Julabo LC4 F User manual
19515200-V2.doc 26.07.2013
English
Operating manual
Temperature controller
LC4
!
JULABO GmbH
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 7823 / 24 91
www.julabo.de
1.951.5200-V2 06/13
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
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
Important: keep operating manual for future use
LC4
3
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............................................................................... 17
5.7. Setting the temperatures................................................................................. 19
5.8. Setting the PID control parameters Xp, Tn and Tv.......................................... 19
5.8.1. Optimization instructions for the PID control parameters........................ 21
5.9. Setting the safety temperature (with shutdown function) ................................ 22
6. MENU FUNCTIONS................................................................................................ 23
6.1. Sensor calibration - ATC function ................................................................... 23
6.2. Temperature range: HL / LL............................................................................ 24
6.3. Parameter sets for control: PA ........................................................................ 24
6.4. Active countercooling: Pc................................................................................ 26
6.5. Controlling the heater capacity: h.................................................................... 26
6.6. Interface parameters: r - br - P - H .................................................................. 27
7. TROUBLESHOOTING GUIDE / ERROR MESSAGES ........................................... 28
8. ELECTRICAL CONNECTIONS............................................................................... 29
9. REMOTE CONTROL............................................................................................... 31
9.1. Communication with a PC or a superordinated data system........................... 31
9.2. List of commands............................................................................................ 32
9.3. Status messages ............................................................................................ 34
9.4. Error messages............................................................................................... 34
10. CLEANING / REPAIRING THE UNIT...................................................................... 35
Operating manual
4
Operating manual
1. Intended use
Fulfilling its principle task, reliable temperature control and measurement, the LC4 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.
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.
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.
LC4
5
If you have any questions concerning the operation of your unit or the information in this
manual, please contact us!
Contact: JULABO GmbH
Eisenbahnstraße 45
77960 Seelbach / Germany
Fax +49 (0) 7823 / 24 91 www.julabo.de
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.
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
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!
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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 GmbH
Eisenbahnstr. 45
77960 Seelbach / Germany
2.3. Warranty conditions
JULABO GmbH warrants its products against defects in material or in workmanship, when
used under appropriate conditions and in accordance with appropriate operating instructions
for a period of ONE YEAR.
Extension of the warranty period – free of charge
With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to
24 months, limited to a maximum of 10 000 working hours.
To apply for this extended warranty the user must register the unit on the JULABO web site
www.julabo.de, indicating the serial no. The extended warranty will apply from the date of
JULABO GmbH’s original invoice.
JULABO GmbH reserves the right to decide the validity of any warranty claim. In case of faults
arising either due to faulty materials or workmanship, parts will be repaired or replaced free of
charge, or a new replacement unit will be supplied.
Any other compensation claims are excluded from this guarantee.
Operator responsibility – Safety recommendations
8
2.4. Technical specifications
LC4
Adjustable temperature range °C -50 .... 350
Display accuracy % ±0.5 ± 1 Digit
Temperature stability
(depending on substances in the bath)
°C >±0.05
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
with 5 parameter sets freely selectable
Working temperature sensor Pt100, 4-lead technique
Safety temperature sensor Pt100, 4-lead technique
Electrical connections:
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 17 x 17 x 16
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 W max. 1050 (at 115 V)
Total power consumption W max. 2050 (at 230 V)
All measurements have been carried out at
rated voltage and frequency
ambient temperature 20 °C
Technical changes without prior notification reserved.
LC4
9
Safety installations according to IEC 61010-2-010:
Excess temperature protection 0 °C ... 350 °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 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).
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.
Do not stay in the area below the unit.
Make sure you read and understand all instructions and safety precautions
LC4
11
listed in this manual before installing or operating your unit.
Never operate the unit without bath fluid in the bath.
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
attachment.
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 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.
Sudden jolts or drops may cause damage in the interior of the unit.
Always empty the bath before moving the unit.
Transport the unit with care.
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
!
5
6
7
9
10
11
12
1
2
3
4
8
14
15
16
13
17
18
19
20
21
Rear view
LC4
13
1
Mains power switch, illuminated
2 Start / stop key
3 Working temperature setpoint
4 Control parameter Tv (lead time)
5 Control parameter Tn (resetting time)
6 Control parameter Xp (proportional range)
7 Safety temperature
8
Adjustable excess temperature protection(safety temperature)
9 Indication of working temperature
10 MULTI-DISPLAY (LED) temperature indication
Indicator light - Alarm
Indicator light - Cooling
Indicator light - Heating
11 Cursors left/right
12 Edit keys (increase/decrease setting)
13 Enter key (store)
14 Connector: Working sensor A
15 Connector: Safety sensor S
16 Connector: / alarm output
17 RS232C interface
18 Grounded mains socket for heating device
19 Threaded fitting (10 mm) for stand rod attachment
20 Mains fuses, fuse holders
21 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.
LC4
15
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 (18) 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
(see page 28).
Connect the working sensor to the socket “A” (14) and
the safety sensor to socket “S” (15) .
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 23).
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.
!
14
15
18
16
JULABO MVS
25
26
27
28
29
30
14a
15a
18a
31
16a
14 Connector: Working sensor 14a Working sensor
15 Connector: Safety sensor 15a Safety sensor
16 Connector for control cable 16a Control cable for MVS
18 Mains socket for heating device 18a Heating device / heating hood
25 MVS solenoid valve controller (order no. 9 790 000)
26 Solenoid valve 220 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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17
Indirectly heated bath liquid:
The bath liquid is indirectly heated.
Working and safety sensors must both be immersed in the bath liquid.
!
14
15
18
30
14a
15a
31
18a
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 two 4-digit displays as well as all indicator
lights will illuminate.
Then the software version (example: n 1.0) and the model
description "LC 4" appear.
Operating procedures
18
The display "OFF" or "rOFF" indicates the controller is ready to
operate. Also the effective working temperature setpoint is
indicated
(example: 20.0 °C).
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).
Start:
Press the start/stop key.
- The MULTI-DISPLAY (LED) indicates the actual bath
temperature. (example: 21.0 °C)
- The indicator light in the setpoint key illuminates.
Temperature control is carried out according to the parameter
set last effective (see page 24).
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 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.
LC4
19
5.7. Setting the temperatures
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 (example: 37.0 °C).
5.8. Setting the PID control parameters Xp, Tn and Tv
Setting the Xp (proportional range)
1. Press the key .
The indicator light blinks and the effective Xp 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: 12
°C).
Setting range for the Xp parameter: 0.1 to 50 °C
Operating procedures
20
Setting the Tn (resetting time)
1. Press the key .
The indicator light blinks and the effective value for Tn
appears on the MULTI-DISPLAY (LED).
2. Follow the instructions
3. for
4. (example: 1200 s).
Setting range for Tn: 1 to 9998 s.
With Tn set to 9999, the integral part of the controller is
deactivated (use of a P or PD type controller).
Setting the Tv (lead time)
1. Press the key .
The indicator light blinks and the effective value for Tv
appears on the MULTI-DISPLAY (LED).
2. Follow the instructions
3. for
4. (example: 120 s).
Setting range for Tv: 0 to 1000 s.
With Tv set to 0 eingestellt, the differential part of the
controller is deactivated (use of a P or PI type controller).
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