Julabo ME-16G, ME-31A Instruction Manual

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Operating Manual

Visco-Baths ME-31A

ME-16G ME-18V

ME-18V

19530504-V3.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

1.953.0504-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 ............................................................................................................................ 7

2.2. Technical specifications .................................................................................................... 8

Operating instructions .................................................................................................................10

3. Safety notes for the user .......................................................................................................10

3.1. Explanation of safety notes ..............................................................................................10

3.2. Explanation of other notes ................................................................................................10

3.3. Safety recommendations ..................................................................................................11

4. Operating controls and functional elements ..........................................................................13

4.1. Circulator..........................................................................................................................13

5. Preparations .........................................................................................................................15

5.1. Installation ........................................................................................................................15

5.2. Bath fluids ........................................................................................................................16

5.3. Filling / draining ................................................................................................................17

5.4. Countercooling .................................................................................................................18

6. Operating procedures ...........................................................................................................20

6.1. Power connection .............................................................................................................20

6.2. Switching on / Start - Stop ................................................................................................20

6.2.1. Switching on the circulator ...........................................................................................

7.1. Using the pre-settings in the

Setting of temperatures ...........................................................................................21

menu .....................................................................21

7.2. Direct setting of temperatures ..........................................................................................22

Safety installations, warning functions .....................................................................23

8.1. Excess temperature protection .........................................................................................23

8.1.1. Early warning system, low level protection ...................................................................24

8.2. Switch-over from warning to shutdown function................................................................25

8.3. Over and Sub temperature warning function ....................................................................26

Menu functions ........................................................................................................27

9.1. MENU PROGRAM – START ............................................................................................28

9.2. MENU PROGRAM – creation, administration ...................................................................30

9.3. MENU PUMP – Setting of pump pressure ........................................................................ 32

9.4. MENU CONFIG – Configuration of unit ............................................................................ 33

9.4.1. REMOTE ..................................................................................................................... 34

9.4.2. AUTOSTART ............................................................................................................... 34

9.4.3. OFF-MODE ................................................................................................................. 35

9.4.4. Setting of clock and date ............................................................................................. 35

9.4.5. RESET – Factory settings ........................................................................................... 35

9.5. MENU CONTROL – Control characteristics and parameters ........................................... 36

9.5.1. CONTROL – Control INTERNAL / EXTERNAL............................................................ 37

9.5.2. Dynamic internal .......................................................................................................... 38

9.5.3. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ............................................... 38

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ........................................................... 39

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY .................................................... 40

9.7. MENU ATC - Absolut Temperature Calibration ................................................................ 41

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL ................................................................... 43

9.7.2. ATC STATUS - YES / NO ............................................................................................ 43

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT ...................................................................... 44

9.7.4. Example: 3-point calibration for internal control .......................................................... 45

9.8. MENU LIMITS .................................................................................................................. 47

9.8.1.

Limits for internal control .............................................................................................. 48

9.8.2. Limits for external control ............................................................................................. 48

10. Troubleshooting guide / error messages ............................................................................... 50

11. Electrical connections ........................................................................................................... 52

12. Remote control ..................................................................................................................... 53

12.1. Setup for remote control ................................................................................................... 53

12.2. Communication with a PC or a superordinated data system ............................................ 54

12.3. List of commands ............................................................................................................. 55

12.4. Status messages ............................................................................................................. 57

12.5. Error messages ................................................................................................................ 57

13. JULABO Service – Online remote diagnosis ......................................................................... 59

14. Cleaning the unit ................................................................................................................... 60

14.1. Cleaning of bath tanks made of Plexiglas® and Makrolon® ............................................. 60

15. Repairing the unit ................................................................................................................. 61

16. WARRANTY PROVISIONS .................................................................................................. 62

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.

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.

Contact an authorized waste management company in your country.

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 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)

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.

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.

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

Warning label W26: Colors: yellow, black

Hot surface warning. (The label is put on by JULABO)

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.

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

Operator responsibility – Safety recommendations

Visco Baths

ME-31A

ME-16G

ME-18V

Working temperature range

°C

20 ... 60

20 ... 100

20 ... 150

Temperature stability

°C

±0,01

Bath opening

(9x9 cm or dia. 5,1 cm

3 pc

----

2 pc

(7,6x7,6 cm or dia. 5,1 cm)

----

2 pc

----

Bath depth

Filling volume from ... to

liters

25 ... 31

13 ... 16

15 ... 18

Overall dimensions (WxDxH)

50x20x56

∅29x48

36x24x53

Weight

11 9 17

Mains power connection

V/ Hz

208 ... 230 / 50-60

Current draw (at 208 V / 230 V)

8 / 9

Mains power connection

V/ Hz

100 ... 115 / 50-60

Current draw (at 100 V / 115 V)

8 / 9

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

2.2. Technical specifications

All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C bath fluid: water operating temperature: 70 °C Technical changes without prior notification reserved.

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).

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.

With a screwdriver turn back the adjustable excess temperature protection until the

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.

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

5. Preparations

22a 23 24

22b

• Place the circulator in an upright position..

Accessories:

5.1. Installation

• After filling, mount the viscometer.

• Cover the unused opening with the lid (24).

Bath openings: ME-31A 3 pc.  90 x 90 mm ME-16G 2 pc.  76 x 76 mm ME-18V 2 pc.  90 x 90 mm

• A suitable control thermometer can be placed in the flow through (23).

ME-31A, ME-18V For the Ubbelohde viscometer with mounting stand, place the insert (22a) in the bath opening. By that the bath opening changes from  90 x 90 mm to dia. 51 mm.

ME-16G For the Ubbelohde-viscosimeter with mounting stand, first fasten the insert (22b) under the bath opening.. By that the bath opening changes from  76 x 76 mm to dia. 51 mm.

Order-no.

8970294 Bath cover with 4 round openings 51 mm dia.

for ME-18V

8970295 Bath cover with 5 round openings 51 mm dia.

for ME-31A

Preparations

Caution:

corrosion in the bath, even in stainless steel.

Bath fluid

Temperature range

soft/decalcified water

5 °C to 80 °C

• No liability for use of other bath fluids!

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 control because it leads to calcification in the bath.

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

• Chloric water can cause pitting corrosion.

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

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. Filling / draining

Avoid contamination of the bath fluid with solvents.

Notice:

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

• 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).

• Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit, or before moving the unit.

• Store and dispose the used bath fluid according to the laws for environmental protection.

• Plexiglas and Makrolon baths are not resistent to solvents.

ME-31A

Filling

• Take care that no liquid enters the interior of the circulator.

• The filling height is dependent upon the viscometer used. Please follow the manufacturer’s instructions.

• After reaching the set temperature, please check and if necessary adjust the filling height.

• Recommended maximum filling level with water as bath liquid: 25 mm below the top panel.

• Recommended maximum filling level with bath oils: 30 mm below the top panel.

Draining

• Press the mains switch to turn the circulator off.

• Prepare a suitable bath tank to take the used bath

liquid.

• ME-31A and ME-16G Empty the bath tank with a siphon or an external pump.

ME-16G

Preparations

location where the unit is operated.

• ME-18V Slide a short piece of tube onto the drain port (20) and hold it into a pail.

Unscrew the drain tap (21) and empty the unit completely.

Tighten the drain tap

ME-18V

5.4. Countercooling

Notice:

Securely attach all tubing to prevent slipping.

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

For applications near the ambient temperature, the cooling coil must be connected to the water mains.

• Using tubing, connect the cooling coil (25 / exemple ME-16G) to the tap water supply, and lead the tap water in a sink through the return connector.

 A specific water flow rate of 100 ml/minute is sufficient to

compensate for the characteristic temperature.

 For applications near ambient temperature (20 °C), the cooling

water temperature should at least be 5 °C below the working temperature.

Pt100 RS 232

15 A

JULABO MVS

The ME-18 Visco-Bath has an insulated bath tank which, when equipped with a special cooling coil, can be used at temperatures below 0 °C.

Recommendation: Cooling with JULABO circulators: F32-XX to -10 °C FP50-XX to -20 °C FP89-XX to -40 °C



By installing the MVS controller (26) and a solenoid valve (27), sudden temperature increases can be rapidly reversed by tap water flowing through the built-in cooling coil. For applications requiring constant nearambient temperature, tap water is thus only used in small amounts.

 The circulator provides the necessary

control pulse via the connector (15).

Cooling coil connectors (25)

Order No. Description

9 790 000 MVS controller 8 980 700 Solenoid valve for cooling water

Operating procedures

Caution:

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

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

Check to make sure that the line voltage matches the supply voltage specified on the identification plate. Deviations of ±10 % are permissible.

The VFD COMFORT-DISPLAY indicates the message "OFF".

6. Operating procedures

6.1. Power connection

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

6.2. Switching on / Start - Stop

earth)!

• be always easily accessible.

• Never operate equipment with damaged mains power cables.

• Regularly check the mains power cables for material defects (e.g. for cracks).

6.2.1. Switching on the circulator

Switching on:

• Turn on the mains power switch (1).

 The unit performs a self-test.

Then the software version (example: V 1.xx) appears. The display „OFF“ or „R OFF“ indicates the unit is ready to operate.

 The circulator enters the operating mode activated before switching

the circulator off: keypad control mode (manual operation) or

remote control mode (operation via personal computer).

Start:

• Press The actual bath temperature is displayed on the VFD COMFORTDISPLAY. The circulating pump starts with a slight delay.

Stop:

key.

• Press or

Keep

key.

key pressed.

7. Setting of temperatures

7.1. Using the pre-settings in the menu

Werkseinstellungen: SETPNT 1 25 °C SETPNT 2 37 °C SETPNT 3 70 °C

Press the

3 different working temperatures can be adjusted. Their values are freely selectable within the operating temperature range.

key to call up the menu for temperature selection.

 The temperatures can be set in start or stop mode.

 Press key if a value is to be retained

Setting of working temperature in the menu

1. Press the key

2. Select SETPOINT 1 or 2 or 3 using the key

3. Confirm by pressing the

. The value flashes

or .

key.

 The circulator uses the new working temperature value for temperature

control.

Example: Adjustment/modification of the pre-setting of "SETPOINT 3"

1. Press the

2. Select SETPOINT 3 by pressing the Example: SETPNT 3 / 70.00 °C

key.

3. Keep the (example: <70>)

4. Adjust value by pressing the

and confirm by pressing the The decimal digits flash

Confirm once more by pressing the Example on the left: SETPNT 3 / 85.00.

key pressed until the integer digits flash .

key and the

key.

and can be adjusted if desired.

key.

key to 85.00 °C

 If the active setpoint (SETPNT) is changed, the new value is

immediately used for the control of the working temperature. The heater control indicator flashes.

 If the other two setpoints (not activated for control) are changed the

MENU has to be left by pressing the key after the decimal

digits have been confirmed

Notice: Refer to SETPOINT MAX / MIN in chapter

9.8. MENU LIMITS

Setting of temperatures

 The temperatures can be set in start or stop mode.

7.2. Direct setting of temperatures

The circulator uses the setpoint of SETPNT 1 or 2 or 3 for temperature control

The indicated setpoint temperature can be changed directly any time. Example: change 25.00 °C to 50.00 °C

1. By pressing the key SETPOINT< example on the left: >SETPNT / 1 25.00°C<.

The integer digits flash

2. By pressing the keys

50.00 °C and is confirmed by pressing the

The decimal digits flash and can be adjusted if desired. Confirm once more by pressing the

the circulator switches to the active

(example: <25>).

and

the value is changed to

key.

 The circulator uses the new working temperature value for temperature

control.

Warning:

8. Safety installations, warning functions

Check the safety installations at least twice a year! Refer to ( page 12)

SECVAL (Security Values)

 SAFETMP  AL-TYPE  OVERTMP  SUBTEMP

Settings for the excess temperature protection > SAFETMP< and for the warning functions for high > OVERTMP< and low > SUBTEMP< temperature are made in a menu which is called up by pressing the key

Menu item > AL-TYPE< allows choosing between a warning and an alarm cut-off for the menu items > OVERTMP< and > SUBTEMP<.

8.1. Excess temperature protection

The excess temperature protection must be set at least 25 °C below the fire point of the bath fluid used! In case of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings!

This excess temperature protection is independent of the control circuit. When activated heater and circulating pump are completely shut down. The alarm is indicated by optical and audible signals (continuous tone) and the error message "ALARM-CODE 14" appears on the VFD COMFORT-DISPLAY together with the ticker: > EXCESS TEMPERATURE PROTECTOR ALARM-CHECK ADJUSTMENT <

Setting range: 20 °C ... 230 °C

 Rough setting can be effected by using the temperature scale.

Exact setting:

1. Press the key

2. Press the

3. Set the new shutdown value within 30 seconds using a screwdriver. The value is indicated on the VFD COMFORT-DISPLAY Example: SAFETMP / 100 °C

Recommendation: Set the excess temperature protection at 5 °C to 10 °C above the working temperature setpoint.

to display menu >SAFETMP<.

key and the set shutdown value is indicated.

Safety installations, warning functions

Warning:

8.1.1. Early warning system, low level protection

This low level protection is independent of the control circuit and is divided into two sections:

1. Switch in stage 1 recognizes a defined fluid level An audible warning sounds (interval tone) and together with the

ticker: > LOW LEVEL WARNING-FILL MEDIUM < a message appears on the VFD COMFORT-DISPLAY:

Refill the bath fluid!

2. Switch in stage 2 recognizes a low fluid level If stage 2 of the low level protection according to IEC 61010-2-

010 is triggered, a complete, all-pole shutdown of heater and circulating pump is effected A continuous alarm sounds and together with the ticker: > LOW LEVEL ALARM-FILL MEDIUM < a message appears on the VFD COMFORT-DISPLAY:

.

.

When adding bath fluid, always us the type of fluid which is identical with the fluid in the bath. Bath oils must not contain any water and should be pre-heated approximately to the current bath temperature! Explosion hazard at high temperatures!

Turn off the unit with the mains switch, refill bath fluid and turn the unit on again!

3. Float

4. Circulating pump

5. Heater

Factory setting:

8.2. Switch-over from warning to shutdown function

If a shutdown of functional elements (e.g. heater, circulating pump) is required when the limit values are exceeded or undercut the circulator can be changed over from warning function >WARNING< to shutdown function >ALARM<.

>WARNING<

1. Press the key

2. Select the menu >SECVAL -AL-TYPE< by pressing the

3. Press the (Example: WARNING)

4. Change the parameter by pressing the

pressing the or

press the



Setting >WARNING< A mere warning function with optical and audible warning signal (interval tone) A message appears on the VFD COMFORT-DISPLAY:

OVERTMP SUBTEMP

• Setting >ALARM<

Temperature limit with shutdown of heater and circulating pump. An audible alarm sounds (continuous tone) and a message appears on the VFD COMFORT-DISPLAY:

key.

key and the set parameter will flash .

key and confirm by

key.

key if the parameter is to retained.

OVERTMP SUBTEMP

Safety installations, warning functions

8.3. Over and Sub temperature warning function

Over temperature

Sub temperature

If the observance of a working temperature value >SETP< has to be supervised for a sensitive temperature application, then set over and sub temperature warning values. In the example below the SETPOINT 85 °C is surrounded by the values OVERTMP 87 °C and SUBTEMP 83 °C. The electronics immediately register if the actual temperature breaches one of the set limit values. The resulting reaction is defined in a further menu item. (See chapter 8.2. )

1. Press the key

2. By pressing the >SUBTEMP<.

3. Press the

4. Change the values to 87. °C and/or 83. °C by pressing the

key and confirm with the key.

The decimal digits flash and can be adjusted if desired. Confirm once more by pressing the

See above examples.

key. The integer digits flash

key select the menu >OVERTMP< or

and

key.

 The warning functions are only activated if the actual bath temperature

remains within the set limit values for 3 seconds after switch-on.

Recommendation:

Set the over temperature warning value >OVERTMP< 5 °C to 10 °C above the working temperature setpoint.

Set the sub temperature warning value >SUBTMP< 5 °C to 10 °C below the working temperature setpoint.

9. Menu functions



Menu level 1

The term „Menu functions“ refers to settings such as

Start program Page 28



Administration and creation of programs Page 30

Electronically adjustable pump capacity Page 32

Configuration of the unit Page 33 REMOTE – on / off (remote control via RS232) AUTOST – AUTOSTART on / off OFF-MODE – pump on / off TIME / DATE – setting time and date RESET – factory settings

Control characteristics and parameters Page 36 C-TYPE – Internal or external control

DYNAMICS - internal Control parameter - XP-, TN-, TV- INTERNAL

Control parameter - XP-, TN-, TV- XPU-, EXTERNAL

Adjustable interface parameters Page 40 BAUD RATE, PARITY, HANDSHAKE

ATC - Absolute Temperature Calibration, Page 41 Sensor calibration INTERNAL SENSOR, Sensor calibration EXTERNAL SENSOR 3-point calibration

Limitations of temperature and capacity Page 47 SETPOINT MAX / MIN - Maximum and minimum setpoint HEAT MAX – Set maximum heating COOLING MAX – Set maximum cooling INTERN MAX / MIN – Limitation of the temperature range BAND HIGH / LOW – Band limit

1. Open the menu by pressing the

2. Use the

3. Press the key to change to menu level 2.

Press the

keys to scroll in menu level 1.

key if settings are to be retained.

key.

Menu functions

This menu will start a previously set program.

Menu level 1

9.1. MENU PROGRAM – START

 Requirements:

Start-Menu



Level 2 Parameter level



1. Create a program. (refer to next chapter)

2. Return to the Start-MENU and confirm the desired setting of each

MENU item with the key

3. Set a start time (>TIME< >DATE< >YEAR<) if the program is to be started by the internal timer.

> STEP< Program start at section 1 … 10

> RUNS < Number of repetitions 1 ... 99 > END< Status at end of program (STDBY/SETPNT)

Standby or last setpoint > GO < Time of start (NOW/TIMER)

 Press the key if a parameter is to be retained.

Correction function for parameters or values (prior to OK)

• Set program step with

example: STEP 1

and





• Set number of runs with

example: 1 run

and

• Set desired parameters with

and .

 (STDBY / SETPNT)

Parameter STanDBY: the circulator switches to – OFF-. Parameter SETPoiNT: the circulator constantly keeps the temperature at the value of the last step.

• Confirm >NOW< with the key and the program

will start immediately

 or

start at the set time under parameter (TIMER ). Set time in the example below:

09. August 2009, 11:15 hrs

The started program

I xxx.xx - internal actual value or



Submenu TIMER

Parameter level



 set the time for the start of the program in the

submenu >TIMER<.

>TIME< hours/minutes (hh:mm), set both values one after the other and confirm

• hours flash, set by pressing

minutes flash, set by pressing

>DATE< day/months (TT/MM), set both values one after the other and confirm.

• day flashes, set by pressing

month flashes, set by pressing

>YEAR< year





Display of time until start: In line 3 the notice >TIMER< and the set values for „TIME“ and „DATE/YEAR“ are alternately indicated

 Check the correct setting of the internal real time clock if required

(see MENU CONFIG)

After the start the program will indicate the currently calculated setpoint in line 2 S XX.XX. The value increases within the time period >TSLICE< until the target temperature >SETPNT< of the section is reached. If the time period in a section is set to „0“, the next section will not begin until the target temperature has been reached.

• Set the year with

and .

 The program starts at the set time.

Use the edit keys approximately every 4 seconds between the current section (STEP XX) and the

A remaining time of the section B remaining time of the program C current bath temperature

to scroll to line 3. The display changes

Menu functions

Termination / Interruption of a program

The integrated programmer permits fast and easy programming of setpoint

10 20 30 40 50 60 10 20 30 40 50 60 10

[min]

100

150

200

°C

Step 1 2 4

6 8

retroactively and the integrated into the program.

E xxx.xx – external actual value

D RUN – the program has started or

PAUSE – the progress of the program has been interrupted by pressing the remain at the last calculated setpoint Continue with the



The program can be terminated any time by pressing the key .

key. While the time is stopped the temperature will constantly

key.

 In case of power failure the program is interrupted.

The circulator switches to –OFF- .

 If the AUTOSTART-function is activated the programmer starts again at

the point in time approx. 5 minutes prior to the interruption. However, an uncontrolled change of the bath temperature has occurred.

9.2. MENU PROGRAM – creation, administration

Menu level 1

1 program

10 sections

temperature sequences. This temperature sequence is called program. A program is composed of individual sections (STEP). The sections are defined by duration (TSLICE) and target temperature. The target temperature is the setpoint (SETPNT), which is achieved at the end of a section. The programmer calculates the temperature ramp from the difference in time and temperature.

STEP (Nr.) 1 2 4 6 8 SETPNT (°C) 100 180 180 75 75 TIME (hh.mm) 00:20 00.10 00:20 00:50 00:20

Graph1

 Sections without set value and time are skipped. They can be defined

Menu level 1



>EDIT< Create, administer program > STEP< Program step (1 ... 10) >SETPNT < Temperature setpoint of step ... >TSLICE< Duration of step ... > DELETE< delete program step (01 … 10, ALL)

 Press key, if a parameter is to be retained.

Correction function for parameters or values (prior to OK)

Level 2 Level 3 Parameter level







• Set program step with

 (Example: EDIT STEP 01)

 For STEP 01 the values for SETPOINT 01 and

TSLICE 01 are set one after the other

(STEP 1 … 10)

and



(time slice)

(values within working temp. range)



• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing



• Set duration by pressing and



Delete program Program steps can be deleted individually or entirely. (STEP 01, 02,… 10, ALL).

• Set parameters by pressing and

Menu functions

The pump flow is pre-adjusted in the factory and can be modified to

(for small bath tanks)

9.3. MENU PUMP – Setting of pump pressure

The capacity of the circulating pump is set by adjusting the motor speed

Settings: stage / LEVEL 1 ... 4

Factory setting: stage 1

Display:

Flow rate: 11 ... 16 l/m Pump pressure: 0,22 ... 0,45 bar

1. Press the

2. Select the menu >PUMP< pressing the

pressing the The set parameter flashes (example: >LEVEL 2<)

3. Change the parameter by pressing

or Press the

with illuminated indicator

key.

key

key.

key if the parameter is to be retained.

key and confirm by

and confirm by pressing the

suit user requirements.

• Using a screwdriver turn the screw (1) anti-clockwise by 360 °.

• Using flat pliers turn the marking of the slide (2) to the desired

position.

• Tighten the screw.

Examples: Internal applications in the bath

A 100 % internal bath circulation

(for large bath tanks)

B Reduced internal bath circulation

(for smooth surface of bath fluid)

External/internal applications

C 40 % external discharge,

60 % internal circulation (for large bath tanks)

D 80 % external discharge,

20 % internal circulation

Level 3

Parameter level

9.4. MENU CONFIG – Configuration of unit

Menu level 1

 A RESET can be effected only in the >OFF< mode.

Switch off circulator by pressing the CONFIGURATION.

key and call up the menu





Level 2 Parameter level

 Press the key if a parameter is to be

retained. Correction function for parameters and values (prior to OK).

• Switch on and off remote control by pressing

and

 Control display in the topline

for Remote

 For remote control refer to 53  Connect RS232 with PC.

• Switch on and off autostart by pressing

AUTOSTART on = on AUTOSTART off = off

See WARNING page 34

and

• Switch on and off OFFMODE by pressing

PUMP ON continuous operation of circulating pump

PUMP OFF circulating pump is linked to Start/Stop

and



• Hours flash, set by pressing

• Minutes flash, set by pressing



• Day flashes, set by pressing

• Month flashes, set by pressing

Menu functions

Level 3

Parameter level

Notice:

In remote control mode the values need to be resent by the PC via the



9.4.1. REMOTE

Factory setting: OFF



• Year flashes, set by pressing

• Return to factory settings by pressing

RESET returns all set values to the factory setting except for date and time.

 A RESET can be effected only in the –OFF- mode.  During the message –RUN- all parameters are

reset to factory settings.

The control electronics offer two ways of adjusting a setpoint.

1. Adjustment of setpoint using the keypad or the integrated programmer.

2. Adjustment of setpoint via the serial interface RS232 using a PC or a superordinated process control system.

RS232

9.4.2. AUTOSTART

Warning:

For supervised or unsupervised operation with the “AUTOSTART“ function avoid any hazardous situation to persons or property

Take care to fully observe the safety and warning functions of the circulator.

Factory settings: OFF

 The topline of the VFD-DISPLAY shows a bright „R“ for remote

control; - remote control discontinued.

IMPORTANT: additional measures for remote control

 Connect the circulator to the PC using an interface cable.  Check the interface parameters of both interfaces (circulator and PC)

and make sure they match. (refer to 12.1. Setup for remote control page 53)

The circulator has been configured and delivered by JULABO in accordance with the NAMUR recommendations. This means for the start mode that the unit must enter a safe operating status after a power failure. This safe operating status is indicated by the message „OFF“ or „R OFF“ on the VFD COMFORT-DISPLAY. A complete, all-pole shutdown of the main functional elements such as heater and pump motor is effected. The values set on the circulator remain saved and the unit is restarted by pressing the start/stop key in manual control.

interface.

start of the circulator by pressing the mains switch or using a timer.

9.4.3. OFF-MODE

If such a safety standard is not required, the NAMUR recommendations can be bypassed with the AUTOSTART function thus allowing a direct

Factory setting: PMP OFF

Usually the circulating pump is controlled with the key start/stop command. If the circulating pump is to work in the –OFFmode, the adjustment can be set in a sub-menu.



The pump motor will be shutdown in case of alarm anyhow.

9.4.4. Setting of clock and date

The internal real time clock allows starting a program any time. The clock is set to the local mean time (MEZ) at the factory.

 If the unit is operated in a different time zone, the clock can be

adjusted in this menu.

 Change summer/winter time in this menu

9.4.5. RESET – Factory settings

A Reset will return all values to factory setting except for date and time.

 A RESET can be effected in the >OFF< mode only.

Switch off the circulator by pressing the key menu CONFIGURATION.

or the

and call up the

Menu functions



for parameters or values (prior to OK)

C-TYPE INTERNAL

•

C-TYPE EXTERNAL

•

9.5. MENU CONTROL – Control characteristics and parameters

Menu level 1

The circulator is qualified for internal and external temperature control The switchover is carried out in the menu >C-TYPE< .(INT or EXT).

 For external temperature control and measurement connect a Pt100

external sensor to the socket at the rear of the circulator.

 Press the key if a parameter is to be retained. Correction function

Level 2 Parameter level



• Switchover of control type by pressing

and

 The control type can be adjusted in the -OFF-

mode only.

 Depending on the adjustment only the active

parameters are displayed.

• The parameter flashes, switch by pressing

and

 This parameter affects the temperature sequence

in case of internal control.

• The parameter flashes, set by pressing



0.1 … 99.9



3 … 9999



0 … 999



0.1 … 99.9



3 … 9999

The parameter flashes, set by pressing

Level 2 Parameter level

•

(See page 41).

Attention:

circuit

The parameter flashes, set by pressing



0 … 999



0.1 … 99.9

The parameter flashes, set by pressing

9.5.1. CONTROL – Control INTERNAL / EXTERNAL



Switchover can only be effected if a Pt100 external sensor is connected.

Pt100

Factory setting: INT

IMPORTANT: Additional measures for external temperature control

 Suggested settings for external temperature control:

BAND HIGH / LOW and INTERN MAX / MIN see chapter >LIMITS< page 47.

 Sensor calibration of the Pt100 external sensor is carried out in the

menu >ADJUST<, submenu >ATC SENOR - EXT<; set ATC STATUS< to >OFF<

Place the external sensor into the temperature-controlled medium and securely fix the sensor.

Accessory: Pt100 external sensor

Order No. Description Material Cable 8981003 200x6 mm Ø, stainless steel 1.5 m

8981005 200x6 mm Ø, glass 1.5 m 8981006 20x2 mm Ø, stainless steel 1.5 m 8981010 300x6 mm Ø, stainless steel 1.5 m 8981015 300x6 mm Ø, stainless steel / PTFE coated 3 m 8981013 600x6 mm Ø, stainless steel / PTFE coated 3 m

Pt100 M+R

8981016 900x6 mm Ø, stainless steel / PTFE coated 3 m 8981014 1200x6 mm Ø, stainless steel / PTFE coated 3 m 8981103 Extension cable for Pt100 sensor 3.5 m 8981020 M+R in-line Pt100 sensor

The M+R in-line Pt100 sensor is a flow sensor and can be installed loop

Menu functions

°C

APER

NORM

Setpoint temp. stability

°C

APER

NORM

temperature ramp

temp. stability

Setting range: 0 ... 999

Setting range: 0.1 ... 99.9

9.5.2. Dynamic internal

This parameter affects the temperature sequence only in case of internal control.

Factory setting: APER (aperiodic)

Possible parameters:

NORM Allows for reaching the setpoint faster – with

setpoint change or ramp function – but overshooting of up to 5 % is possible.

APER Ramp function: the increase of temperature

occurs temporally offset and achieves the target temperature without overshooting. Setpoint change: The temperature increases at the same rate, the target temperature is achieved without overshooting.

 With both settings constant temperature is achieved

after approximately the same time.

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

In most cases the control parameters preset in the factors are adequate for achieving an optimum temperature sequence.

Setting range: 0.1 ...99.9

Setting range: 3 ...9999

The control parameters allow adjustment to special control processes.

Proportional range >Xpu<

The proportional range Xpu of the cascaded controller is only needed for external control.

Optimum setting

Control parameters XP-, TN-, TV- INTERNAL as well as

Xp too low

Tv/Tn too low

Xp too high or Tv too high

Tv/Tn too high or Xp too high

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

Setting range: 0.1 ... 99.9

Setting range: 3 ...9999

Setting range: 0 ... 999

In most cases the control parameters preset in the factory are adequate for achieving an optimum temperature sequence. The control parameters allow adjustment to special control processes..

Proportional range >Xp<

The proportional range is the range below the setpoint in which the control circuit reduces the heating capacity from 100% to 0 %

Reset time >Tn< (Integral component)

Compensation of the remaining control deviation due to proportional regulation. An insufficient reset time may cause instabilities. Excessive reset times will result in unnecessary prolongation of compensation of the control difference.

Lead time >Tv< (Differential component)

The differential component reduces the transient time. An insufficient lead time will prolong the time required for compensation of disturbance effects and cause high overshooting during run-up. An excessive lead time could cause instabilities (oscillations)

Optimization instructions for the PID control parameters

-EXTERNAL

The heat-up curve reveals possible faulty settings of the control parameter.

Inappropriate settings may produce the following heat-up curves:

Menu functions

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY

Menu level 1

For communication between circulator and a PC or a superordinated process control system the interface parameters of both units must be identical.

 For remote control refer to page 53



Level 2 Parameter level

Factory settings: 4800 Baud even hardware handshake



 Press the key if a parameter is to be

retained.

• The parameter flashes, switch by pressing

and

• The parameter flashes, switch by pressing



even: Data bits = 7; Stop bits = 1

odd: Data bits = 7; Stop bits = 1

no: Data bits = 8; Stop bits = 1

and

• The parameter flashes, switch by pressing



Xon/Xoff-protocol (Software handshake) Protocol RTS/CTS (Hardware handshake)

and

°C

T 1

°C

T 1

°C

B (INT)

°C

B (EXT)

Pt100

ext

9.7. MENU ATC - Absolut Temperature Calibration

ATC serves to compensate a temperature difference that might occur between circulator and a defined measuring point in the bath tank because of physical properties.

Example: 1-point calibration

For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted working temperature. This value is then set on the circulator in the menu >ATCalibration< under menu item > CTEMP X <. This can be a 1-point, 2-point or 3-point calibration.

3-point calibration

Principle:

1 = Original curve

M = Temperature measuring instrument with temperature sensor B = Bath tank (INTernal or EXTernal) T = circulator

CT = Temperature on measuring point TT = Temperature on circulator

Menu functions

meter is to be retained.

Menu level 1



Level 2 Parameter level



 Press the key if para

Correction function for parameters or values (prior to OK).

• The parameter flashes, switch by pressing

and

 On level 2 a (I) is indicated for internal or an (E)

for external.

Example:

• The parameter flashes, switch by pressing

and

 >NO< Carry out an ATC calibration  >YES< return to standard operation after

calibration.

• The parameter flashes, switch by pressing

and

 A >1-point<, >2-point< or >3-point< calibration

can be carried out.

The selected calibration is indicated on level 2 by 1 or 2 or 3.

The value >TMPVAL< is only indicated



 In addition the measured temperature value

>CALVAL X< is saved during the next step.

• Integer digits flash, set by pressing



• Decimal digits flash, set by pressing



If only a 1-point calibration is carried out, the following menu items are not indicated anymore

The value is only indicated



• Integer digits flash, set by pressing





If only a 2-point calibration is carried out, the following menu items are not indicated anymore

• Decimal digits flash, set by pressing

The value is only indicated

• Integer digits flash, set by pressing



• Decimal digits flash, set by pressing

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL

In the first submenu the ATC function is set for the >INTERN< internal or the >EXTERN< external temperature sensor.

Calibration can be carried out for the internal temperature sensor and for the external temperature sensor connected to the socket „ext. Pt100“. The circulator is able to save both parameter sets. However only the one which has been set under menu item >ATC SENSOR < is displayed.

9.7.2. ATC STATUS - YES / NO

In the second submenu the ATC function for the temperature sensor selected above is activated >YES< or deactivated >NO<.

>YES< (factory setting) The controller of the circulator uses the original

curve of the temperature sensor or the new curve measured during the ATC calibration.

Important: Set to >NO< during the calibration process

>NO< An ATC calibration is to be carried out.

Important: Set to >YES< after calibration.



In the > ATC STATUS < >YES< the ATC calibration always affects the current working temperature; also the one set via interface.

Menu functions

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

A >1-point<, >2-point< or >3-point< calibration can be carried out.

First geometrically define the location for calibration (measuring point CT), then determine the temperature values of the calibration points. The type of calibrations also determines the number of the following pairs of values indicated on the LCD DIALOG-DISPLAY.

Pairs of values:

TMPVAL X: Circulator temperature 1 or 2 or 3 (actual value TT )

The actual temperature of the bath is simultaneously saved with the “calibration value“ >CALVAL< and can be indicated for control purposes (value does not flash).

CALVAL X: Calibration temperature 1 or 2 or 3 (actual value CT )

The „calibration value“ is determined with a temperature measuring device and saved under menu item >CALVAL<.

(value flashes

)



Level 2

Parameter level

9.7.4. Example: 3-point calibration for internal control

In the temperature range from 80 °C to 160 °C the calibration curve of the

temperature sensor (TT) is to be adjusted to the actual temperatures at measuring point (CT).

Menu level 1

80.00 °C

120.00 °C

160.00 °C

1. Set circulator to internal control: MENU CONTROL page 36

The type of control can be set only in the –OFF- mode.



2. Set working temperature setpoint – SETPNT:

Refer to „Direct temperature setting “ page 22

• By pressing the key >SETPOINT< see example on the left: >SETPNT / 1 25.00°C<.

The integer digits flash

• Change the value to 80.00 °C by pressing the keys

confirm by pressing the key The decimal digits flash.

Confirm once more by pressing the key

• The bath is heated up. Wait for approx. 5 minutes until the temperature is constant.

the circulator switches to the active

(Example: <25>).

and and

Menu level 1

3. Reading of temperature measuring device

Read the value of measuring point CT on the device and enter under menu item >CALVAL X< by using the keypad.

>CALVAL 1< (79.70 °C) >CALVAL 2< (119.50 °C) >CALVAL 3< (159.30 °C)

4. Calibration

 Press the key if parameter is to be retained. Correction function for

parameters or values (prior to OK).

 Setting is required only for the first calibration point.

Set SENSOR INTERN:



• The parameter flashes, switch by pressing

and .

Menu functions

and .

A >3-point< calibration is carried out.

Return to 2. Set working temperature value SETPNT: 120.00 °C

Return to 2. set working temperature value SETPNT: 160.00 °C

The 3-point calibration is completed



An ATC calibration is to be carried out. Set to >NO<

• The parameter flashes, switch by pressing

and .

The value >TMPVAL< is only indicated In addition the measured value >CALVAL X< is saved

during the following step

• Integer digits flash, set by pressing

(79) +

• Decimal digits flash, set by pressing

(70) +

The first of 3 points is calibrated.

The value is only indicated



• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

The second of 3 points is calibrated.

The value is only indicated.

• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

(119) +

(50) +

(159) +

(30) +

5. Return to standard operation

• Set >YES< after calibration.



(Standard operation)



OK).

In case of external control these menu items are additionally indicated.



9.8. MENU LIMITS

Menu level 1

Level 2 Parameter level



0 … 100 %

Press the Correction function for parameters or values (prior to

• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

• The value flashes, set by pressing

key if parameter is to be retained.

• The value flashes, set by pressing mit



0 … 100 %



• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

• Integer digits flash, set by pressing

• Decimal digits flash, set by pressing

• The value flashes, set by pressing

Menu functions

9.8.1. Limits for internal control

SETPOINT MAX / MIN – Maximum and minimum setpoint

Restriction of the adjustable temperature range

The limitation of the operating temperature range effects the temperature

setting in the menu with the key

Only setting of working temperatures which lie within the determined limits is possible Existing settings for SETPNT 1, -2, -3, as well as those for >OVERTMP< and > SUBTMP < (refer to page 26), are automatically deferred into the limit range.

Setting range

 SET MAX > SET MIN

Interchange of values is not possible.

9.8.2. Limits for external control

Set maximum heating / cooling

The heating and cooling capacity of the unit are adjustable. 100 % corresponds to the technical specification of the equipment.

Setting range:

HEAT MAX – 0 to 100 % in 1 % steps COOLING MAX – 0 to 100 % in 1 % steps

: -94,90 °C ... +200,0 °C

> SAFETMP <

INTERN MAX / MIN Restriction for the temperature range of the internal bath.

Setting range:

The limits INT MAX and INT MIN are only active in external control. INT MAX and INT MIN determine fixed limits for the temperature within the internal bath. The temperature controller cannot exceed these limits even if it would be necessary for achieving the temperature in an external system. Therefore it is possible that the external setpoint cannot be achieved.

Sense of limit setting:

-94,9 °C ... +200,0 °C

 Protects the bath fluid from overheating.  Prevents an undesired alarm shutdown by the excess temperature

protection - >ALARM CODE 14<. Set the value of > INT MAX at least 5 °C below the value of >SAFETMP<.

 Protects the pump motor from high viscosity of the bath fluid at low

temperatures.

 For refrigerated circulators. Freezing protection when using water as

bath fluid.

10203040506010203040506010

[min]

100

150

200

°C

System extern

Bad intern

BandOben

BandUnten

Sense of a band limitation:

tors from

BAND HIGH / LOW – Band limitation

The band limitation is active during external control. Varied, practiceoriented setting are feasible for heat-up and cool-down phases.

Setting range: 0 °C ... 200 °C

BAND HIGH and BAND LOW allow for the limitation of the difference between the temperatures in the internal bath and the external system to any maximum value for the heat-up and cool-down phase. During the heat-up phase this difference value is always added to the actual external temperature. During the cool-down phase the difference value is subtracted.

 Protection of objects and samples by

gentle temperature control

 Protection of e.g. glass reac

thermal shock.

Troubleshooting guide / error messages

Repair by authorized JULABO service personnel.

Reconnect the control line or repair short-circuit.

Type of warning: set to >warning< or >alarm< (refer to page 25)

Typ of warning: set to >warning< or >alarm< (refer to page 25)

Cable of working temperature sensor is disconnected or short-circuited.

10. Troubleshooting guide / error messages

Alarm with complete shutdown:

If one of the following failures occur a complete, all-pole shutdown of the heater and circulating pump is effected.

“ lights up and a continuous signal sounds.

„ The code for the cause of alarm is indicated on the VFD COMFORTDISPLAY.



Alarm without shutdown:

The code for the cause of alarm is indicated on the VFD COMFORTDISPLAY. The warning signal sounds in regular intervals. The messages appear every 10 seconds.

Press the key

Error message with ticker: >LOW LEVEL ALARM-FILL MEDIUM < Low level alarm The circulator is operated without or insufficient bath fluid.

Switch the unit off with the mains switch, refill bath fluid and switch on! Tube breakage has occurred (insufficient filling level of bath fluid caused by

pumping-out) Replace the tubing and refill bath liquid.

The float is defect (e.g. transport damage).

Error message with ticker: > REFRIGERATOR ALARM-CHECK CONNECTION < During the self-test after switch-on a short –circuit is detected between pin 2 and pin 4 of the control line or the control line was disconnected during operation.

Error message with ticker: > EXCESS TEMPERATURE WARNING-CHECK LIMITS < Excess temperature warning or Excess temperature alarm

to stop the signal

Error message with ticker:

> LOW TEMPERATURE WARNING-CHECK LIMITS < Low temperature warning or Low temperature alarm.

Error message with ticker: > WORKING SENSOR ALARM-CALL SERVICE <

Other errors

defect.

short-circuited

1545

4 s

By quickly switching off and restarting the unit the alarm is cancelled.

A M P

Error message with ticker: >SENSOR DIFFERENCE ALARM-CHECK VISCOSITY AND PUMP STAGE< Defect of working or excess temperature protector. Working temperature sensor and excess temperature protector report a temperature difference of more than 35 K.

Error message with ticker: > INTERNAL HARDWARE ERROR-CALL SERVICE <

Error in A/D converter

Error message with ticker: > EXCESS TEMPERATURE PROTECTOR ALARM-CHECK ADJUSTMENT <

Excess temperature protector defect. The protection temperature is below the set working temperature setpoint.

Set the protection temperature to a higher value.

Error message with ticker: > EXTERNAL SENSOR ALARM-CHECK EXTERNAL SENSOR <

External control was set but the Pt100 external senor was not connected or is

Error message with ticker: > SAFETY SENSOR ALARM-CALL SERVICE <

The cable of the excess temperature protector has been disconnected or

Error message with ticker: > LOW LEVEL WARNING-FILL MEDIUM <

The early warning system for low level reports a critical fluid level. Refill bath fluid.

If the error occurs once more after the restart, a remote diagnosis is required.

Error message with ticker: > CONFIGURATION ERROR-PRESS OK<

The configuration of the circulator does not correspond with its current application.

Press the

key for a non-recurring, automatic change of the configuration. In this case please call the JULABO Technical Service or an authorized dealer.

Disturbances that are not indicated.

The electronic pump motor is overload-protected by an electronic current limiter. If viscosity of the bath fluid is or becomes too high, the motor stops running.

Mains circuit breakers (resettable) 15 A

Electrical connections

cellular phones).

Shield Plug

Look on

soldering side.

Pt100

remote control of the circulator.

9 6

RS232 interface cable

8 980 073

RS232 interface cable 9-pol./9-pol. , 2,5 m

8 900 110

USB interface adapter cable

11. Electrical connections

Notice:

Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. The unit ensures safe operation if connecting cables with a maximum length of 3 m are used. The use of longer cables does not affect proper performance of the unit, however external interferences may have a negative impact on safe operation (e.g.

Socket for external Pt100 sensor

Pin assignment:

ext. Pt100

Pin Signal 1 I+ 2 U+ 3 U 4 I-

The shield of the connecting cable is electrically connected to the plug housing and the sensor tube.

RS232C

Accessories:

RS232 serial interface

This port can be used to connect a computer with an RS232 cable for

Pin assignments RS232: Pin 2 RxD Receive Data

Pin 3 TxD Transmit Data Pin 5 0 V Signal GND Pin 7 RTS Request to send Pin 8 CTS Clear to send

Pin 1; 4; 6, 9 Reserved - do not use!

Circulator (9-pol) PC (9-pol) Pin 2 RxD ⇔ Pin 3 TxD Pin 3 TxD ⇔ Pin 2 RxD Pin 5 GND ⇔ Pin 5 GND Pin 7 RTS ⇔ Pin 8 CTS Pin 8 CTS ⇔ Pin 7 RTS

Order No. Description

circulators or as output for alarm messages.

1 3

5 Cooling pulse

9 6

Like all parameters which can be entered through the keypad, interface parameters are stored in memory even after the circulator is turned off.

/ Control output

The

Circuit: Operation = relay powered Alarm = relay not powered

Pin assignment: Pin Signal

1 +24 V (I max. current 25 mA) 2 0 V 3 Alarm relay 4 Reserved - do not use!

connector may be used for control of JULABO refrigerated

12. Remote control

12.1. Setup for remote control

1. Check the interface parameters for both interfaces (on circulator and PC) and make sure they match.

RS232C

(Serial interface refer to page 40)

2. In the menu > MENU CONFIG < set the menu item > REMOTE < to > ON < .

3. Connect both units with an interface cable..

Remote control

If the circulator is put into remote control mode via the configuration level, the

In remote control mode, the start command and all values to be set must be

A transfer sequence consists of:



To ensure a safe data transfer, the time gap between two commands should

The out commands are valid only in remote control mode.

Response from the circulator: 55.5↵

12.2. Communication with a PC or a superordinated data system

VFD COMFORT-DISPLAY will read “R -OFF-” = REMOTE STOP. The circulator is now operated via the computer. In general, the computer (master) sends commands to the circulator (slave). The circulator sends data (including error messages) only when the computer sends a query.

resent by the PC via the interface in case of a power interruption. AUTOSTART is not possible.

• command

• space (

; Hex: 20)

⇔

• parameter (decimal separation with a period)

• end of file (↵; Hex: 0D)

The commands are divided into in and out commands. in commands: retrieve parameters out commands: set parameters

Important times for a command transmission:

be at least 250 ms. The circulator automatically responds to an in command with a data string followed by a LF (Line Feed). The next command should only be sent after 10 ms.

Command to set the working temperature > SETPNT 1< to 55.5 °C out_sp_00 ⇔ 55.5↵

Command to retrieve the working temperature > SETPNT 1< in_sp_00↵

Use working temperature > SETPNT 1<

Use working temperature > SETPNT 2<

Use working temperature > SETPNT 3<

out_mode_05

Stop the unit = R –OFF-.

out_mode_05

Start the unit.

out_sp_01

xxx.xx

Set working temperature. „SETPNT 2“

Set high temperature warning limit „OVERTMP“

Set low temperature warning limit „SUBTMP“

in the internal bath and external system.

out_par_06

xxx

Xp control parameter of the internal controller. 0.1 ... 99.9

out_par_10

xxx

Proportional portion of the cascade controller. 1 ... 99.9

out_par_14

xxx

Minimum internal temperature of the cascade controller.

Band limit (lower) 0 ... 200 °C

12.3. List of commands

out commands: Setting temperature values or parameters.

Command Parameter Response of circulator

out_mode_01 0

out_mode_01 1

out_mode_01 2

out_mode_04 0 Temperature control of internal bath.

out_mode_04 1 External control with Pt100 sensor.

out_mode_08 0 Set the control dynamics - aperiodic

out_mode_08 1 Set the control dynamics - standard

out_sp_00 xxx.xx Set working temperature. „SETPNT 1“

out_sp_02 xxx.xx Set working temperature. „SETPNT 3“

out_sp_03 xxx.xx

out_sp_04 xxx.xx

out_sp_07 x Set the pump pressure stage. (1 ... 4)

out_par_04 x.x CoSpeed 0 ... 5.0 Band limit during external control.

Setting the maximum difference between the temperatures

out_par_07 xxx Tn control parameter of the internal controller. 3 ... 9999

out_par_08 xxx Tv control parameter of the internal controller. 0 ... 999

out_par_09 xxx Xp control parameter of the cascade controller. 0.1 ... 99.9

out_par_11 xxx Tn control parameter of the cascade controller. 3 ... 9999

out_par_12 xxx Tv control parameter of the cascade controller. 0 ... 999

out_par_13 xxx Maximum internal temperature of the cascade controller.

out_par_15 xxx

out_par_16 xxx

Band limit (upper) 0 ... 200 °C

Remote control

Status message, error message (see page 57)

in_pv_03

none

Temperature value registered by the safety sensor.

in_sp_00

none

Working temperature „SETPNT 1“

High temperature warning limit „OVERTEMP“

Low temperature warning limit „SUBTEMP“

in_sp_07

none

Pump pressure stage

in_par_01

none

Te - Time constant of the external bath.

in_par_02

none

Si - Internal slope

in_par_03

none

Ti - Time constant of the internal bath.

temperatures in the internal bath and external system).

Ratio of max. cooling capacity versus max. heating capacity

in_par_06

none

Xp control parameter of the internal controller.

in_par_08

none

Tv control parameter of the internal controller.

in_par_09

none

Xp control parameter of the cascade controller.

in_par_10

none

Proportional portion of the cascade controller.

in_par_11

none

Tn control parameter of the cascade controller.

in_par_12

none

Tv control parameter of the cascade controller.

controller.

in_par_15

none

Band limit (upper)

in_par_16

none

Band limit (lower)

in commands: Asking for parameters or temperature values to be displayed.

Command Parameter Response of circulator

version none Number of software version (V X.xx)

status none

in_pv_00 none Actual bath temperature.

in_pv_01 none Heating power being used (%).

in_pv_02 none Temperature value registered by the external Pt100 sensor.

in_pv_04 none

in_sp_01 none Working temperature „SETPNT 2“

in_sp_02 none Working temperature „SETPNT 3“

in_sp_03 none

in_sp_04 none

in_par_04 none CoSpeed - Band limit (max. difference between the

in_par_05 none Factor pk/ph0:

Setpoint temperature of the excess temperature protection

in_par_07 none Tn control parameter of the internal controller.

in_par_13 none Adjusted maximum internal temperature of the cascade

in_par_14 none Adjusted minimum internal temperature of the cascade

controller.

Command Parameter Response of circulator

through an external programmer

1 = Temperature control with external Pt100 sensor.

1 = Start

WARNING

-05 WORKING SENSOR ALARM

in_mode_01 none Selected setpoint:

0 = SETPNT 1

1 = SETPNT 2

2 = SETPNT 3

3 = Last setpoint setting was carried out

in_mode_04 none

in_mode_05 none

in_mode_08 none

12.4. Status messages

Status messages

00 MANUAL STOP

01 MANUAL START

Internal/external temperature control:

0 = Temperature control with internal sensor.

Circulator in Stop/Start condition:

0 = Stop

Adjusted control dynamics

0 = aperiodic

1 = standard

Description

Circulator in „OFF“ state.

Circulator in keypad control mode.

02 REMOTE STOP

03 REMOTE START

12.5. Error messages

Error messages

-01 LOW LEVEL ALARM

-02 REFRIGERATOR ALARM

-03 EXCESS TEMPERATURE

-04 LOW TEMPERATURE

Circulator in „r OFF“ state.

Circulator in remote control mode.

Description

Low liquid level alarm.

Control cable of the refrigerated circulator or MVS solenoid valve controller short-circuited or interrupted.

High temperature warning.

Low temperature warning.

Working temperature sensor short-circuited or interrupted.

Remote control

-06 SENSOR DIFFERENCE ALARM

REFRIGERATOR

STAGE 1 DOES NOT WORK

Error messages

-07 I2C-BUS ERROR

-08 INVALID COMMAND

-09 COMMAND NOT ALLOWED IN CURRENT OPERATING MODE

-10 VALUE TOO SMALL

-11 VALUE TOO LARGE

-12 TEMPERATURE MEASUREMENT ALARM

-13 WARNING : VALUE EXCEEDS TEMPERATURE LIMITS

-14 EXCESS TEMPERATURE PROTECTOR ALARM

-15 EXTERNAL SENSOR ALARM

Description

Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 35 K.

Internal error when reading or writing the I2C bus.

Invalid command.

Invalid command in current operating mode.

Entered value too small.

Entered value too large.

Error in A/D converter.

Value lies outside the adjusted range for the high and low temperature warning limits. But value is stored.

Excess temperature protector alarm

External control selected, but external Pt100 sensor not connected.

-20 WARNING: CLEAN CONDENSOR OR CHECK COOLING WATER CIRCUIT OF

-21 WARNING: COMPRESSOR

-22 WARNING: COMPRESSOR STAGE 2 DOES NOT WORK

-23 WARNING: HIGH TEMPERATURE ON COMPRESSOR STAGE 1

-24 WARNING: HIGH TEMPERATURE ON COMPRESSOR STAGE 2

-25 REFRIGERATOR WARNING

-30 CONFIGURATION ERROR: CONFIRM BY PRESSING <OK> ON CIRCULATOR

-33 SAFETY SENSOR ALARM

Cooling of the condenser is affected. Clean air-cooled condenser. Check the flow rate and cooling water temperature on watercooled condenser.

Compressor stage 1 does not work.

Compressor stage 2 does not work.

Excess temperature on compressor stage 1.

Excess temperature on compressor stage 2.

Error in the cooling machine.

The configuration of the circulator does not conform to its present use. Press OK to automatically perform a single modification of the configuration.

Excess temperature sensor short-circuited or interrupted.

-40 NIVEAU LEVEL WARNUNG

Low liquid level warning in the internal reservoir.

The program asks for the port used (COM1, ......) and the baud

settings are made.

13. JULABO Service – Online remote diagnosis

JULABO circulators of the HighTech series are equipped with a black box. This box is implemented in the controller and records all significant data for the last 30 minutes. In case of a failure, this data can be read out from the unit by using special software. This software is available as a free download from

• Installation is easy and is performed step by step. Please observe the instructions.

• Data read-out is possible in the conditions “OFF”, “R OFF” or “ALARM”.

• Connect the circulator to the computer using an interface cable.

• Start the EasyBlackBox program.

rate of the unit. You do not have this information on hand? Simply try it out! The program continues to send the request until the correct

www.julabo.com \ EasyBlackBox.

• Data is read out and shown on the monitor divided in the sections >Einstellungen/Settings<, >Alarmspeicher/Alarms stored<, >Blackbox<

 see example

• After pressing >Speichern/Save< a text file is compiled. The program proposes a filename >C:\model description and barcode no.<. Modifications are possible.

• E-mail this file to ServiceUSA@Julabo.com, JULABO's service department. JULABO is thus able to provide rapid support.

Cleaning the unit

Caution:

personnel only.

Bath tanks made of Plexiglas® and Makrolon® are used when processes within the

Caution:

dissolve the adhesive. Bath tanks made of Plexiglas® and Makrolon® will leak.

• Bath tanks have to be wet-cleaned – never rub dry! Cloths and sponges

14. Cleaning the unit

• Always turn off the unit and disconnect the mains cable from the power source

before cleaning the unit.

• Prevent humidity from entering into the circulator.

• Electrical connections and any other work must be performed by qualified

Cleaning:

For cleaning the bath tank and the immersed parts of the circulator, use low surface tension water (e.g., soap suds). Clean the outside of the unit using a wet cloth and low surface tension water.

The circulator is designed for continuous operation under normal conditions. Periodic maintenance is not required.

The tank should be filled only with a bath fluid recommended by JULABO. To avoid contamination, it is essential to change the bath fluid from time to time.

14.1. Cleaning of bath tanks made of Plexiglas® and Makrolon®

samples have to be visually observed. The transparency of the bath tanks must not be ruined when cleaning them.

Unsuitable cleaning products for bath tanks made of Plexiglas® and Makrolon®. These baths tanks are not resistant to solvents and pure alcohol.

Incorrect cleaning products cause opacity of the tank’s surface, cause stress cracks or

used for cleaning must not be dirty (abrasive particles, dust).

• Use a dampened microfiber cloth for a good, streak-free cleaning.

• For cleaning use only warm water with a few drops of detergent and a soft

cloth.

• In case of heavy, especially greasy soiling benzene-free clean petrol (benzine, light petrol) may be used.

Other cleaning products

Never use solvents as:

Never use:

Alcohol up to 5% alcohol (1

Acetone

Leachate

Abrasive products

JULABO reserves the right to carry out technical modifications with repairs for providing improved performance of a unit.

Petroleum ether (1 Javelle water

Ammonia solution Soap water Soda-water

- Observe the safety data sheet

- Maximum water temperature 60 ° C for Plexiglas®

Carbon Tetrachloride Methyl Ethyl Keton Paint thinner as well as Petroleum Spirit

Degreasing sharp cleaning agents Solvents Spray cleaner for glass Windows Floor cloth

Brushes

15. Repairing the unit

Repairs

Before asking for a service technician or returning a JULABO instrument for repair, please contact an authorized JULABO service station.

When returning the unit:

• Clean the unit in order to avoid any harm to the service personnel.

• Attach a short fault description.

• During transport the unit has to stand upright. Mark the packing correspondingly.

• When returning a unit, take care of careful and adequate packing.

• JULABO is not responsible for damages that might occur from insufficient

packing.

WARRANTY PROVISIONS

16. WARRANTY PROVISIONS

The following Warranty Provisions shall apply to products sold in North America by Julabo (“Seller”) to the entity shown as buyer (“Buyer”) on Seller’s invoice.

1. Initial Warranty. Upon Seller’s receipt of payment in full for the products and subject to Buyer’s compliance with the terms of sale and any other agreement with Seller relating to the products, Seller warrants to the Buyer that the products manufactured by the Seller are free from defects in material and workmanship for a period not to exceed two (2) years or ten thousand (10,000) hours of operation, whichever comes first, from the date the product is shipped by Seller to Buyer (the “Initial Warranty”).

2. EXCLUSION OF ALL OTHER EXPRESS WARRANTIES; EXCLUSION OF ALL IMPLIED

WARRANTIES. OTHER THAN THE INITIAL WARRANTY, NO OTHER EXPRESS WARRANTIES ARE MADE. ALL IMPLIED WARRANTIES OF EVERY TYPE AND KIND, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE, ARE EXCLUDED IN ALL RESPECTS AND FOR ALL PURPOSES. SELLER DISCLAIMS AND MAKES NO IMPLIED WARRANTIES WHATSOEVER.

3. Exclusions. The Initial Warranty does not include damage to the product resulting from accident, misuse, improper installation or operation, unauthorized or improper repair, replacement or alteration (including but not limited to repairs, replacements, or alterations made or performed by persons other than Seller’s employees or authorized representatives), failure to provide or use of improper maintenance, unreasonable use or abuse of the product, or failure to follow written installation or operating instructions. Buyer must return the product’s record of purchase to the Seller or one of Seller’s authorized representatives within thirty (30) days of the date the product is shipped by Seller to Buyer in order to make a claim under the Initial Warranty. Notwithstanding anything contained herein to the contrary, all glassware, including but not limited to reference thermometers, are expressly excluded from the Initial Warranty.

4. Buyer’s sole remedies; Limitations on Seller’s Liability. Buyer’s sole and exclusive remedy under the Initial Warranty is strictly limited, in Seller’s sole discretion, to either: (i) repairing defective parts; or (ii) replacing defective parts. In either case, the warranty period for the product receiving a repaired or replaced part pursuant to the terms of the Initial Warranty shall not be extended. All repairs or replacements performed by Seller pursuant to these Warranty Provisions shall be performed at Seller’s facility in Allentown, Pennsylvania, U.S.A. or at the facility of an authorized representative of Seller, which location shall be determined by Seller in its sole discretion; provided, however, that Seller may, in its sole discretion perform such repairs or replacements at Buyer’s facility in which case Buyer shall pay Seller’s travel, living and related expenses incurred by Seller in performing the repairs or replacements at Buyer’s facility. As a condition precedent to Seller’s obligation to repair or replace a product part under the Initial Warranty, Buyer shall (i) promptly notify Seller in writing of any such defect; (ii) shall have returned the product’s record of purchase to Seller or to one of Seller’s authorized representatives within thirty (30) days of the date the product is delivered to Buyer; and (iii) assist Seller in all respects in its attempts to determine the legitimacy and basis of any claims made by or on behalf of Buyer including but not limited to providing Seller with access to the product to check operating conditions. If Buyer does not provide such written notice to Seller within the Initial Warranty period or fails to return the product’s record of purchase as set forth above, Seller shall have no further liability or obligation to Buyer therefore. In no event shall Seller’s liability under the Initial Warranty exceed the original purchase price of the product which is the subject of the alleged defect.

5. THE REMEDIES PROVIDED IN THE INITIAL WARRANTY ARE THE SOLE AND EXCLUSIVE REMEDIES AVAILABLE TO THE BUYER. NOTWITHSTANDING ANYTHING TO THE CONTRARY CONTAINED HEREIN, AND EVEN IF THE SOLE AND EXCLUSIVE REMEDIES FAIL OF THEIR ESSENTIAL PURPOSE FOR ANY REASON WHATSOEVER, IN NO EVENT SHALL SELLER BE LIABLE FOR BUYER’S MANUFACTURING COSTS, LOST PROFITS, GOODWILL, OR ANY OTHER SPECIAL, INDIRECT, PUNITIVE,

INCIDENTAL OR CONSEQUENTIAL DAMAGES TO BUYER OR ANY THIRD PARTY AND ALL SUCH DAMAGES ARE HEREBY DISCLAIMED.

6. Assignment. Buyer shall not assign any of its rights or obligations hereunder without the prior written approval of Seller; provided, however, that if Buyer is a distributor of Seller, the rights and obligations of Buyer under these Warranty Provisions shall inure to the benefit of and be binding upon Buyer’s customers who provide the product’s proof of purchase to Seller pursuant to the terms set forth herein. Seller may assign any or all of its rights or obligations hereunder without Buyer’s prior consent.

7. Governing Law. The Warranty Provisions and all questions relating to their validity, interpretation, performance, and enforcement shall be construed in accordance with, and shall be governed by, the substantive laws of the Commonwealth of Pennsylvania without regard to its principles of conflicts of law.

8. Waiver. Any failure of the part of Seller to insist on strict compliance with the Warranty Provisions shall no way constitute a waiver of such right. No claim or rights arising out of a breach of the Warranty Provisions by Buyer may be discharged in whole or in part by a waiver of the claim or right, unless the waiver is in writing signed by an authorized representative of Seller. Seller’s waiver or acceptance of any breach by Buyer of any provisions of the Warranty Provisions shall not constitute a waiver of or an excuse for nonperformance as to any other provision of the Warranty Provisions nor as to any prior or subsequent breach of the same provision.

9. Freight. Buyer will arrange and pay for shipping and handling charges for the unit to be returned to the Seller.Seller will arrange and pay for shipping and handling for the return of the unit to the Buyer.

Julabo ME-16G, ME-31A Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operating manual

1. Intended use

1.1. Description

Operator responsibility – Safety recommendations

2.1. Disposal

2.2. Technical specifications

Operating instructions

3. Safety notes for the user

3.1. Explanation of safety notes

3.2. Explanation of other notes

3.3. Safety recommendations

4. Operating controls and functional elements

4.1. Circulator

5. Preparations

5.1. Installation

5.2. Bath fluids

5.3. Filling / draining

5.4. Countercooling

Operating procedures

6.1. Power connection

6.2. Switching on / Start - Stop

6.2.1. Switching on the circulator

7. Setting of temperatures

7.2. Direct setting of temperatures

8. Safety installations, warning functions

8.1. Excess temperature protection

8.1.1. Early warning system, low level protection

8.2. Switch-over from warning to shutdown function

8.3. Over and Sub temperature warning function

9. Menu functions

9.1. MENU PROGRAM – START

9.2. MENU PROGRAM – creation, administration

9.3. MENU PUMP – Setting of pump pressure

9.4. MENU CONFIG – Configuration of unit

9.4.1. REMOTE

9.4.2. AUTOSTART

9.4.3. OFF-MODE

9.4.4. Setting of clock and date

9.4.5. RESET – Factory settings

9.5. MENU CONTROL – Control characteristics and parameters

9.5.1. CONTROL – Control INTERNAL / EXTERNAL

9.5.2. Dynamic internal

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

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

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY

9.7. MENU ATC - Absolut Temperature Calibration

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL

9.7.2. ATC STATUS - YES / NO

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

9.7.4. Example: 3-point calibration for internal control

9.8. MENU LIMITS

9.8.1. Limits for internal control

9.8.2. Limits for external control

Troubleshooting guide / error messages

Electrical connections

12. Remote control

12.1. Setup for remote control

12.2. Communication with a PC or a superordinated data system

12.3. List of commands

Status messages

Error messages

13. JULABO Service – Online remote diagnosis

Cleaning the unit

14.1. Cleaning of bath tanks made of Plexiglas® and Makrolon®

15. Repairing the unit

WARRANTY PROVISIONS