JULABO Magnum 91 User Manual

Operating Manual

Temperature System Magnum 91

JULABO GmbH 77960 Seelbach / Germany

Original Operating Manual

1.951.2777-V2 06/13

19512777-V2.doc 22.07.13

Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 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 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 checking

Unpack the unit 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

Important: keep operating manual for future use

TABLE OF CONTENTS

Temperature System Magnum 91

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

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

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

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

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

2.2. Warranty conditions ............................................................................................................................. 8

2.3. EEC Declaration of Conformity............................................................................................................ 9

2.4. Technical specifications ..................................................................................................................... 10

2.5. Cooling water connection .................................................................................................................. 13

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

3. Operating controls and functional elements ........................................................................................... 14

3.1. Description of the Magnum principle ................................................................................................. 18

4. Safety notes for the user ........................................................................................................................ 19

4.1. Explanation of safety notes ............................................................................................................... 19

4.2. Explanation of other notes ................................................................................................................. 19

4.3. Safety recommendations ................................................................................................................... 19

5. Preparations ........................................................................................................................................... 22

5.1. Installation.......................................................................................................................................... 22

5.2. Cooling water connection .................................................................................................................. 22

5.3. Connect the external system ............................................................................................................. 23

5.3.1. Tubing ........................................................................................................................................... 24

5.4. Bath liquids ........................................................................................................................................ 25

5.5. Power connection .............................................................................................................................. 26

5.6. Filling ................................................................................................................................................. 26

5.6.1. Filling of external, closed systems ................................................................................................ 28

5.7. Degasifying ........................................................................................................................................ 30

5.8. Draining ............................................................................................................................................. 31

6. Operating procedures ............................................................................................................................. 32

6.1. Switching on / Selecting the language .............................................................................................. 32

7. Manual operation .................................................................................................................................... 33

7.1. Start - Stop......................................................................................................................................... 33

7.2. Direct setting of the working temperature .......................................................................................... 34

Settings in the SET menu .................................................................................................................. 34

7.3.

7.3.1. Setting the working temperature .................................................................................................. 34

7.3.2. Warning functions ......................................................................................................................... 35

7.3.3. Setting the pump pressure stage ................................................................................................. 36

7.4. Setting the safety installations ........................................................................................................... 36

7.5. Internal / external control ................................................................................................................... 38

8. Menu functions ....................................................................................................................................... 38

8.1. Configuration ..................................................................................................................................... 40

8.2. Control parameters ............................................................................................................................ 43

8.3. Start of a profile ................................................................................................................................. 45

8.3.1. Interrupting a profile ...................................................................................................................... 47

8.4. Integrated programmer ...................................................................................................................... 48

8.5. Analog inputs/outputs ........................................................................................................................ 51

8.6. Limits ................................................................................................................................................. 54

8.7. Interface ............................................................................................................................................. 54

8.8. Sensors .............................................................................................................................................. 55

8.9. Pump ................................................................................................................................................. 56

9. Troubleshooting guide / Error messages ............................................................................................... 57

10. Electrical connections ............................................................................................................................. 61

11. Remote control ....................................................................................................................................... 64

11.1. Setup for remote control ................................................................................................................. 64

11.2. Communication with a PC or a superordinated data system ......................................................... 65

11.3. List of commands ............................................................................................................................ 66

11.4. Status messages ............................................................................................................................ 69

11.5. Error messages ............................................................................................................................... 69

12. Cleaning the unit ..................................................................................................................................... 73

12.1. Maintaining the cooling performance .............................................................................................. 75

13. Repairing the unit, transport ................................................................................................................... 75

14. Earthquake anchorage for Magnum 91 (Accessories) ........................................................................... 77

Temperature System Magnum 91

Operating manual

1. Intended use

JULABO Temperature Systems have been designed for temperature application to specific fluids in a closed system (oop circuit). 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 Temperature Systems are operated via the splash-proof keypad. The implemented

microprocessor technology allows to set and to store different values that can be

ESCESC

SET

indicated on the VFD COMFORT-DISPLAY and LCD DIALOG-DISPLAY.

 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.

ICC

TCF

RS232 RS485

Pt100

SMART

PUMP

 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.

 Electrical connections:

The serial interface, switchable from RS232 to RS485, allows modern process technology without additional interface. The following analog sockets are available: The REG+E-PROG socket for setpoint selection via an external, analog programmer. At the same time, this socket provides three analog outputs for temperature recorders. The external Pt100 socket for external control. The alarm output for an external signal. The stand-by input for external emergency switch-off.

 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 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 temperature system 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 temperature system 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 temperature system. 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 may be chemical dangers depending on the bath medium used. Observe all warnings for the materials (bath fluids) used and the corresponding instructions

Temperature System Magnum 91

(material safety data sheets). Insufficient ventilation may result in the formation of explosive mixtures. Use the unit only in well ventilated areas.

Use only recommended materials (bath fluids). Use only nonacidic and noncorrosive bath fluids.

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:

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 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 W26: Colors: yellow, black Hot surface warning. (The label is put on by JULABO) Warning label W017: Colors: yellow, black Cold surface warning. (The label is put on by JULABO)

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

2.1. Disposal

The 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. Please observe the regulations for disposal which are effective in the country of operation.

This unit contains the refrigerants R404A and R23 – 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

See the current official journal of the European Union – WEEE directive.

Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE). This directive requires electrical and electronic equipment marked with a crossed-out trash can to be disposed of separately in an environmentally friendly manner. Contact an authorized waste management company in your country. Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!

Operator responsibility – Safety recommendations

2.2. 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 indicating the serial no. The extended warranty will apply from the date of JULABO GmbH’s original invoice.

JULABO GmbH reserves the right to decide the validity of any warranty claim. In case of faults arising either due to faulty materials or workmanship, parts will be repaired or replaced free of charge, or a new replacement unit will be supplied.

Any other compensation claims are excluded from this guarantee.

2.3. EEC Declaration of Conformity

Temperature System Magnum 91

Operator responsibility – Safety recommendations

2.4. Technical specifications

9410191.7 Temperature System

Working temperature range °C -91 ... +250 Temperature stability °C ±0.01 ... ±0.05

Temperature selection: digital via keypad indication on DIALOG-DISPLAY (LCD) remote control via personal computer indication on monitor Temperature indication: VFD COMFORT-DISPLAY

Resolution °C 0.01 Liquid level indication and

pump pressure stage indication

Temperature control ICC - Intelligent Cascade Control Working temperature sensor Pt 100 Safety temperature sensor Pt 100 Absolute Temperature Calibration (ATC int) °C ±3 (ATC ext) °C ±10 Heater wattage kW 6.0

Cooling capacity °C (Medium: Julabo Thermal HL45 │ Ethanol) pumpe stage 5 kW 3.0 4.8 │ 4.6 4.6 4.5 4.3 2.0 0.5

Cooling compressor 2-stage Refrigerant R404A / R23 Cooling unit water cooled Quantity passing l/min 10 (at 15 °C inlet temperature) Cooling water connectors G 3/4“ external thread

Pressure pump 1) adjustable in five grades Stage 1 2 3 4 5 Prssure max. at 0 Liter bar 0.8 0.95 1.2 1.4 1.9 Flow rate max. at 0 bar l/min 30 35 41 45 50

Filling volume heat exchanger min. process volume usable expansion volume

Dimenssions (WxLxH) cm 71x88x165 Weight kg 385 Ambient temperature range °C 5 ... 35 Noise level, 1 m distance dBA 72 Protection class according to IEC 60 529 IP 20

Mains power connection +5 % /-10 % V/ Hz 400 / 50 / 3 Phases

Current input at 400 V max. / phase A 20

VFD COMFORT-DISPLAY

liters liters liters

Magnum 91 400 V / 3 Phases / 50 Hz

LCD DIALOG-DISPLAY

(Bar graph in five grades)

200 100 │ 20 0 -20 -40 -60 -80

11.0

21.5

13.0

Temperature System Magnum 91

Temperature System

Magnum 91 230 V / 3 Phases / 60 Hz

Working temperature range °C -91 ... +250 Temperature stability °C ±0.01 ... ±0.05

Temperature selection: digital via keypad indication on DIALOG-DISPLAY (LCD) remote control via personal computer indication on monitor Temperature indication: VFD COMFORT-DISPLAY

LCD DIALOG-DISPLAY

Resolution °C 0.01 Liquid level indication and

pump pressure stage indication

VFD COMFORT-DISPLAY

(Bar graph in five grades)

Cooling capacity °C

200 100 │ 20 0 -20 -40 -60 -80

(Medium: Julabo Thermal HL45 │ Ethanol) pumpe stage 5 kW 3.0 4.8 │ 4.6 4.6 4.5 4.3 2.0 0.5

Cooling compressor 2-stage Refrigerant R404A / R23 Cooling unit water cooled Quantity passing l/min 12 (at 20 °C inlet temperature) Cooling water connectors G 3/4“ external thread

Pressure pump 1) adjustable in five grades Stage 1 2 3 4 5 Pressure max. at 0 Liter bar 0.8 0.95 1.2 1.4 1.9 Flow rate max. at 0 bar l/min 30 35 41 45 50

Filling volume heat exchanger min. process volume usable expansion volume

liters liters liters

11.0

21.5

13.0

Dimenssions (BxTxH) cm 71x88x165 Weight kg 385 Ambient temperature range °C 5 ... 35 Noise level, 1 m distance dBA 72 Protection class according to IEC 60 529 IP 20

Mains power connection 0 /-10 % V/ Hz 230 / 3 Phases / 60

Current input at 230 V max. / phase A 35

Pump data in relation to fluids with a specific density of 1 kg/dm3 All measurements have been carried out at: rated voltage and frequency, ambient temperature: 20 °C Technical changes without prior notification reserved.

Operator responsibility – Safety recommendations

Electrical connections:

Computer interface RS232 / RS485

Programmer input -100 °C to 400 °C = 0 to 10 V or 0 to 20 mA or 4 to 20 mA

0 to 10 V (0 V = -100 °C, 10 V = 400 °C)

0 to 20 mA (0 mA = -100 °C, 20 mA = 400 °C)

4 to 20 mA (4 mA = -100 °C, 20 mA = 400 °C)

Stand-by input

External alarm device 4-0 V DC / max. 25 mA

External measurement and control sensor Pt100, 4-lead technique

Safety installations and warning functions:

Excess temperature protection >TANK< adjustable from 0 °C ... 320 °C

Excess temperature protection >RES< adjustable from 0 °C ... 220 °C

Low level protection float switch Liquid level display optical, 5-graded

Classification according to DIN 12876-1 class III

Supplementary safety installations

High temperature warning function optical + audible (in intervals) Low temperature warning function optical + audible (in intervals)

Supervision of the working sensor plausibility control

Reciprocal sensor monitoring between working and safety sensors difference >50 K

Alarm indication optical + audible (permanent)

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

The unit corresponds to Class I

Overvoltage category II

Pollution degree 2

Caution:

The unit is not suitable for use in explosive environment

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).

Temperature System Magnum 91

2.5. Cooling water connection

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

Difference pressure (IN - OUT ) 3.5 to 6 bar

Cooling water temperature <20 °C

Recommended quality of cooling water:

pH – value 7.5 to 9.0 Sulfate [SO4 2- ] < 100 ppm Hydrocarbonate [HCO3- ] / Sulphate [SO4 2-] > 1 ppm Hardness [Ca2+, Mg2+] / [HCO3-] > 0,5 dH Alkalinity 60 ppm < [HCO3-] < 300 ppm Conductivity < 500 μs / cm Chloride (CL-) < 50 ppm Phosphate (PO43-) < 2 ppm Ammonia (NH3) < 0.5 ppm Free Chlorine < 0.5 ppm Ferri Ions (Fe3+ ) < 0.5 ppm Mangano Ions (Mn2+) < 0.05 ppm Carbon dioxide (CO2) < 10 ppm Hydrosulfide (H2S) < 50 ppm Content of oxygen < 0.1 ppm Algae growth impermissible Suspended solids impermissible

Notice:

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

 Due to its high content of lime hart water is not suitable for cooling and causes calcination

of the heat exchanger.

 Ferrous water or water containing ferrous particles will cause formation of rust even in

heat exchangers made of stainless steel.

 Chlorous water will cause pitting corrosion in heat exchangers made of stainless steel.  Due to its corrosive characteristics distilled and deionized water is unsuitable and will

cause corrosion of the bath. .

 Due to its corrosive characteristics sea water is not suitable.  Due to its microbiological (bacteria) 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.  Avoid putrid water.

Notice: Cooling water circuit

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

Observe the laws and regulations of the water distribution company valid in the location where the unit is operated.

Operating instructions

3. Operating controls and functional elements

Front view Rear view

Mains power switch

2 Operating board 1

2.0

Setp: 120. 00 °C IntAct 21.00°C ExtAct : 20. 00 °C Contro l: Intern

2.1

2.2

>Setp. : 12 0. 00 °C Overt.:255.00°C Subtmp:-55.00°C St.Pump: 2

2.3

2.4

>Configuration Control param. Profile Start Int. Programmer

2.5

2.6

2.7

2.8

2.9

ESC

....

Temperature System Magnum 91

DIALOG-DISPLAY (LCD) Standard indication Line 1: Setpoint in °C Line 2: Internal actual value in °C Line 3: External actual value in °C Line 4: Control type: internal / external control Indicating messages (e. g. warnings)

Start / stop key

To switch the circulation pump, heating element and cooling unit.

SET Menu Key - Indicating and setting setpoint values

Set the following values: in Line 1: the working temperature Setp.: Line 2: the high temperature limit Overt.: Line 3: the low temperature limit Subtmp: Line 4: the pump pressure stage St.Pump:

Control type: internal / external control

To swap, the unit has to be in the STOP MODE.

Indicated in line 4 on the DIALOG-DISPLAY (LCD)

MENU key - for selecting the menu functions

(Menu see page 38)

Cursor keys - Select menu items

P-key Selecting parameters

Escape key 1) Cancel entries

2) Return to a higher menu level

Enter key 1) Store value / parameter

2) Next lower menu level

Numeric keypad: numerals 0 to 9; minus / decimal point

Operating controls and functional elements

3 Operating board 2

3.1

VFD-Info-Display

Header: Control indicators see section 2.2

Line 1: Actual value Int or Ext

3.2

3.21 3.22 3.23

3.3

Int

125.40

S 120.00

3.4

E 120.00

125.40

TANK 15 RES 8

3.5

3.6

160

240

320

°C

To swap, press the key

(see below)

Line 2: Working temp. setpoint, constantly S xxx.xx

or indication of the safety temperature (TANK)

Line 3: Miscellaneous values

To swap, press the key

(see below)

or indication of the safety temperature (RES)

Control indicators in the header:

Heating / Cooling / Alarm / Remote control

Temperature indication Internal or External actual value

Temperature indication in °C (°F not used on Magnum 91) Display for the adjusted pump pressure stage (five grades),

adjustable via the key

Liquid level display (five grades) for the reservoir.

Liquid level display on VFD-DISPLAY

3.21 Normal operation: 1 ... 4 segments appear

3.22 Low liquid level warning: All segments off

3.23 High liquid level warning: 4 ... 5 segments appear. Temperature application system overfilled

Taste für Umschaltung der Anzeige in Zeile 3 am VFD

ID 0 Identification no. – not used on Magnum 91

L xx Capacity in %

E xxx.xx or I xxx.xx Actual value (external or internal)

P x.xx Pump pressure in bar

Key to swap line 1 on the VFD

 Actual value Int or Ext alternating with line 3

Key to indicate the safety temperature on the VFD Line 2: TANK - Safety temperature in internal bath Line 3: RES - Safety temperature in the reservoir

Adjustable excess temperature protection (safety temperature) Used for setting the safety temperature in the internal bath, called "TANK" on the display

130

3.7

180

220

°C

Adjustable safety temperature. Used for setting the safety temperature in the internal reservoir, called "RES" on the display

Key for automatic filling and air purge of the unit as well as the connected

3.8

external system.

4 Socket board

Programmer input and temperature recorder output

4.1

REG+E-PROG

Stand-by input (for external emergency switch-off)

4.2

STAND-BY

Alarm output (for external alarm signal)

4.3

ALARM

Connector for external measurement and control sensor

4.4

EXT. Pt100

Temperature System Magnum 91

4.5

SERIAL

Interface RS232/RS485

5 Filling opening

Drain port with drain tap

7a / 7b

Castor with brake (at the front)

Castor without brake (at the back)

Mains power connection 400 V / 3 Phases / 50 Hz

Mains fuses F1 and F4 Mains circuit breakers (resettable): 10 A Pump motor

F1 F2 F3 F4 F5 F6

F2 and F5 Mains circuit breakers (resettable): 16 A Heater 1

F3 and F6 Mains circuit breakers (resettable): 16 A Heater 2, Electronics

Mains power connection 230 V / 3 Phases / 60 Hz

Mains fuses F1 and F2 Mains circuit breakers (resettable): 16 A Heater 2, Electronics

F1 F2 F3 F4 F5 F6

F3 and F4 Mains circuit breakers (resettable): 16 A Heater 1

F5 and F6 Mains circuit breakers (resettable): 10 A Pump motor

2 Motor protection circuit breakers for compressor motors

9 Mains power cable

Pump connector: pressure pump M24x1.5

Pump connector: return M24x1.5

Overflow connector M16x1

13 14

Cooling water connectors IN - inlet OUT - outlet G3/4" external thread

Operating controls and functional elements

3.1. Description of the Magnum principle

e.g. double-sided glass vessel).

Operating: The operation of the temperature system and the indication is effected via the local operating board (2, 3).

Filling : First connect the external consumer (32). The menu option >Mode< is set on >Fill<. The unit is filled at the filling opening (5) via the internal reservoir (5a). The bath liquid flows further into the heat exchanger (20). The filling valve (25) represents narrows. Therefore the filling should be done slowly. The air from the heat exchanger (20) escapes via the venting valve (24). In a first step bath liquid is filled in

until the level indication indicates 3 or 4 segments (see – Filling volume- page 26).

Then, by pressing the key is started. In intervals the tempering liquid is pumped via connection (10) into the external system (32) and led back into the heat exchanger (20) via connection (11). At the end of the filling process the menu option >Mode< has to be set on >Sys close<.

Working:

In case of a closed external system the filling valve (25) remains open and allows a change in volume of the bath liquid caused by temperature during operation. In case of emergency it has to be possible that the expanding bath liquid can drain off at the overflow (12) into a suitable vessel. The temperature system will be cooled with water (31). Connect the cooling water to the lead in for cooling water (14). Lead the outflow for cooling water (13) into the locally provided drain respectively backflow.

The temperature system is started with the key circulating pump (23) start according to the desired adjustments at the operating board (2, 3). In the line to the pumpe exit (10) the pump pressure (29) and the actual temperature of the internal control sensor (28a) is permanently measured. If the temperature control has to be effected externally a Pt100 external sensor (28b) has to be connected and switched over to external control at the operating board.

Safety: In the internal reservoir (5a) there is the level sensor (26) as well as a safety sensor (27b). The safety sensor (27a) as high temperature protection is located directly at the heater (21). If the external circuit is interrupted (e.g. with a shut-off valve), an emergency circuit is maintained via an internal Bypass (30).

an automatic filling and venting mode with activation of the circulating pump (23)

. The heating (21), the cooling aggregate (22) and the

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 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.

Temperature System Magnum 91

4.2. Explanation of other notes

Note!

Draws attention to something special.

Important!

Indicates usage tips and other useful information.

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)! This job is to be carried out only by qualified service personnel.

 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 value for excess temperature protection.

Observe the fire point of the bath medium used.

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

Safety notes for the user

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

overflowing of the fluid.

 Prevent water from penetrating into the hot bath oil.

 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).

 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 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 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 damages in the interior of the unit.

 Observe all warning labels.

 Never remove warning labels.

 Never operate equipment with damaged mains power cables.

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

 Some parts of the unit and the pump connectors may become extremely warm or cold



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

Notice:

Check the safety installations at least twice a year!

 Excess temperature protection according to IEC 61010-2-010

With a screw driver turn back the adjustable excess temperature protection until the shutdown point (actual temperature).

 Low level protection

To check the function of the float of this unit it cannot be operated manually. The 5-graded level display should therefore be observed whenver refilling. If the bath liquid thickens or cracks, the instrument should be cleaned and checked by qualified personnel.

Temperature System Magnum 91

Caution:

The temperature controlling i.e. of fluids in a reactor constitutes normal temperature system 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:

When you have finished the application, it is recommended to keep on circulating the liquid in the bath or the external system for some time. Simultaneously set the working temperature to +20 °C to allow the temperature in the system to decrease slowly. Thus fractional over-heating of the bath liquid is prevented.

Preparations

5. Preparations

5.1. Installation

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

material. Using the castors (7a, 7b) move the unit to the intended location. For better stability, apply the holding breaks on the front casters (7a).

 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

 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: 35 °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 0.52 kg of refrigerant R404A, a room space of 1 m > For 0.68 kg of refrigerant R23, a room space of 1 m

 Only set up the unit in a room where enough fresh air is exchanged.

is required.

 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.

5.2. Cooling water connection

Notice: Cooling water circuit

If the heat exchanger is defective, small volumes of oil may leak into the cooling water. Therefore never connect the unit to the public water supply! Observe the laws and regulations of the water distribution company valid in the location where the unit is operated.

 Supply cooling water via the inlet (IN).

Conduct the cooling water via the outlet (OUT) in the respective sink or return flow circuit.

Cooling water connectors (13, 14) G3/4" external thread Cooling water see page 13

5.3. Connect the external system

Caution:

Securely attach all tubing to prevent slipping.

010

The temperature systems are designed for temperature application to closed, external systems (loop circuits). The temperature application of external, open systems is also possible. However, this requires a series of special measures which Julabo cannot influence like e.g. the protection of the bath liquid from environmental influences such as oxygen and air humidity. To profit from the system's rapid performance, ensure the tubing line between the temperature system and the connected external system is as short as only possible.

Temperature application to external closed systems.

 Remove the cap nuts from the pump connectors

Temperature System Magnum 91

(10, 11) and using tubing connect the external system (M24x1.5 / wrench 27 mm). To prevent the formation of bubbles in the loop circuit, the pressure line (10) is to be connected to the lower nozzle of the external system.

 Important:

OUT

Connect a piece of tubing to the overflow connector (12) and drain into a suitable vessel. (M16x1 / wrench 19 mm), which always has to be placed lower than the exit „Overflow“.

Notice: Leakage on shaft sealing

The shaft sealings of the pump are never absolutely tight. But this does not have an impact on the proper functioning of the instrument. The slight leakage that appears ensures good sliding properties of the sealing. Any excess fluid is drained via the overflow connector (12).

Preparations

5.3.1. Tubing

Recommended tubing:

Metal tubing, triple insulated, M124x1.5 , Temperature range -100 °C ... +350 °C

Order No. Length max. pressure

8 930 261 1.0 m 6.0 bar 4.0 bar

8 930 262 1.5 m 6.0 bar 4.0 bar

8 930 263 2.0 m 6.0 bar 4.0 bar

8 930 264 3.0 m 6.0 bar 4.0 bar

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 liquid to be pumped out within a short time.

This may result in:

 Fire hazard  Explosion hazard  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).

at 20 °C at 350 °C

+ 53 hidden pages