Julabo HL-4 User manual

19512803-V2.doc 22.07.13
Operating Manual
English
Heating Circulators
HL-4
SL-6
SL-12
SL-26
1.951.2803-V2 06/13
JULABO GmbH
77960 Seelbach / Germany
Tel. [phone] / 51-0
Fax [phone] / 24 91
[email protected]
www.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 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 operation manual for future use

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TABLE OF CONTENTS
Operating manual.................................................................................................................. 5
1. Intended use................................................................................................................... 5
1.1. Description................................................................................................................. 5
2. Operator responsibility – Safety recommendations........................................................ 6
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 ......................................................................................... 12
4. Operating controls and functional elements................................................................. 14
5. Preparations................................................................................................................. 18
5.1. Installation................................................................................................................ 18
5.2. Bath fluids ................................................................................................................ 18
5.3. Temperature application to external systems .......................................................... 20
5.3.1.Tubing ................................................................................................................. 21
5.4. Filling / draining........................................................................................................ 22
5.5. Counter-cooling........................................................................................................ 23
6. Operating procedures................................................................................................... 24
6.1. Power connection .................................................................................................... 24
6.2. Switching on / Selecting the language..................................................................... 24
6.3. Start - Stop............................................................................................................... 25
7. Setting of temperatures................................................................................... 25
8. Safety installations, warning functions............................................................ 26
8.0.1.Early warning system, low level protection.......................................................... 29
9. Menu functions ............................................................................................... 30
9.1. Start of a program.................................................................................................... 32
9.1.1.Status at the end of a program............................................................................ 34
9.1.2.Indication after successful start........................................................................... 34
9.1.3.Editing after Start................................................................................................. 35
9.1.4.Interrupting a program......................................................................................... 35
9.1.5.Interruption after a power failure.......................................................................... 36
9.1.6.Termination of a program.................................................................................... 36
9.2. Program administration, creation............................................................................. 37
9.3. Setting the pump pressure....................................................................................... 41
9.4. Configuration............................................................................................................ 42
9.4.1.Remote control via the serial interface................................................................ 45
9.4.2.Keypad control or setpoint setting via the analog input....................................... 45
9.4.3.Autostart.............................................................................................................. 46

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9.4.4.Off-Mode ..............................................................................................................46
9.4.5.ActVar - actuating variable...................................................................................47
9.4.6.Setting of clock and date......................................................................................48
9.4.7.Language .............................................................................................................48
9.4.8.Unit.......................................................................................................................48
9.4.9.Program type........................................................................................................48
9.4.10. Reset...............................................................................................................48
9.5. Control ......................................................................................................................49
9.5.1. Control internal / external....................................................................................51
9.5.2.Selftuning .............................................................................................................52
9.5.3.Dynamik intern .....................................................................................................52
9.5.4.CoSpeed - extern.................................................................................................53
9.5.5.Control parameters – internal/external.................................................................53
9.6. Serial Interface..........................................................................................................55
9.7. ATC Absolute Temperature Calibration, 3-point calibration......................................56
9.7.1.ATC Fühler - intern / extern..................................................................................59
9.7.2.ATC Status - yes / no...........................................................................................59
9.7.3.Type 1 -/ 2 -/ 3 point............................................................................................59
9.7.4.Example: 3-point calibration for internal control..................................................60
9.8. Limits ........................................................................................................................62
9.8.1.Limits for internal control and external control......................................................63
9.8.2.Limits for external control.....................................................................................64
9.9. Analog inputs/outputs ...............................................................................................65
9.9.1.Control connector.................................................................................................69
9.9.2.Outputs of the connector - REG+E-PROG...........................................................70
9.9.3.Input of the connector - REG+E-PROG...............................................................71
9.9.4.External Stand-by input........................................................................................73
9.9.5.Alarm-output.........................................................................................................74
10. Troubleshooting guide / Error messages.......................................................................75
11. Electrical connections....................................................................................................78
12. Remote control..............................................................................................................81
12.1. Setup for remote control ...........................................................................................81
12.2. Communication with a PC or a superordinated data system....................................81
12.3. List of commands......................................................................................................82
12.4. Status messages ......................................................................................................86
12.5. Error messages.........................................................................................................86
13. Installation of electronic module with analog connectors ..............................................87
14. JULABO Service – Online remote diagnosis.................................................................88
15. Cleaning / repairing the unit ..........................................................................................89

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Operating manual
1. Intended use
JULABO circulators have been designed to control the temperature of specific fluids in a bath tank.
The units feature pump connections for temperature control of external systems (loop circuit).
JULABO circulators 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
ICC
TCF
ATC
3
RS232
RS485
Pt100
PUMP
SMART
The circulators are operated via the splash-proof keypad. The implemented
microprocessor technology allows to set and to store different values that can be
indicated on the VFD COMFORT-DISPLAY and LCD DIALOG-DISPLAY. Three
menu keys facilitate adjusting setpoints, warning and safety functions and menu
functions.
The integrated programmer allows storing and running temperature and time-
dependent processes.
The control electronics including “ICC - Intelligent Cascade Control“ automatically
adapts the heat supplied to the thermal requirements of the bath.
The TCF - Temperature Control Features allow the user to have access to all
important temperature control parameters. This means: Full control on the control
mode and the chance to manually adjust or adapt control to the specific application.
Absolute Temperature Calibration (ATC3) provides high temperature stability in the
bath. With the 3-point calibration an offset is adjusted at three temperatures to
ensure an accurate temperature pattern at the selected spot in the bath over the full
temperature range.
Electrical connections:
The serial interface, switchable from RS232 to RS485, allows modern process
technology without additional interface.
Connection for Pt100 external sensor for external temperature measurement and
control.
Alarm output for external alarm message or control of JULABO refrigerating baths
or solenoid valve (cooling water).
The electronic module (option) provides 3 further analog connections (alarm input,
standby input, recorder output, programmer input).
The excess temperature protection conforming to IEC 61010-2-010 is a safety
installation independent from the control circuit. This protection can be indicated
and set on the LCD DIALOG-DISPLAY.
The early warning system for low level signals that bath fluid needs to be refilled
before the low level protection conforming to IEC 61010-2-010 causes a complete
shut-down of the main functional elements.
Intelligent pump system: The pump capacity (electronically adjustable via the motor
speed) enables to adapt to varying conditions for internal and external temperature
applications.

Operator responsibility – Safety recommendations
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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.
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
Tel. [phone] / 51-0
Fax [phone] / 24 91
[email protected]
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.

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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.
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:
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
The circulator contains a back-up battery that supplies voltage to memory chips when the unit is
switched off. Do not dispose of the battery with household waste!
Depending on battery regulations in your country, you might be obliged to give back used or defect
batteries to gathering places.
The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or
synthetic oil. For disposal, observe the instructions in the safety data sheets.
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!

Operator responsibility – Safety recommendations
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2.2. EC Conformity
The products described in the operating instructions conform to the requirements of
the following European guidelines:
Directive of the European Parliament and of the Council on the approximation of
the laws of the Member States relating to machinery.
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.

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2.4. Technical specifications
Heating circulators HL-4 SL-6 SL -12 SL -26
Working temperature range °C 20 … 250 20 ... 300 20 ... 300 20 ... 300
Temperature stability °C ±0.01 ±0.01 ±0.01 ±0.01
Bath opening (WxL) cm 13x15 13x15 22x15 22x30
Bath depth cm 15 20 20 20
Filling volume liters 3 ... 4,5 4,5 ... 6 7,5 ... 12 18 ... 26
Overall dimensions (WxDxH) cm 21x42x40 21x43x44 30x43x47 36x61x47
Weight kg
11 13,5 14,0 27,0
HL SL
Temperature selection digital
via keypad indication on LCD DIALOG-DISPLAY (°C/°F)
remote control via PC indication on monitor
Temperature indication VFD COMFORT-DISPLAY (°C/°F)
Resolution °C 0.01
ATC3 INT / EXT °C ±3 / ±9
Temperature control ICC - Intelligent Cascade Control
Heater wattage (at 230 V)
Heater wattage (at 115 V) kW 2.0 3.0
Temperature selection kW 1.0 -----
Electronically adj. pump capacity stages 1 ... 4 1 ... 4
Flow rate at 0 bar l/min 22 ... 26 22 ... 26
Max. pressure at 0 liters bar 0.7 0.7
Max. suction at 0 liters bar 0.4 0.4
Electrical connections: See page 10
Ambient temperature °C 5 ... 40 5 ... 40
Mains power connection 230 V/50-60 Hz V/ Hz 190 ... 253 / 50-60 190 ... 253 / 50-60
Current draw (at 208 V / 230 V) A 8 / 9 12 / 13
Mains power connection 115 V/50-60 Hz V/ Hz 90 ... 127 / 50-60 -----
Current draw (at 100 V / 115 V) A 9/10 -----
All measurements have been carried out at: rated voltage and frequency
ambient temperature: 20 °C bath fluid: water operating temperature: 70 °C
Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations
10
Electrical connections:
External alarm device 24-0 V DC / max. 25 mA
Computer interface RS232 or RS485
External Pt100 sensor
Optional for HL, SL
(Order No. 8900100 Electronic module with analog connections)
Programmer input -100 °C to 400 °C = 0 - 10 V or 0 - 20 mA or 4 - 20 mA
Input for the signal of a flow meter or external manipulated variable
Temperature recorder outputs 0 - 10 V (0 V = -100 °C, 10 V = 400 °C)
0 - 20 mA (0 mA = -100 °C, 20 mA = 400 °C)
4 - 20 mA (4 mA = -100 °C, 20 mA = 400 °C)
Standby input for external emergency switch-off
Alarm output for external alarm signal
Safety installations according to IEC 61010-2-010:
Excess temperature protection adjustable from 0 °C ... 320 °C
Low liquid level protection float switch
Classification according to DIN 12876-1 class III
Supplementary safety installations
Early warning system for low level float switch
High temperature warning function optical + audible (in intervals)
Low temperature warning function optical + audible (in intervals)
Supervision of working sensor plausibility control
Reciprocal sensor monitoring between
working and safety sensors difference >35 K
Alarm message optical + audible (permanent)
Warning message optical + audible (in intervals)
Environmental conditions according to IEC 61 010-1:
Use indoors only.
Altitude up to 2000 m - normal zero.
Ambient temperature: see Technical specifications
Humidity:
Max. relative humidity 80% for temperatures up to +31 °C,
linear decrease down to 50% relative humidity at a temperature of +40 °C
Max. mains voltage fluctuations of ±10% are permissible.
Protection class according to IEC 60 529 IP21
The unit corresponds to Class I
Overvoltage category II
Pollution degree 2
Caution:
The unit is not suitable for use in explosive environment
EMC requirements 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).