Julabo F12-ED User manual

19510247.doc 16.09.08
English
Operating
manual
Refrigerated and Heating
Circulators
F12-ED F25-ED
F26-ED F34-ED
ED
°C
°C
50
80
120
0
20
F25
Innovative Temperature Technology
JULABO Labortechnik GmbH
77960 Seelbach / Germany
+49 (0) 7823 / 51-0
+49 (0) 7823 / 24 91
|[email protected]
Þwww.julabo.de
1.951.0247BE1 09/08

2
Contents
Operating manual Pages 2 to 11
Operating instructions Pages 12 to 27
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.
Quality Management System
ISO 9001
2000
W
e
a
r
e
c
e
r
t
i
f
i
e
d
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 9001:2000.
Certificate Registration No. 01 100044846
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.
Printed in Germany
Changes without prior notification reserved

ED
3
TABLE OF CONTENTS
Operating manual ..........................................................................................................4
1. Use according to intended purpose .......................................................................4
1.1. Description .........................................................................................................4
2. Operator responsibility – Safety recommendations...............................................5
2.1. Disposal..............................................................................................................7
2.2. EC Conformity....................................................................................................7
2.3. Warranty conditions............................................................................................8
2.4. Technical specifications .....................................................................................9
Operating instructions..................................................................................................12
3. Operating controls and functional elements.........................................................12
4. Safety notes for the user......................................................................................14
4.1. Explanation of safety notes..............................................................................14
4.2. Explanation of other notes ...............................................................................14
4.3. Safety recommendations..................................................................................15
5. Preparations.........................................................................................................17
5.1. Installation........................................................................................................17
5.2. Bath fluids.........................................................................................................18
5.3. Tubing ..............................................................................................................19
5.4. Filling / Draining................................................................................................20
5.5. Temperature application to external systems ..................................................21
5.6. Adjusting the pump flow...................................................................................21
6. Operating procedures ..........................................................................................22
6.1. Power connection.............................................................................................22
6.2. Switching on / Start - Stop................................................................................22
6.3. Automatic / non-automatic start mode .............................................................23
6.4. Setting the temperatures..................................................................................24
6.5. Excess temperature protection ........................................................................24
6.6. Low liquid level protection................................................................................24
7. Troubleshooting guide / Error messages.............................................................25
8. Cleaning / repairing the unit.................................................................................26

Operating manual
4
Operating manual
1. Use according to intended purpose
JULABO circulators have been designed for temperature application to specific fluids
in a bath tank. The units provide pump nozzles for temperature application to an
external system (loop circuit).
JULABO circulators are not conceived for direct temperature application
to food and luxury articles or pharmaceutical and medico-technical
products. Direct temperature application means: Unprotected contact of
the object with the bath medium (bath fluid).
1.1. Description
PID1
IEC
EN
DIN
The circulators are operated via the splash-proof keypad. The
implemented microprocessor technology allows to set and to store the
setpoint that can be indicated on the LED temperature display.
The PID temperature control adapts the heat supplied to the thermal
requirements of the bath.
Safety installations conforming to IEC 61010-2-010
The excess temperature protection is a safety installation independent
from the control circuit.
The safety value is set using a tool (screwdriver).
If the low level protection device is triggered, a complete shutdown of
the heater and circulating pump is effected.
The circulator conforms to the relevant requirements specified by
European guidelines.

ED
5
2. Operator responsibility – Safety recommendations
The products of JULABO Labortechnik GmbH warrant a safe operation if installation,
operation and maintenance is carried out according to common safety regulations. This
section informs you about potential dangers that may arise from operating the
circulator and also mentions the most important safety precautions.
Persons:
The operator is responsible for the qualification of the personnel operating the units.
The operator should be constantly informed about the dangers involved with their job
activities as well as preventive actions.
Make sure all persons expected to carry out operation, installation and maintenance of
the unit read and understand the safety information and operating instructions.
If you have any questions concerning the operation of your unit or the information in
this manual, please contact us!
Contact: JULABO Labortechnik GmbH
Eisenbahnstraße 45
77960 Seelbach / Germany
07823 / 51-0
07823 / 2491
|[email protected]
Þwww.julabo.de
Handling:
Nevertheless, avoid strikes to the housing, vibrations, damages to the keypad foil
(keys, display) or contamination.
Make sure the product is regularly checked for proper condition.
Regularly check (at least every 2 years) the proper condition of the mandatory,
warning, prohibition and safety labels.
Take care that the mains supply features a low impedance to avoid any negative
affects on the instrument being operated in 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 influence other units with components susceptible to
magnetic fields (e.g. a monitor). We recommend to keep a minimum distance of 1
m.
Permissible ambient temperature: max. 40 °C, min. 5 °C.
Permissible relative air humidity: 50 % (40 °C).
Do not store in an aggressive atmosphere. Protect from contaminations.
Do not expose to sunlight.

Operator responsibility – Safety recommendations
6
Operation:
Only qualified personnel is authorized to perform configuration, installation,
maintenance and repairs of the circulator.
Routine operation can also be carried out by untrained personnel who should however
be instructed by trained personnel.
Use:
The bath may not be filled with flammable materials. Fire hazard!
Only use recommended materials (bath fluids). Only use recommended materials (bath
fluids). Only use non-acid and non corroding materials.
When using hazardous materials, the user must attach the enclosed safety labels to
the front of the unit so they are well visible:
Warning label W00:
Colors:
yellow, black
Danger area.
Attention! Observe instructions.
(operating manual, safety data sheet)
Mandatory label
M018
Colors: blue, white
Carefully read the user information prior to
beginning operation
Scope: EU
Semi S1-0701
Table A1-2 #9
Carefully read the user information prior to
beginning operation
Scope: 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.

ED
7
2.1. Disposal
This unit contains the refrigerants R134a – at this time considered not to have any
negative effects on the ozone layer. However, during the long operating period of the
unit, disposal prescriptions may change. So only qualified personnel should take care
of disposal.
Valid in EU countries
Directive 2002/96/EC of the European Parliament and of the Council
of 27 January 2003 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!
2.2. EC Conformity
The products described in the operating instructions conform to the
requirements of the following European guidelines:
Low voltage regulations with respect to legal harmonization of the member countries
concerning electric devices for use within certain voltage limits.
EMC guideline with respect to legal harmonization of the member countries
concerning electromagnetic compatibility.
JULABO Labortechnik GmbH
Eisenbahnstr. 45
77960 Seelbach / Germany

Operator responsibility – Safety recommendations
8
2.3. Warranty conditions
JULABO Labortechnik 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 Labortechnik GmbH’s original invoice.
JULABO Labortechnik 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.

ED
9
2.4. Technical specifications
F12-ED F25-ED
Working temperature range °C -20 ... 100 -28 ... 100
Temperature stability °C ±0,03 ±0,03
Temperature selection digital
Temperature indication LED
Resolution °C 0.1
Temperature control PID1
Heater wattage (at 230 V) kW 2,0 2,0
Heater wattage (at 115V) kW 1.0 1.0
Cooling capacity °C +20 0 -20 +20 0 -20
Medium ethanol W 160 100 20 260 200 60
Refrigerant R134a R134a
Circulating pump:
discharge, max.at 0 bar l/min 15 15
pressure, max. at 0 l bar 0.35 0.35
Overall dimensions (WxDxH) cm 20x36x56 23x42x61
Bath opening (WxL) cm 13x15 12x14
Bath depth cm 13 14
Filling volume liters 3 ... 4,5 3 ... 4,5
Weight kg 22 30
Ambient temperature °C 5 ... 40 5 ... 40
Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50 207-253 / 50
Current input (at 230 V) A 11 (CH 9 + 1) 12 (CH 9 + 2)
Mains power connection 230 V/60 Hz V/ Hz 207-253 / 60 207-253 / 60
Current input (at 230 V) A 11 12
Mains power connection 115 V/60 Hz V/ Hz 103-127 / 60 103-127 / 60
Current input (at 115 V) A 12 13
Mains power connection 100 V/50-60 Hz V/ Hz 90-120 / 50-60 90-120 / 50-60
Current input (at 100 V) A 15 13
ll measurements have been carried out at:
rated voltage and frequency ambient temperature: 20 °C
Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations
10
F26-ED F34-ED
Working temperature range °C 28 ... 100 -30 ... 100
Temperature stability °C ±0,03 ±0,03
Temperature selection digital
Temperature indication LED
Resolution °C 0.1
Temperature control PID1
Heater wattage (at 230 V) kW 2,0 2,0
Heater wattage (at 115V) kW 1.0 1.0
Cooling capacity °C +20 0 -20 +20 0 -20
Medium ethanol W 260 200 60 450 320 140
Refrigerant R134a R134a
Circulating pump:
discharge, max.at 0 bar l/min 15 15
pressure, max. at 0 l bar 0.35 0.35
Overall dimensions (WxDxH) cm 42x42x42 38x58x62
Bath opening (WxL) cm 12x14 24x30
Bath depth cm 14 15
Filling volume liters 3 ... 4,5 14 ... 20
Weight kg 30 41
Ambient temperature °C 5 ... 40 5 ... 40
Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50 207-253 / 50
Current input at (230 V) A 12 12
Model Schweiz (bei 230 V) A
Mains power connection 230 V/60 Hz V/ Hz ------ 207-253 / 60
Current input at (230 V) A ------ 13
Mains power connection 115 V/60 Hz V/ Hz 103-127 / 60 103-127 / 60
Current input at (115 V) A 13 14
Mains power connection 100 V/60 Hz V/ Hz 90-120/50-60 ------
Current input at (100 V) A 13 ------
All measurements have been carried out at:
rated voltage and frequency ambient temperature: 20 °C
Technical changes without prior notification reserved.

ED
11
Safety installations according to IEC 61010-2-010:
Excess temperature protection adjustable from 20 to 120 °C
Low liquid level protection float switch
Classification according to DIN 12876-1 class I
Alarm indication optical + audible (permanent)
Environmental conditions according to EN 61 010, part 1:
Use only indoor.
Altitude up to 2000 m - normal zero.
Ambient temperature: +5 ... +40 °C (for storage and transportation)
Air humidity:
Max. rel. humidity 80 % for temperatures up to +31 °C,
linear decrease down to 50 % relative humidity at a temperature of +40 °C
Max. mains fluctuation of ±10 % are permissible.
Protection class according to EN 60 529 IP21
The unit corresponds to Class I
Overvoltage category II
Pollution degree 2
Caution:
The unit is not for use in explosive atmosphere
Standards for interference resistance according to EN 61326-1
This unit is an ISM device classified in Group 1 (using high frequency for internal
purposes) Class A (industrial and commercial range).

Operating instructions
12
Operating instructions
3. Operating controls and functional elements
Front view Rear view
ED
°C
°C
50 80
1200
20
1b
1a
7
1
3
11
12
F25
15
A
M
P
15
A
M
P
10a
14a
14b
15
8a
17
10b
8b
16

ED
13
1a
1b
Mains power switch, illuminated for circulator
Mains power switch, illuminated for cooling machine
2 Edit keys (increase/decrease setting)
3 Enter key (store)
4 LED temperature display, menu indication
5 Control indicator –Heating
6 Control indicator – Alarm
7
°C
50 80
1200
20
Adjustable excess temperature protection
according to IEC 61010-2-010
8a
15
A
M
P
Circulator: Mains circuit breakers (resettable) 15 A
8b
Mains fuses for cooling machine: T 10,0 A, D5 x 20 mm
10a
10b Mains power cable with plug for circulator Mains power cable with plug Kältemaschine
11 Drain port (only F25, F26, F34)
12 Drain tap (F12, F25, F26, F34)
13 Venting grid, removable
14a
14b Pump connector for feed Pump connector for return
15
Connector: Cooling machine control (only F25, F26, F34)
(not in use for operation with ED circulator)
16 Selector dial for cooling machine (only F25, F26, F34)
Position "0" for operation with ED circulator.
17 Built-in mains outlet for connection of circulator

Safety notes for the user
14
4. Safety notes for the user
4.1. Explanation of safety notes
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. „Warning of a dangerous
situation (Attention ! Please follow the documentation).“
The danger is described according to an alarm keyword.
Read and follow these important instructions.
Warning:
Describes a possibly highly dangerous situation. If this is not avoided,
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 damage can 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.
4.2. Explanation of other notes
Note!
Wants to draw your attention to something particular.
Important!
Describes useful information for the operation and the user.

ED
15
4.3. Safety recommendations
Follow the safety recommendations to prevent damage to persons or
property. Further, the valid safety instructions for working places must be
followed.
•Only connect the unit to a power socket with earthing contact (PE –
protective earth)!
•The power supply plug serves as safe disconnecting device from the
line and must be always freely accessible.
•Operation is permitted with non-flammable liquids only.
•Place the instrument on an even surface on a pad made of non-
inflammable material.
•Do not stay in the area below the unit.
•Make sure you read and understand all instructions and safety
precautions listed in this manual before installing or operating your
unit.
•Never operate the unit without bath fluid in the bath.
•Check the filling level of the bath fluid from time to time. Pump and
heater must always be fully covered with the bath fluid!
•The instrument is not suited for unsupervised continuous operation.
•Do not drain the bath fluid while it is hot!
Check the temperature of the bath fluid prior to draining (by switching
the unit on for a short moment for example).
•Employ suitable connecting tubing.
Make sure that the tubes are securely attached.
•Never operate damaged or leaking equipment.
•Always turn off the unit and disconnect the mains cable from the
power source before performing any service or maintenance
procedures, or before moving the unit.
•Always empty the bath before moving the unit.
•Never operate equipment with damaged mains power cables.
•Some parts of the bath cover and the pump connections may become
extremely warm during continuous operation. Therefore, exercise
particular caution when touching these parts.

Safety notes for the user
16
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:
•inflammable, easily ignited or explosive
•hazardous to health
•environmentally 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.
•Are all tubes and electrical cables connected and installed?
Note:
sharp edges, hot surfaces in operation, moving machine parts, etc.
•Do dangerous steams or gases arise when heating?
Is an exhaust needed when working?
•What 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!
•Excess 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).
•Low 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.

ED
17
5. Preparations
5.1. Installation
•Place the unit in an upright position.
F34-ED: The circulator fitted with a stainless steel bridge
is placed on on the back of the bath tank leaving the bath
open on the front side.
•Set selector dial for cooling machine (16) in position "0"
for operation with ED circulator. (only F25, F26,
F34)
•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.
•
•The place of installation should be large enough and
provide sufficient air ventilation to ensure the room does
not warm up excessively because of the heat the
instrument radiates to the environment. (Max. permissible
ambient temperature: 40 °C).
With regard to a disturbance in the cooling loop (leakage),
the guideline EN 378 prescribes a certain room space to
be available for each kg of refrigerant.
The necessary amount of refrigerant is specified on the
type plate.
> For 0.25 kg of refrigerant R134a, a room space of 1 m3
is required.

Preparations
18
5.2. Bath fluids
Caution:
No liability for use of other bath fluids!
Do not use flammable bath fluids!
Water: The quality of water depends on local conditions.
•Due to the high concentration of lime, hard water is not suitable for
temperature control because it leads to calcification in the bath.
•Ferrous water can cause corrosion - even on stainless steel.
•Chloric water can cause pitting corrosion.
•Distilled and deionized water is unsuitable. Their special properties
cause corrosion in the bath, even in stainless steel.
•Danger of freezing at working temperatures <5 °C.
Glycol: - Low toxicity - Strictly observe the safety data and handling
instructions from the manufacturer.
Water/glycol mixture:
Water evaporates and thus the mixture may become flammable. In the
heating phase, a fire may be caused due to the hot surface temperature
of the heater.
Fill up water in time and check the mixing ratio in regular intervals (e.g.
using an appropriate device).
•Recommended bath fluid:
Notice:
Please contact JULABO before using other than recommended bath
fluids. Only use non-acid and non corroding bath fluids.
JULABO takes no responsibility for damages caused by the selection of
an unsuitable bath fluid.
Unsuitable bath fluids are liquids which e.g.
•are very highly viscous
(much higher than 30 mm2/s at the respective working temperature)
•have corrosive characteristics or
•tend to cracking.
Bath liquids Temperature range
soft/decalcified water
mixture water/glycol, mixture 1:1
Thermal G
5 °C ... 90 °C
-30 °C ... 50 °C
-30 °C ... 80 °C
Bath liquids Order No.
Thermal G 10 Liters
Thermal G 5 Liters 8 940 124 8 940 125

ED
19
5.3. Tubing
Recommended tubing:
Order No. Length Temperature range
8930008 1 m CR®tubing 8 mm ID -20 °C ... 120 °C
8930010 1 m CR®tubing 10 mm ID -20 °C ... 120 °C
8930108 1 m Viton tubing 8 mm ID -50 °C ... 200 °C
8930110 1 m Viton tubing10 mm ID -50 °C ... 200 °C
8930410 1 m Insulation for tubing 8 mm ID or 10 mm ID -50 °C ... 100 °C
Warning: Tubing:
At high working temperatures the tubing used for temperature application
and cooling water supply represents a danger source.
A damaged tubing line may cause hot bath fluid to be pumped out within
a short time.
This may result in:
•Burning of skin
•Difficulties in breathing due to hot atmosphere
Safety recommendations
•Employ suitable connecting tubing.
•Make sure that the tubing is securely attached.
•Avoid sharp bends in the tubing, and maintain a sufficient distance
from surrounding walls.
•Regularly check the tubing for material defects (e.g. for cracks).
•Preventive maintenance: Replace the tubing from time to time.

Preparations
20
5.4. Filling / Draining
Notice: Filling
Check the filling level of the bath fluid from time to time. Pump and
heater must always be fully covered with the bath fluid!
The instrument is not suited for unsupervised continuous operation.
Filling
•Take care that no liquid enters the interior of the
circulator..
•Recommended maximum filling level with water as bath
liquid: 20 mm below the tank rim
LAfter filling, immerse the samples in the bath or place
the lid on the bath, in case the opening is not to be
used..
1211
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 (11) and hold it into a pail. (only F25,
F26, F34)
•Unscrew the drain tap (12) and empty the
unit completely.
•Tighten the drain tap.
Notice: Draining
Do not drain the bath fluid while it is hot!
Recommendation: Temperature range 5 °C to 40 °C
Check the temperature of the bath fluid prior to draining (by switching the
unit on for a short moment, for example).