Julabo 25-ME, F26-ME, F32-ME, F33-ME, F34-ME Operating Manual

...

English

www.julabo.com

Operating Manual

Refrigerated and Heating Circulators

F25-ME F26-ME F32-ME F33-ME F34-ME

FP40-ME FP50-ME

water-cooled

FPW50-ME

Translation of the Original Operating Manual

19530512-V1.doc 14.03.16

JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109 Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info.us@ julabo.com

Temperature control devices for research and industry are developed,

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

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 to the full extent for us to guarantee our full support of your claim for protection against loss from concealed damage. The form required for filing such a claim will be provided by the carrier

1.953.0512-V3 03/16 Printed in Germany Changes without prior notification reserved

Important: keep operating manual for future use

TABLE OF CONTENTS

Operating manual ......................................................................................................................... 5

1. Intended use .......................................................................................................................... 5

1.1. Description ........................................................................................................................ 5

2. Operator responsibility – Safety recommendations ................................................................ 6

2.1. Disposal ............................................................................................................................ 8

2.2. Technical specifications .................................................................................................... 9

2.3. Cooling water connection .................................................................................................13

Operating instructions .................................................................................................................14

3. Safety notes for the user .......................................................................................................14

3.1. Explanation of safety notes ..............................................................................................14

3.2. Explanation of other notes ................................................................................................14

3.3. Safety recommendations ..................................................................................................15

4. Operating controls and functional elements ..........................................................................17

4.1. Circulator..........................................................................................................................17

4.2. Cooling Machine ..............................................................................................................19

5. Preparations .........................................................................................................................20

5.1. Installation ........................................................................................................................20

5.2. Bath fluids ........................................................................................................................20

5.3. Temperature application to external systems ...................................................................21

5.3.1. Tubing .........................................................................................................................22

5.4. Filling / draining ................................................................................................................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

6.2.2. Switching on the Cooling Machine ...............................................................................25

7.1. Using the pre-settings in the

Setting of temperatures ...........................................................................................26

menu .....................................................................26

7.2. Direct setting of temperatures ..........................................................................................27

Safety installations, warning functions .....................................................................28

8.1. Excess temperature protection .........................................................................................28

8.1.1. Early warning system, low level protection ...................................................................29

8.2. Switch-over from warning to shutdown function................................................................30

8.3. Over and Sub temperature warning function .................................................................... 31

Menu functions........................................................................................................ 32

9.1. MENU PROGRAM – START ........................................................................................... 33

9.2. MENU PROGRAM – creation, administration ................................................................... 35

9.3. MENU PUMP – Setting of pump pressure ........................................................................ 37

9.4. MENU CONFIG – Configuration of unit ............................................................................ 38

9.4.1. REMOTE ..................................................................................................................... 39

9.4.2. AUTOSTART ............................................................................................................... 39

9.4.3. OFF-MODE ................................................................................................................. 40

9.4.4. Setting of clock and date ............................................................................................. 40

9.4.5. RESET – Factory settings ........................................................................................... 40

9.5. MENU CONTROL – Control characteristics and parameters ........................................... 41

9.5.1. CONTROL – Control INTERNAL / EXTERNAL............................................................ 42

9.5.2. Dynamic internal .......................................................................................................... 43

9.5.3. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ............................................... 43

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ........................................................... 44

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY .................................................... 45

9.7. MENU ATC - Absolut Temperature Calibration ................................................................ 46

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ................................................................... 48

9.7.2. ATC STATUS - YES / NO ............................................................................................ 48

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT ......................................................................

9.7.4. Example: 3-point calibration for internal control .......................................................... 50

9.8. MENU LIMITS .................................................................................................................. 52

9.8.1. Limits for internal control .............................................................................................. 53

9.8.2. Limits for external control ............................................................................................. 53

10. Troubleshooting guide / error messages ............................................................................... 55

11. Electrical connections ........................................................................................................... 58

12. Remote control ..................................................................................................................... 59

12.1. Setup for remote control ................................................................................................... 59

12.2. Communication with a PC or a superordinated data system ............................................ 60

12.3. List of commands ............................................................................................................. 61

12.4. Status messages ............................................................................................................. 63

12.5. Error messages ................................................................................................................ 63

13. JULABO Service – Online remote diagnosis ......................................................................... 65

14. Cleaning / repairing the unit .................................................................................................. 66

15. WARRANTY PROVISIONS .................................................................................................. 67

JULABO circulators are not suitable for direct temperature control of foods, semi-

medium (bath fluid).

1x10

PID3

ATC

RS232

Pt100

PUMP

SMART

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).

luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath

1.1. Description

 The circulators are operated via the splash-proof keypad. The microprocessor

technology allows different values to be set, stored, and displayed on the VFD COMFORT-DISPLAY. Three menu keys facilitate the adjustment of setpoints, warning and safety functions, and menu functions.

 Temperature- and time-dependent processes can be stored and executed using

the integrated programmer.

 The adjustable PID cascade temperature control automatically adjusts the heat

supply to the thermal requirements of the bath.

 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:

RS232 interface for modern process technology without an additional interface. Connection for external Pt100 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 excess temperature protection according to IEC 61010-2-010 is a safety

device independent from the control circuit. Its safety value can be displayed and adjusted 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 according to IEC 61010-2-010 triggers a safety shutdown of the main functional elements.

 Intelligent pump system: the pump capacity (electronically adjustable via the motor

speed) can be adapted to different conditions for internal and external temperaturecontrol applications.

Operator responsibility – Safety recommendations

2. Operator responsibility – Safety recommendations

The products of JULABO ensure safe operation when installed, operated, and maintained according to common safety regulations. This section explains the potential dangers that may arise when operating the circulator and also specifies the most important safety precautions to preclude these dangers as far as possible.

 The operator is responsible for the qualification of the personnel operating the units.  The personnel operating the units should be regularly instructed about the dangers involved with

their job activities as well as measures to avert these dangers.

 Make sure all persons tasked with operating, installing, and maintaining the unit have read and

understand the safety information and operating instructions.

 When using hazardous materials or materials that could become hazardous, the circulator may be

operated only by persons who are absolutely familiar with these materials and the circulator. These persons must be fully aware of possible risks.

If you have any questions concerning the operation of your unit or the information in this manual, please contact us!

Contact

JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109

Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info.us@ julabo.com www.julabo.com

Safety instructions for the operator:

 You have received a product designed for industrial use. Nevertheless, avoid strikes to the

housing, vibrations, damage to the operating-element panel (keypad, display), and contamination.

 Make sure the product is checked for proper condition regularly (depending on the conditions of

use). Regularly check (at least every 2 years) the proper condition of the mandatory, warning, prohibition and safety labels.

 Make sure that the mains power supply has low impedance to avoid any negative effects on

instruments being operated on the same mains.

 This unit is designed for operation in a controlled electromagnetic environment. This means that

transmitting devices (e.g., cellular phones) should not be used in the immediate vicinity. Magnetic radiation may affect other devices with components sensitive to magnetic fields (e.g., monitors). We recommend maintaining a minimum distance of 1 m.

 Permissible ambient temperature: max. 40 °C, min. 5 °C.  Permissible relative humidity: 50% (40 °C).  Do not store the unit in an aggressive atmosphere.  Protect the unit from contamination.  Do not expose the unit to sunlight.

Appropriate operation

Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the circulator. Routine operation can also be carried out by untrained personnel who should however be instructed by trained personnel.

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 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.

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: USA, NAFTA

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 respective safety recommendations. Also observe the pin assignment of plugs and technical specifications of the products.

Operator responsibility – Safety recommendations

Contact an authorized waste management company in your country.

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.

These units contains refrigerants– 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.

Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!

2.2. Technical specifications

Working temperature range

°C

-28 ... 200

Temperature stability

°C

±0,01

Medium ethanol

0.26 0.2 0.06

Refrigerant

R134a

Overall dimensions (WxDxH)

23x42x61

Bath opening (WxL)

12x14

Bath depth

14 Filling volume from ... to

liters

3 ... 4,5

Weight

31 Mains power connection

V/ Hz

230 / 50

Current draw (at 230 V)

12 Current draw (at 230 V) CH

<9 + 2>

Mains power connection

V/ Hz

208-230 / 60

Current draw (at 230 V)

12 Mains power connection

V/ Hz

115 / 60

Current draw (at 115 V)

Mains power connection

V/ Hz

100 / 50/60

Current draw (at 100 V)

Working temperature range

°C

-28 ... 200

-30 ... 200

Temperature stability

°C

±0,01

Medium ethanol

0.26 0.2 0.06

0.45 0.39 0.15 0.05

Refrigerant

R134a

Overall dimensions (WxDxH)

42x42x42

31x42x64

Bath opening (WxL)

12x14

18x12

Bath depth

Filling volume from ... to

liters

3 ... 4,5

5,5 ... 8

Weight

Mains power connection

V/ Hz

230 / 50

Current draw (at 230 V)

12 (CH: 2)

Mains power connection

V/ Hz

208-230 / 60

Current draw (at 230 V)

------

Current draw (at 208 V)

------

Mains power connection

V/ Hz

115 / 60

Current draw (at 115 V)

Mains power connection

V/ Hz

100 / 50/60

Current draw (at 100 V)

F25-ME

Cooling capacity

°C

+20 0 -20

F26-ME F32-ME

Cooling capacity

°C

+20 0 -20

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

+20 0 -20 -30

Operator responsibility – Safety recommendations

Working temperature range

°C

-30 ... 200

-30 ... 150

Temperature stability

°C

±0,01

Medium ethanol

0.5 0.32 0.12 0.03

0.45 0.32 0.14 0.3

Refrigerant

R134a

Overall dimensions (WxDxH)

36x46x69

38x58x62

Bath opening (WxL)

23x14

24x30

Bath depth

Filling volume from ... to

liters

12 ... 16

14 ... 20

Weight

Mains power connection 230 V/50 Hz

V/ Hz

230 / 50

Current draw (at 230 V)

Current draw GB, CH (at 230 V)

<9 / 2>

Mains power connection

V/ Hz

208…230 / 60

Current draw (at 208 V / 230 V)

Mains power connection

V/ Hz

115 / 60

Current draw (at 115 V)

Mains power connection

V/ Hz

100 / 60

----

Current draw (at 100 V)

----

FP40-ME

FP50-ME FPW50-ME

Working temperature range

°C

-40 ... 200

-50 ... 200

Temperature stability

°C

±0,01

Medium ethanol

0.68 0.5 0.32 0.04

0.9 0.8 0.5 0.32 0.16

Refrigerant

R404A

R404A or R507

Overall dimensions (WxDxH)

37x46x69

42x49x70

Bath opening (WxL)

23x14

18x12

Bath depth

Filling volume from ... to

liters

9 ... 16

5.5 … 8

Weight

Mains power connection

V/ Hz

230 / 50

Current draw (at 230 V)

Current draw GB, CH (at 230 V)

<9 / 3>

<9 / 4>

Mains power connection

V/ Hz

230 / 60

Current draw (at 230 V)

F33-ME F34-ME

Cooling capacity

°C

+20 0 -20 -30

Cooling capacity

°C

+20 0 -20 -30

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C Technical changes without prior notification reserved.

+20 0 -20 -30 -40

Temperature selection

digital

via keypad

indication on VFD COMFORT-Display

remote control via personal computer

indication on monitor

Temperature indication

VFD COMFORT-DISPLAY

Resolution

°C

0.01

Absolute Temperature Calibration INT/EXT

°C

±3 / ±9

Temperature control

PID3 cascade temperatur control

Heater wattage (at 230 V)

2,0

Heater wattage (at 115 V)

1,0 Electronically adj. pump capacity

stages

1 ... 4

Flow rate at 0 bar

l/min

11 ... 16

Pressure max. at 0 liter

bar

0.22 ... 0.45

Electrical connections:

External alarm device

Vdc/mA

24-0 / max. 25

Computer interface

RS232

External temperature sensor

Pt100

Ambient temperature

°C

5 ... 40

Operator responsibility – Safety recommendations

Caution:

Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 230 °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 only indoor. Altitude up to 2000 m - normal zero. Ambient temperature: +5 ... +40 °C 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.

Protection class according to IEC 60 529 IP21

The unit corresponds to Class I

Overvoltage category II Pollution degree 2

The unit is not for use in explosive environment

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).

2.3. Cooling water connection

Notice: Cooling water circuit

the location where the unit is operated.

• Avoid putrid water.

7.5 to 9.0

Sulfate [SO4 2- ]

< 100 ppm

Hydrocarbonate [HCO 3-]/sulfate [SO4 2-]

> 1 ppm

Hardness [Ca 2+, Mg 2+]/[HCO 3-]

> 0.5 °dH

Alkalinity

60 ppm < [HCO 3-] < 300 ppm

Conductivity

< 500 μS/cm

Chloride (Cl -)

< 50 ppm

Phosphate (PO4 3-)

< 2 ppm

Ammonia (NH3)

< 0.5 ppm

Free chlorine

< 0.5 ppm

Trivalent iron ions (Fe 3+)

< 0.5 ppm

Manganese ions (Mn 2+)

< 0.05 ppm

Carbon dioxide (CO2)

< 10 ppm

Hydrogen sulfide (H2S)

< 50 ppm

Content of oxygen

< 0.1 ppm

Algae growth

impermissible

Suspended solids

impermissible

Cooling water pressure (IN/OUT) max. 6 bar

Pressure difference (IN - OUT) 3.5 to 6 bar

Cooling water temperature < 20 °C

Risk of oil leaking from the refrigeration system (compressor) of the recirculating cooler into the cooling water in case of a fault in the cooling water circuit!

Observe the laws and regulations of the water distribution company valid in

Notice:

Danger of corrosion of heat exchanger due to unsuitable quality of cooling water.

• Due to its high content of lime, hard water is not suitable for cooling and causes scale in the heat exchanger.

• Ferrous water or water containing ferrous particles will cause formation of rust even in heat exchangers made of stainless steel.

• Chlorinated water will cause pitting corrosion in heat exchangers made of stainless steel.

• Due to their corrosive characteristics, distilled water and deionized water are unsuitable and will cause corrosion of the bath.

• Due to its corrosive characteristics, sea water is not suitable.

• Due to its microbiological (bacterial) components, which settle in the heat

exchanger, untreated and unpurified river water and water from cooling towers is unsuitable.

• Avoid particulate matter in cooling water.

Recommended quality of cooling water:

Operating instructions

In addition to the safety warnings listed, warnings are posted throughout the operating

Read and follow these important instructions for averting dangers.

Warning:

Caution:

Notice:

Note!

Important!

This icon is used in the operating instructions to indicate flashing values or parameters which have to be set or confirmed.

Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

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.

Describes a possibly highly dangerous situation. If these instructions are not followed, serious injury and danger to life could result.

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.

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

Draws attention to something special.

Indicates usage tips and other useful information.

Follow the safety instructions to avoid personal injury and property damage. Also, the

• Only connect the unit to a power socket with an earthing contact (PE – protective

these parts.

3.3. Safety recommendations

valid safety instructions for workplaces must be followed.

earth)!

• The power supply plug serves as a safe disconnecting device from the line and must always be easily accessible.

• Place the unit on an even surface on a base made of nonflammable 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.

• Set the excess temperature safety installation at least 25 °C below the fire point of the bath fluid.

• Observe the limited working temperature range when using plastic bath tanks.

• Never operate the unit without bath fluid in the bath.

• Pay attention to the thermal expansion of bath oil during heating to avoid

overflowing of the fluid.

• Prevent water from entering the hot bath oil.

• Do 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).

• Use suitable connecting tubing.

• Avoid sharp bends in the tubing, and maintain a sufficient distance from

surrounding walls.

• Make sure that the tubing is securely attached.

• Regularly check the tubing for material defects (e.g., for cracks).

• Never operate damaged or leaking units.

• 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 turn off the unit and disconnect the mains cable from the power source before cleaning the unit.

• Always empty the bath before moving the unit.

• Transport the unit with care.

• Sudden jolts or drops may cause damage in the interior of the unit.

• Observe all warning labels.

• Never remove warning labels.

• Never operate units with damaged mains power cables.

• Repairs are to be carried out only by qualified service personnel.

 Some parts of the bath tank and the pump connections may become extremely hot

during continuous operation. Therefore, exercise particular caution when touching

Safety notes for the user

Caution:

determine the method of decontamination.

example.

defects or other reproductive harm.

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

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

WARNING

This product contains chemicals known to the state of California to cause cancer, birth

4. Operating controls and functional elements

4.1. Circulator

Front view Rear view

Mains power switch, illuminated

Navigation keys

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

The above graph “front side” shows an example for standard display.

1. Key: >Return< Stop (pump / heater )

2. >Return< in the menu one menu level down Correction function for parameters or values (prior to OK)

is locked for a short time.

immediately back to standard display

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

- icon for „keep key pressed down“.

Operating controls and functional elements

Socket: control cable of JULABO refrigerated circulator

RS232

Interface RS232: remote control via personal computer

Pt100

A M P

Mains circuit breakers (resettable) 15 A

Menu keys

Key: start the menu > warning and safety values<

Key: start the menu >temperature setpoints<

Key: display of MENU structure

VFD COMFORT-DISPLAY

Header: Control indicators see sections 11 and 12 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

Control indicators in the header: Heating / Cooling / Alarm /

emote control

Control indicators in the header: Temperature indication Internal or External actual value Temperature indication in °C (°F not possible on this unit)

Display of set pump pressure stage

Four stages, can be set via the key

, under >MENU - PUMP<.

Adjustable excess temperature protection according to IEC 61010-2-010

or output for alarm messages

Socket for external measurement and control sensor or external setpoint programming

20 Mains power cable with plug

4.2. Cooling Machine

1b Mains power switch, illuminated for cooling machine

15b

20b

Mains power cable with plug for circulator

Mains power cable with plug cooling machine

Drain tap

Drain port 24b

Pump connector: feed

Pump connector: return

Selector dial for cooling machine (only F25, F26, F34)

Front view Rear view Rear view FPW unit

15a

18b

20a

21 Built-in mains outlet for connection of circulator

24a

25 Venting grid, removable

Socket: control cable of JULABO refrigerated circulator

Mains fuses for cooling machine, T10A, D5 x 20 mm

Cooling water OUTLET and INLET.

Position "1" for operation with ME circulator.

¾"

Preparations

performance of the compressor.

Caution:

• Ferrous water can cause corrosion - even on stainless steel.

5. Preparations

5.1. Installation

material. F34: 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.

• 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.

• Place the unit on an even surface on a pad made of non-flammable

The necessary amount of refrigerant is specified on the type plate. > For 0.25 kg of refrigerant R134a, a room space of 1 m > For 0.52 kg of refrigerant R404A, a room space of 1 m > For 0.49 kg of refrigerant R507, a room space of 1 m

is required.

• Set selector dial for cooling machine (19) in position "1" for operation

with ME circulator.

(only F25, F26, F34)

• Keep at least 20 cm of open space on the front and rear venting grid.

• 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

5.2. Bath fluids

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 ≤65 °C is used, only supervised operation is possible.

Water: The quality of water depends on local conditions.

• Due to the high concentration of lime, hard water is not suitable for temperature

• Ensure circulation of cooling water by connecting the tubing to

cooling water inlet and outlet on the rear of the refrigerated circulator.

Cooling water see page 13

control because it leads to calcification in the bath.

• Chloric water can cause pitting corrosion.

corrosion in the bath, even in stainless steel.

Bath fluid

Temperature range

soft/decalcified water

5 °C to 80 °C

mixture water/glycol, mixture 1:1

-20°C to 50°C

• No liability for use of other bath fluids!

with the cap nut.

feed return

• Distilled and deionized water is unsuitable. Their special properties cause

Recommended bath fluids:

See website for list of recommended bath fluids.

ATTENTION: The maximum permissible viscosity is 50 mm

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.,

• are highly viscous (much higher than recommended at the respective working temperature)

• have a low viscosity and have creep characteristics

• have corrosive characteristics or

• tend to crack.

/s.

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 (24a)

The circulator is used for temperature application to external, closed systems (loop circuit) with simultaneous temperature application in the circulator bath.

Connecting the external system

• Unscrew the collar nuts from the pump connector (24a).

• Slide the tubing onto the pump connector for feed (24a) and

 

return flow (24b) and secure with hose clamps.

+ 47 hidden pages