19532420.DOC
Operating Manual
Refrigerated and Heating Circulators
FS18-HD
F25-HD
F26-HD
F32-HD
F33-HD
F34-HD
F33-SD
• with proportional cooling capacity control
FP40-HD / SD
FP45-HD / SD
FP50-HD / SD
Changes without prior notification reserved
1.953.2420BU6 02/03
JULABO USA, Inc.
754 Roble Road, Suite 180
Allentown, PA 18103
(610) 231-0250 (610) 231-0260
EMAIL us: info @ julabo.com
ONLINE Catalog: www.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 principles of operating
and possibilities of our circulators. For optimum utilization of all functions, we recommend that you
thoroughly study this manual prior to beginning operation.
Safety Warnings
Take care your unit is operated only by qualified persons.
Make sure you read and understand all instructions and safety precautions listed in this manual before
installing or operating your unit. If you have any questions concerning the operation of your unit or the
information in this manual, contact JULABO.
Performance of installation, operation, or maintenance procedures other than those described in this
manual may result in a hazardous situation and may void the manufacturer's warranty.
Transport the unit with care. Sudden jolts or drops may cause damages in the interior of the unit.
Observe all warning labels.
Never remove warning labels.
Never operate damaged or leaking equipment.
Never operate the unit without bath fluid in the bath.
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.
Always empty the bath before moving the unit.
Never operate equipment with damaged mains power cables.
Refer service and repairs to a qualified technician.
In addition to the safety warnings listed above, warnings are posted throughout the
manual. These warnings are designated by an exclamation mark inside an equilateral
triangle. Read and follow these important instructions. Failure to observe these
instructions can result in permanent damage to the unit, significant property damage,
personal injury or death.
Printed in Germany
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TABLE OF CONTENTS
1. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS.................................. 4
2. QUALITY MANAGEMENT SYSTEM........................................................................... 6
3. UNPACKING AND CHECKING .................................................................................. 6
4. DESCRIPTION .............................................................................................................. 6
5. PREPARATIONS .......................................................................................................... 7
5.1. Installation................................................................................................................ 7
5.2. Bath liquids and tubing........................................................................................... 7
5.3. Filling / draining....................................................................................................... 9
5.4. Temperature application to external systems....................................................10
6. OPERATING PROCEDURES................................................................................... 12
6.1. Power connection.................................................................................................12
6.2. Switching on - Start/Stop .....................................................................................12
6.3. Setting the temperatures .....................................................................................14
6.4. Warning functions .................................................................................................15
6.5. Setting the safety temperature (with shutdown function) ..................................16
6.6. Internal / external control.......................................................................................17
6.7. PID control parameters........................................................................................ 18
7. MENU FUNCTIONS.................................................................................................... 19
7.1. ATC - Absolute Temperature Calibration..........................................................20
7.2. Id - Identification.................................................................................................... 21
7.3. h - Heater capacity ...............................................................................................22
7.4. r - Remote..............................................................................................................22
7.5. br - Baud rate ........................................................................................................ 23
7.6. P - Parity................................................................................................................23
7.7. H - Handshake...................................................................................................... 23
7.8. Sb - Stand-By........................................................................................................ 23
7.9. Pr - Programmer type ..........................................................................................23
7.10. Ad - Address .......................................................................................................... 24
7.11. Signal level RS232/RS485...................................................................................24
8. TROUBLESHOOTING GUIDE / ERROR MESSAGES..........................................25
9. SAFETY RECOMMENDATIONS..............................................................................27
10. ELECTRICAL CONNECTIONS.................................................................................28
11. REMOTE CONTROL .................................................................................................. 31
11.1. Setup for remote control........................................................................................31
11.2. Communication with a PC or a superordinated data system ...........................31
11.3. List of commands...................................................................................................33
11.4. Status messages / error messages..................................................................... 36
12. MAINTAINING THE COOLING PERFORMANCE...................................................38
13. CLEANING THE UNIT, MAINTENANCE..................................................................39
14. TECHNICAL SPECIFICATIONS ............................................................................... 40
15. WARRANTY CONDITIONS ........................................................................................ 44
Operating controls and functional elements
4
1. Operating controls and functional elements
1a/1b Mains power switch, illuminated
Circulator/Cooling machine
2 Start / stop key
3 Working temperature T1
4 Working temperature T2
5 High temperature warning limit
6 Low temperature warning limit
7 Safety temperature
8 Adjustable excess temperature protection
(safety temperature)
9 Display of internal/external actual value
10 Control type: internal/external control
11 Control parameters Xp, Tn, Tv
12 MULTI-DISPLAY (LED) temperature indication
Indicator lightsExt - external actual value (ext Pt100)
Xp, Tn, Tv - control parameters
Eprog - analog programmer signal
RS232 - remote control with a PC
Indicator light - Alarm
Indicator light - Cooling (not operational)
Indicator light - Heating
13 Cursors left/right
14 Edit keys (increase/decrease setting)
15 Enter key (store/quitting the audible signal)
19 Drain tap with drain port
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Rear
20 RS232
RS485
Interface RS232/RS485
21 REG+E-PROG
Programmer input and temperature recorder output
22a/22b
Connector: control cable of JULABO refrigerated circulator
23 STAND-BY
Stand-by input (for external emergency switch-off)
24 ALARM
Alarm output (for external alarm signal)
25
Connector for external measurement and control sensor
26
Connectors for solenoid valve and/or supplementary pump
230 V / 115 V
27
Fuses M 1.25 A / M 2.5 A (for connectors 26)
28a/28b
Mains fuses: Circulator
Cooling machine
29a/29b Mains power cable with plug: Circulator/Cooling machine
30 + 31
Pump connectors suction pump pressure pump
33
Selector dial for cooling machine (only on F25, F34)
Position „1“ for operation with circulator
34 Built-in mains outlet for connection of circulator
Only for water cooled models: Cooling water OUTLET and INLET
Quality Management System
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2. Quality Management System
The JULABO Quality Management System:
Development, production and distribution of temperature application instruments for
research and industries conform to the requirements according to DIN EN ISO
9001:1994-08.
Certificate Registration No. QA 051004008.
3. Unpacking and checking
Unpack the circulator and accessories and check for damages incurred during transit. These should be
reported to the responsible carrier, railway, or postal authority, and a request for a damage report
should be made. 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.
4. Description
The JULABO refrigerated circulators employ a circulator head and a cooling machine with bath tank,
and have been designed for heating and cooling of liquids in a bath tank.
Besides the cooling aggregate, the main functional elements are the heater, circulation pump, and control
electronics. An electronic proportional temperature control (PID characteristic) adapts the heat supplied
to the thermal requirements of the bath.
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 four temperature values to be stored and indicated on the
MULTI-DISPLAY (LED): working temperatures T1 and T2, high and low temperature warning limits.
The safety value for excess temperature protection, a safety installation independent from the control
circuit, is adjustable on the front with simultaneous indication on the MULTI-DISPLAY (LED).
The RS232/RS485 port permits modern process engineering without additional interface, directly online, from the circulator to your application equipment.
Besides the digital interface, additionally analog connectors are provided, such as for Pt100 external
sensor, analog programmer input, temperature recorder output and others.
The circulator conforms to the safety requirements specified by DIN 12 876 (safety class III), as well as
DIN 58 966, and the guideline for first voltage range EN 61010.
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5. Preparations
5.1. Installation
• Place the unit in an upright position.
• Keep at least 20 cm of open space on the front and rear venting
grids.
• Do not set up the unit in the immediate vicinity of heat sources
and do not expose to sun light.
• Before operating the unit after transport, wait about one hour
after setting it up. This will allow any oil that has accumulated
laterally during transport to flow back down thus ensuring
maximum cooling performance of the compressor.
• Only for water cooled models:
Ensure circulation of cooling water by connecting the tubing to
cooling water inlet and outlet on the rear of the refrigerated
circulator.
Cooling water connectors: ½"
Cooling water see page 43
5.2. Bath liquids and tubing
Carefully read the safety data sheet of the bath liquid used, particulary with
regard to the fire piont!
If Ethanol is used, only supervised operation is possible.
• Recommended bath liquids:
Bath liquids Temperature range Flash point fire point
Thermal M +50 °C ... 170 °C >275 °C >320 °C
Thermal H +50 °C ... 250 °C >280 °C >350 °C
Thermal HY -60 °C ... 50 °C >62 °C >110 °C
Ethanol (C2H5OH) -100°C bis 0 °C 12 °C
deionized water 5 °C bis 80 °C
ATTENTION: The maximum permissible viscosity is 30 mm2 x s
-1.
Preparations
8
Please contact JULABO before using other than recommended bath liquids.
JULABO takes no responsibility for damages caused by the selection of an
unsuitable bath liquid.
Unsuitable bath liquids are liquids which e.g.
• are very highly viscous
(much higher than 30 mm2 x S-1 at the respective working temperature)
• have corrosive characteristics or
• tend to cracking.
Order No. Bath liquid
8 940 100
8 940 101
8 940 102
8 940 103
8 940 104
8 940 105
Thermal M
Thermal M
Thermal H
Thermal H
Thermal HY
Thermal HY
10 liters container
5 liters container
10 liters container
5 liters container
10 liters container
5 liters container
• Recommended tubing:
Temperature range
CR tubing
Viton tubing
Metal tubing
-20 °C to +120 °C
-50 °C to +200 °C
-100 °C to +350 °C
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5.3. Filling / draining
Filling
Take care that no liquid enters the interior of the circulator.
• Recommended maximum filling level with water as bath liquid:
25 mm below the tank rim
• Recommended maximum filling level with bath oils:
40 mm below the tank rim
After filling, immerse the samples in the bath or place the lid on the
bath, in case the opening is not to be used.
FS18
• Recommended maximum filling level is 5 mm.
Note:
When switching the circulator on, the bath liquid may lie below the
required minimum level due to liquid pumped into the external
system.
ATTENTION: The volume of bath oils will increase due to thermal expansion
when the bath temperature rises.
Exercise CAUTION when emptying hot bath liquids!
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Draining
• Turn off the circulator and cooling machine.
• Hold the venting grid, pull out and remove.
• Slide a short piece of tube onto the drain port and hold it into a
pail.
• Unscrew the drain tap (19) and empty the unit completely.
• Tighten the drain tap.
Store and dispose the used bath liquid according to the laws
for environmental protection.
Preparations
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5.4. Temperature application to external systems
Temperature application to external, closed systems
The circulator is used for temperature application to external,
closed systems (loop circuit) with simultaneous temperature
application in the circulator bath.
• Unscrew the M 16 x 1 collar nuts on the pump connectors
(pressure pump , suction pump ) 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.
• Push on the tubings, and secure with tube clamps.
• Attach 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
K
S
D
H
S = Suction pump connection
D = Pressure pump connection
K = Float
H = Height adjustment
These circulators are 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.
Order No. 8 970 410 "D+S" Level Adapter
When working at temperatures below 0 °C and using the "D+S" Level Adapter do
not use oil as the bath liquid. Condensing air will result in the formation of ice and
thus affects the function of the float.
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Return flow safety device
If the liquid levels in the circulator bath and the external system are
at different heights, overflowing must be prevented after the power
has been turned off.
Flood hazard!
For this reason, solenoid valves for loop circuit or shut-off valves
can be integrated in the loop circuit.
Connect the valve (230 V / 115 V) to the connector (26).
Order No. Description
8 980 701 Solenoid valve for loop circuit up to +100 °C
8 970 456 Shut-off valve (suitable up to +90 °C)
8 970 457 Shut-off valve (suitable up to +250 °C)
Fasten tubing to prevent slipping.
Supplementary pump
Both connectors (26) may be used for operating supplementary
pumps.
Control (switching on/off) is effected by presssing the start/stop
key or via the digital interface with the start/stop command.
Check to make sure that the line voltage matches the supply voltage specified
on the identification plate (230 V or 115 V).
Operating procedures
12
6. Operating procedures
6.1. Power connection
Connect the unit only to grounded mains power socket!
Do not use 2-pole adapters!
We disclaim all liability for damage caused by incorrect line voltages or if the
unit has not been connected to ground.
Check to make sure that the line voltage matches the supply
voltage specified on the identification plate.
Deviations of ±10 % are permissible
• Connect the circulator with mains power cable (29a) to the
mains outlet (34).
• Connect the control cable (22) between the connectors (22a,
22b).
• Connect the refrigerated circulator with mains power cable
(29b) to the mains socket.
6.2. Switching on - Start/Stop
Switching on:
Circulator and cooling machine may be turned on and off with
separate mains switches. The integrated control light will illuminate
to indicate that power has beeen applied.
The unit performs a self-test. All segments of the 4-digit MULTIDISPLAY (LED) and all indicator lights will illuminate.
Then the software version (example: n 1.01) appears. The display
"OFF" or "r OFF" indicates the unit is ready to operate (stand-by
mode).
The circulator enters the operating mode activated before switching
the circulator off:
keypad control mode (manual operation) or
remote control mode (operation via personal computer).
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Start:
• Press the start/stop key.
- The MULTI-DISPLAY (LED) indicates the actual bath
temperature. (example: 21.0 °C)
- An illuminated indicator light in the "T1" or "T2" key indicates
the activated working temperature.
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. In case of manual operation, the start/stop key has to be pressed to
restart operation. The temperature values which were entered via the keypad of the
circulator remain in memory.
If the circulator is operated in remote control mode, the order to start and all values
which have to be adjusted, must be resent via interface by the personal computer.
NOTE:
The circulator has been configured and supplied by JULABO according to N.A.M.U.R.
recommendations. This means for the start mode, that the unit must enter a safe operating state after a
power failure (non-automatic start mode). This safe operating state is indicated by „OFF“ or „rOFF“,
resp. on the MULTI-DISPLAY (LED). A complete shutdown of the main functional elements such as
heater and circulation pump is effected simultaneously.
Should such a safety standard not be required, the AUTOSTART function (automatic start mode) may
be activated, thus allowing the start of the circulator directly by pressing the mains power switch or using
a timer.
Automatic / non-automatic start mode
Activating/deactivating AUTOSTART
Press enter and the start/stop key at the same
time,
and turn on the circulator with the mains power switch.
For a short while the MULTI-DISPLAY indicates the effective start
mode:
AUTOSTART on.
AUTOSTART off.
Operating procedures
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Warning:
For supervised or unsupervised operation with the AUTOSTART function, avoid
any hazardous situation to persons or property.
The circulator does no longer conform to N.A.M.U.R. recommendations.
Take care you fully observe the safety and warning functions of the circulator.
If the setpoint is given via the serial interface, no AUTOSTART is possible.
6.3. Setting the temperatures
Setting the working temperature "T1":
Press the setpoint key
.
The indicator light blinks and the value previously set appears
on the MULTI-DISPLAY (LED).
Use the cursor keys to move left or right on the
display until the numeral you wish to change is blinking.
Use the increase/decrease arrows to change the
selected numeral (-, 0, 1, 2, 3, ... 9).
Press enter to store the selected value
(example: -15.0 °C).
The working temperature is maintained constant after a short heatup time (e. g. -15.0 °C).
Setting the working temperature "T2":
Press the setpoint key .
Same procedure
as with "T1"
(example: 25.0 °C).
Selecting the working temperature:
• Press the setpoint key and then enter .
• Press the setpoint key and then enter .
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