1
17.1.1 Excess temperature or low liquid level
Fault display light 16 is illuminated; heating element
and pump are completely switched off.
16
The excess temperature protection can be triggered if:
•
there is not enough liquid in the bath
⇒ check for leaks, top up if necessary,
⇒ fluid has evaporated, top up if necessary.
•
Excess temperature has been set too closely to
the desired set temperature
⇒ increase value slightly according to specifications made in chapter 16.1.1.
•
the control function is defective
⇒ Return unit for servicing.
17.1.2 Motor or pump overloading
The motor or pump is blocked:
⇒
The motor switches itself off. The motor
switches itself back on again automatically
a few minuted later after the temperature has
dropped again.
⇒
Check the pump for leaks.
Return the unit for servicing if necessary!
52
Fault Displays
17.2 DC3, DL3 and DC5
6
An acoustic signal is sounded and “ xx” is shown on
display 6.
The heating element and pump are completely
switched off.
The following faults are possible:
2
=
Excess temperature
=
Low liquid level
=
Pump or motor overloading
=
Sensor breakage or short circuit
=
Undefined fault
=
Range exceeded
=
Parity fault
17.2.1 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 16.1.1.
•
the control function is defective
⇒ Return unit for servicing.
17.2.2 Low liquid level
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, top up if necessary.
17.2.3 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 2. If the circulator switches off again after a
short time, return the unit for servicing!
53
Fault Displays
17.2.4 Sensor breakage or short circuit
The sensor must be exchanged by qualified service
personnel. Please return unit for repairs.
17.2.5 Undefined fault
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.
17.2.6 Range exceeded
The set value and high limit value are cyclically
checked for their validity. The fault message “B Err” is
shown on the display in case of the range being exceeded. The heating is switched off.
⇒ Switch the unit off and start it up again according
to the instructions detailed in chapter 15.9.
⇒ Return the unit for repairs in case of repeated
faults.
17.2.7 Parity fault
All data is saved together with a corresponding parity
bit in the permanent storage (SRAM). When this data
is accessed, the respective parity bit is checked. In
case of a parity fault the fault display “S Err” is shown
on the display. The heating then shuts itself down.
⇒ Switch the unit off and start it up again according
to the instructions detailed in chapter 15.9.
⇒ Return the unit for repairs in case of repeated
faults.
17.2.8 External fault
The DC5 can be switched to fault status via the
RS232C interface. In this case see chapter 19.6 (command “ER”).
6
2
17.2.9 Fault eliminated?
After the fault has been eliminated, the cause of the
). The prefault is shown on the display 6 (e.g.
ceding three zeros mean that the fault has been eliminated
The reset key 2 must be pressed in order to start up
the unit again.
54
Testing the Safety Features
18. Testing the Safety Features
The safety features for excess temperature protection and
low liquid level protection must be checked at regular intervals. 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
shown that between 6 to 12 times a year is sufficient.
18.1 Excess temperature protection
Set a cut-off temperature (see chapter 16.1) that is lower
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 16.1.1.
It may be deemed necessary to have the unit checked over
by qualified service personnel.
18.2 Low liquid level protection
(for the DC3, DL3 and DC5)
Drain the heat transfer liquid slowly during operation (use
a drainage tap if necessary) and check if the unit really does
switch itself off (see chapter 11).
If not the unit must be checked over by qualified service personnel.
55
RS232C Interface for DC5
19. RS232C Interface for DC5
The following circulator functions can be controlled by a
computer via the RS232C interface:
•
Setting the desired set temperature “ ” 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.
19.1 Connecting the DC5 to a computer
The pin assignment required when connecting a DC5 to a
computer via a 9-pin RS232C socket is as follows:
9 pin RS232C
Cable (9pin to 9pin)
9 pin RS232C
3
3
3
3
2
2
2
2
7
7
7
7
8
8
8
8
5
5
5
5
6
DSR
6
6
6
TxD
RxD
RTS
CTS
RxD(Received Data)
TxD(Transmitted Data)
CTS(Clear to Send)
RTS(Request to Send)
Signal ground
DTR
DC5
Computer
The pin assignment required when connecting a DC5 to a
computer via a 25-pin RS232C socket is shown overleaf.
56
RS232C Interface for DC5
The pin assignment required when connecting a DC5 to a
computer via a 25-pin RS232C socket is as follows:
25 pin RS232C
TxD
RxD
RTS
CTS
DSR
Cable (25pin to 9pin)
9 pin RS232C
2
2
3
3
3
3
2
2
4
4
7
7
5
5
8
8
7
7
5
5
6
6
6
6
RxD(Received Data)
TxD(Transmitted Data)
CTS(Clear to Send)
RTS(Request to Send)
Signal ground
DTR
DC5
Computer
19.2 Interface parameters
Interface parameters can only be set/altered via the DC5 operating panel.
Baud rate
(600, 1200, 2400, 4800, 9600)
Parity
(OFF= without parity
(odd = odd parity
(E = even parity)
Handshake (OFF= without RTS/CTS
(ON = with RTS/CTS)
These three transfer parameters cannot be altered via the interface.
DC5 maximum baud rate
We recommend a maximum Baud rate of 4800 bps.
The communication between the PC and the DC5 circulator
should take place at a maximum Baud rate of 4800 bps.
Data transfer faults can occur at a Baud rate of 9600 bps.
57
RS232C Interface for DC5
19.3 Requirements made of external units
Only units which have been tested according to
EN 60 950 (=IEC 950) should be connected to the
DC5 interface!
19.4 Setting the desired set value
If the desired value is set via the computer, two horizontal lines are shown on the display 5.
Additionally:
a) If the RS232C connection is interrupted, the circulator controls the temperature to the last set value entered via the interface.
b) After the mains supply current has been switched
off and on, the circulator controls the temperature to
the last value entered via the DC5 keyboard itself
and not the value given by the computer.
19.5 Correction value
5
If the correction value is set via the computer, two horizontal lines are shown on the display 5. The correction
value only remains saved for as long as the supply voltage is switched on
Additionally:
a) If the RS232C connection is interrupted, the circulator operates to the last correction value entered via
the interface.
b) After the mains supply current has been switched
off and on, the circulator operates to the last value
entered via the DC5 keyboard itself and not the
value given by the computer.
58
RS232C Interface for DC5
19.6 Commands for DC5 circulators
(Capital letters must not be ignored!)
V<cr> . . . . . . . . . . . . current operating software version
e.g..: ”DC5 : 1.1–4/93$”
RS<cr> . . . . . . . . . . . RESET
Actual value
[
[
I<cr> . . . . . . . . . . . . . call up ACTUAL temperature:
<value> = <VZ>XXXX.XX C$<cr><lf>
e.g.: ”–0023.45 C$” T = –23.45°C
Set value
[
[
S<cr> . . . . . . . . . . . . call up SET temperature:
<value> = <VZ>XXXX.XX C$<cr><lf>
e.g.: ”+0023.45 C$” ⇒ set = 23.45°C
<value><cr> . . set SET temperature in 1/100°C, automatic switching to REMOTE operation as well as blocking the ENTER key
2 Spaces
<value> = {00000 .... 20000} ⇒ 0°C ... 200.00°C
<value> = {00000 .... –5000} ⇒ 0°C ... –50.00°C
02000”
e.g.: set = 20.0°C ⇒ ”S
–1050”; VZ replaces 1. charac.
set = –10.5°C ⇒ ”S
[
[
[
[
[
[
S
RTA Factor c
[
[
c<cr> . . . . . . . . . . . . . call up Offset: <value> = <VZ>XX.XX C$<cr><lf>
e.g.: ”–01.20 C$” ⇒ c = –1.2°C
[
c <VZ><value><cr>
[
[
[
set Offset in 1/100°C, automatic switching to REMOTE operation as well as blocking the ENTER key
<VZ> = {+, –};
<value> = {0000 .... +/–0255} ⇒ 0°C ... +/–2.55°C
”<Space>” and ”+” are possible as positive sign,
0123”
e.g.: c = 1.23°C ⇒ ”c
or ”c +0123”
Start and stand-by operation
ST<cr> . . . . . . . . . . . STOP control (heating off, pump continues)
GO<cr> . . . . . . . . . . START control
Alarm triggering and unlocking via the V24 interface
ER<cr> . . . . . . . . . . . unlocking after switching on or after fault has been remedied
AL<cr> . . . . . . . . . . . external alarm triggering (main relay missing, i.e. heating
and pump off)
59
RS232C Interface for DC5
19.7 DC5 keys
The Enter key on the DC5 can be blocked if the circulator is
controlled via a PC. This prevents values set via the interface
from being accidentally altered at the circulator. The key
functions UP, DOWN and MENU remain available. Alterations can however no longer be confirmed with the Enter
key.
L<cr>
Switching to REMOTE operation as well as blocking the Enter key (Lock)
U<cr>
Switching from REMOTE operation as well as releasing the
Enter key (Unlock)
19.8 Operating status
B<cr>
call up operating status:
” x
x
x
x
x
x
x
x ”, $<cr>,<lf>
0 : sensor OK
1 : sensor defective
0 : no alarm EXTERNAL
1 : alarm EXTERNAL
0 : no alarm pump
1 : alarm pump
0 : no alarm low liquid level
1 : alarm low liquid level
0 : no alarm excess temperature
1 : alarm excess temperature
0 : main relay present
1 : main relay missing
always 0, not used
0 : no active control
1 : active control
60
RS232C Interface for DC5
19.9 Example of a BASIC program
The range of commands stored in the DC5 can be activated
by this simple program:
REM command procedure for DC5
REM enter 1st command
REM 2nd command is passed on to the DC5
CLOSE
OPEN ”COM2:4800,N,8,1,CS0,DS0,CD0” AS #1
loop:
b$ = ” ”
INPUT ”command: ”;b$
if b$ = ”X” then markend
if b$ = ”x” then markend
repeat command:
PRINT #1,b$
PRINT
PRINT ”return message”
PRINT ”– – – – – – – –”
GOSUB enter
GOTO loop
markend:
END
enter:
A$ = ” ”
read loop:
X = ASC (INPUT$(1,#1))
IF X = 10 THEN read end
A$ = A$ + CHR$(X)
GOTO read loop
read end:
print a$
RETURN
Note:
Only capital letters are accepted for commands!
61
Cooling
20. Cooling
Only for unit combinations K15, K20 or V
The refrigerated bath is used mainly for enabling lower than
ambient or tap water temperatures in circulators or for cooling a heated bath down to a low temperature level very
quickly.
The working temperature range is shown in the technical
specifications.
Continuous cooling at set temperatures above
approx. 100°C should be avoided!
This would result 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. Once the temperature in the compressor circuit
were to get back to normal, the unit would then switch back
on again.
This situation must be avoided as it results in a cyclical operation of the cooling compressor which in turn reduces the
life-span of the unit.
27
1
In this case switch the refrigerated bath off at the mains
switch 27.
Switching the cooling compressor on for quick cooling down
purposes (even at working temperatures of 150°C) is however permissible.
62
Maintenance
21. 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. Vinegarbased cleaners have proved to be suitable used according
to the manufacturers recommendations.
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 according to the manufacturers recommendations.
21.1 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.
!
26
Switch off the unit and pull out the mains plug.
Only for ”V” bath:
1
Clean the fins with compressed air.
For extreme soiling remove the cooling compressor
casing (only specialist personnel).
Only for K15 and K20:
1
Loosen ventilation grid 26: Rotate the mounting screws
90° in any direction and remove grid.
2
Clean fins with brush or similar tool.
3
Replace grid and push screws back in (do not rotate
screws).
21.2 Discarding the unit:
One day the life span of your cooling unit will end.
Therefore:
!
This unit contains ozone-friendly coolant R134a.
The unit may however only be discarded by authorized personnel.
63
Technical Specifications
22. Technical Specifications
22.1 Dimensions, material and the permissible
temperature ranges of the baths
Bath
Material
Temperature (°C)
Bath opening (mm)
w. holder
w. bridge
Bath depth
(mm)
Volume (l)
from..to
Dimensions
(WxDxH) 1) (mm)
W12P
P
0..60
–
300 x 165
150
9..12
310 x 335 x 340
W18P
P
0..60
–
300 x 340
150
15..19
310 x 510 x 340
V
S
–5..150
300 x 325
300 x 175
200
10..15
535 x 335 x 400
W13
S
..200
300 x 325
300 x 175
150
7..12
335 x 360 x 350
W15
S
..200
300 x 325
300 x 175
200
10..15
335 x 360 x 400
W19
S
..200
300 x 500
300 x 350
150
12..19
335 x 535 x 350
W26
S
..200
300 x 500
300 x 350
200
20..26
335 x 535 x 400
W45
S
..200
–
300 x 500
300
37..42
360 x 540 x 510
W46
S
..200
–
300 x 700
200
26..44
360 x 910 x 410
B3
S
..200
–
130 x 100
150
3
200 x 300 x 375
K15
S
–28..150
–
130 x 100
150
4,5
385 x 465 x 415
K20
S
–28..150
–
130 x 100
150
4,5
230 x 460 x 590
1)
P = Polyacryl, S = Stainless steel
Height including temperature control module
22.2 Technical specifications of the refrigerated baths
K15
Voltage
V
K20
V
230 ± 10 % or 115 ± 10 % or 100 ± 10 %
Frequency
Hz
50 (230 V)
60 (230 V)
60 (115 V)
50–60 (100 V)
50–50 (230 V)
50–60 (230 V)
50–60 (115 V)
50–60 (100 V)
Total wattage consumption
VA
2600 (230 V)
1600 (115 V)
1600 (100 V)
2550 (230 V)
1500 (115 V)
1500 (100 V)
Additional
connections
Mains socket for temperature control module
Nmax = 2100 VA(230 V)
Nmax = 1300 VA(115 V)
Nmax = 1100 VA(100 V)
64
Technical Specifications
22.3 Technical specifications of the temperature
control modules acc. to DIN 58966
C1
DC1
DC3
DL3
DC5
–10..100
–30..100
–30..150
–30..200
–50..200
+/– K
0.05
0.02
0.01
0.02
0.01
Heater capacity 230V
W
1000
1000
1500
2000
2000
Heater cap. 115V + 100V
W
1000
1000
1200
1500
1200
mbar
300
300
300
300
300
Circulation capacity (open)
l/min
17
17
17
17
17
Max. flow rate during
circulation using
12 mm ø hoses
l/min
12.5
12.5
12.5
12.5
12.5
Immersion depth from..to
mm
85..140
85..140
95..140
95..240
95..140
Operating temperature *)
Temperature accuracy
Pump pressure max.
°C
V
230 ± 10 % or 115 ± 10 % or 100 ± 10 %
Frequency
Hz
50 or 60 (at 230 V) or 60 (at 115 V) or 50–60 (at 100 V)
Total wattage consumption
VA
Voltage
1050
1050
1550 (230 V)
1250 (115 V)
1250 (100 V)
2050 (230 V)
1550 (115 V)
2050 (230 V)
1250 (115 V)
1250 (100 V)
1W
1W
2
2
2
Excess temp. protection
variable
variable
variable
variable
variable
Low liquid level protection
–
–
fixed
fixed
fixed
Motor overload protection
yes
yes
yes
yes
yes
optical
optical
opt. + acoust.
opt. + acoust.
opt. + acoust.
–
–
yes
yes
yes
analog
digital
digital
digital
digital
–
–
yes
yes
yes
thermometer
LED green
LED green
LED green
LED green
RTA system
–
yes
yes
yes
yes
Control type
ON/OFF
ON/OFF
PID
PID
PID
Control sensor
analog IC
digital IC
Pt100
Pt100
Pt100
–
–
–
–
yes
Safety class acc. to DIN
Alarm signalling
FIS system
Temperature setting
Setting limitation
Temperature display
RS 232 C
* The working temperature range is dependant on the cooling selected.
65
Technical Specifications
22.4 Fuse values
Unit type
Mains voltage
230 V
115 V
100 V
230 V
115 V
100 V
230 V
115 V
100 V
230 V
115 V
230 V
115 V
100 V
230 V
115 V
100 V
230 V
115 V
100 V
230 V
115 V
100 V
C1
DC1
DC3
DL3
DC5
K15
K20
V–Bad
Subject to alterations
Printed in Germany (FRG)
66
Fuse(s) at the
rear panel
2x6 A
1x10 A
1x12 A
2x6 A
1x10 A
1x12 A
2x10 A
1x15 A
1x12 A
2x10 A
1x15 A
2x10 A
1x15 A
1x12 A
2x10 A/2x5 A
1x12 A/1x6 A
1x12 A/1x6 A
2x10 A/2x5 A
1x12 A/1x6 A
1x12 A/1x6 A
2x10 A/2x5 A
1x12 A/1x6 A
1x12 A/1x6 A
Fuse(s)
in the unit
1xT0,125 mA
1xT0,125 mA
1xT0,125 mA
1xT40 mA
1xT63 mA
1xT63 mA
1xT40 mA
1xT63 mA
1xT63 mA
1xT40 mA
1xT63 mA
1xT40 mA
1xT63 mA
1xT63 mA
Part no. 002-4088 A
1.1.035.2–11.96
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