Julabo HE-4 User manual

22.06.18
Operating Manual
English
Heating Circulators
HE-4
SE-6
SE-12
SE-26
Bridge Mounted
Circulator
SE-Z
1.951.2442-V5 06/18
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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 operating 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 ................................................................................................. 9
2.4. Technical specifications ......................................................................................... 10
Operating instructions .......................................................................................................12
3. Safety notes for the user............................................................................................. 12
3.1. Explanation of safety notes.................................................................................... 12
3.2. Explanation of other notes...................................................................................... 12
3.3. Safety recommendations........................................................................................ 13
4. Operating controls and functional elements................................................................ 15
5. Preparations...............................................................................................................18
5.1. Installation.............................................................................................................. 18
5.2. Bath fluids.............................................................................................................. 19
5.3. Temperature application to external systems......................................................... 20
5.3.1.Tubing ............................................................................................................... 21
5.4. Filling / draining...................................................................................................... 22
5.5. Countercooling....................................................................................................... 23
6. Operating procedures................................................................................................. 24
6.1. Power connection................................................................................................... 24
6.2. Switching on / Start - Stop...................................................................................... 24
6.2.1.Switching on the circulator................................................................................. 24
7. Setting of temperatures................................................................................. 25
7.1. Using the pre-settings in the menu ........................................................... 25
7.2. Direct setting of temperatures................................................................................ 26
8. Safety installations, warning functions........................................................... 27
8.1. Excess temperature protection............................................................................... 27
8.1.1.Early warning system, low level protection......................................................... 28
8.2. Switch-over from warning to shutdown function...................................................... 29
8.3. Over and Sub temperature warning function.......................................................... 30
9. Menu functions.............................................................................................. 31
9.1. MENU PROGRAM – START.................................................................................. 32
9.2. MENU PROGRAM – creation, administration......................................................... 35
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9.3. MENU PUMP - Setting of pump pressure ...............................................................37
9.4. MENU CONFIG - Configuration of unit....................................................................38
9.4.1.Remote control via the serial interface................................................................39
9.4.2.Keypad control or setpoint setting via the analog input.......................................40
9.4.3.AUTOSTART......................................................................................................40
9.4.4.OFF-MODE........................................................................................................41
9.4.5.ACTVAR - actuating variable..............................................................................41
9.4.6.Setting of clock and date ....................................................................................42
9.4.7.RESET – Factory settings ..................................................................................42
9.5. MENU CONTROL – Control characteristics and parameters ..................................42
9.5.1.CONTROL – Control INTERNAL / EXTERNAL...................................................44
9.5.2.SELFTUNING.....................................................................................................45
9.5.3.Dynamic internal.................................................................................................45
9.5.4.Control parameters– XP-, TN-, TV- INTERNAL..................................................46
9.5.5.COSPEED - external..........................................................................................47
9.5.6.Control parameters – XPU-, XP-, TN-, TV- EXTERNAL......................................47
9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY...........................................48
9.7. MENU ATC - Absolut Temperature Calibration.......................................................49
9.7.1.ATC SENSOR - INTERNAL / EXTERNAL..........................................................51
9.7.2.ATC STATUS - YES / NO...................................................................................51
9.7.3.CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT .............................................................52
9.7.4.Example: 3-point calibration for internal control .................................................53
9.8. MENU LIMITS - Begrenzungen...............................................................................55
9.8.1.Limits for internal control.....................................................................................56
9.8.2.Limits for external control....................................................................................56
9.9. MENU IN/OUT – Analog inputs/outputs (Option).....................................................58
9.9.1.Outputs of the connector - REG+E-PROG..........................................................61
9.9.2.Input of the connector - REG+E-PROG..............................................................62
9.9.3.ALARM-output / Stand-by-input..........................................................................64
10. Troubleshooting guide / error messages......................................................................66
11. Electrical connections..................................................................................................69
12. Remote control............................................................................................................71
12.1. Setup for remote control..........................................................................................71
12.2. Communication with a PC or a superordinated data system ...................................71
12.3. List of commands....................................................................................................72
12.4. Status messages ....................................................................................................75
12.5. Error messages.......................................................................................................75
13. Installation of electronic module...................................................................................76
14. JULABO Service – Online remote diagnosis................................................................77
15. Cleaning / repairing the unit.........................................................................................78
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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
1x10
ICC
TCF
A
TC3
RS232
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. Three menu keys facilitate adjusting
setpoints, warning and safety functions and menu functions.
;Temperature- and time-dependent processes can be stored and executed using the
integrated programmer.
;The control electronics including “ICC - Intelligent Cascade Control” automatically
adjust the heat supply to the thermal requirements of the bath.
;The TCF - Temperature Control Features give the user access to all important
temperature control parameters. This means full control of the control behavior at all
times and the ability to manually adjust or adapt the controls to the specific
application.
;Absolute Temperature Calibration (ATC3) provides high temperature stability at all
points 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 entire 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 VFD COMFORT-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
shutdown 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.
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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.
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.
If you have any questions concerning the operation of your unit or the information in this manual,
please contact us!
Contact
Safety instructions for the operator:
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.
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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!
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Operator responsibility – Safety recommendations
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2.2. EC Conformity
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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
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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Operator responsibility – Safety recommendations
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2.4. Technical specifications
Heating circulators HE-4 SE-6 SE-12 SE-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
Bridge mounted circulator SE-Z
Working temperature range °C 20 ... 300
Temperature stability °C ±0.01
Immersion depth max./min. cm 18/9
Overall dimensions (WxDxH) cm 32x17x33
Weight kg 7
HE SE
Mains power connection V/Hz 208-230 / 50/60 208-230 / 50/60
Current draw (at 208 V / 230 V) A 8 / 9 13 / 14
Mains power connection V/ Hz 100-115 / 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.
HE SE
Temperature selection digital
via keypad indication on VFD COMFORT-DISPLAY
remote control via PC indication on monitor
Temperature indication VFD COMFORT-DISPLAY
Resolution °C 0.01 0.01
ATC3 INT/EXT °C ±3 / ±9 ±3 / ±9
Temperature control ICC - Intelligent Cascade Control
Heater wattage (at 230 V) kW 2,0 3,0
Heater wattage (at 115 V) kW 1,0 ---
Electronically adj. pump capacity stages 1 ... 4 1 ... 4
Flow rate at 0 bar l/min 22 ... 26 22 ... 26
Max. pressureat 0 liters bar 0.7 0.7
Max. suction at 0 liters bar 0.4 0.4
Electrical connections: See page 11
Ambient temperature °C 5 … 40 5 ... 40
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Electrical connections:
External alarm device 24-0 V DC / max. 25 mA
Computer interface RS232 or RS485
External Pt100 sensor
Optional for HE, SE
(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
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Operating instructions
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EMC requirements
The device is an ISM device of group 1 per CISPR 11 (uses HF for internal purposes) and is
classified in class A (industrial and commercial sector).
Notice
Devices of class A are intended for the use in an industrial electromagnetic environment.
When operating in other electromagnetic environments, their electromagnetic
compatibility may be impacted.
This device is not intended for the use in living areas and cannot guarantee adequate
protection of the radio reception in such environments.
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.
This icon is used in the operating instructions to indicate flashing values or parameters
which have to be set or confirmed.
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3.3. Safety recommendations
Follow the safety instructions to avoid personal injury and property damage. Also, the
valid safety instructions for workplaces must be followed.
xOnly connect the unit to a power socket with an earthing contact (PE – protective
earth)!
xThe power supply plug serves as a safe disconnecting device from the line and
must always be easily accessible.
xPlace the unit on an even surface on a base made of nonflammable material.
xDo not stay in the area below the unit.
xMake sure you read and understand all instructions and safety precautions listed in
this manual before installing or operating your unit.
xSet the excess temperature safety installation at least 25 °C below the fire point of
the bath fluid.
xObserve the limited working temperature range when using plastic bath tanks.
xNever operate the unit without bath fluid in the bath.
xPay attention to the thermal expansion of bath oil during heating to avoid
overflowing of the fluid.
xPrevent water from entering the hot bath oil.
xDo not drain the bath fluid while it is hot!
Check the temperature of the bath fluid prior to draining (e.g., by switching the unit
on for a short moment).
xUse suitable connecting tubing.
xAvoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
xMake sure that the tubing is securely attached.
xRegularly check the tubing for material defects (e.g., for cracks).
xNever operate damaged or leaking units.
xAlways 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.
xAlways turn off the unit and disconnect the mains cable from the power source
before cleaning the unit.
xAlways empty the bath before moving the unit.
xTransport the unit with care.
xSudden jolts or drops may cause damage in the interior of the unit.
xObserve all warning labels.
xNever remove warning labels.
xNever operate units with damaged mains power cables.
xRepairs are to be carried out only by qualified service personnel.
¾Some parts of the bath tank and the pump connections may become extremely hot
during continuous operation. Therefore, exercise particular caution when touching
these parts.
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Safety notes for the user
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Caution:
The temperature controlling i.e. of fluids in a reactor constitutes normal circulator
practice.
We do not know which substances are contained within these vessels.
Many substances are:
xinflammable, easily ignited or explosive
xhazardous to health
xenvironmentally unsafe
i.e.: dangerous
The user alone is responsible for the handling of these substances!
The following questions shall help to recognize possible dangers and to reduce the
risks to a minimum.
xAre all tubes and electrical cables connected and installed?
Note:
sharp edges, hot surfaces in operation, moving machine parts, etc.
xDo dangerous steams or gases arise when heating?
Is an exhaust needed when working?
xWhat to do when a dangerous substance was spilled on or in the unit?
Before starting to work, obtain information concerning the substance and
determine the method of decontamination.
Notice: Check the safety installations at least twice a year!
xExcess temperature protection according to IEC 61010-2-010.
With a screwdriver turn back the adjustable excess temperature protection until the
shut-down point (actual temperature).
xLow level protection according to IEC 61010-2-010.
To check the function of the float, it can be manually lowered with a screwdriver for
example.
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4. Operating controls and functional elements
Front view Rear view
1 Mains power switch, illuminated
2 VFD COMFORT-DISPLAY
Header: Control indicators
Line 1: Actual value internal or external
The display is depending on the selected control mode in the
menu > Control < (internal or external).
Line 2: Working temp. setpoint, constantly S xxx.xx
Line 3: Actual value (E = external or I = internal)
Alternating with the display in line 1
Use the keys to indicate further values in line 3
PI Capacity in % - with manipulated variable set to >control<*
PS Capacity in % - with manipulated variable set to >serial<* or
>eprog<*
H Heater capacity in Watts
U Mains voltage Volts
F Flow rate in liters/minute
(providing EPROG input set to >Flowrate<)
*refer to >MENU/CONFIG< Î>CONFIG / ACTVAR>
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Operating controls and functional elements
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2.1 Control indicators in the header:
Heating / Cooling / Alarm /
Remote control
2.2 Control indicators in the header:
Temperature indication Internal or External actual value
Temperature indication in °C (°F not possible on this unit)
2.3 Display of set pump pressure stage
Four stages, can be set via the key , under >MENU - PUMP<.
4 Navigation keys
4.1 1. Key: >OK< Start / Stop (pump / heater )
2. >OK< in the menu Menu item / select submenu for setting
Save set value
Save selected parameter
A beep signals the end of setting
After the actions Start, Stop and change from VFD Display to standard
display the key is locked for a short time.
The above graph “front side” shows an example for standard display.
4.2 1. Key: >Return<Stop (pump / heater )
2. >Return< in the menu one menu level down
Correction function for parameters or values (prior to OK)
immediately back to standard display
-icon for „keep key pressed down“.
4.3 1. Key: >Up / Down <temperature – increase/decrease setpoint
Push key quickly for single steps,
Keep key pressed for fast change.
2. >Up/Down< in the menu selection of menu items / parameters
Menu keys
4.4 Key: start the menu > warning and safety values<
4.5 Key: start the menu >temperature setpoints<
4.6 Key: display of MENU structure
6 Adjustable excess temperature protection according to IEC 61010-2-010
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7
ext Pt100
Socket for external measurement and control sensor
or external setpoint programming
8 SERIAL Interface RS232: remote control via personal computer
9 Socket: control cable of JULABO refrigerated circulator
or output for alarm messages
Option: Electronic module Order No. 8 900 100
10
ALARM
Alarm output (for external alarm signal)
11
STAND-BY
Standby input (for external emergency switch-off)
12
REG+E-PROG
Programmer input and temperature recorder output
16 Mains fuses, T16A
17 Mains power cable with plug
20 Cooling coil connectors
21 Pump connectors suction pump pressure pump
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Preparations
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5. Preparations
5.1. Installation
Heating circulators
xPlace the unit on an even surface
on a base made of
nonflammable material.
Bridge mounted circulator SE-Z
xPlace the bath tank in an upright
position.
1. Remove screw on both sides (transportation safety device in
the middle).
2. Extend the bridge and place it on the bath tank.
The bridge is extendable from 310 mm to 660 mm.
3. Adjust the bridge to the width of the bath tank.
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5.2. Bath fluids
Caution:
Carefully read the safety data sheet of the bath fluid used, particularly with regard to
the fire point!
If a bath fluid with a fire point of d65 °C is used, only supervised operation is possible.
Water: The quality of water depends on local conditions.
xDue to the high concentration of lime, hard water is not suitable for temperature
control because it leads to calcification in the bath.
xFerrous water can cause corrosion - even on stainless steel.
xChloric water can cause pitting corrosion.
xDistilled and deionized water is unsuitable. Their special properties cause
corrosion in the bath, even in stainless steel.
Recommended bath fluids:
Bath fluid Temperature range
soft/decalcified water 5 °C to 80 °C
JULABO bath fluids
JULABO
Description Thermal G Thermal M Thermal HS
Order Number 10 liters 8 940 124 8 940 100 8 940 102
5 liters 8 940 125 8 940 101 8 940 103
Temperature range °C -30 ... 80 40 ... 170 20 ...250
Flash point °C -- 284 270
Fire point °C -- 306 >360
Color light yellow clear light brown
JULABO
Description Thermal H10 Thermal H20S Thermal H200
Order Number 10 liters 8 940 114 8 940 108 8 940 134
5 liters 8 940 115 8 940 109 8 940 135
Temperature range °C -20 ... 180 0 ... 220 60 ...200
Flash point °C 190 230 292
Fire point °C 216 274 334
Color clear light brown clear
See website for list of recommended bath fluids.
ATTENTION: The maximum permissible viscosity is 70 mm2/s.
Caution:
Fire or other dangers when using bath fluids that are not recommended:
Please contact JULABO before using other than recommended bath fluids.
Use only nonacidic and noncorrosive bath fluids.
JULABO assumes no liability for damage caused by the selection of an unsuitable
bath liquid.
Unsuitable bath fluids are fluids which, e.g.,
xare highly viscous
(much higher than recommended at the respective working temperature)
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Preparations
20
xhave a low viscosity and have creep characteristics
xhave corrosive characteristics or
xtend to crack.
xNo liability for use of other bath fluids!
5.3. Temperature application to external systems
Caution: Securely attach all tubing to prevent slipping.
If the circulator is operated without external system, close the pump connector (22)
with the cap nut.
Temperature application to external, closed systems
T16A
T16A
ext
Pt100 SERIAL ALARM REG+
E-PROG
STAND-BY
21 22
The circulator is used for temperature application to external,
closed systems (loop circuit) with simultaneous temperature
application in the circulator bath.
xUnscrew the M16x1 collar nuts on the pump connectors with
a 19 mm (3/4“) wrench and remove the sealing disks. Using
the collar nuts, screw on the tubing connection fittings (for
tubing 8 mm or 12 mm in diameter) delivered with the unit
and tighten firmly. (Pressure pump: 22, suction pump: 21)
xPush on the tubings, and secure with tube clamps.
xAttach the tubings to the connectors of the external closed
system, e.g., an instrument with a pressure-resistant
temperature jacket or a temperature coil, and fasten with
tube clamps to prevent slipping.
Temperature application to external, open systems
S = Suction pump connection
D = Pressure pump connection
K = Float
H = Height adjustment
The circulator is equipped with both a pressure and suction pump
for external temperature application in open systems.
Differing flow rates of the pressure and suction pumps should be
compensated. To maintain a constant liquid level, the JULABO
„D+S“ Level Adapter is recommended for the external bath tank.
The flow rate of the pressure pump will be then regulated by a
built-in float device. The liquid level may be changed by a height
adjustment on the „D+S“ Level Adapter.
Accessory: „D+S“ Level Adapter Order No. 8 970 410
Important:
LThe liquid level should be equal in the internal and external
baths (absolute height).
LIf you take out samples (for example Erlenmeyer flasks) from
the external bath, turn the circulator off with the Start/Stop key.
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