JULABO CF41 User Manual

Operating Manual

Cryo-Compact Circulators

The HighTech Series

CF31 CF41

JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91

1.951.4871-V2 06/13

19514871-V2.doc 26.07.13

info@julabo.de www.julabo.de

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 Cryo-Compact 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 Cryo-Compact 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

Cryo-Compact Circulators

TABLE OF CONTENTS

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

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

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

2. Operator responsibility – Safety instructions ............................................................................ 6

2.1. Disposal ............................................................................................................................... 7

2.2. EC Conformity ...................................................................................................................... 8

2.3. Warranty conditions ............................................................................................................. 8

2.4. Technical specifications ....................................................................................................... 9

3. Safety notes for the user ......................................................................................................... 12

3.1. Explanation of safety notes ................................................................................................ 12

3.2. Explanation of other notes ................................................................................................. 12

3.3. Safety instructions .............................................................................................................. 12

Operating instructions .................................................................................................................... 15

4. Operating controls and functional elements ........................................................................... 15

5. Preparations ........................................................................................................................... 19

5.1. Installation .......................................................................................................................... 19

5.2. Temperature application to external systems ..................................................................... 19

Tubing ................................................................................................................................ 21

5.3.

5.4. Bath fluids .......................................................................................................................... 22

6. Operating procedures ............................................................................................................. 23

6.1. Power connection ............................................................................................................... 23

6.2. Filling .................................................................................................................................. 23

6.3. Switching on / Selecting the language ............................................................................... 24

7. Manual operation .................................................................................................................... 25

7.1. Start - Stop ......................................................................................................................... 25

7.2.  Control of the cooling machine ...................................................................................... 25

7.3.

7.4.

7.4.1. Excess temperature protection ................................................................................. 27

7.4.2. Early warning system, low level protection ............................................................... 30

Setting the temperatures .......................................................................................... 26

Safety installations, warning functions ..................................................................... 27

8.1. Configuration ..................................................................................................................... 32

8.2. Control ............................................................................................................................... 36

8.3. Start of a profile ................................................................................................................. 40

8.4. Integrated programmer ...................................................................................................... 46

8.5. Analog inputs/outputs ........................................................................................................ 49

8.6. Limits ................................................................................................................................. 56

8.7. Serial interface ................................................................................................................... 58

Menu functions ............................................................................................................. 31

8.3.1. Edit after start ........................................................................................................... 42

8.3.2. Interrupting a profile ................................................................................................. 44

8.3.3. Interruption after a power failure .............................................................................. 44

8.3.4. Termination of a profile ............................................................................................. 45

8.5.1. REG+E-PROG – temperature recorder outputs ....................................................... 51

8.5.2. REG+E-PROG - programmer input .......................................................................... 52

8.5.3. STAND-BY input ..................................................................................................... 54

8.5.4. ALARM output ......................................................................................................... 55

8.8. ATC Absolute Temperature Calibration, 3-point calibration .............................................. 59

8.9. Setting the pump pressure ................................................................................................. 62

9. Troubleshooting guide / Error messages ............................................................................... 63

10. Electrical connections ............................................................................................................. 66

11. Remote control ....................................................................................................................... 68

11.1. Setup for remote control .................................................................................................... 68

11.2. Communication with a PC or a superordinated data system ............................................. 68

11.3. List of commands ............................................................................................................... 69

11.4. Status messages ............................................................................................................... 72

11.5. Error messages ................................................................................................................. 73

12. JULABO Service – Online remote diagnosis .......................................................................... 74

13. Installation of electronic module ............................................................................................. 75

13.1. Draining ............................................................................................................................. 75

14. Cleaning / repairing the unit ................................................................................................... 76

Cryo-Compact Circulators

Operating manual

1. Intended use

JULABO Cryo-Compact Circulators have been designed for temperature application to 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

 The Cryo-Compact 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 and LCD DIALOGDISPLAY. Three menu keys facilitate adjusting setpoints, warning and safety functions and menu functions.

ICC

TCF

ATC

RS232 RS485

Pt100

SMART

PUMP

 The integrated programmer allows storing and running temperature and time-

dependent processes.

 The control electronics including “ICC - Intelligent Cascade Control“ automatically

adapts the heat supplied to the thermal requirements of the bath.

 The TCF - Temperature Control Features allow the user to have access to all

important temperature control parameters. This means: Full control on the control mode and the chance to manually adjust or adapt control to the specific application.

 Absolute Temperature Calibration (ATC3). 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 full 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 LCD DIALOG-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 shut-down 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..

Operator responsibility – Safety instructions

2. Operator responsibility – Safety instructions

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

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

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

 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 GmbH Eisenbahnstraße 45 77960 Seelbach / Germany

Tel. +49 (0) 7823 / 51-0 info@julabo.de Fax +49 (0) 7823 / 24 91 www.julabo.de

Safety instructions for the operator:

 Avoid strikes to the housing, vibrations, damage to the operating-element panel (keypad, display),

and contamination.

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

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

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

instruments being operated on the same mains.

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

transmitting devices (e.g., cellular phones) should not be used in the immediate vicinity.

 Magnetic radiation may affect other devices with components sensitive to magnetic fields (e.g.,

monitors). We recommend maintaining a minimum distance of 1 m.

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

Appropriate operation

Only qualified personnel is authorized to configure, install, maintain, or repair the circulator. Persons who operate the circulator must be trained in the particular tasks by qualified personnel. The summarized user guidance (short manual) and the specification table with information on individual parameters are sufficient for this.

Use

The bath can be filled with flammable materials. Fire hazard! There might be chemical dangers depending on the bath medium used. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data

Cryo-Compact Circulators

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:

Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions.

or 2

(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

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)

Warning label W017: Colors: yellow, black Low temperature warning. (The label is put on by JULABO)

Observe the instructions in the manuals for instruments of a different make that you connect to the circulator, particularly the corresponding safety instructions. Also observe the pin assignment of plugs and technical specifications of the products.

2.1. Disposal

The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil. For disposal, follow the instructions in the material safety data sheets.

This unit contains the refrigerants R-404A, and R-134a, which at this time are not considered harmful to the ozone layer. However, over the long operating period of the unit, disposal rules may change. Therefore, only qualified personnel should handle the disposal.

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 crossedout 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!

Operator responsibility – Safety instructions

2.2. EC Conformity

The products described in the operating instructions conform to the requirements of the following European guidelines:

Directive of the European Parliament and of the Council on the approximation of the laws of the

Member States relating to machinery.

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 GmbH Eisenbahnstr. 45 77960 Seelbach / Germany

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

www.julabo.de

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.

, indicating the serial no. The extended warranty will apply from the date of JULABO

Cryo-Compact Circulators

2.4. Technical specifications

CF31

Working temperature range °C -30 ... +200 Temperature stability °C ±0.02 Temperature selection digital via keypad indication on LCD DIALOG-DISPLAY (°C/°F) remote control via personal computer indication on monitor Temperature indication: VFD COMFORT-DISPLAY Resolution °C 0.01 Pump pressure stage indication on VFD COMFORT-DISPLAY Temperature control ICC - Intelligent Cascade Control Working temperature sensor Pt 100 Safety temperature sensor Pt 100 Absolute Temperature Calibration at internal control °C ±3 at external control °C ±10 Heater wattage (at 230 V) kW 2,0 Heater wattage (at 115 V) kW 1,0 Cooling capacity °C 20 0 -20 Medium ethanol kW 0.32 0.25 0.15 Cooling compressor 1-stage Refrigerant R134a Cooling machine Air-cooled

Electrical connections: see page 11

Electronically adj. pump capacity 1 ... 4 stages Flow rate min ... max. at 0 bar l/min 22 ... 26 Pressure max. at 0 liter bar 0,7 Suction max at 0 liter bar 0,4 Bath opening (WxL) cm 16x3 Bath depth cm 14 Filling volume liters 2.0 ... 3.0 Overall dimensions (WxDxH) cm 24x46x40 Weight kg 35 Ambient temperature °C 5 ... 40

Protection class according to IEC 60 529 IP 21 Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50

Current draw (at 230 V) A 11 Mains power connection 230 V/60 Hz V/ Hz 197-242/60 Current draw (at 230 V) A 12 Mains power connection 115 V/60 Hz V/ Hz 103-127 / 60 Current draw (at 115 V) A 14

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

Operator responsibility – Safety instructions

CF41

Working temperature range °C -40 ... +200 Temperature stability °C ±0.02 Temperature selection digital via keypad indication on LCD DIALOG-DISPLAY (°C/°F) remote control via personal computer indication on monitor Temperature indication: VFD COMFORT-DISPLAY Resolution °C 0.01 Pump pressure stage indication on VFD COMFORT-DISPLAY Temperature control ICC - Intelligent Cascade Control Working temperature sensor Pt 100 Safety temperature sensor Pt 100 Absolute Temperature Calibration at internal control °C ±3 at external control °C ±10 Heater wattage (at 230 V) kW 2,0 Heater wattage (at 115 V) kW 1,0 Cooling capacity °C 20 0 -20 -30 Medium ethanol kW 0.47 0.4 0.28 0.12 Cooling compressor 1-stage Refrigerant R404A Cooling machine Air-cooled

Electrical connections: see page 11

Electronically adj. pump capacity 1 ... 4 Flow rate min ... max. at 0 bar l/min 22 ... 26 Pressure max. at 0 liter bar 0,7 Suction max at 0 liter bar 0,4 Bath opening (WxL) cm 19x3 Bath depth cm 19 Filling volume Liter 4.0 ... 5.5 Overall dimensions (WxDxH) cm 28x46x46 Weight kg 42 Ambient temperature °C 5 ... 40

Protection class according to IEC 60 529 IP 21 Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50

Current draw (at 230 V) A 13 Mains power connection 230 V/60 Hz V/ Hz 197-242/60 Current draw (at 230 V) A 13 Mains power connection 115 V/60 Hz V/ Hz 103-127 / 60 Current draw (at 115 V) A 18

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

Cryo-Compact Circulators

Electrical connections:

Computer interface RS232 / RS485 External sensor Pt100

Optional: (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

Warning functions and safety installations

Excess temperature protection adjustable from 0 °C ... 220 °C Low liquid level protection float switch Early warning system for low level float switch Classification according to DIN 12876-1 class III Alarm message optical + audible (permanent) Warning message optical + audible (in intervals)

Overload protection for compressor and pump motor

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

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 atmosphere

EMC requirements 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).

Safety notes for the user

3. Safety notes for the user

3.1. 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 classified using a signal word. Read and follow these important instructions.

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.

3.3. Safety instructions

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

safety instructions for workplaces must be followed.

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

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.

 Never operate the unit without bath fluid in the bath.  Pay attention to the thermal expansion of bath oil during heating to avoid

Cryo-Compact Circulators

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 these parts.

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

cold during continuous operation. Therefore, exercise particular caution when touching these parts.

Caution:

The circulator may be used, for example, to control the temperature of fluids in a reactor.

We do not know what substances are contained in these vessels. Many substances are:

 inflammable, easily ignited, or explosive  hazardous to health  environmentally hazardous

i.e.: dangerous The user alone is responsible for the handling of these substances!

Safety notes for the user The following questions should help to recognize possible dangers and to reduce the

risks to a minimum.

 Are all tubes and electrical cables connected and layed?

Note: sharp edges, hot surfaces in operation, moving machine parts, etc.

 Do dangerous vapors or gases develop during heating?

Must the work be done in a fume hood?

 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 shutdown 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.

Cryo-Compact Circulators

Operating instructions

4. Operating controls and functional elements

Front view CF41 / CF31 Rear view CF41/ CF31

1234

910111213

ALAR REG

STAND-

E-

15 8b

SERIAL

ext

Pt100

T16A

1234

910111213

LAR REG

STAND-

E-

15 8b

T16A

SERIAL

ext

Pt100

Operating controls and functional elements

100

140

180

220

°C

Mains power switch, illuminated

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

Setpoint1: 150.00°C IntAct : 148.53°C Power : 80 % Control : intern

RS232 : 150.00°C ExtAct : 145.30°C Power : 80 % Control : extern

LCD DIALOG-DISPLAY

Line 1: Setpoint and origin of setpoint programming

(Key / RS232 or RS485 / ext. Pt100 / EProg)

Line 2: Actual value - internal or external,

identical to line 1 of the VFD-COMFORT-DISPLAY Line 3: Heating capacity in %. Line 4: Control type: internal / external

VFD-COMFORT-DISPLAY

Header: Control indicators see sections 4.1 and 4.2

4.1

4.2

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. However, the functions of these keys are different with the programmer started. 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<)

*see >Configuration> page 32

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

Remote control

Control indicators in the header: Temperature indication Internal or External actual value Temperature indication in °C or °F (see page 35)

Cryo-Compact Circulators

4.3

4.4

Keypad 1

Display for the adjusted pump pressure stage in the -OFF- mode. Display for the effective pump pressure stage (rotation speed) after start.

Four stages, adjustable via the

button, in the menu >PUMP<.

Segment at bottom blinks: Standstill of compressor

(compressor protection device, page 25)

Start / stop key

Key for selecting the working temperature - Setpoint 1, 2, 3

Key for selecting the warning and safety values

MENU key - for selecting the menu functions

Cursor keys (left or right)

7 Drain port

8a 8b

Keypad 2

Edit keys (increase or decrease)

Enter key 1) Store value / parameter

2) Next lower menu level Escape key 1. Cancel entries

2. Return to a higher menu level

Numeral keypad: numerals 0 to 9

minus / decimal point

F key: Shows the help text in the LCD DIALOG-DISPLAY when alarm messages appear.

Handle: front Handle: rear

Operating controls and functional elements

Option: Electronic module Order No. 8 900 100

The Cryo-Compact Circulator automatically recognizes the connected electronic module.

Alarm output (for external alarm signal)

ALARM

Standby input (for external emergency switch-off)

STAND-BY

Programmer input and temperature recorder output

REG+E-PROG

ext Pt100

Socket for external measurement and control sensor or external setpoint programming

SERIAL

Interface RS232 / RS485: remote control via personal computer

Pump connection

OUT - pressure pump, M16x1 IN – suction pump, M16x1 (return)

Mains fuses, T16A

Mains power cable with plug

5. Preparations

5.1. Installation

Cryo-Compact Circulators

 Place the unit on an even surface on a base made of

nonflammable material.

 Cooling machine, pump motor and electronics produce intrinsic

heat that is dissipated via the venting openings.! Never cover these openings!

 Be sure that the flow of ventilation can exit under the

instrument.

 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

 The place of installation should be large enough and provide sufficient

maximum cooling performance of the compressor.

air ventilation to ensure the room does not warm up excessively because of the heat the instrument rejects to the environment. (Max. permissible ambient temperature: 35 °C). For a fault (leakage) in the refrigeration system, the standard EN 378 prescribes a certain room space to be available for each kg of refrigerant. The refrigerant quantity is specified on the type plate. > For 0.52 kg of refrigerant R404A, 1 m > For 0.25 kg of refrigerant R134a, 1 m Model CF41 with 0.16 kg filling quantity of refrigerant R404A = 0,33 m

of space is required.

volume Model CF31 with 0.15 kg filling quantity of refrigerant R134a = 0.6 m

volume

5.2. Temperature application to external systems

The Cryo-Compact Circulator is used for temperature application to external systems

(loop circuit)

Caution: Securely attach all tubing to prevent slipping.

Notice: Flood hazard!

If the liquid levels in the Cryo-Compact Circulator bath and the external system are at different heights, overflowing must be prevented after the power has been turned off.

Preparations

Return flow safety device

For this reason, shut-off valves can be integrated in the loop circuit. Order No. Description

8 970 456 Shut-off valve (suitable up to +90 °C) 8 970 457 Shut-off valve (suitable up to +200 °C)

Temperature application to external, closed systems

SERIAL

ALARM REG+

STAND-BY

E-PROG

 Unscrew the M16x1 collar nuts on the pump

ext

Pt100

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: 14, suction pump: 15)

 Push on the tubings, and secure with tube

clamps.

 Attach the tubing to the connectors of the

external closed system, e.g., an instrument with

T16A

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

Tubing see page 21

The Cryo-Compact 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:

 The liquid level should be equal in the internal and external baths

(absolute height).

 If you take out samples (for example Erlenmeyer flasks) from the

external bath, turn the Cryo-Compact Circulator off with the Start/Stop key.

5.3. Tubing

Warning: Tubing:

At high working temperatures, the tubing used for temperature control and for the cooling water supply represents a danger source.

Recommended tubing:

A damaged tubing line may allow a large amount of hot bath fluid to be pumped out within a short time.

This may result in:

 Burning of skin  Breathing difficulties due to hot atmosphere

Safety instructions

 Use 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), at least once a

year.

 Preventive maintenance: replace the tubing from time to time.

Cryo-Compact Circulators

Order No.

Suitable for

8930008 1 m CR®-tubing 8 mm inner dia. (-20 ... +120°C) CF31, CF41 8930012 1 m CR®-tubing 12 mm inner dia. (-20 ... +120°C) CF31, CF41 8930108 1 m Viton® tubing 8 mm inner dia (-50 °C bis 200 °C) CF31, CF41 8930112 1 m Viton® tubing 12 mm inner dia (-50 °C bis 200 °C) CF31, CF41

Tubing insulation

8930410 8930412

1 m Insulation, 14 mm inner dia.. 1 m Insulation, 18 mm inner dia.

-tubing 8 mm inner dia

Viton® tubing 12 mm inner dia.

Tube clamps

8970480 2 Tube clamps, size 1 CR

-tubing 8 mm inner dia

8970481 2 Tube clamps, size 2 Viton® tubing 12 mm inner dia.

Metal tubing, flexible, triple insulated

8 930 209 0.5 m 8 930 210 1.0 m 8 930 211 1.5 m

2 fittings M16x1 female

-100 °C ... +350 °C

8 930 214 3.0 m

Metal tubing, flexible, insulated

8 930 220 0.5 m 8 930 221 1.0 m 8 930 222 1.5 m

2 fittings M16x1 female

-50 °C to +200 °C

8 930 223 3.0 m

Preparations

5.4. Bath fluids

Caution:

Carefully read the material 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

control because it leads to scale in the bath

 Ferrous water can cause corrosion, even on stainless steel.  Chlorinated water can cause pitting corrosion.  Distilled water and deionized water are unsuitable. Their special properties

cause corrosion in the bath, even on stainless steel.

Recommended bath fluids:

Bath fluid Temperature range soft/decalcified water 5 °C to 80 °C

See website for list of recommended bath fluids.

Contact: see page 6

Caution:

Fire or other dangers when using bath fluids that are not recommended:

Please contact JULABO before using other than recommended bath liquids.

JULABO assumes no liability for damage caused by the selection of an unsuitable bath fluid. Unsuitable bath fluids are fluids which, e.g.,  are highly viscous

(much higher than 70 mm2 x s-1 at the respective working temperature)

 have a low viscosity and have creep characteristics

 have corrosive characteristics or  tend to crack.

No liability for use of other bath fluids!

ATTENTION: The maximum permissible viscosity is 70 mm

6. Operating procedures

6.1. Power connection

Caution:

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

6.2. Filling

earth)!

 The power supply plug serves as a safe disconnecting device from the line and

must always be easily accessible.

 Never operate the unit with a damaged mains power cable.  Regularly check the mains power cables for damage.

 We disclaim all liability for damage caused by incorrect line voltages!

Make sure that the line voltage and frequency match the supply voltage specified on the type plate.

Cryo-Compact Circulators

Notice:

Pay attention to the thermal expansion of bath oil during heating to avoid overflowing of the liquid.

Guideline: A volume change of 12 % per 100 °C temperature variation is to be considered.

Take care that no liquid enters the interior of the Cryo-Compact Circulator .

 Connect the tubing from the external system to the pump

connectors and check for leaks

 Check to make sure that the drain tap (7) is closed.

Recommendation: For filling, use for example an measuring jug with nuzzle.

 Recommended maximum filling level with water as bath fluid:

30 mm below the tank rim

 Recommended maximum filling level with bath oils:

40 mm below the tank rim

 Turn the mains switch (1) on

(Switching on - see page 24)

 Switch on unit by pressing the start/stop key  Tempering fluid is pumped into the externally connected system.

Refill fluid up to recommended filling level.

 The Cryo-Compact Circulator is ready for operation.

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