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 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.
Printed in Germany Changes without prior notification reserved
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
4
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 splashproof, 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.
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.
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 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.
5
Operator responsibility – Safety recommendations
If you have any questions concerning the operation of your unit or the information in this manual,
please contact us!
Contact:
Safety instructions for the operator:
You 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.
Make 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.
Make sure that the mains power supply has low impedance to avoid any negative effects on
instruments being operated on 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 affect other devices with components sensitive to magnetic fields
(e.g., monitors). We recommend maintaining a minimum distance of 1 m.
Permissible ambient temperature: max. 40 °C, min. 5 °C.
Permissible relative humidity: 50% (40 °C).
Do not store the unit in an aggressive atmosphere.
Protect the unit from contamination.
Do not expose the unit to sunlight.
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:
6
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.
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.
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
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 recommendations
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
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
Extension of the warranty period – free of charge
The products described in the operating instructions conform to the requirements
of the following European guidelines:
electric devices for use within certain voltage limits.
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
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.
8
, indicating the serial no. The extended warranty will apply from the date of
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.
9
Operator responsibility – Safety recommendations
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).
10
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.
3.3. Safety recommendations
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.
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
11
Safety notes for the user
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!
12
4. Operating controls and functional elements
1
Mains power switch, illuminated
2
3
4
5
6
7
8
9
Start / stop key
Working temperature T1
Working temperature T2
High temperature warning limit
Low temperature warning limit
Safety temperature
Adjustable excess temperature protection (safety temperature)
Control type: internal/external control
10 MULTI-DISPLAY (LED) temperature indication
/ /
11
Indicator lights:
Temperature indication - external actual value
Heating / Cooling / Alarm
Display of internal/external actual value
DIALOG-DISPLAY (LCD) for indication of:
Line 1: Setpoint
or or or
Line 2: Internal or external actual value
13
14
15
16
17
18
Line 3: Heating power in %
Line 4: Control type: internal /
external control
MENUE key - for selecting the menu functions
Cursor keys - Select menu items
P-key Selecting parameters
Numeral keypad: numerals 0 to 9; minus / decimal point
Enter key 1) Store value / parameter
2) Next lower menu level
Escape key 1) Cancel entries
2) Return to a higher menu level
13
Operating controls and functional elements
Socket for safety sensor
19
20
21
Rear view
SF
INT
EXT
Socket for internal measurement and control sensor
Socket for external measurement and control sensor
30 SERIAL
31 REG+E-PROG
32
33 STAND-BY
34 ALARM
35
36
37
38
39 Mains power cable with plug
Interface RS232/RS485
Programmer input and temperature recorder output
Socket: control cable of JULABO refrigerated circulator