Julabo LC6 User manual

19515220.DOC 15.03.2011
Operating Manual
Programmable Controller
LC6
Printed in Germany
Changes without prior notification reserved
1.951.5220 03/11
JULABO Labortechnik GmbH
77960 Seelbach / Germany
+49 (0) 7823 / 51-0
+49 (0) 7823 / 24 91
|[email protected]
Þwww.julabo.de

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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 9001:2008. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the circulator 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.

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TABLE OF CONTENTS
Operating manual .............................................................................................................................5
1. Intended use ..........................................................................................................................5
1.1. Description .........................................................................................................................5
2. Operator responsibility – Safety recommendations ...............................................................5
2.1. Disposal .............................................................................................................................7
2.2. EC Conformity....................................................................................................................8
2.3. Warranty conditions............................................................................................................8
2.4. Technical specifications .....................................................................................................9
Operating instructions.....................................................................................................................11
3. Safety notes for the user......................................................................................................11
3.1. Explanation of safety notes..............................................................................................11
3.2. Explanation of other notes................................................................................................11
3.3. Safety recommendations..................................................................................................11
4. Operating controls and functional elements.........................................................................13
5. Operating procedures ..........................................................................................................15
5.1. Installation........................................................................................................................15
5.2. Connecting a heating device............................................................................................15
5.3. Connecting the temperature sensors...............................................................................16
5.4. Controlling an intermittent cooling water supply...............................................................16
5.5. Applications......................................................................................................................17
6. Operating procedures ..........................................................................................................19
6.1. Power connection.............................................................................................................19
6.2. Switching on / Selecting the language .............................................................................19
7. Manual operation .................................................................................................................20
7.1. Start - Stop.......................................................................................................................20
7.2. Setting the temperatures..................................................................................................20
7.3. Warning functions ............................................................................................................21
7.4. Setting the safety temperature (with shutdown function) .................................................22
7.5. Internal / external control..................................................................................................23
8. Menu functions.....................................................................................................................24
8.1. Configuration....................................................................................................................25
8.2. Control parameters...........................................................................................................28
8.3. Start of a profile................................................................................................................29
8.4. Integrated programmer.....................................................................................................32

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8.5. Analog inputs/outputs.......................................................................................................35
8.6. Limits................................................................................................................................38
8.7. Interface ...........................................................................................................................38
8.8. Sensors............................................................................................................................39
9. Troubleshooting guide / Error messages.............................................................................40
10. Electrical connections ..........................................................................................................41
11. Remote control.....................................................................................................................44
11.1. Setup for remote control...............................................................................................44
11.2. Communication with a PC or a superordinated data system .......................................45
11.3. List of commands.........................................................................................................46
11.4. Status messages / error messages..............................................................................49
12. Cleaning / repairing the unit.................................................................................................50

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Operating manual
1. Intended use
Fulfilling its principle task, reliable temperature control and measurement, the LC6 temperature
controller also implements safety and monitoring functions, particularly in the areas of chemical
research and quality control. The sophisticated capabilities of the unit allow wide application with
electrical heating devices such as
heating hoods, heating baths,
heating pads and bandages,
water and oil baths.
JULABO Temperature controllers 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
Setting is rapid and simple using the keypad with its easy to learn symbols. Keypad is splash-
proof, easily cleaned and ergonomically designed.
The microprocessor technology allows four temperature values to be stored and indicated on the
DIALOG-DISPLAY (LCD): working temperatures T1 and T2, high and low temperature warning
limits.
The safety value for excess temperature protection, a safety installation independent from the
control circuit, is adjustable on the front with simultaneous indication on the MULTI-DISPLAY
(LED).
The RS232/RS485 port permits modern process engineering without additional interface, directly
on-line, from the circulator to your application equipment.
Besides the digital interface, additionally analog connectors are provided, such as for
Pt100 external sensor, analog programmer input, temperature recorder output and others.
2. Operator responsibility – Safety recommendations
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.
¾The operator is responsible for the qualification of the personnel operating the units.
¾The personnel operating the units should be regularly instructed about the dangers involved
with their job activities as well as measures to avert these dangers.
¾Make sure all persons tasked with operating, installing, and maintaining the unit have read and
understand the safety information and operating instructions.
¾When using hazardous materials or materials that could become hazardous, the circulator may
be operated only by persons who are absolutely familiar with these materials and the
circulator. These persons must be fully aware of possible risks.

Operator responsibility – Safety recommendations
6
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
77960 Seelbach / Germany
Tel. [phone] / 51-0 [email protected]
Fax [phone] / 24 91 www.julabo.de
Safety instructions for the operator:
¾You have received a product designed for industrial use. Nevertheless, avoid strikes to the
housing, vibrations, damage to the operating-element panel (keypad, display), and
contamination.
¾Make sure the product is checked for proper condition regularly (depending on the conditions
of use). Regularly check (at least every 2 years) the proper condition of the mandatory,
warning, prohibition and safety labels.
¾Make sure that the mains power supply has low impedance to avoid any negative effects on
instruments being operated on the same mains.
¾This 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 affect other devices with components sensitive to magnetic fields
(e.g., monitors). We recommend maintaining a minimum distance of 1 m.
¾Permissible ambient temperature: max. 40 °C, min. 5 °C.
¾Permissible relative humidity: 50% (40 °C).
¾Do not store the unit in an aggressive atmosphere.
¾Protect the unit from contamination.
¾Do not expose the unit to sunlight.
Appropriate operation
Only qualified personnel is authorized to perform configuration, installation, maintenance and
repairs of the unit.
Routine operation can also be carried out by untrained personnel who should however be
instructed by trained personnel.
Use:
The bath can be filled with flammable materials. Fire hazard!
There might be chemical dangers depending on the bath medium used.
Observe all warnings for the used materials (bath fluids) and the respective instructions (safety
data sheets).
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.
Only use recommended materials (bath fluids). Only use non-acid and non corroding materials.
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:

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1
Warning label W00: Colors: yellow, black
Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)
2
or
Mandatory label M018: Colors: blue, white
Carefully read the user information prior to beginning operation.
Scope: EU
2
Semi S1-0701 Table A1-2 #9
Carefully read the user information prior to beginning operation.
Scope: USA, NAFTA
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: Colors: 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.
2.1. Disposal
Valid in EU countries
Directive 2002/96/EC of the European Parliament and of the Council of 27
January 2003 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!

Operator responsibility – Safety recommendations
8
2.2. EC Conformity
The products described in the operating instructions conform to the requirements of
the following European guidelines:
Low voltage regulations with respect to legal harmonization of the member countries concerning
electric devices for use within certain voltage limits.
EMC guideline with respect to legal harmonization of the member countries concerning
electromagnetic compatibility.
JULABO Labortechnik GmbH
Eisenbahnstr. 45
77960 Seelbach / Germany
2.3. 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.

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2.4. Technical specifications
LC6
Adjustable temperature range °C -100 ... 400
Display accuracy % ±0.5 ±1Digit
Temperature stability °C >±0.03
Temperature selection digital
via keypad indication on DIALOG-Display (LCD)
remote control via personal computer indication on monitor
Temperature indication MULTI-DISPLAY (LED)
DIALOG-DISPLAY (LCD)
Resolution °C 0.01
Absolute Temperature Calibration
ATC INT °C ±9.99
ATC EXT °C ±9.99
Temperature control ICC - Intelligent Cascade Control, self tuning
parameters for control and modification
Electrical connections:
Computer interface RS232 or RS485
Programmer input 0 to 10 V / 0 to 20 mA
Temperature recorder outputs Channel 1 / 2 0 to 10 V
Channel 3 0 to 20 mA / 4 to 20 mA
Stand-by input
External alarm device 24 to 0 V DC / max. 25mA
Safety sensor „SF“ Pt100, 4-lead technique
Measurement and control sensor „INT“ Pt100, 4-lead technique
Measurement and control sensor „EXT“ Pt100, 4-lead technique
Ambient temperature °C 5 ... 40
Overall dimensions (WxDxH) In./cm 8 x 7 x 7 / 21 x 18 x 18
Weight lbs./kg 7.7 / 4
Control connector for solenoid valve 230 V / max. 1.25 A 115 V / max. 1.25 A
Mains power socket for heating device
resistive load max. 3000 W max. 1400 W
Mains power connection ±10 % V/ Hz 230 / 50 115 / 60
Total power consumption W 3100 1400
All measurements have been carried out at:
rated voltage and frequency ambient temperature: 20 °C
Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations
10
Safety installations according to IEC 61010-2-010:
Excess temperature protection adjustable from 0 °C ... 420 °C
Supplementary safety installations
High temperature warning function optical + audible (in intervals)
Low temperature warning function optical + audible (in intervals)
Supervision of the working sensor plausibility control
Alarm indication optical + audible
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 IP31
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).

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Operating instructions
3. Safety notes for the user
3.1. 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.
3.2. Explanation of other notes
Note!
Draws attention to something special.
Important!
Indicates usage tips and other useful information.
3.3. Safety recommendations
Follow the safety recommendations to prevent damage to persons or property.
Further, the valid safety instructions for working places must be followed.
•ConnOnly 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.
•Place the instrument on an even surface on a pad made of non-inflammable
material.
•Observe the flash point of the bath medium used. The excess temperature
protection should be set at least 25 °C below the fire point.
•Set up the heating device according to the instructions prior to connection to
the controller and ensure secure attachment to the bath.
Danger of burning and fire!
•Immerse both temperature sensors in the bath medium and ensure secure

Safety notes for the user
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attachment.
•Observe the limited working temperature range when using plastic bath tanks.
•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.
•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.
•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.
•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. Therefore, exercise particular caution when touching these parts.
Use safety glasses!

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4. Operating controls and functional elements
1
Mains power switch, illuminated
2 Start / stop key
3 Working temperature T1
4 Working temperature T2
5 High temperature warning limit
6 Low temperature warning limit
7 Safety temperature
8 Adjustable excess temperature protection (safety temperature)
9
Control type: internal/external control
10 MULTI-DISPLAY (LED) temperature indication
/ /
Indicator lights:
Temperature indication - external actual value
Heating / Cooling / Alarm
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Display of internal/external actual value
12
Setp.1: 37.00°C
ExtAct: 37.00°C
Power: 100 %
Control: intern
DIALOG-DISPLAY (LCD) for indication of:
Line 1: Setpoint or or or
Line 2: Internal or external actual value
Line 3: Heating power in %
Line 4: Control type: internal / external control
13 MENUE key - for selecting the menu functions
14 Cursor keys - Select menu items
15 P-key Selecting parameters
16 Numeral keypad: numerals 0 to 9; minus / decimal point
17 Enter key 1) Store value / parameter
2) Next lower menu level
18 Escape key 1) Cancel entries
2) Return to a higher menu level

Operating controls and functional elements
14
19 SF Socket for safety sensor
20 INT Socket for internal measurement and control sensor
21 EXT Socket for external measurement and control sensor
Rear view
30 SERIAL Interface RS232/RS485
31 REG+E-PROG Programmer input and temperature recorder output
32 Socket: control cable of JULABO refrigerated circulator
or output for alarm messages
33 STAND-BY Stand-by input (for external emergency switch-off)
34 ALARM Alarm output (for external alarm signal)
35 Control output for solenoid valve
230 V / max. 1.25 A
115 V / max 1.25 A
36
Grounded mains socket for heating device
(max. resistive load 3000 W)
(230 V / 3000 W max. resistive load)
(115 V / 1400 W max. resistive load)
37 Mains fuses T16A at 230 V
T12,5 at 115 V
38 Fuses T 1.25 A (for connectors 35)
39 Mains power cable with plug

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5. Operating procedures
5.1. Installation
•The unit should be set up at a dry location.
•Place the unit in an upright position and do not obstruct the
ventilation.
•A wall distance of at least 10 cm must be maintained for
ventilation, allowing internal heat
to be conducted away from the unit.
•If one or more temperature controllers are set up in a
cabinet for example, take care of good ventilation (waste
heat per unit = approx. 60 Watts).
•The ambient temperature must not exceed 35 °C. Ambient
temperatures above 35 °C result in a failure of the unit.
•Do not set up the unit in the immediate vicinity of heat
sources and do not expose to sun light.
5.2. Connecting a heating device
Caution:
Set up the heating device according to the instructions or securely fix the unit in the
bath tank using appropriate means. Danger of burning and fire!
Connect the power plug to the grounded mains socket (36) on
the rear of the programmable controller.
Caution:
Max. resistive load 3000 W at 230 V. Max. current 16 A.
Max. resistive load 1400 W at 115 V. Max. current 12 A.
+

Operating procedures
16
5.3. Connecting the temperature sensors
To avoid error message and safety shutdown (see page 40),
attach sensors “SF” and “INT” before switching the instrument
ON.
•Attach the working sensor to socket labeled “INT” and the
safety sensor to socket labeled “SF”.
Sensor calibration:
When the controller is first placed into operation or whenever a
sensor is replaced, a working sensor calibration must be
carried out (ATC - see page 39).
Caution:
Place both sensors into the bath medium and securely fix the sensors.
5.4. Controlling an intermittent cooling water supply
The control output (35) is intended for the attachment of a
solenoid valve (230 V or 115 V - max. 1.25 A) which can be
used to control the flow of a liquid coolant. The flow of a
coolant is indicated by the illumination of a green indication
light on the control panel of LC6.
The solenoid valve is designed to be attached to the coolant
supply line.
Order-No. Description
8 980 703-3 Solenoid valve (230 V)
8 980 703-2 Solenoid valve (115 V)
Caution:
Securely attach all tubing to prevent slipping.

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5.5. Applications
Controlling an open bath with a direct heating device and internal control:
•A heating device is used to heat the bath fluid.
•Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected
to the LC6 and immersed in the bath.
•If a bath is to be operated at or near the ambient temperature, countercooling may be
necessary to ensure bath stability. This is accomplished by circulating a coolant such as tap
water through a cooling coil immersed in the bath. The flow of the coolant is controlled
automatically by the solenoid valve.
19 Connector „SF“ 19a Safety sensor
20 Connector „INT“ 20a Measurement and control sensor
20b Measurement sensor
21 Connector „EXT“ 21a Measurement and control sensor
35 Connector for solenoid valve 35a Solenoid valve
36 Mains socket for heating device 36a Heating device / heating hood
43 Cooling coil
44 Tap water connection
45 Cooling water drain
40 Stirrer motor for bath circulation
41 Bath tank
42 Round bottom flask

Operating procedures
18
Controlling an open bath with an indirect heating device and internal control:
•The bath fluid is heated with a device providing indirect heat, such as a heating hood.
•Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected
to the LC6 and immersed in the bath.
Controlling an open bath with an indirect heating device and external control:
•The bath liquid is heated indirectly with a water bath for example.
•The measurement „INT“ and safety „SF“ sensors must be immersed in the water bath.
•The measurement and control sensor „EXT“ must be immersed in the external bath liquid.

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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!
Make sure that the line voltage and frequency match the supply
voltage specified on the type plate.
Deviations of ±10 % are permissible.
6.2. Switching on / Selecting the language
Switching on:
Turn on the mains power switch.
The unit performs a self-test.
All segments of the 5-digit MULTI-DISPLAY (LED), all
indicator lights and the DIALOG-DISPLAY (LCD) will
illuminate.
Then the software version (example: n 1.11) appears. The
display "OFF" indicates the unit is ready to operate (standby
mode).
The programmable controller enters the operating mode
activated before switching the programmable controller off:
keypad control mode (manual operation) or
remote control mode (operation via personal computer).
Selecting the language:
There are two options for the language of the DIALOG-
DISPLAY (LCD): German or English. Select the desired
language in the MENUE level under the configuration
submenu.
Press the respective keys in the following order:
1. MENUE key 1 x
2. Enter key 1 x
3. Cursor key 4 x
4. P key 1 x
5. Enter key 1 x
6. Escape key 2 x
The DIALOG-DISPLAY (LCD) helps to follow up the
individual settings. (example: swap the language from
German to English.)

Manual operation
20
7. Manual operation
7.1. Start - Stop
Start:
•Press the start/stop key .
The MULTI-DISPLAY (LED) indicates the actual bath
temperature. (example: 21.03 °C)
Stop:
•Press the start/stop key .
The MULTI-DISPLAY (LED) indicates the message "OFF".
)
The unit also enters the safe operating state "OFF" or "r OFF after a mains power
interruptance. The temperature values entered via the keypad remain in memory.
With the programmable controller in keypad control mode, press the start/stop key
to restart operation.
With the programmable controller in remote control mode, the personal computer
must first resend the parameters set via the interface before the circulator may be
restarted.
7.2. Setting the temperatures
This setting may be carried out with the programmable
controller being in operating state Start or Stop!
Setting the working temperature "T1":
cPress the setpoint key .
The value previously set appears on the DIALOG-
DISPLAY (LCD) (example: 50.00°C).
A flashing segment indicates that a value needs to be
entered.
dUse the keypad to enter the new value (example: 37.00
°C).
ePress enter to store the selected value.
Setting the working temperature "T2":
cPress the setpoint key .
dFollow the instructions
efor "T1" (example: 25.50 °C).