Julabo Presto LH 45 User manual

19532757_a.doc Print date: 19.01.09
Operating Manual
Highly Dynamic Temperature Control System
•with integrated programmer
Presto®
LH 45
LH 46
Version: V45D-01
LH 85
Version: V85D-04
JULABO WEST
2575 Pioneer Avenue, Suite 102
Vista, CA 92081
[phone]
[phone]
|info @ julabo.com
Þwww.julabo.com
JULABO EAST
754 Roble Road, Suite 180
Allentown, PA 18109
[phone]
[phone]
|info @ julabo.com
Þwww.julabo.com

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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.
Quality Management System
•
ISO 9001
2000
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The JULABO Quality Management System:
Temperature control devices for research and industry are developed, produced,
and distributed according to the requirements of DIN EN ISO 9001:2000.
Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the instrument 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.
1.953.2757BU1 01/09 Printed in Germany Changes without prior notification reserved

Presto®
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TABLE OF CONTENTS
OPERATING MANUAL ....................................................................................................... 5
1. INTENDED USE .................................................................................................... 5
1.1. Description............................................................................................................. 5
2. OPERATOR RESPONSIBILITY – SAFETY INSTRUCTIONS .............................. 5
2.1. Disposal................................................................................................................. 7
2.2. Technical specifications......................................................................................... 8
2.3. Cooling water connection .................................................................................... 11
OPERATING INSTRUCTIONS ......................................................................................... 12
3. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS.............................. 12
3.1. The Presto® principle with closed external system .............................................. 16
3.2. The Presto® principle with open external system................................................. 17
4. SAFETY NOTES FOR THE USER...................................................................... 18
4.1. Explanation of safety notes ................................................................................. 18
4.2. Explanation of other notes................................................................................... 18
4.3. Safety instructions ............................................................................................... 18
5. PREPARATIONS ................................................................................................ 21
5.1. Installation ........................................................................................................... 21
5.2. Bath fluids............................................................................................................ 22
5.3. Connect the external system ............................................................................... 24
5.3.1. Cooling water connection ............................................................................. 25
5.3.2. Tubing........................................................................................................... 26
5.4. Power connection ................................................................................................ 27
5.5. Filling ................................................................................................................... 27
5.5.1. Filling of external, closed systems................................................................ 28
5.5.2. Filling of external, open systems .................................................................. 29
5.6. Degasifying.......................................................................................................... 31
5.7. Draining ............................................................................................................... 32
6. OPERATING PROCEDURES ............................................................................. 33
6.1. Switching on / Selecting the language................................................................. 33
7. MANUAL OPERATION........................................................................................ 34
7.1. Start - Stop .......................................................................................................... 34
7.2. Direct setting of the working temperature............................................................ 35
7.3. Settings in the SET menu.................................................................................... 35
7.3.1. Setting the working temperature................................................................... 35
7.3.2. Warning functions......................................................................................... 36
7.3.3. Setting the pump pressure stage.................................................................. 37

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7.4. Setting the safety temperature (with shutdown function) .................................... 38
7.5. Internal / external control..................................................................................... 40
8. MENU FUNCTIONS ............................................................................................ 40
8.1. Configuration ....................................................................................................... 42
8.2. Control parameters.............................................................................................. 45
8.3. Start of a profile ................................................................................................... 47
8.3.1. Interrupting a profile ..................................................................................... 49
8.4. Integrated programmer........................................................................................ 50
8.5. Analog inputs/outputs.......................................................................................... 53
8.6. Limits ................................................................................................................... 56
8.7. Interface .............................................................................................................. 56
8.8. Sensors ............................................................................................................... 57
8.9. Pump ................................................................................................................... 58
9. TROUBLESHOOTING GUIDE / ERROR MESSAGES ....................................... 59
9.1. Additional warnings and alarm messages LH85 ................................................. 61
10. ELECTRICAL CONNECTIONS........................................................................... 63
11. REMOTE CONTROL........................................................................................... 66
11.1. Setup for remote control...................................................................................... 66
11.2. Communication with a PC or a superordinated data system............................... 67
11.3. List of commands ................................................................................................ 68
11.4. Status messages / error messages..................................................................... 71
11.5. Additional error messages LH85 ......................................................................... 72
12. CLEANING THE UNIT......................................................................................... 75
13. MAINTAINING / REPAIRING THE UNIT............................................................. 77
14. WARRANTY PROVISIONS................................................................................. 79

Presto®
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Operating manual
1. Intended use
Presto highly dynamic temperature control systems have been designed for external temperature
application to liquids. They offer rapid heating and cooling, wide working temperature ranges without
changing fluids as well as highest performance with a small footprint.
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
Besides the cooling unit, the main functional elements are the heater, circulation pump and control
electronics. Via an external Pt100 control sensor, a self-optimizing, electronic proportional
temperature control (PID characteristic) adapts the heat supplied to the thermal requirements of
the external system.
The high pump capacity can be reduced by regulating the motor speed in five grades. It may thus
be adapted to sensitive vessels.
The cooling unit may be cooled with air or water (automatic changeover).
Setting is rapid and simple using the splash-proof keypads. The operating elements consist of the
local operating board with a bright VFD-Info-Display, as well as the removable control module RD
connected with a cable.
The microprocessor technology allows four temperature values to be stored and indicated on the
DIALOG-DISPLAY (LCD) of the control module RD: working temperature, high and low
temperature warning limits as well as pump pressure stage.
The digital RS232 / RS485 port permits modern process engineering without additional interface.
The excess temperature protection (safety temperature) according to DIN 12 876-1-2000, a safety
feature functioning independent of the regulator circuit, is adjusted and indicated via the VFD-Info-
Display.
The integrated programmer allows programming of setpoint and time values for six temperature
profiles.
The following analog sockets are available:
- The REG+E-PROG socket for setpoint selection via an external, analog programmer.
At the same time, this socket provides three analog outputs for temperature recorders.
- The external Pt100 socket for external control.
- The alarm output for an external signal.
- The stand-by input for external emergency switch-off.
Presto® high dynamic temperature systems conforms to the relevant requirements specified by
European guidelines.
2. Operator responsibility – Safety instructions
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.

Operator responsibility – Safety instructions
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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 WEST
2575 Pioneer Avenue, Suite 102
Vista, CA 92081
[phone]
[phone]
|info @ julabo.com
Þwww.julabo.com
JULABO EAST
754 Roble Road, Suite 180
Allentown, PA 18109
[phone]
[phone]
|info @ julabo.com
Þwww.julabo.com
Safety instructions for the operator:
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 the
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 configure, install, maintain, or repair the circulator.
Persons who operate the circulator must be trained in the particular tasks by qualified personnel. The
summarized user guidance (short manual) and the specification table with information on individual
parameters are sufficient for this.
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).

Presto®
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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 to the front of the unit so they are highly visible:
If this unit is intended for use within the United States of America, all 3 warning labels must be affixed
to the housing of the unit prior to use. Directions for the positioning of the individual warning labels are
enclosed with the warning labels included in the delivery.Warning labels must be easily visible to
users.
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
3
Warning label Proposition 65
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 corresponding safety instructions. Also observe the pin assignment of plugs
and technical specifications of the products.
2.1. Disposal
The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or
synthetic oil. For disposal, follow the instructions in the material safety data sheets.
This unit contains the refrigerants R404A and R23, which at this time are not considered harmful to the
ozone layer. However, over the long operating period of the unit, disposal rules may change.
Therefore, only qualified personnel should handle the disposal.

Operator responsibility – Safety instructions
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2.2. Technical specifications
LH45 LH46
Working temperature range °C -40 ... 250 -45 ... 250
Temperature stability °C ±0.01 ... ±0.05 ±0.01 ... ±0.05
Cooling capacity 1) °C 200 / 20 -20 -40 200 / 20 -20 -40
(bath liquid: Thermal / Ethanol) kW 1.5 / 1.2 0.5 0.1 2.5 / 2.1 0.9 0.1
Cooling compressor 1-stage 1-stage
Refrigerant R404A R404A
Heater wattage kW 2,6 1.8
Pressure pump, adjustable in five grades in five grades
pressure min ... max. at 0 liter bar 0.8 ... 1.6 0.8 ... 1.6
discharge, max. at 0 bar l/min 24 ... 33 24 ... 33
Noise level, 1 m distance dBA 66 66
Filling volume Liters 2,5 2,
Overall dimensions (WxDxH) cm 30 x 49 x 64 50x59x64
Weight kg 73 96
Ambient temperature °C 5 ... 40 5 ... 40
Mains power connection ±10 % V / Hz 230/50 / 230/60 230/50 / 230/60
Total power consumption W 2400 2800
LH 85
Working temperature range °C -80 ... 250
Temperature stability K ±0,01 ... ±0,05
Cooling capacity 1) °C 200 / 20 -20 -40 -60 -80
(bath liquid: Thermal / Ethanol) kW 1.5 / 1.0 0.9 0.7 0.5 0.1
Cooling compressor 2-stage
Refrigerant R23 / R404A
Heater wattage kW 1.8
Pressure pump, adjustable in five grades
pressure min ... max. at 0 liter bar 0,8 ... 1,6
discharge, max. at 0 bar l/min 24 ... 33
Noise level, 1 m distance dBA 66
Filling volume Liters 2.5
Overall dimensions (WxDxH) cm 50x59x64
Weight kg 120
Ambient temperature °C 5 ... 40
Mains power connection ±10 % V/Hz 230/50 / 230/60
Total power consumption W 3700
1) Cooling capacity measured at pumpe stage 1=24 l/min. – 0,8 bar
All measurements have been carried out at:
rated voltage and frequency ambient temperature: 20 °C
Technical changes without prior notification reserved.

Presto®
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Presto®Temperature System LH45, LH46, LH85
Temperature selection digital
via Removable control module RD indication on DIALOG-Display (LCD)
remote control via personal computer indication on monitor
Temperature indication VFD-Info-Display
DIALOG-DISPLAY (LCD)
Resolution °C 0.01 from -9.99 °C to +249.99 °C
Pump pressure display on VFD-Info-Display in five grades
Liquid level display on VFD-Info-Display in five grades
Absolute Temperature Calibration
(ATC1) °C ±3
(ATC2) °C ±9
Temperature control ICC - Intelligent Cascade Control, self-optimizing
Cascade, parameter can be called-in and modified
Working temperature sensor Pt 100
Safety temperature sensor Pt 100
Electrical connections:
Computer interface RS232 or RS485 or Profi
Programmer input -100 °C to 400 °C = 0 to 10 V or 0 to 20 mA or 4 to 20 mA
Temperatur recorder outputs 0 to 10 V (0 V = -100 °C, 10 V = 400 °C)
0 to 20 mA (0 mA = -100 °C, 20 mA = 400 °C)
4 to 20 mA (4 mA = -100 °C, 20 mA = 400 °C)
Stand-by input
External alarm device 24-0 V DC / max. 25 mA
External measurement and control sensor Pt100, 4-lead technique
Control connector (10) Output voltage: 230 V∼/ max. 0.1 A
Safety installations according to IEC 61010-2-010:
Excess temperature protection >TANK< adjustable from 0 °C ... 320 °C
Excess temperature protection >RES< adjustable from 0 °C ... 220 °C
Low level protection float switch
Liquid level display optical, 5-graded
Classification according to DIN 12876-1 class III FL
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
Reciprocal sensor monitoring between
working and safety sensors difference >25 °C
Alarm indication optical + audible (permanent)

Operator responsibility – Safety instructions
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Environmental conditions according to IEC 61 010-1:
•Use only indoor.
•Altitude up to 2000 m - normal zero.
•Ambient temperature: see Technical specifications
•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 fluctuations of ±10 % are permissible.
•Overvoltage category II
•Pollution degree 2
Caution:
The unit is not for use in explosive atmosphere
Protection class according to IEC 60 529: IP20
The unit corresponds to Class I
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).