Julabo LC4 F User manual

19515213.DOC
English
Operating manual
Temperature Controller
LC4 F
JULABO Labortechnik GmbH
77960 Seelbach / Germany
+49 (0) 7823 / 51-0
+49 (0) 7823 / 24 91
|[email protected]
Þwww.julabo.de
1.951.5213 01/11

2
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.
Printed in Germany Changes without prior notification reserved

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INDEX
OPERATING MANUAL.........................................................................................4
1. INTENDED USE..............................................................................................4
1.1. Description .....................................................................................................4
2. OPERATOR RESPONSIBILITY – SAFETY RECOMMENDATIONS .............4
2.1. Disposal..........................................................................................................6
2.2. EC Conformity................................................................................................7
2.3. Warranty conditions........................................................................................7
2.4. Technical specifications..................................................................................8
OPERATING INSTRUCTIONS...........................................................................10
3. SAFETY NOTES FOR THE USER................................................................10
3.1. Explanation of safety notes ..........................................................................10
3.2. Explanation of other notes............................................................................10
3.3. Safety recommendations..............................................................................10
4. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS .......................12
5. OPERATING PROCEDURES .......................................................................14
5.1. Installation....................................................................................................14
5.2. Power connection.........................................................................................14
5.3. Connecting a heating device ........................................................................15
5.4. Connecting the temperature sensors............................................................15
5.5. Applications..................................................................................................16
5.6. Switching on / Start - Stop............................................................................18
5.7. Setting the temperature................................................................................19
5.8. Self-tuning the PID-control parameters Xp, Tn und Tv.................................20
5.9. Setting the PID control parameters Xp, Tn and Tv.......................................21
5.9.1. Optimization instructions for the PID control parameters.................23
5.10. Setting the safety temperature (with shutdown function)..............................24
6. MENU FUNCTIONS ......................................................................................26
6.1. Sensor calibration - ATC / SF or AF-............................................................26
6.2. Temperature recorder output - AO -.............................................................27
6.3. Programmer input - EP -...............................................................................28
6.4. Programmer input scale - EPH / EPL -.........................................................28
6.5. Interface parameters H - P - br - r -.............................................................32
6.6. Controlling the heater capacity - h -..............................................................33
6.7. Active countercooling - Pc -..........................................................................33
6.8. Warning functions - LL / HL -........................................................................34
7. TROUBLESHOOTING GUIDE / ERROR MESSAGES.................................35
8. ELECTRICAL CONNECTIONS.....................................................................36
9. REMOTE CONTROL.....................................................................................39
9.1. Communication with a PC or a superordinated data system........................39
9.2. List of commands .........................................................................................40
9.3. Status messages..........................................................................................40
9.4. Error messages............................................................................................41
10.CLEANING / REPAIRING THE UNIT............................................................42

Operating manual
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Operating manual
1. Intended use
Fulfilling its principle task, reliable temperature control and measurement, the LC4F
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 the
working temperature setpoint and five parameter sets to be stored and indicated on the
MULTI-DISPLAY (LED).
The safety value for excess temperature protection, a safety installation independent from the
control circuit, is adjustable on the front and visible on the MULTI-DISPLAY (LED).
The RS232C port permits modern process engineering without additional interface, directly
on-line from the controller to your application equipment.
The LC4 F temperature controller conforms to the safety requirements specified by DIN 12
876 as well as the guideline for first voltage range EN 61010.
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.

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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 circulator.
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.

Operator responsibility – Safety recommendations
6
When using hazardous materials or materials that could become hazardous, the operator
must affix the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible:
1
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!

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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.

Operator responsibility – Safety recommendations
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2.4. Technical specifications
LC4F
Adjustable temperature range °C -50 .... 350
Display accuracy % ±0.5 ± 1 Digit
Temperature stability
(depending on substances in the bath) °C >±0.03
Temperature selection digital
via keypad indication on MULTI-DISPLAY (LED)
remote control via computer indication on monitor
Temperature display MULTI-DISPLAY (LED): 4-digit
Working temperature: 4-digit
Resolution °C 0.1
ATC function °C ±9.99
Temperature control PID
Control parameters set via self-tuning or individually
Working temperature sensor Pt100, 4-lead technique
Safety temperature sensor Pt100, 4-lead technique
Electrical connections:
Temperature recorder output
Programmer input
Conversions for LC4 F see page 9
4 ... 20 mA / 0 ... 20 mA
0 ... 20 mA / 0 ... 10 V
External alarm 24-0 V DC / max. 25 mA
Interface RS232C
Mains power socket
for heating device (at 115 V) W max. 1000; resistive load
or (at 230 V) W max. 2000; resistive load
Overall dimensions (WxDxH) cm 25 x 20 x 10
Weight kg 3
Ambient temperature °C 5 ... 40
Mains power connection ±10% V/Hz 230 / 50-60
Mains power connection ±10% V/Hz 115 / 50-60
Current draw A 10
Total power consumption (at 115 V) W max. 1050
Total power consumption (at 230 V) W max. 2050
All measurements have been carried out at rated voltage and frequency
ambient temperature 20 °C Technical changes without prior notification reserved.

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Conversions for LC4 F:
0 ... 10 V 1 V = -50 °C, 9 V = 350 °C
0 ...20 mA 2 mA = -50 °C, 18 mA = 350 °C
4 ... 20 mA 5,6 mA = -50 °C, 18,4 mA = 350 °C
Safety installations according to IEC 61010-2-010:
Excess temperature protection -50 °C ... 355 °C
Supplementary safety installations:
Supervision of the working sensor plausibility control
Alarm indication optical + audible (continuous tone)
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 atmosphere
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).

Operating instructions
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.
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

LC4 F
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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
attachment.
•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!

Operating controls and functional elements
12
4. Operating controls and functional elements
Rear view
1
Mains power switch, illuminated
AKeypad: working area
2 Start / stop key
3 Working temperature setpoint
4 Control parameter Xp (proportional range)
5 Control parameter Tn (resetting time)
6 Control parameter Tv (lead time)
7 Tune key: determining the control parameters

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S Keypad: safety area
8 Safety temperature setpoint
9 Key- Indicator light – alarm Reset safety temperature alarm
10 Key- Silent alarm signal
Indication of : A = MULTI-DISPLAY (LED)
S = Temperature of safety sensor SF
Indication of: A = Working temperature setpoint
S = Safety temperature setpoint
Cursors left/right
Edit keys (increase/decrease setting)
Enter key (store)
Indicator light - Heating
Indicator light - Cooling
11 Connector: Working sensor AF
12 Connector: Safety sensor SF
13 RS232C interface
14 Connector: Programmer input and
Temperature recorder output
15 Connector: / alarm output
16
Grounded mains socket for heating device
(Max. resistive load 1000 W at 115 V / 2000 W at 230 V)
17 Mains fuses, fuse holders
18 Mains power cable with plug

Operating procedures
14
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. 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.

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5.3. 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 (16) on
the rear of the controller.
Caution:
Max. resistive load 1000 W at 115 V / 2000 W at 230 V.
Max. current 5 A at 115 V / 10 A at 230 V.
5.4. Connecting the temperature sensors
Connect both sensors prior to turning the unit on since an alarm
shutoff will be effected if the sensors are not connected
Connect the working sensor to the socket “AF” (12) and
the safety sensor to socket “SF” (11).
Sensor calibration:
When the controller is first used or whenever a sensor is
replaced, a working sensor calibration must be carried out
(ATC see page 26)
Caution:
Place both sensors into the bath medium and securely fix the sensors.

Operating procedures
16
5.5. Applications
Directly heated bath liquid:
•The bath liquid is directly heated via the heating device.
•Working and safety sensors must both be immersed in the bath liquid..
•Whenever countercooling is necessary (in case of temperature application near the
ambient temperature), cooling in the bath is performed through a cooling coil connected to
a solenoid valve and the MVS controller.
11 Connector: Safety sensor 11a Safety sensor
12 Connector: Working sensor 12a Working sensor
15 Connector for control cable 15a Control cable for MVS
16 Mains socket for heating device 16a Heating device / heating hood
25 MVS solenoid valve controller (order no. 9 790 000)
26 Solenoid valve 230 Volts (order no. 8 980 700)
27 Cooling coil
28 Tap water connection
29 Cooling water drain
30 Stirrer motor for bath circulation
31 Bath tank / round bottom flask with bath liquid

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Indirectly heated bath liquid:
•The bath liquid is indirectly heated.
•Working and safety sensors must both be immersed in the bath liquid.

Operating procedures
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5.6. Switching on / Start - Stop
Switching on:
Turn on the mains power switch.
The unit performs a self-test. A signal sounds, and all
segments of the 4-digit displays as well as all indicator
lights will illuminate.
A S
Then the software version (example: n 0.0) and the model
description "LC 4" appear.
A S
The display "OFF", "rOFF" or “EOFF“ indicates the
controller is ready to operate.
The effective working temperature setpoint (example: 21.0
°C) and the permanently installed setpoints (example:
20.0 °C and 125.0 °C) are also indicated
The controller enters the operating mode activated before
switching the controller off,
keypad control mode (manual operation) or
remote control mode (operation via personal
computer) or
programmer control mode. (operation via external
programmer)
Start:
yPress the start/stop key.
- The MULTI-DISPLAY (LED) indicates the actual bath
temperature. (example: 21.0 °C)
Temperature control is carried out according to the
parameter set last effective.
Stop:
•Press the start/stop key.
The MULTI-DISPLAY (LED) indicates the message
"OFF".

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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
controller in keypad control mode, press the start/stop key to
restart operation.
With the controller in remote control mode, the personal
computer must first resend the parameters set via the
interface before operation of the controller may be restarted.
5.7. Setting the temperature
A
Setting the working temperature:
1. Press the setpoint key .
The indicator light blinks and the effective value appears
on the MULTI-DISPLAY (LED).
2. Use the cursor keys to move left or right on
the display until the numeral you wish to change is
blinking.
3. Use the increase/decrease arrows to change
the selected numeral (-, 0, 1, 2, 3, ... 9).
4. Press enter to store the selected value (example:
37.0 °C).
The working temperature is maintained constant after a short
heat-up time.

Operating procedures
20
5.8. Self-tuning the PID-control parameters Xp, Tn und Tv
The parameters Xp, Tn and Tv are permanently and
automatically determined and stored by means of the self-
tuning facility.
•Press the key and start the controller by pressing
the start/stop key.
•The indicator light has two functions:
If it lights up - the key is in use.
If it blinks – the self-tuning function is active.
Information:
For successful self-tuning, the controller heats above a
temperature difference of 20°C.
The control parameters are set too high if the selected
values cannot be reached under certain circumstances.
The control parameters are switched off so that they can
be reduced before operation.
Recommended: Xp = 4.0 °C
Tn = 150 s
Tv = 10 s
Self-tuning the control parameters display:
•Keep the setpoint key depressed. The control light blinks
and the effective setpoint of the parameters is shown on
the MULTIDISPLAY (LED).
It is not possible to change the setpoint manually while
the self-tuning function is switched on.