Carrier CT2-29-TV Operating instructions

English
Operating
manual
Heating Immersion Circulator
MB
JULABO Labortechnik GmbH
Eisenbahnstraße 45
D-77960 Seelbach / Germany
( +49-7823 / 51-0
3 +49-7823 / 2491
š info@julabo.de
ü www.julabo.de
1.951.0300BE2
19510300.doc
06/04
Druck: 16.07.04
Contents
Operating manual
Operating instructions
Pages 2 to 11
Pages 12 to 47
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
principles of operating and possibilities of our circulators. For optimum utilization of all
functions, we recommend that you thoroughly study this manual prior to beginning
operation.
Quality Management System
W
e are
ISO 9001
2000
ce
rt if i e d
The JULABO Quality Management System:
Development, production and distribution of temperature
application instruments for research and industries conform to
the requirements according to DIN EN ISO 9001:2000.
Certificate Registration No. QA 051004008.
Unpacking and checking
Unpack the circulator and accessories and check for damages incurred during transit.
These should be reported to the responsible carrier, railway, or postal authority, and a
request for a damage report should be made. 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
2
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TABLE OF CONTENTS
Operating manual....................................................................................................... 5
Description............................................................................................................. 5
Operator responsibility – Safety recommendations .................................................. 6
EC Declaration of Conformity ................................................................................ 8
Warranty conditions ............................................................................................... 9
Technical specifications........................................................................................ 10
Operating instructions .............................................................................................. 12
1.
Operating controls and functional elements........................................................ 12
2.
Safety notes for the user.................................................................................... 13
3.
Preparations...................................................................................................... 14
3.1. Installation.................................................................................................... 14
3.2. Bath fluids.................................................................................................... 14
3.3. Temperature application to external systems .................................................. 16
3.3.1. Pump set............................................................................................... 16
3.3.2. Tubing.................................................................................................. 16
3.4. Countercooling ............................................................................................. 17
3.5. Adjusting the pump flow............................................................................... 18
4.
Operating procedures........................................................................................ 19
4.1. Power connection.......................................................................................... 19
4.2. Switching on / Start - Stop ............................................................................ 19
5.
Setting the temperatures............................................................................ 21
5.1. 1-setpoint mode ............................................................................................ 21
5.2. 3-setpoint mode ............................................................................................ 21
6.
Safety installations, warning functions....................................................... 23
6.1. Excess temperature protection....................................................................... 23
6.1.1. Early warning system, low level protection ............................................ 24
6.2. High and low temperature warning functions ................................................. 25
6.3. Limitation of the operating temperature range................................................ 26
6.4. Change-over of the warning function to shutdown function ............................ 27
7.
Menu functions ........................................................................................ 28
3
7.1. ATC Absolute Temperature Calibration, 3-point calibration ........................... 29
7.2.
7.3.
7.4.
7.5.
7.6.
Change-over of the
key mode ............................................................... 32
Remote control: activate – deactivate............................................................. 32
Interface - Baud rate, Handshake, Parity ........................................................ 33
Control parameters – Xp, Tv, Tn................................................................... 34
Reset............................................................................................................ 35
8.
Troubleshooting guide / Error messages ............................................................ 36
9.
Safety recommendations ................................................................................... 38
10. Electrical connections....................................................................................... 40
11. Remote control................................................................................................. 41
11.1. Setup for remote control............................................................................ 41
11.2. Communication with a PC or a superordinated data system ........................ 41
11.3. List of commands ..................................................................................... 42
11.4. Status messages ........................................................................................ 44
11.5. Error messages ......................................................................................... 44
12. JULABO Service – Online remote diagnosis ..................................................... 46
13. Cleaning the unit .............................................................................................. 47
4
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Operating manual
Description
JULABO circulators have been designed for temperature application to specific fluids in
a bath tank.
þ The circulators are operated via the splash-proof keypad. The
implemented microprocessor technology allows to set and to store
different values that can be indicated on the MULTI-DISPLAY (LED).
Three menu keys facilitate adjusting setpoints, warning and safety
functions and menu functions.
þ The PID temperature control adapts the heat supplied to the thermal
PID2
requirements of the bath.
þ Absolute Temperature Calibration (ATC3) provides a high temperature
stability in the bath. With the 3-point calibration an offset is adjusted at
three temperatures to ensure an accurate temperature pattern at the
ATC3
selected spot in the bath over the full temperature range.
þ Electrical connections:
RS232
The serial interface RS232 to allows modern process technology without
additional interface.
Alarm output for external alarm message or control of JULABO
refrigerating baths or solenoid valve (cooling water).
þ The excess temperature protection conforming to IEC 61010-2-010 is a
safety installation independent from the control circuit. This protection
can be indicated and set on the MULTI-DISPLAY (LED).
þ The early warning system for low level signals that bath fluid needs to
be refilled before the low level protection conforming to IEC 61010-2010 causes a complete shut-down of the main functional elements.
IEC
þ The circulator conforms to the relevant requirements specified by
EN
European guidelines.
DIN
JULABO circulators are not conceived for direct temperature application to
food and luxury articles or pharmaceutical and medico-technical products.
Direct temperature application means: Unprotected contact of the object
with the bath medium (bath fluid).
5
Operating manual
Operator responsibility – Safety recommendations
The products of JULABO Labortechnik GmbH warrant a safe operation if installation,
operation and maintenance is carried out according to common safety regulations. This
section informs you about potential dangers that may arise from operating the circulator
and also mentions the most important safety precautions
Persons:
The operator is responsible for the qualification of the personnel operating the units.
The operator should be constantly informed about the dangers involved with their job
activities as well as preventive actions.
Make sure all persons expected to carry out operation, installation and maintenance of
the unit read and understand the safety information and operating instructions.
If you have any questions concerning the operation of your unit or the information in
this manual, please contact us!
Contact
JULABO Labortechnik GmbH
Eisenbahnstrasse 45
D-77960 Seelbach / Germany
(
+49 7823 51-0
3
+49 7823 2491
š
info@julabo.de
ü
www.julabo.de
Handling:
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.
6
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Operation:
Only qualified personnel is authorized to perform configuration, installation,
maintainance and repairs of the circulator.
Routine operation can also be carried out by untrained personnel who should however
be instructed by trained personnel. The summarized user guidance (short manual) and
the specification table with information on individual parameters are sufficient for this.
Use:
The bath may not be filled with flammable materials. Fire hazard!
Only use recommended materials (bath fluids). Only use non-acid materials.
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 W26:
Colours:
yellow, black
Hot surface warning.
(The label is put on by JULABO)
Observe the instructions in the manuals for instruments of a different make that you
connect to the circulator, particularly the respective safety recommendations. Also
observe the pin assignment of plugs and technical specifications of the products.
Disposal:
The circulator contains a so-called back-up battery that supplies voltage to memory chips
when the unit is switched off. Do not dispose of the battery in domestic waste!
Depending on battery regulations in your country, you might be obliged to give back
used or defect batteries to gathering places.
7
Operating manual
EC Declaration of Conformity
Heating Immersion Circulator: MB
The products mentioned comply with the requirements outlined by the following
European guidelines:
Guideline 73/23/EEC of the Council of 19 February 1973 with respect to legal
harmonization of the member countries concerning electric devices for
use within certain voltage limits
Guideline 89/336/EEC of the Council of 3 May 1989 with respect to legal harmonization
of the member countries concerning electromagnetic compatibility
Guideline 98/37/EC of the European Parliament and the Council of 22 June 1998 for
harmonization of legal and administrative regulations of the member
countries with respect to machinery
The units conform to the following standards:
EN 1050: 1996-11 EN 292-1: 1991-09
EN 292-2: 1991-09
EN 61010-1: 2001 EN 61010-2-10: 1994-07 EN 60204-1: 1997-12
EN 563: 1994-06
EN 61326: 1997 + A1: 1998 + A2: 2001
JULABO Labortechnik GmbH
Eisenbahnstr. 45
D-77960 Seelbach / Germany
8
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Warranty conditions
JULABO Labortechnik 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 Labortechnik GmbH’s original invoice.
JULABO Labortechnik 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
Operating manual
Technical specifications
Working temperature range
Temperature stability
°C
°C
Temperature selection
via keypad
remote control via personal computer
Temperature indication
Resolution
°C
Absolute Temperature Calibration
°C
Temperature control
Heater wattage (at 230 V)
kW
Heater wattage (at 115V)
kW
Pump capacity
Flow rate
Pressure max.
MB
20 ... 100
±0.02
digital
indication on MULTI-DISPLAY (LED)
indication on monitor
MULTI-DISPLAY (LED)
0.1
±3
PID
2,0
1.0
l/min at 0 bar 10
bar at 0 liter 0.12
Electrical connections:
External alarm device 24-0 V DC / max. 25 mA
Computer interface RS232
Overall dimensions (WxDxH)
Usable bath depth
Weight
Ambient temperature
Mains power connection
or
Current input at 208 V / 230 V
cm 13x15x33
cm from 8 to 16.5
kg 4.0
°C
V/ Hz
V/Hz
A
5 ... 40
190 ... 253 / 50-60
100 ... 115 / 50-60
8/9
All measurements have been carried out at:
rated voltage and frequency
operating temperature: 70 °C
ambient temperature: 20 °C
bath fluid: water
Technical changes without prior notification reserved.
10
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Safety installations according to IEC 61010-2-010:
Excess temperature protection
adjustable from 0 °C ... 120 °C
Low liquid level protection
float switch
Classification according to DIN 12876-1
class I
Supplementary safety installations
Early warning system for low level
High temperature warning function
Low temperature warning function
Supervision of working sensor
Reciprocal sensor monitoring between
working and safety sensors
Alarm message
Warning message
float switch
optical + audible (in intervals)
optical + audible (in intervals)
plausibility control
difference >25 °C
optical + audible (permanent)
optical + audible (in intervals)
Environmental conditions according to IEC 61 010-1:
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
Protection class according to IEC 60 529
IP21
Power supply: corresponds to Class I; according to VDE 0106 T1
not for use in explosive atmosphere
Max. mains fluctuations of ±10 % are permissible.
Overvoltage category
II
Pollution degree
2
Standards for interference resistance EN 61326: 1997 + A1: 1998 + A2: 2001
Emitted interferences
The unit adheres to the threshold values for emitted interferences according
to table 3.
Interference resistance
The unit conforms to the requirements according to table B.1.
11
Operating instructions
Operating instructions
1.
Operating controls and functional elements
Front view
Rear view
16
15
RS 232
15
A
M
P
18
15
A
M
P
1
Mains power switch, illuminated
2
Start / stop key
3
Key for selecting the working temperature
4
Key for selecting the warning and safety values
5
Menu functions
6
7
Cursor keys
Edit keys
(left or right)
(increase or decrease)
8
Enter key
1) Store value / parameter
2) Next lower menu level
9
Escape key
1) Cancel entries
2) Return to a higher menu level
19
20
Note:
After about 30 seconds, the display automatically returns to the
standard display.
10
12
MULTI-DISPLAY (LED) temperature indication, menu indication
MB
11
Control indicator –Heating
12
Control indicator – Cooling (without function)
13
Control indicator – Alarm
14
Adjustable excess temperature protection according to
IEC 61010-2-010
Rear view
15
Socket: control cable of JULABO refrigerated circulator
or output for alarm messages
16
Interface RS232: remote control via personal computer
RS232
18
Mains fuses: Safety cutout 15 A
19
Threaded fitting (10 mm) for stand rod attachment
20
Mains power cable with plug
2.
Safety notes for the user
In addition to the safety warnings listed above, warnings are posted
throughout the 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 described according to an alarm keyword.
Read and follow these important instructions.
Warning:
Describes a possibly highly dangerous situation. If this is not avoided,
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 damage can 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.
13
Preparations
3.
3.1.
Preparations
Installation
21
22
3.2.
The heating immersion circulator is mounted using a
bath attachment clamp (21) designed for bath wall
thicknesses up to 26 mm.
Use the two sleeves (22) supplied with the unit to
reduce the immersion depth from 165 mm to 145 mm
(see drawing).
For use with glass vessels an upright stand rod
(order no. 8 970 020), available as optional accessory,
may be screwed in the threaded fitting (19).
Bath fluids
Caution:
No liability for use of other bath fluids!
Do not use flammable bath fluids!
Recommended bath fluids: deionized water
Notice:
Please contact JULABO before using other than recommended bath fluids.
JULABO takes no responsibility for damages caused by the selection of an
unsuitable bath fluid.
Unsuitable bath fluids are liquids which e.g.
• are very highly viscous
(much higher than 20 mm2 /s at the respective working temperature)
• have corrosive characteristics or
• tend to cracking.
14
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Caution:
The temperature controlling i.e. of fluids in a reactor constitutes normal
circulator practise.
We do not know which substances are contained within these vessels.
Many substances are:
• inflammable, easily ignited or explosive
• hazardous to health
• environmentally unsafe
i.e.: dangerous
The user alone is responsible for the handling of these substances!
The following questions shall help to recognize possible dangers and to
reduce the risks to a minimum.
• Are all tubes and electrical cables connected and installed?
Note:
sharp edges, hot surfaces in operation, moving machine parts, etc.
• Do dangerous steams or gases arise when heating?
Is an exhaust needed when working?
• What to do when a dangerous substance was spilled on or in the unit?
Before starting to work, obtain information concerning the substance
and determine the method of decontamination.
15
Preparations
3.3.
Temperature application to external systems
The circulator is used for temperature application to
external, closed systems (loop circuit).
3.3.1. Pump set
Order No. Description
8 970 140 Pump set
Accessories
24b
24a
23
21
Mounting the pump set:
• Remove the bath attachment clamp (21).
• Screw the pump set to the circulator, and then fix the
bath attachment clamp to the pump set.
• Slide the short piece of tubing supplied with the pump
set onto the short pump nozzle and the pump connector
(23).
• Thus the total immersion depth is reduced to 145 mm.
• Adjusting the pump for external bath circulation see
example D on page 18.
Connecting an external system:
• Unscrew the collar nuts from the pump connector (24a).
• Slide the tubing onto the pump connectors for feed and
return flow (24a, 24b).
Caution:
Securely attach all tubing to prevent slipping.
3.3.2. Tubing
Recommended tubing:
Order No. Length
8 930 008 2 m
CR® tubing
8 mm inner dia.
®
8 930 010 2 m
CR tubing
10 mm inner dia.
8 930 108 1 m
Viton tubing
8 mm inner dia.
8 930 110 1 m
Viton tubing
10 mm inner dia.
8 930 410 2 m
Insulation for tubing
8 mm or
10 mm inner dia.
16
Temperature range
-20 °C to 120 °C
-20 °C to 120 °C
-50 °C to 200 °C
-50 °C to 200 °C
-50 °C to 100 °C
MB
Warning: Tubing:
At high working temperatures the tubing used for temperature application
and cooling water supply represents a danger source.
A damaged tubing line may cause hot bath fluid to be pumped out within
a short time.
This may result in:
• Burning of skin
• Difficulties in breathing due to hot atmosphere
Safety recommendations
• Employ suitable connecting tubing.
• Make sure that the tubing is securely attached.
• Avoid sharp bends in the tubing, and maintain a sufficient distance
from surrounding walls.
• Regularly check the tubing for material defects (e.g. for cracks).
• Preventive maintenance: Replace the tubing from time to time.
3.4.
Countercooling
25b
25a
For applications near the ambient temperature, the
cooling coil (order no. 8 970 105) must be connected
to the water mains.
Mounting the cooling coil:
• Remove the bath attachment clamp (21).
• Screw the cooling coil to the circulator, and then
fix the bath attachment clamp to the cooling coil.
• Thus the total immersion depth is reduced to
145 mm.
21
Using tubing, connect the cooling coil (25a) to the tap
water supply, and lead the tap water in a sink through
the return connector (25b).
A specific water flow rate of 45 ml/minute is
sufficient to compensate for the characteristic
temperature.
Caution:
Securely attach all tubing to prevent slipping.
17
Preparations
3.5.
Adjusting the pump flow
Adjusting the pump flow
2 The pump flow is pre-adjusted in the factory and can be
modified to suit user requirements.
1
A
B
internal100 %
C
internal 20 %
external 80 %
D
18
• Using a screwdriver turn the screw (1) anti-clockwise
by 360 °.
• Using flat pliers turn the marking of the slide (2) to the
desired position.
• Tighten the screw.
Examples:
Internal applications in the bath
A 100 % internal bath circulation
(for large bath tanks)
B Reduced internal bath circulation
(for smooth surface of bath fluid)
External/internal applications
C 40 % external discharge,
60 % internal circulation
(for large bath tanks)
D 80 % external discharge,
20 % internal circulation
(for small bath tanks)
MB
4.
4.1.
Operating procedures
Power connection
Caution:
Connect the unit only to a grounded mains power socket!
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.
Deviations of ±10 % are permissible.
4.2.
Switching on / Start - Stop
Switching on:
• Turn on the mains power switch (1).
i The unit performs a self-test. All segments of the 4-digit
MULTI-DISPLAY (LED) and all indicator lights will
illuminate.
Then the software version (example: V1.00) appears. The
display „OFF“ or „R OFF“ indicates the unit is ready to
operate.
i The circulator enters the operating mode activated before
switching the circulator off:
keypad control mode (manual operation, factory setting)
or
remote control mode (operation via personal computer).
Start:
• Press the start/stop key.
.
The MULTI-DISPLAY (LED) indicates the actual bath
temperature. The circulating pump starts with a slight delay.
Stop:
• Press the start/stop key.
.
The MULTI-DISPLAY (LED) indicates the message "OFF".
19
Operating procedures
AUTOSTART ON / OFF
Œ
•
Keep depressed enter
and the start/stop key
and turn on the circulator with the mains power switch.
For a short while the MULTI-DISPLAY indicates the effective
start mode:
ð AUTOSTART on.
ð AUTOSTART off.
NOTE:
The circulator has been configured and supplied by JULABO
according to N.A.M.U.R. recommendations. This means for
the start mode, that the unit must enter a safe operating state
after a power failure (non-automatic start mode). This safe
operating state is indicated by „OFF“ or „rOFF“, resp. on the
MULTI-DISPLAY (LED). A complete shutdown of the main
functional elements such as heater and circulation pump is
effected simultaneously.
Should such a safety standard not be required, the
AUTOSTART function (automatic start mode) may be
activated, thus allowing the start of the circulator directly by
pressing the mains power switch or using a timer.
Warning:
For supervised or unsupervised operation with the AUTOSTART function,
avoid any hazardous situation to persons or property.
The circulator does no longer conform to N.A.M.U.R. recommendations.
Take care you fully observe the safety and warning functions of the
circulator.
20
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5.
Setting the temperatures
The function of the
key is configurable.
1. If the key is pressed, normally only one adjustable working
temperature is displayed (factory setting).
2. Press the
button to call up the menu
, then
assign a menu with 3 pre-adjustable setpoints to the
key. (see page 32)
è
5.1.
1-setpoint mode
Example: Actual value 1. Press the
key. The setpoint value instead of the actual
value is indicated on the display. The value can now be
changed.
Setpoint ê
2. Change the value: (Example: 30.0 °C to 65.0 °C)
è
• Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
è
Actual value ê
• Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
3. Press enter
è
to change the
to store the value.
i Setting can be carried out in the start/stop condition.
5.2.
3-setpoint mode
Factory settings:
25 °C
37 °C
70 °C
Press the
selection.
key to call up the menu for temperature
3 different working temperatures are adjustable. Their values
are freely selectable within the operating temperature range.
i Setting can be carried out in the start/stop condition.
21
Setting the temperatures
Example: Setting working temperature "t 3":
Identifier of a
menu window
1. Press the
key until the desired menu window is
indicated on the MULTI-DISPLAY (LED).
Example:
t 3
2. Press enter
to indicate the adjusted value for t 3 on
the MULTI-DISPLAY (LED).
Example:
70.0 °C (last digit blinks)
3. Change the value to 85 °C.
Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
to change the
Example:
.
Example: Indication of
4. Press enter
to store the selected value.
effective actual value
Press
to update the display immediately.
i In the >Start< condition, the circulator immediately uses
this value for control of the working temperature.
F
Notice: see chapter
6.3. Limitation of the operating temperature range
Example: Selecting the working temperature
• Press the
key until the desired menu window is
indicated on the MULTI-DISPLAY (LED).
• Press enter
twice.
The circulator uses the new working temperature value for
temperature control.
22
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6.
Safety installations, warning functions
Settings for the excess temperature protection according to
IEC 61010-2-010 and for the high and low temperature
warning functions are made
in a menu that is called up with the key
6.1.
.
Excess temperature protection
This safety installation is independent of the control circuit.
When the temperature of the bath fluid has reached the safety
temperature, a complete shutdown of the heater and pump is
effected.
The alarm is indicated by optical and audible signals
(continuous tone) and on the MULTI-DISPLAY (LED)
appears the error message "Error 14".
1. Press the key
2. Press enter
and call up the menu
.
.
The adjusted cut-out value is indicated on the MULTIDISPLAY (LED).
3. Set the new cut-out value using a screwdriver via the
MULTI-DISPLAY (LED). (Example: 88 °C)
4. Press
to update the display immediately.
Recommendation:
Set the excess temperature protection at 5 to 10 °C above the
working temperature setpoint.
23
Safety installations, warning functions
6.1.1. Early warning system, low level protection
This low level protection is independent of the
control circuit and is divided in two sections.
(patented)
1. Switch in stage 1 recognizes a defined
fluid level K.
An audible warning (interval tone) sounds and on
the MULTI-DISPLAY (LED) the message
"E 40" appears.
Refill bath fluid!
2. Switch in stage 2 recognizes a low fluid level L.
If stage 2 of the low level protection device
(according to IEC 61010-2-010) is triggered, a
complete shutdown of the heater and circulating
pump is effected.
A continuous alarm tone sounds and a message
>CODE 01< appears on the MULTI-DISPLAY
(LED).
Turn off the unit with the mains switch, refill bath fluid and
turn the unit on again!
3.
Float
4.
Circulating pump
5.
Heater
Important: Check the safety installations from time to time.
(see page 38)
Warning:
For refill always use the same bath fluid type that is already in the bath.
24
MB
6.2.
High and low temperature warning functions
Factory settings:
If for a sensitive temperature application task adherence to a
working temperature value (setpoint) is to be supervised, then
set high and low temperature warning values.
High temperature limit In the example below, the >Setpoint< of 85 °C is surrounded
t High 205 °C
by the values > t High < 87 °C and > t Low < 83 °C. The
electronics immediately registers when the actual temperature
attains a temperature out of the limits and it follows a reaction
Low temperature limit according to what is set in the menu item > Li < (Warning or
t Low -55 °C
Alarm).
(see chapter 6.4. Change-over of the warning function to
shutdown function).
1. Press the key
or
until the menu item
is displayed.
2. Press enter
to indicate the adjusted value on the
MULTI-DISPLAY (LED) (digit blinks).
3. Set value:
Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
4. Press enter
Press
to change the
to store the selected value.
to update the display immediately
25
Safety installations, warning functions
i The warning functions are only triggered when the actual
bath temperature, after start from the „OFF“ or „rOFF“
mode, lies within the set limits for 3 seconds.
Recommendation::
Set the high temperature warning value >t High< 5 °C to10 °C
above the working temperature setpoint
Set the low temperature warning value >t Low< 5 °C to 10 °C
below the working temperature setpoint
6.3.
Limitation of the operating temperature range
The limitation of the operating temperature range effects the
temperature setting under the menu called up with the
key. It is possible to adjust only working temperatures that lie
t HighSetpoint: 200 °C within the limit range set here.
Existing settings for Setpoint 1, 2, 3 and also for > t High <
and > t Low < (see page 25) are automatically defered within
t LowSetpoint: -50 °C the limit range.
Factory settings:
1. Press the key
or
until the menu item
is displayed.
2. Press enter
to indicate the adjusted value on the
MULTI-DISPLAY (LED) (digit blinks).
3. Set value:
Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
4. Press enter
Press
26
to change the
to store the selected value.
to update the display immediately.
MB
6.4.
Change-over of the warning function to shutdown function
Factory setting: Li 0
For the two menu items > t High < and > t Low < choose
between a warning message being signalled or a complete
shutdown of the main functional elements such as heater and
circulating pump being effected. (see page 25)
• Setting >Li / 0<
An audible warning (interval tone) sounds and a meassage
appears on the MULTI-DISPLAY (LED).
t High
t Low
or
t High
High temperature limit
t Low
Low temperature limit
• Setting >Li / 1<
A complete shutdown of heater and circulating pump is
effected.
An audible alarm (continuous tone) sounds and a message
appears on the MULTI-DISPLAY (LED).
t High
t Low
or
1. Press the key
.
until the menu item
is displayed.
2. Press enter
to indicate the adjusted parameter on the
MULTI-DISPLAY (LED) (digit blinks).
3. Select the parameter with the keys
4. Press enter
Press
(0 / 1).
to store the selected parameter.
to update the display immediately.
27
Menu functions
7.
Menu functions
The term „menu functions“ refers to adjustments such
as
Ø
ATC
• ATC - Absolute Temperature Calibration
ATC status
Type (Art): >1. point<, >2. point < or >3. point <
calibration
2 values per calibration point
ttx = Defined temperature value of the calibration
point. This value is automatically stored with
>Ctx< and can be indicated for control purposes.
Ctx = The „Calibration value“ is determined with
a temperature measuring device and stored under
menu item > Ctx <.
• Change-over the
Ø
Ø
Remote
Ø
Baudrate
Ø
Handshake
Ø
Parity
Ø
XP
Ø
Tn
Ø
Tv
Ø
Reset
28
key mode.
• Online communication, with adjustable interface
parameters
• PID temperature control, control parameters
• Factory setting
MB
7.1.
ATC Absolute Temperature Calibration, 3-point calibration
ATC serves to compensate a temperature difference that might
occur between circulator and a defined measuring point in the
bath tank because of physical properties.
Examples:
1-point calibration
Principle:
For ATC calibration, in steady state the bath temperature at
the location of the temperature sensor (T M) is determined
at the respective adjusted working temperature. This value
is then set on the circulator in the menu >ATCalibration<
under menu item >Calwert X<.
This can be a 1-point, 2-point or 3-point calibration.
°C
TT1
°C
3-point calibration
°C
TT1
°C
M = Temperature measuring instrument with
temperature sensor (TF)
B = Bath tank with T = circulator
TM = Temperature on measuring point
TT = Temperature on circulator
TT 1 = Original curve
1.
2.
The menu ATC - Absolute Temperature Calibration
is structured in 2 levels.
ATC status
Calibration type: 1-, 2-, 3-point calibration
2 values per calibration point
ttx = Temperature indication on circulator
Indicates the value of the calibration point entered last.
Ctx = Calibration temperature x
Input of the new value for the calibration curve.
29
Menu functions
Example: 3-point calibration
Examples:
TT = 40.0 °C
TM = 39.7 °C
TT = 75.0 °C
TM = 74.5 °C
TT = 90.0 °C
TM = 89.3 °C
In the temperature range of 80 °C to 160 °C the calibration
curve of the temperature sensor (TT ) should be assimilated to
the actual temperatures on the measuring point (T M ).
1. Calibration procedure:
Press
and set the first temperature value under e g.
for example (example 1st value = 40 °C).
2. Wait until this temperature is maintained constant in the
bath for about 5 minutes.
3. Call up the >ATC< menu:
Press the
button until the menu item
is
displayed and press enter
to switch to menu level 2.
4. Adjusting menu item >ATC Status<:
ATC status
Press enter
and indicate the parameter.
Select the parameter with the keys
(no / YES).
Press enter
to store the selected parameter.
>no<
Factory setting: YES
.
During the calibration process >no< needs to be set.
Continue: Press the
item >Art<.
button to call up the menu
>YES< The controller of the circulator uses the new
calibration curve. Set this parameter after the
calibration process.
Continue: Press
to quit the menu.
5. Determine the calibration type:
Example
(1-point, 2-point or 3-point calibration.)
Press the
button until the menu item
is
displayed and press enter
to indicate the parameter.
Select the parameter with the keys
(1, 2, 3).
Press enter
to store the selected parameter.
30
MB
i Depending on which calibration type is selected (1-point,
2-point or 3-point calibration) only the necessary menu
items are indicated.
For 1-point calibration: >tt1< and >Ct1<
For 2-point calibration: >tt1< and >Ct1<
>tt2< and >Ct2<
For 3-point calibration: >tt1< and >Ct1<
>tt2< and >Ct2<
>tt3< and >Ct3<
6.
From example on
page 30 for TM = Ctx
Setting and storing the value:
Press the
button until the menu item
= 39.7 °C
is displayed and press enter
to open the
input window.
Read the value of TM on the temperature measuring
device and enter the respective value.
= 74.5 °C
Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
= 89.3 °C
Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
Press enter
to change the
and the circulator also stores the value
of TT as value for
(40.00 °C).
The first of the 3 points is now calibrated.
i The values for >ttx< can only be displayed, but they cannot
be modified.
7.
Repeat the calibration procedure for 75 °C and 90 °C.
Store the values under
F
or
resp.
Notice:
In the ATC status > YES<, the ATC calibration curve always
affects the effective working temperature (also the one set via
the interface).
31
Menu functions
7.2.
Change-over of the
Factory setting: no
key mode
Normally, the
key is used to indicate only one adjustable
working temperature.
Press the
key, to call up a menu with 3 pre-adjustable
setpoints.
1. Press the
button until the menu item
is
displayed.
2. Press enter
to indicate the parameter.
3. Select the parameter with the keys
4. Press enter
to store the selected parameter.
>no<
Key
>YES< Key
in 1-setpoint mode
in 3-setpoint mode
Continue: Press
7.3.
(YES/no).
to quit the menu.
Remote control: activate – deactivate
The circulator is to be prepared for remote control by a
personal computer via the serial interface RS232: Set the
menu item >remote< from >no< to >YES<.
Factory setting: no
1. Press the
button until the menu item
is
displayed.
2. Press enter
to indicate the parameter.
3. Select the parameter with the keys
4. Press enter
>no<
32
to store the selected parameter.
No remote control via RS232
>YES<
Continue: Press
(YES/no).
to quit the menu.
MB
The display changes from
keypad control mode (manual operation) to
remote control mode (operation via personal computer).
7.4.
Interface - Baud rate, Handshake, Parity
Factory settings:
4.8 kBauds
2 = even
Hardware handshake
Example: 4.8 kbauds
To allow communication of the circulator with a PC or a
superordinated process control system take care the interface
parameters of both units match.
Adjustable interface parameters
Baud rate
4.8 = 4800 bauds
9.6 = 9600 bauds
19.2 = 19200 bauds
38.4 = 38400 bauds
Parity
Example: 2 = even
0 = no Parity
1 = odd
2 = even
Handshake
0 = Xon/Xoff protocol software handshake
1 = Protocol RTS/CTS hardware handshake
Data bits = 7; Stop bits = 1
1. Press the
button until the desired menu item is
displayed.
2. Press enter
to indicate the parameter.
3. Select the parameter with the keys
4. Press enter
.
to store the selected parameter.
33
Menu functions
7.5.
Control parameters – Xp, Tv, Tn
The control parameters preset in factory are in most cases
adequate for achieving an optimum temperature pattern for the
samples requiring temperature application.
Each parameter may be manually set via the keypad if
necessary, to allow optimum control performance.
Proportional range >Xp<
Setting range:
0.1 ... 99.9
The proportional range is the range below the selected
temperature value in which the control circuit reduces the
heating power from 100 % to 0 %.
Resetting time >Tn< (Integral component)
Setting range::
1 ... 9999
Compensation of the remaining control deviation due to
proportional regulation. An insufficient resetting time may
cause instabilities to occur. Excessive resetting time will
unnecessarily prolong compensation of the control difference.
Lead time >Tv< (Differential component)
Setting range:
0 ... 99
The differential component reduces the control settling time.
An insufficient lead time will prolong the time required to
compensate for disturbance effects and cause high
overshooting during run-up. An excessive lead time could
cause instabilities (oscillations) to occur.
1. Press the
button until the desired menu item is
displayed.
2. Press enter
to indicate the parameter.
3. Set value:
Use the cursor keys
to move left or right on the
display until the numeral you wish to change blinks.
Use the increase/decrease arrows
selected numeral (-, 0, 1, 2, 3, ... 9).
4. Press enter
34
to change the
to store the selected value.
MB
Optimization instructions for the PID control parameters:
optimum setting
The heat-up curve reveals inappropriate control
settings.
°C
t
Inappropriate settings may produce the following heat-up curves:
Xp too low
Tv/Tn too low
°C
°C
t
t
Xp too high or Tv too high
°C
Tv/Tn too high or Xp too high
°C
t
7.6.
t
Reset
Use this to reset all values to factory setting.
Factory setting: no
1. Press the
button until the menu item
is
displayed.
2. Press enter
3. Press the keys
to indicate the parameter (no).
to select the parameter (YES).
4. Press enter
to confirm the reset.
After the reset is carried out, the parameter is automatically
set to >no<.
35
Troubleshooting guide / Error messages
8.
Troubleshooting guide / Error messages
U
+
Alarm with a complete shutdown of the unit
Whenever the microprocessor electronics registers a failure, a
complete shutdown of the heater and circulating pump is performed.
The alarm light „ “ illuminates and a continuous signal tone
sounds. The MULTI-DISPLAY (LED) indicates the cause for the
alarm in form of a code.
Warning without a complete shutdown of the unit
The MULTI-DISPLAY (LED) indicates the cause for the warning in
form of a code and an acoustic signal sounds in regular intervals.
These messages appear every 10 seconds.
Press enter
to quit the audible signal.
• The circulator is operated without bath fluid, or the liquid level is
insufficient. Replenish the bath tank with the bath fluid.
• Tube breakage has occured (insufficient filling level due to
excessive bath fluid pumped out). Replace the tubing and
replenish the bath tank with the bath fluid.
• The float is defect (e. g., because damaged in transit). Repair by
authorized JULABO service personnel.
• During the self-test after switch-on a short-circuit is registered
between pin 2 and pin 4 of the control cable or the control cable
is interrupted during operation.
Reconnect the cable or eliminate the short-circuit.
• Excess temperature warning or
Excess temperature alarm with a complete shutdown of the main
functional elements being effected.
Warn type: >Li 0 = Warning< or > Li 1 = Alarm<
• Low temperature warning or
Low temperature alarm with a complete shutdown of the main
functional elements being effected.
Warn type: >Li 0 = Warning< or > Li 1 = Alarm<
36
MB
• Cable of the working temperature sensor interrupted or shortcircuited.
• Defect of the working or excess temperature sensor.
Working temperature and excess temperature sensors report a
temperature difference of more than 25 °C.
• Other errors (I2C-BUS errors)
• Error in A/D converter
• Excess temperature sensors defect.
• The excess temperature value lies below the working temperature
setpoint. Set the excess temperature to a higher value.
i Error messages 20 to 25 only appear in combination with refrigerating machines!
• Cooling of the condenser is affected. Clean air-cooled condenser.
Check the flow rate and cooling water temperature on watercooled condenser.
• Compressor stage 1 does not work.
After a short cooling interval, the compressor motor will be
automatically reconnected and the message "CODE 21" no
longer appears.
• Compressor stage 2 does not work.
• Cooling compressor overload protection
The motor of the cooling compressor is equipped with an
overload protector, which will be activated by excessive
temperature in the capsule or by excessive current consumption.
• Causes for motor disconnection:
- poor air circulation
- small distance to walls
- dirt accumulated on condenser
- high ambient temperature
- switch-off and on for short intervals
• Excess temperature in stage 1 of the compressor.
• Excess temperature in stage 2 of the compressor.
• Short-circuit in the control cable for the refrigerating machine
during self-test.
37
Safety recommendations
• Cable of the excess temperature sensor interrupted or shortcircuited.
• The early warning system for low level signals a critical fluid
level.
Replenish the bath tank with the bath fluid.
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.
Special message „CONFIGURATION ERROR“
The configuration of the circulator does not conform to its present
use.
Press enter
to automatically perform a single modification of
the configuration.
Then contact an authorized JULABO service station.
Disturbances that are not indicated.
Pump motor overload protection:
The pump motor is protected against overloading. After a short
cooling interval, the motor will automatically start running.
15
A
M
P
9.
Mains fuses
The mains fuses on the rear of the unit are safety cutouts – 15A.
Safety recommendations
Follow the safety recommendations to prevent damage to persons or
property. Further, the valid safety instructions for working places must be
followed.
38
MB
• Connect the unit only to a grounded mains power socket!
• Operation is permitted with non-flammable liquids only.
• Place the instrument on an even surface on a pad made of noninflammable material.
• 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.
• Observe the fire point of the bath medium used.
The excess temperature protection should be set at least 25 °C below
the fire point.
• Never operate the unit without bath fluid in the bath.
• Pay attention to the thermal expansion of bath oil during heating to
avoid overflowing of the fluid.
• Prevent water from penetrating into the hot bath oil.
• Exercise caution when emptying hot bath fluids!
Check the temperature of the bath fluid prior to draining (by
switching the unit on for a short moment for example).
• Observe the limited working temperature range when using
plastic bath tanks.
• Employ suitable connecting tubing.
Make sure that the tubes are securely attached.
• 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.
• Always empty the bath before moving the unit.
• Never operate equipment with damaged mains power cables.
• Some parts of the bath cover and the pump connections may become
extremely warm during continuous operation. Therefore, exercise
particular caution when touching these parts.
Notice:
Check the safety installations at least twice a year!
• Excess temperature protection according to IEC 61010-2-010
With a screwdriver turn back the adjustable excess temperature
protection until the shut-down point (actual temperature).
• Low level protection according to IEC 61010-2-010
To check the function of the float, it can be manually lowered with a
screwdriver for example.
39
Electrical connections
10. Electrical connections
Notice:
Use shielded cables only.
The shield of the connecting cable is electrically connected to the plug
housing.
The unit ensures safe operation if connecting cables with a maximum
length of 3 m are used. The use of longer cables does not affect proper
performance of the unit, however external interferences may have a
negative impact on safe operation.
/ Control output
The T connector may be used for control of JULABO
refrigerated circulators or as output for alarm messages.
2
4
1
Circuit:
5
3
RS232C
Operation
= relay powered
Alarm = relay not powered
Pin assignment:
Pin
Signal
1
+24 V (I max. current 25 mA)
2
0V
3
Alarm relay
4
Reserved - do not use!
5
Cooling pulse
RS232 serial interface
This port can be used to connect a computer with an RS232
cable for remote control of the circulator.
Pin assignments RS232:
Pin 2
RxD
Receive Data
Pin 3
TxD
Transmit Data
Pin 5
0V
Signal GND
Pin 6
DTR
Data terminal ready
Pin 7
RTS
Request to send
Pin 8
CTS
Clear to send
RS232 interface cable 9-pin / 9-pin, 2.5 m
Order No.: 8 980 073
40
MB
11. Remote control
11.1. Setup for remote control
• Check the interface parameters for both interfaces (on
circulator and PC) and make sure they match.
(Serial interface - see page 33)
RS232C
F
• Set the menu item >Remote< from >no< to >YES<.
(see page 32).
• Connect both units with an interface cable.
Like all parameters which can be entered through the keypad,
interface parameters are stored in memory even after the circulator
is turned off.
11.2. Communication with a PC or a superordinated data system
If the circulator is put into remote control mode via the menu item
>Remote<, the MULTI-DISPLAY (LED) will read „R -OFF-„ =
REMOTE STOP. The circulator is now operated via the computer.
In general, the computer (master) sends commands to the
circulator (slave). The circulator sends data (including error
messages) only when the computer sends a query.
F
In remote control mode: After a power interruption the order to
start and all values which have to be adjusted must be resent from
the personal computer via the interface.
AUTOSTART is not possible.
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
41
Remote control
F
The out commands are valid only in remote control mode.
Examples:
Command to set the working temperature >t 1< to 55,5 °C:
out_sp_00 ⇔ 55.5↵
Command to ask for the working temperature >t 1<:
in_sp_00↵
Response from the circulator:
55.5↵
11.3. List of commands
out commands: Setting parameters or temperature values.
Command
Parameter
Response of circulator
version
status
None
none
Number of software version (V X.xx)
Status message, error message (see page 44 )
out_mode_01
out_mode_01
out_mode_01
out_mode_05
out_mode_05
0
1
2
0
1
Use working temperature >t 1<
Use working temperature >t 2<
Use working temperature >t 3<
Stop the unit = R –OFF-.
Start the unit.
out_sp_00
out_sp_01
out_sp_02
out_sp_03
out_sp_04
out_sp_07
xxx.xx
xxx.xx
xxx.xx
xxx.xx
xxx.xx
x
Set working temperature. „t 1“
Set working temperature. „t 2“
Set working temperature. „t 3“
Set high temperature warning limit „t High“
Set low temperature warning limit „t Low“
Set the pump pressure stage. (1 ... 4)
out_par_06
out_par_07
out_par_08
xxx
xxx
xxx
Xp control parameter of the internal controller.
Tn control parameter of the internal controller.
Tv control parameter of the internal controller.
42
MB
in commands: Asking for parameters or temperature values to be displayed.
Command
in_pv_00
in_pv_01
in_pv_03
in_pv_04
Parameter
none
none
none
none
Response of circulator
Actual bath temperature.
Heating power being used (%).
Temperature value registered by the safety sensor.
Setpoint temperature („SafeTemp“) of the excess
temperature protection
in_sp_00
in_sp_01
in_sp_02
in_sp_03
in_sp_04
in_sp_07
none
none
none
none
none
none
Working temperature „t 1“
Working temperature „t 2“
Working temperature „t 3“
High temperature warning limit
Low temperature warning limit
Pump pressure stage
in_par_01
in_par_02
in_par_03
in_par_06
in_par_07
in_par_08
none
none
none
none
none
none
Te - Time constant of the external bath.
Si - Internal slope
Ti - Time constant of the internal bath.
Xp control parameter of the internal controller.
Tn control parameter of the internal controller.
Tv control parameter of the internal controller.
in_mode_01
none
Selected setpoint:
0 = Setpoint „t 1“
1 = Setpoint „t 2“
2 = Setpoint „t 3“
in_mode_05
none
Circulator in Stop/Start condition:
„t High“
„t Low“
0 = Stop
1 = Start
43
Remote control
11.4. Status messages
Status messages
00 MANUAL STOP
Description
Circulator in „OFF“ state.
01 MANUAL START
Circulator in keypad control mode.
02 REMOTE STOP
Circulator in „r OFF“ state.
03 REMOTE START
Circulator in remote control mode.
11.5. Error messages
Error messages
Description
-01 LOW LEVEL ALARM
Low liquid level alarm.
-02 REFRIGERATOR ALARM
Control cable of the refrigerated circulator or
MVS solenoid valve controller short-circuited or
interrupted.
-03 EXCESS TEMPERATURE
WARNING
-04 LOW TEMPERATURE
WARNING
-05 WORKING SENSOR
ALARM
-06 SENSOR DIFFERENCE
ALARM
High temperature warning.
-07 I2C-BUS ERROR
-08 INVALID COMMAND
-09 COMMAND NOT
ALLOWED IN CURRENT
OPERATING MODE
-10 VALUE TOO SMALL
-11 VALUE TOO LARGE
-12 TEMPERATURE
MEASUREMENT ALARM
44
Low temperature warning.
Working temperature sensor short-circuited or
interrupted.
Sensor difference alarm.
Working temperature and safety sensors report a
temperature difference of more than 25 °C.
Internal error when reading or writing the I2C
bus.
Invalid command.
Invalid command in current operating mode.
Entered value too small.
Entered value too large.
Error in A/D converter.
MB
Error messages
Description
-13 WARNING : VALUE
EXCEEDS TEMPERATURE
LIMITS
Value lies outside the adjusted range for the high
and low temperature warning limits. But value is
stored.
-14 EXCESS TEMPERATURE
PROTECTOR ALARM
Excess temperature protection alarm
-20 WARNING: CLEAN
CONDENSOR OR CHECK
COOLING WATER CIRCUIT
OF REFRIGERATOR
-21 WARNING: COMPRESSOR
STAGE 1 DOES NOT WORK
Cooling of the condenser is affected.
Clean air-cooled condenser.
Check the flow rate and cooling water
temperature on water-cooled condenser.
Compressor stage 1 does not work.
-22 WARNING: COMPRESSOR
STAGE 2 DOES NOT WORK
-23 WARNING: HIGH
TEMPERATURE ON
COMPRESSOR STAGE 1
Compressor stage 2 does not work.
Excess temperature on compressor stage 1.
-24 WARNING: HIGH
Excess temperature on compressor stage 2.
TEMPERATURE ON
COMPRESSOR STAGE 2
-25 REFRIGERATOR WARNING Error in the refrigerating machine.
-30 CONFIGURATION ERROR:
CONFIRM BY PRESSING
<ENTER> ON CIRCULATOR
The configuration of the circulator does not
conform to its present use.
Press enter
to automatically perform a
single modification of the configuration.
-33 SAFETY SENSOR ALARM
Excess temperature sensor short-circuited or
interrupted.
-40 NIVEAU LEVEL WARNUNG Low liquid level warning in the internal
reservoir.
45
JULABO Service – Online remote diagnosis
12. JULABO Service – Online remote diagnosis
JULABO circulators of the HighTech series are equipped with a
so-called black box. This box is implemented in the controller and
records all significant data for the last 30 minutes.
In case of a failure, this data can be read out from the unit by using
special software. The respective program is available for free
download from www.julabo.de \ EasyBlackBox.
• Installation is easy and carried out step by step.
Please observe the instructions.
• Data read-out is possible in the conditions
„OFF“, „R OFF“ or „ALARM“.
• Connect the circulator to the computer using an
interface cable.
• Start the EasyBlackBox program.
The program asks for the used port (COM1, ......) and
the baud rate of the unit.
You do not have this information on hand? Simply try
it out!
The program keeps on sending this request until the
actually used port and correct baud rate are entered.
• Data is read out and shown on the
monitor divided in the sections
>Einstellungen/Settings<,
>Alarmspeicher/Alarms stored<,
>Blackbox<
ç see example
• After pressing >Speichern/Save< a text
file is compiled. The program proposes a
filename >C:\model description and barcode no.<.
Modifications are possible.
• E-mail this file to service@julabo.de,
JULABO's service department. JULABO
is thus able to provide rapid support.
46
MB
13. Cleaning the unit
Caution:
Before cleaning the unit, disconnect the power plug from the mains socket!
Prevent humidity from entering into the circulator.
For cleaning the bath tank and the immersed parts of the circulator, 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 circulator is designed for continuous operation under normal
conditions. Periodic maintenance is not required.
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.
Repairs
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 in order to avoid any harm to the 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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