English
Operating manual
Shaking Water Baths
SW22
SW23
1.951.4023-V2 06/13
JULABO GmbH
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 7823 / 24 91
info@julabo.de
www.julabo.de
19514023-V2.doc Druck: 25.07.13
Congratulations!
You have made an excellent choice.
JULABO thanks you for the trust you have placed in us.
This operating manual has been designed to help you gain an understanding of the operation
and possible applications of our circulators. For optimal utilization of all functions, we
recommend that you thoroughly study this manual prior to beginning operation.
The JULABO Quality Management System
Temperature control devices for research and industry are developed,
produced, and distributed according to the requirements of ISO 9001
and ISO 14001. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the shaking water bath and accessories and inspect them for possible transport
damage. Damage should be reported to the responsible carrier, railway, or postal authority,
and a damage report should be requested. These instructions must be followed fully for us to
guarantee our full support of your claim for protecting against loss from concealed damage.
The form required for filing such a claim will be provided by the carrier.
Printed in Germany Changes without prior notification reserved
Important: keep operating manual for future use
2
Shaking Water Baths
TABLE OF CONTENTS
OPERATING MANUAL ............................................................................................... 5
1. INTENDED USE ................................................................................................... 5
1.1. Description ................................................................................................. 5
2. OPERATOR RESPONSIBILITY – SAFETY INSTRUCTIONS .............................. 5
2.1. Disposal ..................................................................................................... 7
2.2. EC Conformity ............................................................................................ 8
2.3. Warranty conditions .................................................................................... 9
2.4. Technical data .......................................................................................... 10
OPERATING INSTRUCTIONS ................................................................................. 12
3. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS ............................. 12
4. SAFETY NOTES FOR THE USER ..................................................................... 14
4.1. Explanation of safety notes ...................................................................... 14
4.2. Explanation of other notes ........................................................................ 14
4.3. Safety instructions .................................................................................... 14
5. PREPARATIONS ................................................................................................ 16
5.1. Installation ................................................................................................ 16
5.2. Bath liquid................................................................................................. 17
5.3. Filling / Draining ........................................................................................ 18
5.4. Maintaining a constant water level / Counter cooling ............................... 19
5.5. Accessories .............................................................................................. 20
6. OPERATING PROCEDURES ............................................................................. 21
6.1. Power connection ..................................................................................... 21
7. SWITCHING ON ................................................................................................. 21
7.1. Setting the temperature ............................................................................ 22
7.2. Warning functions or temperature limit ..................................................... 22
7.3. Adjustment of the shaking frequency ....................................................... 24
7.4. Electronic timer ......................................................................................... 25
8. MENU FUNCTIONS ........................................................................................... 26
8.1. Shaking operation On/Off ......................................................................... 26
8.2. Circulator pump on/off .............................................................................. 27
8.3. Temperature indication in °C or °F ........................................................... 27
8.4. ATC - Absolute Temperature Calibration ................................................. 28
8.5. Setup for remote control ........................................................................... 29
8.6. Adjusting interface parameters ................................................................. 30
8.7. Evaluation of the temperature limits ......................................................... 31
9. SAFETY INSTALLATION (WITH SHUTDOWN FUNCTION) .............................. 31
3
10. TROUBLESHOOTING GUIDE / ERROR MESSAGES ....................................... 32
10.1. Acoustical signals and their differentiation ............................................... 34
11. ELECTRICAL CONNECTION ............................................................................. 35
12. REMOTE CONTROL .......................................................................................... 36
12.1. Communication with a PC or a superordinated data system .................... 36
12.2. List of commands ..................................................................................... 37
12.3. Status messages ...................................................................................... 38
12.4. Error messages ........................................................................................ 38
13. CLEANING / REPAIRING THE UNIT ................................................................. 39
4
Shaking Water Baths
Operating manual
1. Intended use
JULABO shaking water baths have been designed for temperature application to specific fluids
in a bath tank. Fastened on the shaking carriage, samples contained in a sealed container can
be brought to the desired temperature and simultaneously agitated.
JULABO water baths are not suitable for direct temperature control of foods,
semi-luxury foods and tobacco, or pharmaceutical and medical products. Direct
temperature control means unprotected contact of the object with the bath
medium (bath fluid).
1.1. Description
JULABO shaking water baths of the series SW22 and SW23 are ideally suited for laboratory
applications and research in the fields biology, biochemistry, pharma- cology, chemistry and
general medical technologies. They are likewise suited for routine laboratory tasks and longterm unattended operation. The JULABO shaking water bath SW 23 with constant bath liquid
circulation, ensures a constant water temperature with a maximum deviation of 0.02 C .
Julabo shaking water baths feature a stainless steel bath containing heater, temperature
sensor and the overtemperature protection safety element. The shaking carriage is totally
removable.
The units are operated via a water protected foil keypad with integrated mains switch.
Microprocessor technology enables selection and storage of different temperature
values and operating times, and display of them in the LED-MULTI-DISPLAY. The selfoptimizing electronic PID-control circuit automatically adjusts the heat supply to the value
required by the bath.
The RS232C port permits modern process engineering without additional interface,
directly on-line, from the waterbath to your application equipment.
The overtemperature protection is a safety feature with a fixed safety value of 105 C. It
functions independent of the regulator circuit.
2. Operator responsibility – Safety instructions
The products of JULABO ensure safe operation when installed, operated, and maintained
according to common safety regulations. This section explains the potential dangers that may
arise when operating the circulator and also specifies the most important safety precautions to
preclude these dangers as far as possible.
The operator is responsible for the qualification of the personnel operating the units.
The personnel operating the units should be regularly instructed about the dangers involved
with their job activities as well as measures to avert these dangers.
5
Operator responsibility – Safety instructions
Make sure all persons tasked with operating, installing, and maintaining the unit have read
and understand the safety information and operating instructions.
When using hazardous materials or materials that could become hazardous, the unit may be
operated only by persons who are absolutely familiar with these materials and the unit.
These persons must be fully aware of possible risks.
If you have any questions concerning the operation of your unit or the information in this
manual, please contact us!
Contact:
Safety recommendations for the operator
You received a product conceived for industrial use. Nevertheless, avoid strikes to the
housing, vibrations, damages to the keypad foil (keys, display) or contamination.
Make sure the product is regularly checked for proper condition. Regularly check (at least
every 2 years) the proper condition of the mandatory, warning, prohibition and safety
labels.
Take care that the mains supply features a low impedance to avoid any negative affects on
the instrument being operated in the same mains.
This unit is designed for operation in a controlled electromagnetic environment. This means
that transmitting devices (e.g. cellular phones) should not be used in the immediate vicinity.
Magnetic radiation may influence other units with components susceptible to magnetic
fields (e.g. a monitor). We recommend to keep a minimum distance of 1 m.
Permissible ambient temperature: max. 40 °C, min. 5 °C.
Permissible relative air humidity: 50 % (40 °C).
Do not store in an aggressive atmosphere. Protect from contaminations.
Do not expose to sunlight.
JULABO GmbH
Eisenbahnstraße 45
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0 info@julabo.de
Fax +49 (0) 7823 / 24 91 www.julabo.de
Appropriate Operation
Only qualified personnel is authorized to perform configuration, installation, maintenance and
repairs of the water bath.
Routine operation can also be carried out by untrained personnel who should however be
instructed by trained personnel.
Use:
Insufficient ventilation may result in the formation of explosive mixtures. Only use the unit in
well ventilated areas. The unit is not for use in explosive atmosphere.
JULABO water baths have been designed for temperature application to water in a bath tank.
The bath may not be filled with flammable materials. Fire hazard!
Only use non-acid and non corroding bath fluids.
6
Shaking Water Baths
When using hazardous materials or materials that could become hazardous, the operator
must affix the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible:
1
2
or
2
Particular care and attention is necessary because of the wide operating range.
There are thermal dangers:
Burn, scald, hot steam, hot parts and surfaces that can be touched.
Warning label W00: Colors: yellow, black
Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)
Mandatory label M018: Colors: blue, white
Carefully read the user information prior to beginning operation.
Scope: EU
Semi S1-0701 Table A1-2 #9
Carefully read the user information prior to beginning operation.
Scope: USA, NAFTA
Warning label W26: Colors: yellow, black
Hot surface warning.
(The label is put on by JULABO)
2.1. Disposal
Do not dispose of the unit with household waste!
However, over the long operating period of the unit, disposal rules may change. Therefore, only
qualified personnel should handle the disposal.
Valid in EU countries
See the current official journal of the European Union – WEEE directive.
Directive of the European Parliament and of the Council on waste electrical
and electronic equipment (WEEE).
This directive requires electrical and electronic equipment marked with a
crossed-out trash can to be disposed of separately in an environmentally
friendly manner.
Contact an authorized waste management company in your country.
Disposal with household waste (unsorted waste) or similar collections of
municipal waste is not permitted!
7
Operator responsibility – Safety instructions
2.2. EC Conformity
Low voltage regulations with respect to legal harmonization of the member countries concerning
EMC guideline with respect to legal harmonization of the member countries concerning
The products described in the operating instructions conform to the
requirements of the following European guidelines:
electric devices for use within certain voltage limits.
electromagnetic compatibility.
JULABO GmbH
Eisenbahnstr. 45
77960 Seelbach / Germany
8
Shaking Water Baths
2.3. Warranty conditions
JULABO GmbH warrants its products against defects in material or in workmanship, when
used under appropriate conditions and in accordance with appropriate operating instructions
for a period of ONE YEAR.
Extension of the warranty period – free of charge
With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to
24 months, limited to a maximum of 10 000 working hours.
To apply for this extended warranty the user must register the unit on the JULABO web site
www.julabo.de, indicating the serial no. The extended warranty will apply from the date of
JULABO GmbH’s original invoice.
JULABO GmbH reserves the right to decide the validity of any warranty claim. In case of faults
arising either due to faulty materials or workmanship, parts will be repaired or replaced free of
charge, or a new replacement unit will be supplied.
Any other compensation claims are excluded from this guarantee.
9
Operator responsibility – Safety instructions
2.4. Technical data
Working temperature range °C 25 ... 99,9 25 ... 99,9
with water cooling °C 20 ... 99,9 20 ... 99,9
MULTI-DISPLAY (LED)
Resolution
Temperature stability K 0.2 0.02
Computer interface RS232 RS232
Electronic timer h:min 0:01 ... 9:59 0:01 ... 9:59
Heater wattage (at 230 V)
Heater wattage (at 115 V)
Adjustable shaking frequency rpm 20 ... 200 20 ... 200
Shaking stroke mm 15 / 25 15 / 25
Bath opening (W x L) cm 50 x 30 50 x 30
Usable bath depth cm 18 18
°C
kW
kW
SW22 SW23
0.1
2
1
0.1
2
1
Filling volume Liter 8 .... 20 8 .... 20
Dimensions W x L x H
(including cover)
Weight kg 21 22
Ambient temperature °C 5 ... 40 5 ... 40
Mains power connection
(230 V / 50-60 Hz)
Current draw (at 230 V) A 10 10
Mains power connection
(115 V / 60 Hz)
Current draw (at 115 V) A 11 11
All measurements have been carried out at: (DIN 12876)
rated voltage and frequency
ambient temperature: 20°C; operating temperature: 70°C;
bath liquid: water
cm
cm
V/Hz 207-253V/50-60Hz 207-253V/50-60Hz
V/Hz 103-127V/60Hz 103-127V/60Hz
70 x 35 x 26
70 x 35 x 43
70 x 35 x 26
70 x 35 x 43
10
Shaking Water Baths
Safety installations according to IEC 61010-2-010:
Excess temperature protection 105 °C - fixed value
Classification according to DIN 12876-1 class I
Alarm indication optical + audible (continuous tone)
Supplementary safety installations
High temperature warning function optical + audible (in intervals)
Low temperature warning function optical + audible (in intervals)
Timer audible (in intervals)
Environmental conditions according to EN 61 010, part 1:
Use only indoor.
Altitude up to 2000 m - normal zero.
Ambient temperature: +5 ... +40 °C (for storage and transportation)
Air humidity:
Max. rel. humidity 80 % for temperatures up to +31 °C,
linear decrease down to 50 % relative humidity at a temperature of +40 °C
Max. mains fluctuation of ±10 % are permissible.
Protection class according to EN 60 529 IP21
The unit corresponds to Class I
Overvoltage category II
Pollution degree 2
Caution:
The unit is not for use in explosive environment
Standards for interference resistance according to EN 61326-1
This unit is an ISM device classified in Group 1 (using high frequency for internal purposes)
Class A (industrial and commercial range).
11
Operating instructions
Operating instructions
3. Operating controls and functional elements
1
Mains power switch, illuminated
on
2
3
4
5
6
7
8
off
Working temperature
High temperature warning limit
Low temperature warning limit
Operating hours indicator key
Nominal value shaking frequency display key
Indication:
MULTI-DISPLAY (LED)
Temperature display optionally in C or F;
time display in h:m and shaking frequency.
The corresponding symbol will illuminate on selection.
Indicator light - Alarm red illuminated
Indicator light - Heating yellow illuminated
Cursors left/right
9
10
12
Edit keys (increase/decrease setting)
Enter key (store/quitting the audible signal)
Shaking Water Baths
8
11 Drainage screw
Connector for liquid level/cooling set (accessory)
12 Mains power cable with plug
13 T 10 A power supply fuses behind side cover
14 RS232C interface
15 Shaking carriage - totally removable
- 8 kg load-carrying capability
16 Surface for placement of items (fixtures)
17 Stroke bar with fastening screw
18 Washers
17
1
15
13
Safety notes for the user
4. Safety notes for the user
4.1. Explanation of safety notes
In addition to the safety warnings listed, warnings are posted throughout the
operating manual. These warnings are designated by an exclamation mark
inside an equilateral triangle. “Warning of a dangerous situation (Attention!
Please follow the documentation).”
The danger is classified using a signal word.
Read and follow these important instructions for averting dangers.
Warning:
Describes a possibly highly dangerous situation. If these instructions are not
followed, serious injury and danger to life could result.
Caution:
Describes a possibly dangerous situation. If this is not avoided, slight or
minor injuries could result. A warning of possible property damage may also
be contained in the text.
Notice:
Describes a possibly harmful situation. If this is not avoided, the product or
anything in its surroundings can be damaged.
4.2. Explanation of other notes
Note!
Draws attention to something special.
4.3. Safety instructions
Follow the safety recommendations to prevent damage to persons or property.
Important!
Indicates usage tips and other useful information.
Further, the valid safety instructions for working places must be followed.
Only connect the unit to a power socket with earthing contact
(PE – protective earth)!
The power supply plug serves as a safe disconnecting device from the line
and must always be easily accessible.
Operation is permitted with non-flammable liquids only.
Place the instrument on an even surface on a pad made of non-flammable
material.
14
Do not stay in the area below the unit.
Make sure you read and understand all instructions and safety precautions
listed in this manual before installing or operating your unit.
Shaking Water Baths
Check the filling level of the bath fluid from time to time. The heater must
always be fully covered with the bath fluid!
Never operate the unit without bath fluid in the bath.
Do not drain the bath fluid while it is hot!
Check the temperature of the bath fluid prior to draining (by
switching the unit on for a short moment for example).
Never operate damaged or leaking equipment.
Always turn off the unit and disconnect the mains cable from the power
source before performing any service or maintenance procedures, or before
moving the unit.
Transport the unit with care.
Sudden jolts or drops may cause damage in the interior of the unit.
Always empty the bath before moving the unit.
Never operate equipment with damaged mains power cables.
Observe all warning labels.
Never remove warning labels.
Condensation that could appear in and on other units near the water bath
may result in reduced operating safety.
Be careful when setting up and operating the water bath!
Always turn off the unit and disconnect the mains cable from the power
source before cleaning the unit.
Repairs are to be carried out only by qualified service personnel.
Some parts of the bath cover may become extremely warm during
continuous operation.
When lifting the bath cover, pay attention to hot steam!
Be careful when touching these parts!
Use safety glasses!
15
Preparations
8
5. Preparations
5.1. Installation
Caution:
The unit is not for use in explosive environment.
>80 mm
17
1
15
The installation site should meet the following conditions:
1. The base of the installation site should be level to ensure
proper functioning of the safety features.
2. The laboratory table, for example, should be sturdy
enough, to where the shaking frequency cannot cause
vibration of the table. Consider that the masses moved
may be in the order of several kg.
Keep a wall distance of minimum 80 mm.
Do not cover the ventilation openings on the floor and
rear side of the bath.
Installing and removing the shaking carriage:
Holding screw (17) can be removed without the use of
tools. Retain plastic washers (18) on both sides of the
push rod.
The shaking carriage can be completely removed.
Samples can be added to the carrier trays while outside
of the bath.
16
Then put the shaking carriage back into place. Use the
holding screw and plastic washers (18) to screw the
push rod onto the shaking carriage (15).
Caution:
The shaking frequency may cause a laboratory table to oscillate.
At operation, the vibration may cause items on the table top to fall off under
extreme unfavourable circumstances.
Carefully choose the setup location.
Shaking frequency is adjustable. After readjusting shaking frequency,
always observe other objects near the shaking water bath and remove them
to a different location if necessary.
Tighten the holding screw securely.
Shaking Water Baths
Caution:
Potential hazards from the samples
Proper use of shaking water baths includes immersion of samples contained in
test tubes, Erlenmeyer flasks, or other containers for the purpose of controlling
their temperature.
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
The user alone is responsible for the handling of these substances!
Always properly seal all sample containers.
Notice:
There is a danger of electrochemical oxidation or corrosion when using
test-tube racks or samples made of non-ferrous metal.
Avoid using these types of racks or samples.
Use only original JULABO test-tube racks.
5.2. Bath liquid
Recommended bath fluids: soft/decalcified water.
Caution:
Poor water quality may result in corrosion in the bath.
The quality of water (tap water) depends on local conditions.
Due to the high concentration of lime, hard water is not suitable for
temperature control because it leads to calcification in the bath.
Ferrous water can cause corrosion - even on stainless steel.
Chloric water can cause pitting corrosion.
Distilled and deionized water is unsuitable. Their special properties cause
corrosion in the bath, even in stainless steel.
JULABO takes no responsibility for damages caused by the selection of an
unsuitable bath fluid.
Please contact JULABO before using other than recommended bath fluids.
Do not use flammable bath fluids!
17
Preparations
5.3. Filling / Draining
Filling:
Maximum filling level: 6 cm below the bath rim
Minimum filling level: 7 cm (level approx. 3 cm above
surface (16) for the placement of items/fixtures)
Note:
The working filling level depends on size and number of the
items (fixtures) to be placed inside.
Fill to minimum level only. Insert the complemented shaking
carriage and correct the filling level (adding or removing liquid)
as required
Use the water bath cover to keep temperature losses to a
minimum:
Lift-up Makrolon cover see page 20
Draining:
Switch off the shaking water bath with the mains switch and
move the equipment to the table edge.
Place a suitable collecting bucket or tub underneath the
equipment for draining the used liquid.
To drain the liquid open the dainage screw (11) on the side
of the water bath.
After the liquid has been fully drained, securely tighten the
Warning:
There are thermal dangers when opening the bath cover:
Burn, scald, hot steam, hot parts and surfaces that can be touched.
Do not drain the bath fluid while it is hot!
drainage screw (11) again.
18
Check the temperature of the bath fluid prior to draining
(by switching the unit on for a short moment, for example).
5.4. Maintaining a constant water level / Counter cooling
Shaking Water Baths
For cooling tasks near the ambient air temperature the liquid
level/cooling set can be used for counter cooling.
By special pipe routing, cool faucet water is continuously
supplied to the water bath, while at the same time, the heated
water is drained via the overflow connection of the
Level/Cooling set.
A specific water flow rate of 100 ml/minute is sufficient to
compensate for the characteristic temperature.
Caution:
Securely attach all tubing to prevent slipping.
Observe the laws and regulations of the water distribution company valid in the
location where the unit is operated.
Use of the liquid level/cooling set for a continuous supply of
faucet water:
1. to keep the water level constant, especially for applications
up to the boiling point (supply of faucet water only in the
amount of evaporation losses).
2. for countercooling of cooling tasks near the ambient
surrounding temperature (cool faucet water is continuously
supplied to the water bath, while at the same time, the
heated water is drained via the overflow connection of the
liquid level/cooling set).
11 drainage screw on water bath
20 compensation reservoir
21 connecting sleeve
22 supply/drainage sleeve
23 overflow sleeve
24 adaptor screw for constant liquid level function
25 adaptor screw assy. for countercooling function and
simultaneous constant liquid level control
26 adjuster screw for filling level adjustment
19
Preparations
5.5. Accessories
Bath covers
Cooling installation / continous water supply
Recommendation:
Use the water bath cover to keep temperature losses to a
minimum. This is especially important for working temperatures
above 60 C.
Order No. Description
8 970 288 Lift-up Makrolon cover (to +80 °C)
8 970 268 Lift-up stainless steel cover (to +100 °C)
Recommendation:
For continious water supply and counter-cooling
Order No. Description
8 970 415 Liquid level/cooling set
8 970 416 Cooling coil
20
6. Operating procedures
6.1. Power connection
Caution:
Only connect the unit to a power socket with earthing contact (PE –
protective earth)!
The power supply plug serves as safe disconnecting device from the line
and must be always easily accessible.
Never operate equipment with damaged mains power cables.
Regularly check the mains power cables for material defects (e.g. for
cracks).
We disclaim all liability for damage caused by incorrect line voltages!
Check to make sure that the line voltage matches the supply
voltage specified on the identification plate.
Shaking Water Baths
7. Switching on
The unit performs a self-test. All segments of the 4-digit MULTI-
Adjustable parameters and temperature values are retained
When the shaking water bath is operating under remote control
Switching on:
Turn on the mains power switch.
DISPLAY (LED) and all indicator lights will illuminate.
Then the software version (example: n 1.3) appears.
Together with the display of the water bath temperature the
operating state is also displayed.
(Example: 18.6 C)
The monitor lamp
(on).
Notes:
and the electronic timer is reset to zero when the equipment is
switched off.
at the time of switchoff (connected to PC via
RS-232 interface connection), the MULTI-DISPLAY (LED) will
display the message „OFF“.
(see chapter 8.5. Setup for remote control )
illuminates when the heater is in operation
If shaking operation is not desired it can be switched off at
menu level. Select the menu level and activate the option SA
(see page 26).
21
Switching on
7.1. Setting the temperature
Display and adjustment of the working temperature:
Press the setpoint key .
The indicator light blinks and the value previously set appears
on the MULTI-DISPLAY (LED).
(example: 25.0 °C).
If no further key is pressed the display will return to show the
actual bath temperature after approx. 8 seconds.
Use the cursor keys to move left or right on the
display until the numeral you wish to change is blinking.
Use the increase/decrease arrows to change the
selected numeral (0, 1, 2, 3, ... 9).
Press enter to store the selected value
(example: 38.0 °C).
The working temperature is maintained constant after a short heatup time (e. g. 38.0 °C).
Notice:
When the working temperature is higher than 50 °C, it might happen that due to
strong production of steam there is considerable dripping on the inside of the lift-
up Makrolon cover. Some drops may fall directly into the material to be
tempered.
Always properly seal all sample containers.
7.2. Warning functions or temperature limit
More protection for your samples in the bath!
......
As soon as the actual temperature leaves one of the pre-adjusted
limits, this status is evaluated.
The high- and low-temperature limit can be evaluated in two ways
(see page 31).
1. As pure warning function with an acoustic signal in regular
intervals. (Signal - Pause)
2. As temperature limit by switching-off the heating and alarm.
22
Shaking Water Baths
Display and adjustment of over-/undertemperature:
Press the key
(example: 41 °C)
or
(example: 35 °C).
The indicator light blinks and the value previously set appears
on the MULTI-DISPLAY (LED).
If no further key is pressed the display will return to show the
actual bath temperature after approx. 8 seconds.
Use the cursor keys to move left or right on the
display until the numeral you wish to change is blinking.
Use the increase/decrease arrows to change the
selected numeral (0, 1, 2, 3, ... 9).
Press enter to store the selected value
Note:
The warning functions will be activated only after the bath
temperature has remained for at least 3 seconds within the
adjusted threshold values after the equipment is switched on.
23
Switching on
7.3. Adjustment of the shaking frequency
The shaking frequency is adjustable between 20...200 rpm. If
shaking operation is not desired it can be switched off at menu
level. Select the menu level and activate the option SA (see page
26)
Display and adjustment of the shaking frequency
Press the key .
The indicator light blinks and the value previously set appears
on the MULTI-DISPLAY (LED).
(example: 120 rpm).
If no further key is pressed the display will return to show the
actual bath temperature after approx. 8 seconds.
Use the cursor keys to move left or right on the
display until the numeral you wish to change is blinking.
Use the increase/decrease arrows to change the
selected numeral (0, 1, 2, 3, ... 9).
Press enter to store the selected value
Caution:
Danger of injury. Samples may fall over.
Do NOT reach in the shaking carriage during shaking operation. Danger of
injury!
Always use carrier trays in order to prevent sample containers from falling
over.
24
7.4. Electronic timer
Shaking Water Baths
..
The electronic timer enables adjustment of the operating time up
to a maximum of 9 hours and 59 minutes. Countdown then
commences to zero, at which time an acoustical time signal will
be issued in intervals
(double signal - pause).
- the equipment will not be switched off -
Display and adjustment of the operating time:
Press the key .
The indicator light blinks and and the MULTI-DISPLAY (LED)
will display the remaining operating time (example: 4.28 h:m).
If no further key is pressed the display will return to show the
actual bath temperature after approx. 8 seconds.
Use the cursor keys to move left or right on the
MULTI-DISPLAY (LED) until the numeral you wish to change is
blinking.
Use the edit keys to increase or decrease the
numeral value (0, 1, 2, 3, ... 9).
Press enter to store the value when the countdown will
commence. During that time the monitor lamp (control lamp)
will remain permanently illuminated.
When the operating time is expired an acoustical time signal is
issued in intervals.
Cancellation of the time signal:
Press enter to silence the time signal.
Notes:
1. Following switch-on of the equipment and after a power failure,
the timer will show 0:00 h:m.
2. When the equipment is operating remotely controlled the timer
is rendered inoperative.
25
Menu functions
8. Menu functions
Adjustment of parameters which, in most instances, need only be
adjusted once, are performed on the water bath at menu level.
1. Shaking operation On/Off
2. Circulator pump On/Off
(Only shaking water bath SW23).
3. MULTI-DISPLAY temperature display in C or F
4. ATC (absolute temperature calibration)
5. Switchover to remote controlled operation
6. Adjustment of interface parameters
7. Adjustment of the high and low temperature limit. Choice
between pure warning function or a temperature limit by
switching off the heating.
8.1. Shaking operation On/Off
Selecting/exiting the menu level.
Simultaneously
press the cursor key and enter .
1. Press the cursor key and enter at the same time.
2. Use the cursor keys to select the menu option
„shaking operation“
example: „SA1“ = shaking frequency ON.
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key .
The display now shows „SA0“ = shaking frequency OFF.
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8.2. Circulator pump on/off
Shaking Water Baths
Only shaking water bath SW23 feature a circulator pump.
The pump can be set to on and off at the menu level.
At working temperatures > 80 C the pump will switch off
automatically
1. Press and at the same time.
2. Use the cursor keys to select the menu option
PUMP
(example: „Pu1“ = Pump ON )
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key (example:
„Pu0“ = Pump OFF).
4. Press and at the same time.
8.3. Temperature indication in °C or °F
The working temperature can be displayed in the MULTI-DISPLAY
(LED) in C or F as desired.
1. Press and at the same time.
2. Use the cursor keys to select the menu option
„temperature display“
(example: „t C“ = temperature display in C).
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key . The display
now shows „t F“ = temperature display in F.
4. Press and at the same time.
Switchover to the selected display mode takes place automatically
upon leaving the menu level.
27
Menu functions
8.4. ATC - Absolute Temperature Calibration
ATC serves to compensate a temperature difference that might
Internal sensor (TF)
Measuring point(TM)
occur between circulator and a defined measuring point in the bath
tank because of physical properties.
The difference temperature is determined (T= TM - TT)
and stored as correcting factor (example T = -0.2 °C).
1. Press the cursor key and enter at the same time.
2. Use the cursor keys to select the menu option
„At0“.
Measuring point
3. With the edit keys select "At1" and then press
enter .
Enter the corrective value.
4. Using the cursor keys and the edit keys
set the correcting factor (example -0.20 °C) and then
press enter .
5. Press and at the same time.
The temperature on the measuring point rises to a temperature of
37.0 °C and is indicated on the
MULTI-DISPLAY (LED).
The ATC function stays activated until resetting to 00.0 °C.
Recommendation:
Use a calibrated temperature measuring instrument.
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8.5. Setup for remote control
Shaking Water Baths
If the shaking water bath is to be remotely controlled or monitored,
the parameter of the menu option REMOTE must be changed and
set from 0 to 1.
REMOTE 0 = Keypad control
1 = Remote control via RS232 interface
1. Press and at the same time.
2. Use the cursor keys to select the menu option
REMOTE
(display „r 0“).
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key (display „r 1“).
The shaking water bath will switch to the REMOTE „STOP“
condition and the MULTI-DISPLAY will show the message
„OFF“.
4. Press and at the same time.
29
Menu functions
8.6. Adjusting interface parameters
Correct data transmission takes place only when the interface
parameters of PC and water bath are identical.
1. Press and at the same time.
2. Use the cursor keys to select the desired menu
option
(BAUDRATE, PARITY, HANDSHAKE).
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key .
4. Press and at the same time.
Adjustable interface parameters
BAUDRATE 48 = 4800 bauds *
96 = 9600 bauds
PARITY 0 = no parity
1 = odd parity
2 = even parity *
HANDSHAKE
0 = Protocol Xon/Xoff (software handshake)
1 = without handshake *
Data bits = 7; Stop bit = 1 *
(*Factory setting)
Like all parameters which can be entered through the keypad,
interface parameters are stored in memory even after the circulator
is turned off.
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8.7. Evaluation of the temperature limits
Shaking Water Baths
The high- and low-temperature limit can be adjusted in two ways
(see page 22)
3. As pure warning function with an acoustic warning signal in
regular intervals.
Adjustment „Li 0“ – factory adjustment
4. As temperature limit by switching-off the heating. Adustment „Li
1“
The alarm is indicated by optical and audible signals
(continuous tone) and on the MULTI-DISPLAY (LED) appears
the error message "Error 01".
1. Press and at the same time.
2. Use the cursor keys to select the menu option
Limit. (example: „Li 0“).
3. Select the alternative state with the edit keys and
confirm the selection with the ENTER key (display „Li 1“).
4. Press and at the same time.
9. Safety installation (with shutdown function)
(excess temperature protection)
These safety installations is independent of the control circuit.
When the temperature of the bath liquid has reached the safety
temperature, a complete shutdown of the heater and pump (only
CW-models) is effected.
The alarm is indicated by optical and audible signals (continuous
tone) and on the MULTI-DISPLAY (LED) appears the error
message "Error 01".
31
Troubleshooting guide / Error messages
10. Troubleshooting guide / Error messages
+
Whenever the microprocessor electronics registers a failure, a
complete shutdown of the heater and circulation pump is performed.
The alarm light " " illuminates and a continuous signal tone
sounds.
Cause:
The waterbath is operated without bath liquid, or the liquid level
is insufficient
or
The adjusted temperature limit was exceeded or the temperature
fell below the limit.
Remedy: Replenish the bath tank with the bath liquid.
Control the adjustment of the temperature limit.
Get to safety the samples.
The wires of the working temperature sensor are interrupted or
short-circuited.
other errors
Heating circuit interrupted.
32
Short-circuit of triac.
Short-circuit in alarm relay.
60
1545
4 s
30
After eliminating the malfunction, press the mains power switch off
and on again to cancel the alarm state.
If the unit cannot be returned to operation, contact an authorized
JULABO service station.
Shaking Water Baths
Warning:
Danger of electric shock!
The exchanging of the fuses are to be carried out only by qualified
service personnel.
Before exchanging the fuses, turn off the mains power switch and disconnect
the power plug from the mains socket!
Only use fine fuses with a nominal value as specified.
Disturbances that are not indicated.
Mains fuses
Pull the mains plug from the power outlet before opening the
equipment!
The mains fuses are located behind side plate (13).
The side plate is fastend to the casing with 6 screws .
(Fine fuse T 10.0 A, dia. 5 x 20 mm)
Sicherungen
Fuses
Fusibles secteur
Pump motor overload protection
The pump motor is protected against overloading. After a short
cooling interval, the motor will automatically start running.
33
Troubleshooting guide / Error messages
10.1. Acoustical signals and their differentiation
Three different signals are generated by the sound
generator as follows:
- an alarm signal
- a warning signal
- a time signal
The signals can easily be recognized and differentiated, even from
a good distance. Required actions can be initiated immediately.
The Alarm signal is a continuous sound signal.
......
Heater and circulator pump (SW23 only) are completely and
permanently switched off.
(see page 31)
The warning signal is issued at regular intervals
(signal - pause - signal - pause).
The actual bath temperature is higher than the set overtemperature
value or lower than the set undertemperature value
(see page 22)
..
The time signal is issued in the intervals
(double signal - pause - double signal - pause).
Countdown of the adjusted operating time commences to zero,
after which a time signal is issued at intervals
(see page 25)
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11. Electrical connection
Shaking Water Baths
RS232C serial interface
This port can be used to connect a computer with an RS232C
cable for remote control of the waterbath.
Pin assignment:
Pin 1 RxD Receive Data
Pin 2 TxD Transmit Data
Pin 3 0 VD Signal GND
Use shielded cables only.
Accessories:
RS-232 interface connecting cable, terminated with 3-pin
Cinch plug and 9 hole subD socket. Length: 3.0 m.
Order No. 8 980 075
35
Remote control
12. Remote control
12.1. Communication with a PC or a superordinated data system
A suitable terminal program for communicating with a PC is:
Terminal.EXE (included with MS-Windows).
If the waterbath is put into remote control mode via the menu level,
the display will read "OFF" = REMOTE STOP. (see page 29).
The waterbath is now operated via the computer.
In general, the computer (master) sends commands to the
waterbath(slave). The waterbath sends data (including error
messages) only when the computer asks for it.
A transfer sequence consists of:
command
space ; Hex: 20)
parameter (the character separating decimals in a
group is the period)
end of file (; Hex: 0D)
The commands are divided into in or out commands.
in commands: asking for parameters to be displayed
out commands: setting parameters
The out commands are valid only in remote control mode.
36
Examples:
Command to set the working temperature T to 55.5 °C:
out_sp_00 55.5
Command to ask for the working temperature T:
in_sp_00
Response from the shaking water bath:
55.5
Shaking Water Baths
12.2. List of commands
Command Parameter Response of the shaking water bath
version none Number of software version(V X.xx)
status none Status message, error message (see below)
out_mode_05 0 STOP - returns the water bath to the „OFF“ state
out_mode_05 1 START - water bath is switched to the operating state
out_mode_08 0 Circulator pump „OFF“
out_mode_08 1 Circulator pump „ON“
out_mode_09 0 Shaking operation drive motor „OFF“
out_mode_09 1 Shaking operation drive motor „ON“
out_sp_00 xxx.x Set working temperature„T“
out_sp_02 xxx.x
out_sp_03 xxx.x
out_sp_16 xxx.x Set shaking frequency
in_sp_00 none Ask for working temperature „T“
in_sp_02 none
in_sp_03 none
in_sp_16 kein Ask for shaking frequency
in_pv_00 none Ask for actual bath temperature
in_pv_01 none Ask for the heater wattage being used
Set high temperature warning limit
Set low temperature warning limit
Ask for high temperature warning limit
Ask for low temperature warning limit
37
Remote control
12.3. Status messages
Message Description
01 MANUAL START Waterbath in keypad control mode.
02 REMOTE STOP Waterbath in „OFF“ state
03 REMOTE START Waterbath in remote control mode
12.4. Error messages
Message Description
-01 TEMP / LEVEL ALARM Safety temperature or low liquid level alarm
-03 EXCESS TEMPERATURE
WARNING
-04 LOW TEMPERATURE WARNING
-05 TEMPERATURE MEASUREMENT
ALARM
-07 I2C-BUS WRITE ERROR
-07 I2C-BUS READ ERROR
-07 I2C-BUS READ/WRITE ERROR
-08 INVALID COMMAND
-10 VALUE TOO SMALL
-11 VALUE TOO LARGE
High temperature warning „ „.
Low temperature warning „ „.
Error in measuring system
Internal error
Invalid command
Entered value too small
Entered value too large
-12 WARNING : VALUE EXCEEDS
TEMPERATURE LIMITS
-13 COMMAND NOT ALLOWED IN
CURRENT OPERATING MODE
38
Value lies outside the adjusted range for the high
and low temperature warning limits. But value is
stored.
Invalid command in current operating mode
13. Cleaning / repairing the unit
Caution:
Improper maintenance or repair can result in electric shock or damage to the
unit.
Repairs and any other work are to be carried out only by qualified service
personnel authorized by JULABO.
Always turn off the unit and disconnect the mains cable from the power
source before performing any service or maintenance procedures, or
before moving the unit.
Prevent humidity from entering into the water bath.
Do not use alcohol-based or solvent-based cleaning agents.
These cleaning agents will result in damage and cracks in the Makrolon
cover.
Cleaning:
For cleaning the bath tank and the immersed parts of the water
bath, use low surface tension water (e.g., soap suds).
Clean the outside of the unit using a wet cloth and low surface
tension water.
The JULABO Skaking Water Baths are designed for continuous
operation under normal conditions. Periodic maintenance is not
required.
Shaking Water Baths
Repairs:
Returning a unit:
The tank should be filled only with a bath fluid recommended by
JULABO. To avoid contamination, it is essential to change the bath
fluid from time to time.
Before asking for a service technician or returning a JULABO
instrument for repair, please contact an authorized JULABO service
station.
When returning the unit:
Clean the unit and, if necessary, decontaminate the unit in order
to avoid endangering service personnel.
Attach a short fault description.
During transport the unit has to stand upright. Mark the packing
correspondingly.
When returning a unit, take care of careful and adequate
packing.
JULABO is not responsible for damages that might occur from
insufficient packing.
JULABO reserves the right to carry out technical modifications with
repairs for providing improved performance of a unit.
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