Julabo 9032706.33.CSA/UL, 9032706.02, 9032713.N1.02, 9032713.N1.33, MS-1000FW User manual

Bridge-mounted circulators, circulators, refrigerated circulators

Original operating manual

1.950.1700.en.V05 05/2022

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Contents

1

Foreword ............................................................................................. 8

2 About this manual .............................................................................. 9

2.1 Original JULABO spare parts .......................................................... 9

2.2 Accessories ..................................................................................... 9

2.3 Warnings ....................................................................................... 10

2.4 Symbols used ................................................................................ 11

3 Intended use ..................................................................................... 11

4 Safety ................................................................................................. 12

4.1 General Safety Instructions for the operating company ................ 12

4.2 General Safety Instructions for the operator ................................. 12

4.3 General Safety instructions for device operation .......................... 13

4.4 Safety symbols .............................................................................. 13

4.5 Safety function ............................................................................... 14

5 Product description.......................................................................... 15

5.1 Product overview ........................................................................... 15

5.2 Function description ...................................................................... 15

5.3 Operating and functional elements ............................................... 16

5.4 Interfaces ....................................................................................... 17

5.4.1 Connection of Pt100 temperature sensor ................................ 17

5.4.2 Stakei output ............................................................................ 18

5.4.3 RS232/RS485 interface ........................................................... 19

5.4.4 Ethernet interface ..................................................................... 20

5.5 Analog interfaces (accessories) .................................................... 20

5.5.1 Alarm output ............................................................................. 20

5.5.2 REG/EPROG socket ................................................................ 21

5.5.3 Standby input ........................................................................... 22

5.6 Operating interface ........................................................................ 23

5.6.1 Softkeys and status icons ........................................................ 24

5.6.2 Explanation of abbreviated terms............................................. 24

5.7 Alarm messages ............................................................................ 25

5.8 Operator Messages ....................................................................... 26

5.9 Main menu ..................................................................................... 26

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5.9.1 Adjust safety menu ................................................................... 27

5.9.2 Menu Determine thermodynamics ........................................... 27

5.9.3 Menu Connect unit ................................................................... 27

5.9.4 Menu Use programmer ............................................................ 28

5.9.5 Record data menu .................................................................... 28

5.9.6 Install unit menu ....................................................................... 28

5.9.7 Settings menu .......................................................................... 28

5.9.8 Unit account menu ................................................................... 29

5.9.9 Service menu ........................................................................... 29

5.9.10 Menu About .............................................................................. 29

5.10 Technical data ............................................................................... 30

5.10.1 Material of parts that come into contact with the medium ........ 32

5.10.2 Technical data for refrigerated circulators ................................ 33

5.10.3 Bath fluids ................................................................................. 41

5.10.4 Hoses ....................................................................................... 42

6 Transport and installation ............................................................... 43

6.1 Transporting the device ................................................................. 43

6.2 Install the device at the operating location .................................... 44

7 Initial operation ................................................................................. 45

7.1 Mounting the circulator .................................................................. 45

7.1.1 Mount bridge mounted circulator .............................................. 45

7.1.2 Mount heating or refrigerated circulator ................................... 46

7.2 Connect the device to the power supply ....................................... 47

7.2.1 Connect bridge mounted or heating circulator ......................... 47

7.2.2 Connect refrigerated circulator ................................................. 48

7.3 Connecting an external system ..................................................... 49

7.3.1 Connect an external system with screw connections .............. 50

7.3.2 Connect an external system with barbed fittings...................... 51

7.4 Switch on the device and set the language ................................... 52

7.5 Set high temperature safety function ............................................. 53

7.6 Fill device ....................................................................................... 54

7.7 Set up power supply for the refrigerated circulator ....................... 54

7.8 Set chiller mode ............................................................................. 55

7.9 Set limit values .............................................................................. 55

7.9.1 Set temperature warning limits ................................................. 55

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7.9.2 Adjusting setpoint limits ............................................................ 56

7.9.3 Adjusting actual value limits ..................................................... 56

7.9.4 Band limit for external control ................................................... 56

7.9.5 Setting band limit ...................................................................... 57

7.10 Connect external temperature sensor ........................................... 58

8 Operation ........................................................................................... 59

8.1 Switch on the unit .......................................................................... 59

8.2 Switch off the unit .......................................................................... 59

8.3 Start temperature control application ............................................ 59

8.4 Basic settings ................................................................................ 60

8.4.1 Set language ............................................................................ 60

8.4.2 Change language to English .................................................... 60

8.4.3 Set date and time ..................................................................... 60

8.4.4 Activate autostart function ........................................................ 61

8.4.5 Set physical units ..................................................................... 61

8.5 Unit account .................................................................................. 61

8.5.1 Change password .................................................................... 62

8.5.2 Defining user-dependent settings ............................................ 62

8.5.3 Defining user-independent presets .......................................... 63

8.5.4 Log in user ................................................................................ 63

8.5.5 Log out user ............................................................................. 63

8.5.6 Lock the device ........................................................................ 64

8.5.7 Set inactivity timer .................................................................... 64

8.5.8 Reset settings........................................................................... 65

8.6 Record data ................................................................................... 65

8.6.1 Record measurement data ....................................................... 65

8.6.2 Reading out blackbox data ....................................................... 66

8.6.3 Displaying alarm memory ......................................................... 66

8.7 Thermodynamics ........................................................................... 67

8.7.1 Control parameter .................................................................... 67

8.7.2 Optimizing temperature curves ................................................ 68

8.7.3 Adjust controller ....................................................................... 69

8.7.4 Limit cooling capacity and heating capacity ............................. 69

8.7.5 Adjust pump ............................................................................. 69

8.8 Remote control device ................................................................... 70

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8.8.1 Remote control device using USB interface ............................. 70

8.8.2 Set RS232 interface parameters .............................................. 70

8.8.3 Remote control device using RS232 interface ......................... 71

8.8.4 Remote control device using RS485 interface ......................... 71

8.8.5 Set EPROG input ..................................................................... 72

8.8.6 Set external setpoint values ..................................................... 73

8.8.7 Set up actuating variable .......................................................... 73

8.8.8 Request device status .............................................................. 74

8.9 Watchdog function ......................................................................... 74

8.10 Working with the programmer ....................................................... 75

8.10.1 Setting the timer ....................................................................... 75

8.10.2 Creating and editing a temperature control profile ................... 76

8.10.3 Import temperature control profile ............................................ 76

8.10.4 Export temperature control profile ............................................ 77

8.10.5 Delete temperature control profile ............................................ 77

8.10.6 Profile series setup ................................................................... 78

8.10.7 Activate programmer ................................................................ 78

8.11 Configure signal outputs ................................................................ 79

8.11.1 Set up Stakei outlet .................................................................. 79

8.11.2 Configure signal outputs of the REG/EPROG plug .................. 79

8.11.3 Configure alarm outputs ........................................................... 80

8.12 Activating stand-by input ............................................................... 80

8.13 Adjusting the temperature sensor (ATC) ....................................... 81

8.13.1 Adjust internal temperature sensor .......................................... 81

8.13.2 Adjust the internal temperature sensor -

multi-point calibration ............................................................... 82

8.13.3 Adjust external temperature sensor ......................................... 82

8.14 Device Reset ................................................................................. 83

9 Maintenance ...................................................................................... 84

9.1 Check safety symbols.................................................................... 84

9.2 Check the functionality of high temperature cut-off ....................... 84

9.3 Test the low liquid level safety function ......................................... 84

9.4 Replace detachable power cord .................................................... 85

9.5 Check and replace fuse ................................................................. 85

9.6 Emptying ........................................................................................ 86

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9.7 Clean device .................................................................................. 86

9.8 Device storage .............................................................................. 87

9.9 Technical Service .......................................................................... 87

9.10 Warranty ........................................................................................ 88

10 Disposal ............................................................................................. 88

10.1 Device disposal ............................................................................. 88

11 EC Declaration of Conformity ......................................................... 89

12 UK Declaration of Conformity ......................................................... 90

13 Appendix ........................................................................................... 91

13.1 Interface commands ...................................................................... 91

13.1.1 IN commands ........................................................................... 92

13.1.2 OUT commands ....................................................................... 95

13.1.3 Status commands .................................................................... 98

13.1.4 Status messages ...................................................................... 98

13.2 Alarms and Warnings .................................................................... 99

13.3 Modbus TCP/IP register .............................................................. 103

13.3.1 Data type ................................................................................ 103

13.3.2 Feedback on invalid entries ................................................... 103

13.3.3 Function codes ....................................................................... 104

13.3.4 Holding registers .................................................................... 104

13.3.5 Input register .......................................................................... 107

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Foreword

1 Foreword

Congratulations!

You have made an excellent choice.
JULABO would like to thank you for the trust you have placed in our company

and products.
This operating manual will help you become acquainted with the use of our

units. Read the operating manual carefully. Keep the operating manual handy at
all times.

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2.4 Symbols used

Various symbols are used throughout this manual to aid reading
comprehension. This list describes the symbols used.

 Tools needed for the following approach
 Prerequisite to be met for the following procedure

1. Numbered action steps
 Interim result for individual action steps
 Additional note for individual action steps
 Final result of a procedure
<> Terms in angle brackets denote control menu
[] Terms in square brackets denote keys, softkeys and buttons

3 Intended use

This section defines the purpose of the unit so that the operator can operate the
unit safely and avoid misuse.

JULABO circulators are laboratory devices that are designed for temperature
control applications with liquid media in a bath tank or with a cooling machine.
An external loop circuit can be connected to the pump connectors so that the
temperature of the bath media can be kept constant.

Only use the device if it is in technically perfect condition and only use it in
accordance with its intended use. Be aware of safety issues or hazards and
comply with the operating manual! In particular, always immediately rectify
faults that could impair safety!

The circulators are not suitable for direct temperature control application of
food, other consumables or pharmaceutical or other medical products.

The devices are not suitable for use in an explosive environment.
The devices are not intended for use in living areas. They may cause interference

with radio reception.

Intended use

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Safety

4 Safety

4.1 General Safety Instructions for the operating company

This section outlines the General Safety Instructions that must be observed by
the operator to ensure safe operation.

• The operator is responsible for the qualifications of its operating personnel.

• The operator must ensure that the operating personnel has been instructed
in use of the device.

• The device operators must receive regular training about the dangers
involved in their work and measures to prevent such dangers.

• The operator must ensure that persons entrusted with the operation,
installation and maintenance have read and understood the operating
manual.

• The device may only be configured, installed, maintained and repaired by
trained personnel with appropriate qualifications.

• If hazardous substances or substances that may become hazardous are
used, the device may only be used by personnel who are qualified to handle
these substances and the device.

• The operator must ensure that the device is checked for safety and
functionality at regular and usage-related intervals.

• The operator must ensure that the mains supply has a low impedance to
prevent influencing other devices powered by the same supply.

4.2 General Safety Instructions for the operator

This section outlines the General Safety Instructions that must be observed by
the user to ensure safe operation.

• Read the operating manual before initial operation

• The device may only be connected to mains power outlets with a protective
earth (PE)

• The mains plug is a safe insulator of the power supply grid and must be
freely accessible at all times

• Do not start the device if it has a damaged power cable

• Do not operated damaged devices

• Only mount the circulator in suitable bath tanks or refrigeration units

• When connecting to external devices, observe the respective assembly
instructions, connection assignment of the plugs and technical data for the
products

• Observe the safety symbols on the device.

• Do not remove safety symbols

• Have all service and repair work carried out by authorized specialists only

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Safety

4.5 Safety function

Technical protective devices provide for safe operation. If a safety function is
triggered, the operator is alerted with a message on the display and an acoustic
signal.

Adjustable high temperature cut-off

The high temperature cut-off prevents overheating of the heater.

• If the temperature of the working temperature reaches the set protective
temperature, an error message appears on the display. The pump and
heater are switched off. A restart is required.

Overheating protection

The overheating protection prevents overheating of the heater.

• The protective mechanism is triggered when the device recognizes a
temperature difference of more than 20 K between the working
temperature sensor and the safety temperature sensor. Am error message
appears on the display. A restart is required.

Low liquid level protection

A level switch recognizes when the bath fluid fill level in the bath tank is too
low. The device has a two-stage warming system to prevent overheating of the
heater or dry running of the pump.

• The low liquid level warning is triggered when the liquid level in the bath
tank is about half the full level. A warning message appears on the display.
The bath fluid should be topped up.

• The low liquid level alarm is triggered when the float reaches its lower limit
stop. The device switches off the pump and heater. A continuous signal
tone sounds. A warning message appears on the display. A restart is
required.

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5 Product description

5.1 Product overview

Circulators can be combined with various baths and cooling machines.

Bridge mounted
circulator

Heating circulator Refrigerated circulator

Product description

MAGIO MS-Z: Circulator with
extendable telescopic bridge
for mounting on open bath
tanks

Circulator with closed
stainless steel bath tank.
Example: MAGIO MS-BC4 for
temperature control
applications in the bath or
externally

5.2 Function description

This section describes the function of the device.

The circulators are used for internal and external temperature control, and
depending on the device combination and accessories used can work in a
temperature range between -50 °C and +300 °C.

When mounted on a bath tank the circulator is a heating circulator, when
combined with a cooling machine it is a refrigerated circulator.

Circulator with cooling
machine.
Example: MAGIO MS-600F for
standard temperature
applications

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Product description

5.4.4 Ethernet interface

The device can be connected to a network or directly connected to a PC using
the Ethernet interface.

5.5 Analog interfaces (accessories)

The module with analogue interfaces can be ordered as an accessory.

Slot with analogue connections

[1] Alarm output
[2] REG/EPROG plug
[3] Standby input

5.5.1 Alarm output

The alarm output is a potential-free changeover contact, through which an
externally connected circuit can be switched.

Alarm output diagram

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Product description

5.5.3 Standby input

With the standby socket the device can be put in standby mode using an
external signal transmitter.

Standby socket diagram

[1] External contact, e.g. switch
[2] Pin 3
[3] Pin 1
[4] Pin 2

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5.6 Operating interface

The device is operated by touchscreen. When it is switched on, the display
shows the home screen. Sideways swiping or pressing the side arrows allows
selection between three different home screen presentations.

Home screen

[1] Softkey [Settings] accesses the <Main menu>
[2] Internal/external control display
[3] Display of current internal/external temperature, display off in

standby mode

[4] Temperature sequence setpoint temperature/current temperature

internal and external
[5] Status USB
[6] Status Ethernet
[7] User logged in
[8] Operation locked
[9] Quick access programmer (with active programmer)
[10] Status display programmer (with active programmer)
[11] Display of current performance parameters
[12] Softkey [Setpoint adjustment], display of specified setpoint temperature
[13] Date/time
[14] Fluid level display

Product description

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Product description

Warning:

In the event of a warning, the temperature control application is not interrupted.
A warning message with an orange background is displayed. A signal tone is
emitted at intervals. The acoustic signal can be deactivated by pressing the
central controller. If the underlying cause of the warning is remedied, the signal
tone ceases. Depending on the cause, warnings may cease automatically after a
period of time, e.g. when the device cools down.

5.8 Operator Messages

Operator messages are informal messages that inform the operator about status
changes of the device.

Display of operator message

Operator messages are shown on a blue background. They provide information
about the operating states of individual units on the Home screen. Status
messages from a connected cooling machine are also displayed as operator
messages.

5.9 Main menu

With the softkey [Settings] on the home screen, you can call up the Main
menu. The Main menu is divided into menu options, which respectively contain
more submenus or in which settings can be specified. With the softkey [Close]
you can always get back to the home screen.

The <Main menu> is divided into the following menu options:

• Adjust safety

• Determine thermodynamics

• Connect unit

• Use programmer

• Record data

• Install unit

• Settings

• Unit account

• Service

• About

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5.9.1 Adjust safety menu

In the menu <Adjust safety> limit values are set to define a range for safe
process flow.

• Enabling/disabling autostart

• Setting pump mode

• Setpoint limits: Setting of the upper and lower limits for temperature

setpoint as well as the maximum pump performance

• Temperature limits: High temperature cut-off. Setting alarm and warning

limits, band limits and internal temperature limits in the case of external

control

5.9.2 Menu Determine thermodynamics

In the menu <Determine thermodynamics> the control parameters for a
temperature sequence are defined and the pump performance set.

Adjust controller:

• Setting for the control parameters for internal or external control

• Definition of the control behavior
Adjust pump:

• Setting pump output
Adjust limits:

• Specification of the limit values for heating capacity and cooling capacity

5.9.3 Menu Connect unit

The device can be connected to a PC and remotely controlled via the USB
interface, the RS232/RS485 interface or via Ethernet. In addition to this, analog
interfaces of external programmers can also be connected. In the menu
<Connect unit> parameters for remote control mode can be set.

• Setting up remote control

• Interfaces

• Watchdog function

• Start up behavior

• External setpoint

• Actuating variable

Product description

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Product description

5.9.4 Menu Use programmer

The menu <Use programmer> is used to program temperature curves, which
can be called up according to definable rules.

• Activate programmer: Set the start time, setpoint, final state, duration and
number of runs of a temperature control application. Programming profile
series

• Manage profile: Creating, managing, importing and exporting profiles.
Graphical display of individual profile courses

5.9.5 Record data menu

The device can record data on an external storage medium. The menu <Record
data> defines the conditions for this and starts recording. The recorded data

can be used for subsequent evaluation.

• Recording measurement data

• Reading out blackbox data

Reading out the alarm memory

5.9.6 Install unit menu

In the menu <Install unit> several basic settings are specified. Depending on
the device constellation, not all menu functions are available.

• Adjust external temperature sensor

• Import and export device settings

• Reset unit

• Set power supply

• Set chiller mode

5.9.7 Settings menu

In the menu <Settings> the fundamental device settings are specified.

• Setting language

• Setting date and time

• Setting physical units

• Configuration of Home screen

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5.9.8 Unit account menu

Access rights are managed in the <Unit account> menu.

• Log in and out of the device

• Lock the device

• Set inactivity timer

• Access rights for basic and advanced users

5.9.9 Service menu

The menu <Service> is reserved for JULABO service technicians and password
protected.

5.9.10 Menu About

The menu <About> provides information about the installed software status.

• Display of device identity with voltage variant and firmware status

• Display of installed open source software with licenses

Product description

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Product description

5.10 Technical data

Performance specifications measured in accordance with DIN12876. Cooling
capacities up to 20°C measured with ethanol; over 20°C with thermal oil unless
specified otherwise. Performance specifications apply at an ambient
temperature of 20°C. Performance values may differ with other bath fluids.

Grouping of the device acc. to CISPR 11:

• The device is an ISM device of group 1, which uses high frequency for
internal purposes

• Class A: Use in an industrial electromagnetic environment

In accordance with IEC 61010-1, the device is designed for safe operation under
the following ambient conditions:

• Indoor use

• Altitude up to 2000 m above sea level

• Ambient temperature +5 … +40°C

• Maximum relative humidity 80% for temperatures up to 31°C, decreasing
linearly down to 50% relative humidity at 40°C

• Mains voltage fluctuations up to ±10% of the nominal voltage permissible
if not otherwise specified

• Contamination level 2

Protection class according to EN 60 529:

• Protection class IP21

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Product description

5.10.4 Hoses

Hoses for connection of an external system must suit the working temperature
range and the respective temperature control application.

Hoses for every area of application can be found on our website.

Hoses must meet the following requirements:

• Temperature resistance

• Pressure resistance

• Suitable material properties for the bath fluid used

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Transport and installation

6.2 Install the device at the operating location

This section describes how the device is set up at the installation location.

 The device has been transported to the operation location.
 The size and infrastructure of the operation location are suitable for device

operation.

1. If possible, position the device under an extraction system.

 Depending on the bath fluid, gases may be created at high temperatures.
 Recommended minimum distance of 1 m to other devices, to prevent

electromagnetic interference.

2. Place the device on a level, smooth, non-flammable surface.

3. Ensure that the device is securely positioned.

4. For refrigerated circulators: Ensure an open space in front of and behind the
device of at least 20 cm.

 The device is set up at the operation location.

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7 Initial operation

Commissioning is carried out in various steps, depending on how the device is
to be used.

7.1 Mounting the circulator

7.1.1 Mount bridge mounted circulator

With the extendable telescopic bridge, the circulator can be mounted on open
bath tanks with a width of 33 cm to 68 cm.

 Cross-headed screwdriver, size 2

 The circulator is equipped with the telescopic bridge.
 The bath is empty.

Initial operation

1. Dismount the two screws on the sides of the telescopic bridge.

2. Extend the telescopic bridge.

3. Carefully insert the circulator into the bath.

4. Push the telescopic bridge together until the side angle plates rest against

the edge of the bath.

 The thermostat is mounted on the open bath as a bridge mounted

circulator.

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Initial operation

7.1.2 Mount heating or refrigerated circulator

In the case of a heating circulator or a refrigerated circulator, the circulator is
mounted on the closed bath or on cooling machine.

If the circulator is disassembled, e.g. due to a change of device or for service
purposes, it can then be easily reassembled with the connecting box.

 Open-end spanner, size 7 mm

 The thermostat is ready to be mounted on a closed bath or a cooling

machine.

 The bath is empty.

1. Carefully insert the circulator into the bath.

 Align the four threaded sleeves of the bath with the four fastening screws of

the connecting box.

2. Tighten the four fastening screws [arrows in the image right] by hand.

3. Tighten the fastening screws evenly with the open-ended wrench.

4. Check that the circulator is sitting correctly and that the connecting box
gasket is seated gap-free on the surface of the unit.

 The heating circulator or refrigerated circulator is mounted.

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7.2 Connect the device to the power supply

7.2.1 Connect bridge mounted or heating circulator

This section describes how the circulator is connected as a bridge mounted
circulator or heating circulator.

 The circulator is mounted as a bridge mounted or heating circulator.
 The power cable is ready for use.

Initial operation

Front side Back

1. Insert the power cable on the back of the circulator into the mains

connection [1].

2. Connect the circulator to the power supply using the power cable.
 The circulator is connected.

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Initial operation

7.2.2 Connect refrigerated circulator

This section describes how the circulator is connected as a refrigerated
circulator.

 The circulator is mounted on a refrigeration unit.
 The connection cable, mains cable and CAN bus cable are ready for use.

48

Front side Back

1. Connect the connection cable [1] of the circulator with the refrigeration
unit.

2. Connect the CAN plugs of both units with the CAN bus cable [2].

3. Connect the refrigeration unit to mains power [3] using the power cable.

 The refrigerated circulator is connected. Alternatively, the units can be

connected to separate circuits. If necessary, the power supply must be set
up in the unit setting.

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3. Screw the hoses onto the pump connectors by hand.
 Pay attention to the supply and runback position.

4. Screw on the pump connections carefully with a maximum of 3 Nm torque.
 The external system is connected.
 If the external system is disassembled, the pump connections must be

resealed with the sealing plugs so that no bath fluid can splash out during
operation.

7.3.2 Connect an external system with barbed fittings

This section describes how to connect an external, closed system to the device
using barbed fittings.

 Open-end wrench, 17 mm
 Open-end wrench, 19 mm

 Barbed fittings are available for installation of the external system.

Initial operation

1. Disassemble the union nuts on the pump connectors.

2. Remove the sealing plugs.

3. Push one barbed fitting through each of the union nuts.

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Initial operation

4. Mount the barbed fittings with the union nuts on the pump connections.

5. Carefully tighten the union nuts with a maximum of 3 Nm torque.

6. Attach the hoses of the external system on the barbed fittings.

 Pay attention to the supply and runback position.

7. Secure the hose against slippage using tube clamps.

 Check the hoses for secure and leak-proof fit.
 The external system is connected.
 If the external system is disassembled, the pump connections must be

resealed with the sealing plugs so that no bath fluid can splash out during
operation.

7.4 Switch on the device and set the language

The language must be set first, to prepare for important basic settings. When
switching on for the first time, alarm messages may be shown on the display.

 The device is connected and ready for operation.

1. Switch the device on at the mains switch.

 The software boots and starts the device. The display shows the device

name, voltage version and software version.

 Since no temperature liquid has been filled yet, the low level alarm is

displayed.

 Depending on the default setting, the high temperature cut-off alarm is

displayed.

2. Call up the <Main menu>.

3. Call up the submenu <Settings> then menu option <Language>.

 The submenu <Language> lists all the languages installed on the device.

4. Select the desired language.

5. Turn the device off so that the alarm message is reset.

 The language is set.

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7.5 Set high temperature safety function

Before each new temperature application, the temperature must be set for the
tank and internal reservoir high temperature cut-off. Set a value that is at least
25 K below the flash point of the bath fluid being used. The surface temperature
of the bath fluid must not exceed the flash point at any time. An alarm is
triggered when the set value is exceeded.

 Slotted screwdriver, size 3

 The device is connected.
 The language is set.

1. Switch the device on.
 If no temperature liquid has been filled yet, the low liquid level alarm is

displayed.

 Depending on the default setting, the high temperature cut-off alarm is

displayed.

2. Call up the <Main menu>.

3. Call up the submenu <Settings> then menu option

<Customize home screen>.

4. For one of the possible display values, activate [High temperature cut-

off].

5. Call up the Home screen.

6. Swipe sideways to show the Home screen view that displays the high

temperature cut-off value T

Protect.

Initial operation

7. Use the screwdriver to set the high temperature cut-off.
 The display shows the set value for T

Protect

.

8. Set a value that is at least 25 K under the flash point of the bath fluid being

used.

 The set value is immediately active.

9. Turn the device off so that the alarm message is reset.
 The high temperature cut-off is set.

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Initial operation

7.6 Fill device

This section describes how the device should be filled with bath fluid during
initial operation.

Specifications for filling volume can be found in the technical data.

 The drain valve is closed.
 The device is switched off.

1. Remove the bath lid.

2. Half fill the bath with bath fluid.

 The bath fluid expands with increasing temperature and can overflow.
 With decreasing temperature, the low liquid level protection can be

triggered and interrupt the temperature control process.

3. Switch the unit on and start the temperature control application.

4. Watch the level indicator and, if necessary, adjust the level by refilling or
draining.

 Once the working temperature has been reached and the sample inserted,

the level of bath fluid in the bath tank should cover the heating coil of the
heating circulator or the cooling coil of the refrigeration unit.

5. Close the bath opening with the bath lid.

 The device is filled with bath fluid.

7.7 Set up power supply for the refrigerated circulator

For a refrigerated circulator, the power supply is configured at the factory. The
circulator is supplied with power from the refrigeration unit. Alternatively, both
units can be connected to separate circuits with one power cable each. The type
of power supply is set in the operating menu.

 The cooling machine is connected.

1. Switch the device on at the mains switch.

2. Call up the <Main menu>.

3.Call up the submenu <Install unit> then the menu option <Power supply>.3

4. Select the type of power supply: [Supply via chiller] for connection to the
same power grid or [Separate supply] for connection to a different power
grid.

 [Supply via chiller] activates the heating capacity limit of the circulator.

It prevents the device combination from exceeding a defined maximum
current consumption and thus from overloading the power grid.

 The power supply for the refrigerated circulator is set up.

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7.8 Set chiller mode

For a refrigerated circulator, the chiller mode is preset ex works to automatic
operation. Three different chiller modes can be selected in the operating menu:

• Automatic mode: The controller calculates the duration of the heating

process in the event of a setpoint change of more than +5°K. Based on the
calculated heating duration, the control decides whether the refrigeration
unit is to be switched off or not, depending on demand.

• Always on: The refrigeration unit is permanently switched on during

operation.

• Always off: The refrigeration unit remains switched off during operation.

 The device is switched on.
 The cooling machine is connected.

1. Call up the <Main menu>.

2. Call up the submenu <Install unit> then the menu option

<Chiller mode>.

 The menu option can only be called up if the thermostat detects a

connected refrigeration unit.

3. Select the desired chiller mode.
 The chiller mode is set.

7.9 Set limit values

7.9.1 Set temperature warning limits

A warning limit and an alarm limit can be set for low temperature and high
temperature. The warning limit values should be within the alarm limit values. If
the respective temperature limit is exceeded, the device generates an alarm or
warning message.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Adjust safety>.
 Only values that are within the performance values of the device can be

entered.

3. Set the limit value for the [Overtemperature alarm] then confirm your

input with [OK].

4. Set the limit value for the [Overtemperature warning] then confirm

your input with [OK].

5. Set the limit value for the [Subtemperature alarm] then confirm your

input with [OK].

6. Set the limit value for the [Subtemperature warning] then confirm your

input with [OK].

 The temperature limits are set.

Initial operation

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Initial operation

7.9.2 Adjusting setpoint limits

The setpoint limits Setpoint max. and Setpoint min. define the upper and lower
limit of the adjustable setpoint temperature range.

The setpoint limit for the pump defines the upper limit value for pump capacity,
adjustable in the menu <Determine thermodynamics>. The lower limit is
set to 40% ex works.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Adjust safety>.

3. Set the [Setpoint min.], [Setpoint max.] and [Pump max.] then
confirm your input.

 Only values that are within the performance values of the device can be

entered.

 The setpoint limits are set.

7.9.3 Adjusting actual value limits

The actual value limits “internal minimum” and “internal maximum” are
effective in the external control operating mode. They define limits for the
expected temperature in the internal bath. The temperature controller cannot
exceed these limit values. Under certain circumstances, the external setpoint will
not be reached.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Adjust safety>.

3. Set the values for internal minimum and internal maximum.

 The actual value limits are set and immediately active.

7.9.4 Band limit for external control

If an external system is being controlled then there is a temperature difference
both during the heating phase and the cooling phase due to inertia. The curve
illustrates the connection between the internal and external temperature
sequence.

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Schematic temperature sequence internal/external

[1] Temperature sequence internal
[2] Temperature sequence external system
[3] Band limit upper
[4] Band limit lower

In order to gently control the temperature of a sample in an external system, or
to protect a glass reactor from thermal stress, for example, maximum
permissible temperature differences can be specified for the heating phase and
the cooling phase.

7.9.5 Setting band limit

The upper and lower band limit is defined in °K. In the heating phase the set
value will be added to the external actual value. In the cooling phase the set
value will be subtracted from the external actual value. The setting range is
between 1 and 200 °K.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Adjust safety>.

3. Set the upper and lower band limit.
 The band limits are set and immediately active.

Initial operation

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Initial operation

7.10 Connect external temperature sensor

A Pt100 temperature sensor can be attached to the rear of the device.

 The device is switched off.
 A Pt100 temperature sensor with suitable connection is available.

1. Connect the Pt100 to the ext.Pt100 socket on the back of the device.

2. Switch the device on.

3. Call up the submenu <Determine thermodynamics> and the menu
option <Adjust controller>.

4. In the menu option <Control> activate the interface [External control].

5. Call up the menu option <External>.

6. Set the control parameter for external control.

 The external temperature sensor is connected and ready for operation.

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8 Operation

8.1 Switch on the unit

This section describes how to switch on the device.

 The device is connected and ready for operation.

1. Switch the device on at the mains switch.
 The software boots and starts the device. The display shows the device

name, voltage version and software version.

 The device is switched on. It switches to the most recently activated

operating mode, manual operating mode or remote control mode. If the
auto start function is activated, then the device starts directly into the last
setting.

8.2 Switch off the unit

This section describes how to switch off the device.

 The device is switched on.

1. Press the [Stop] softkey to stop an ongoing temperature control

application.

 If a cooling machine is connected, a message appears on the display that

the cooling machine is shutting down.

 Do not switch off the device until the message has disappeared and the

device is in standby mode.

2. Switch the device off at the mains switch.
 The device is switched off.

8.3 Start temperature control application

A temperature application can be started directly on the unit. Other options
include timer-controlled temperature control application with the integrated
programmer and remote control via a connected PC.

 The unit is switched on.

1. From the Home screen, press the [Setpoint adjustment] softkey.

2. Enter the desired setpoint temperature in the input window and confirm

your input.

Operation

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Operation

3. Press the [Start] softkey.

 The unit starts the temperature control application at once. The temperature

control application can be stopped with the [Stop] softkey. The entered
setpoint temperature is saved.

 Observe the following for heating circulators:

For temperature control applications near or below the ambient
temperature: Use a cooling coil or JULABO immersion cooler.

8.4 Basic settings

8.4.1 Set language

The language of the operating interface can be switched to one of the available
languages.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Settings> then menu option <Language>.

 The submenu <Language> lists all the languages installed on the device.

3. Select the desired language.

 The selected language is immediately activated.

8.4.2 Change language to English

A special function makes it easy to change the user interface language to
English at any time.

 The device is switched on.

1. Call up the <Main menu>.

2. Tap the <Main menu> text field on the left menu item for more than 3
seconds.

 The language will be changed to English.

8.4.3 Set date and time

The date and time is preset ex works. This section describes how you can set the
date and time yourself.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Settings> then menu option <Date/time>.

 The submenu shows the currently set date and time as well as selectable

display formats.

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3. Set the date and time with the keypad shown and then confirm your input

with [OK].

4. Select the desired display format.
 The date and time are set.

8.4.4 Activate autostart function

The autostart function makes it possible to start a temperature control
application directly using the mains switch or via an intermediate timer.

The device is configured ex works in such a ways that it switches to a safe
operating status in the event of power failure. The autostart function is
deactivated. The display shows “OFF.” The refrigeration aggregate, heater, and
pump motor are disconnected from the mains voltage.

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Adjust safety> activate the interface [Autostart].
 The autostart function is activated. The next time the device is switched on,

the temperature control application will immediately start with the preset
values. You can also insert and program a timer. In this case the mains
switch of the device must remain on.

8.4.5 Set physical units

The physical units for temperature, pressure and flow can be set in the menu.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Settings>.

3. Set the desired units for temperature, pressure and flow.
 The physical units are set.

8.5 Unit account

In the menu option <Unit account> the access rights for user groups can be
managed.

Basic users and advanced users can log in with this menu option. Logging in
activates the respectively assigned rights.

The administrator manages the access rights of the two user groups and can
change passwords.

Operation

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Operation

8.5.1 Change password

The password ensures that only authorized persons have access to defined
device functions. The administrator password is required to change a password.
Passwords can be created and changed for the following user groups:

• Basic users, factory setting password: 0000

• Extended users, factory setting password: 00000

• Administrators, factory setting password: 000000

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Unit account> call up the menu option <Settings>.

 An input field will open.

3. Enter the administrator password and confirm your input.

 Factory setting for the administrator password: 000000.

4. Select one of the three user groups.

5. Press the [Change password] button.

 An input field will open. The new password may have up to 19 digits.

6. First think of a new password and make a note of it.

 Note: Entering a new password will overwrite the previous password. It can

no longer be restored! This also applies to the password preset ex works.

7. Enter the new password and confirm your input.

8. Repeat the new password and confirm your input.

 The password has been changed and is immediately active. This allows you

to change the password for each user group.

8.5.2 Defining user-dependent settings

The administrator manages the access rights of the user groups. For basic users
and advanced users it is possible to define which main menus they can access
and whether they are authorized to enter the setpoint or start and stop the
device. A change to access rights requires the administrator password.

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Unit account> call up the menu option <Settings>.

 An input field will open.

3. Enter the administrator password and confirm your input.

 Factory setting for the administrator password: 000000.

4. Select a user group.

5. Activate/deactivate the desired access rights and menus.

 The settings for the user group are active immediately.

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8.5.3 Defining user-independent presets

If no user is logged in, user-independent presets are based on operation of the
device. For users who are not logged in, operation of the device may be limited
to certain functions.

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Unit account> call up the menu option <Settings>.
 An input field will open.

3. Enter the administrator password and confirm your input.
 Factory setting for the administrator password: 000000.

4. Select the menu option <Default values>.

5. Activate/deactivate the desired access rights and menus.
 The user-independent preset values are active immediately.

8.5.4 Log in user

Logging in a user activates the access rights assigned to their user group.

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Unit account> press the [Login] button.
 An input field will open.

3. Enter the password for your user group and confirm your input.

 Basic users, factory setting password: 0000.
 Extended users, factory setting password: 00000.
 The display shows the logged in user group. The access rights are active

immediately. If the device is switched off and on again, the last logged in
user group remains active.

8.5.5 Log out user

If an active user is logged out, the user-independent access rights that can be
operated by any person are automatically activated.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Unit account>.

3. Press the [Logout] button.

Operation

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Operation

 You are immediately logged out and the user-independent access rights are

activated.

 The current temperature control application remains active. If the user-

independent access rights do not make it possible to stop or change an
active temperature control application, a message appears indicating that
access is blocked. The administrator or the last user can unlock the device.

8.5.6 Lock the device

A logged-in user can lock the device to prevent unwanted interventions. Active
temperature control application is not interrupted. A locked device cannot be
operated, it must first be unlocked by the last user or an administrator.

 The device is switched on.
 A basic user or advanced user is logged in.

1. Call up the <Main menu>.

2. Call up the submenu <Unit account>.

 The logged in user group is displayed.

3. Activate the [Lock unit] button.

 The device is unlocked. The lock symbol is displayed at the bottom edge of

the home screen.

8.5.7 Set inactivity timer

After a defined period of inactivity on the display, the device is automatically
locked. The inactivity timer can be set up by a logged-in user.

 The device is switched on.
 A basic user or advanced user is logged in.

1. Call up the <Main menu>.

2. Call up the submenu <Unit account>.

 The logged in user group is displayed.

3. Press the [Idle time] button.

 An input field will open.

4. Enter the duration for the inactivity timer in the specified time format and
confirm your input.

 The duration is displayed on the [Idle time] button.

5. Activate the [Idle timer] button.

 The inactivity timer is set up and active. As soon as the duration of inactivity

on the display has elapsed, the device is locked.

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8.5.8 Reset settings

All settings in the <Unit account> menu can be reset to factory settings at any
time. The administrator password is required to reset the settings.

 The device is switched on.

1. Call up the <Main menu>.

2. In the submenu <Unit account> call up the menu option <Settings>.
 An input field will open.

3. Enter the administrator password and confirm your input.
 Factory setting for the administrator password: 000000.

4. Press the <Reset> button.

5. Acknowledge the confirmation prompt with [OK].
 All unit account settings are reset to factory settings.

8.6 Record data

8.6.1 Record measurement data

Measurement data for an ongoing temperature control application can also be
recorded onto a USB stick at the same time. The record documents the date,
time, setpoint temperature, intern actual value, external actual value and the
percentage power. The data is saved as a .txt file and can be subsequently
analyzed.

 The device is switched on.
 A USB stick is available.

1. Call up the <Main menu>.

2. Call up the submenu <Record data>.
 The warning appears: “No USB stick recognized!”

3. Insert the USB stick into the USB socket on the back of the device.

4. Press the button [File] to change the filename if required.

5. Press the button [Sampling time] and set the cycle in which measurement

data should be recorded.

6. Activate the [Activate] button.
 The measurement data recording is started and this is shown with a red

point on the home screen. The data is recorded on the USB stick using the
specified filename. Stop recording by deactivating the [Activate] button.

Operation

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Operation

8.6.2 Reading out blackbox data

The blackbox stores all relevant data from the last 30 minutes. In addition, the
black box logs alarms and warnings.

The blackbox can be read out and the data sent to technical service for analysis.

 The device is switched on.
 A USB stick is available.

1. Call up the <Main menu>.

2. Call up the submenu <Record data>.

 The warning appears: “No USB stick recognized!”

3. Insert the USB stick into the USB socket on the back of the device.

4. Scroll down the display to Blackbox and press the [File] button to change
the displayed filename if required.

5. Press the button [Save].

 The blackbox data is saved onto the USB stick as a .txt file.

8.6.3 Displaying alarm memory

Alarm messages are stored with date, time, alarm code and unit identifier. The
data can be read out via the menu.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Record data> then the menu option <Alarm
memory>.

 The device lists the stored alarm messages. Individual alarm messages can

be called up by tapping.

 Alarm messages are cleared by swiping to the left and confirming the

displayed delete icon.

 The alarm memory is displayed.

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8.7 Thermodynamics

8.7.1 Control parameter

The device works with a PID control. Experience has shown that the control
parameters set ex works achieve an optimal temperature sequence in the
sample.

The internal and external control parameters can be adjusted in the submenu

<Determine thermodynamics> <Controller settings>.

Automatic

The device independently calculates the control parameters during tempering
and adjusts them automatically. It is not possible to manually change the
control parameters and dynamics.

Proportional range Xp

The proportional range Xp is the temperature range between the setpoint value
and the actual value, in which the heating capacity can be adjusted from 100%
to 0%. The value for Xp can be selected between 0 K and 10 K.

Integral controller Tn

The integral controller Tn is indicated in seconds. It reduces the difference
between the setpoint value and the actual value caused by the Xp component,
and keeps to the setpoint value.

Differential controller Tv

The differential controller Tv is specified in seconds. It shortens the regulation
time.

Dynamics

With internal control, [Standard] or [Aperiodic] can be selected for the
control dynamics:

• With Aperiodic the temperature increase is temporally offset, so that the

actual temperature doesn’t overshoot

• With Standard the temperature increase is faster, but the actual

temperature can overshoot by up to 5 %

CoSpeed factor

The CoSpeed factor affects the temperature sequence when used with external
control. It directly affects Xpu and causes more aggressive temperature control.

Operation

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Operation

Proportional range Xpu

The proportional range Xpu plays a role in external control. It corresponds with
the proportional range Xp for internal control.

8.7.2 Optimizing temperature curves

The temperature sequence shown on the display provides information about
how individual control parameters can be optimized to achieve a better result.

Optimal temperature sequence,
temperature quickly reaches the
setpoint without overshooting,
and keeps the setpoint.

Symptom: Temperature sequence
slowly approaches the setpoint
and doesn’t quite reach it.
Solution: Decrease Tv and/or Tn,
increase Xp.

Symptom: Temperature sequence
quickly approaches the setpoint,
but overshoots it and oscillates.

Solution: Increase Tv and/or Tn.

Symptom: Temperature sequence
quickly approaches the setpoint
and overshoots.

Solution: Increase Xp.

Symptom: Temperature sequence
quickly approaches the setpoint,
the temperature builds up and the
setpoint is exceeded.

Solution: Decrease Xp and/or Tv.

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8.7.3 Adjust controller

In the menu <Adjust controller> the individual control parameters for
internal and external control can be set.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Determine thermodynamics> and the menu

option <Adjust controller>.

3. Activate internal or external control.
 This results in the respective adjustable control parameters. External control

is only possible with an externally connected Pt100 temperature sensor.

4. Switch to the submenu <Adjust control performance>.

5. Set the desired parameters.

6. For internal control: Activate the aperiodic temperature sequence or the

standard temperature sequence.

 The control parameters are set and immediately active.

8.7.4 Limit cooling capacity and heating capacity

In the menu <Adjust limits> the cooling capacity and heating capacity are
limited.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Determine thermodynamics> and the menu

option <Adjust limits>.

3. Set the limit values for the cooling capacity and the heating capacity.
 The values are set and are immediately active.

8.7.5 Adjust pump

The performance of the pump can be set in one-percent increments.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Determine thermodynamics> and the menu

option <Adjust pump>.

3. Enter the desired value for pump capacity in percent.
 The minimum value is defined internally. The maximum value is limited to

the adjustable maximum pump capacity in the menu <Adjust safety>.

4. Confirm your input.
 The set value is immediately active. The pump is set.

Operation

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Operation

8.8 Remote control device

The device can be connected to a PC via its interfaces and controlled remotely
using a program such as ° EasyTemp. It is also possible to send interface
commands to the device using a terminal.

The respective interface is set up when the remote control is deactivated.

8.8.1 Remote control device using USB interface

The device can be remote-controlled via the standard USB B interface.

 The device is switched off.
 The computer has a terminal program installed.

1. Connect the device (USB plug type B) to the computer with a commercially
available USB cable.

2. Download the suitable USB driver from the download area of the website

 Depending on the operating system used by the connected computer, it may

be necessary to install the USB driver.

3. Install the USB driver on the computer.

4. Switch the device on.

5. Call up the <Main menu> on the device.

6. In the submenu <Connect unit>/<Remote control> activate the USB
interface.

 The home screen will show USB mode.

7. Start the terminal program on the computer.

8. Use the terminal program to select the COM port of the device and establish
a connection.

 Remote control via the USB interface is activated. This is shown with the

“USB” on the home screen. You can now remotely control the device with
interface commands via the computer.

8.8.2 Set RS232 interface parameters

The interface parameters cannot be changed during remote control mode. If
they differ from the factory settings, they must be set before remote control
mode is activated.

 Remote control is deactivated.

1. Call up the thermostat in the <Main menu>.

2. Call up the <Serial> menu item in the
<Connect device>/<Interfaces> submenu.

3. First select the desired mode.

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4. Set the interface parameters [Baud rate], [Handshake] and [Parity] if

they differ from the factory settings.

 If parity is "None," the number of data bits is set to 8.
 The interface parameters are set and immediately active.

8.8.3 Remote control device using RS232 interface

The device can be remote-controlled via the RS232 interface. A null modem
cable is required to connect to a PC.

 The device is switched off.
 The computer has a terminal program installed.

1. Connect the circulator with the computer using a null modem cable.

2. Switch the circulator on.

3. Call up the circulator on the <Main menu>.

4. In the submenu <Connect unit>/<Interfaces> activate the serial

interface RS232.

5. In the submenu <Connect unit>/<Remote control> activate the

"Serial" connection type.

 The Home screen will show RS232 mode.

6. Start the terminal program on the computer.

7. Enter the interface parameters into the terminal program.

8. Use the terminal program to select the COM port of the circulator and

establish a connection.

 Remote control via the RS232 serial interface is activated. You can now

remote control the circulators with interface commands via the terminal
program. See appendix for interface commands.

8.8.4 Remote control device using RS485 interface

The device can be remote-controlled via the RS485 interface. A null modem
cable is required to connect to a PC.

 The device is switched off.
 The computer has a terminal program such as HTerm installed.

1. Connect the circulator and computer via the RS485 socket, e.g. with a USB

to serial adapter.

2. Switch the circulator on.

3. Call up the circulator on the <Main menu>.

4. In the submenu <Connect unit>/<Interfaces> activate the serial

interface RS485.

5. Enter an address for the RS485 interface.

6. In the submenu <Connect unit>/<Remote control> activate the

"Serial" connection type.

Operation

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Operation

 The Home screen will show RS485 mode.

7. Start the terminal program on the computer.

8. Enter the interface parameters into the terminal program.

9. Use the terminal program to select the COM port of the circulators or the
connected adapter, and establish a connection.

 Remote control via the RS485 serial interface is activated. You can now

remote control the circulators with interface commands via the terminal
program. See appendix for interface commands.

8.8.5 Set EPROG input

The EPROG input can be used to send an external voltage or current signal to
the circulator. Depending on the setting, the circulator interprets the input
signals as a setpoint temperature, power capacity, flow or pressure, and can
output the values as a display on the start screen.

Please note the technical data of the REG/EPROG socket.

 The device is switched on.
 The remote control mode is deactivated.
 An external signal transmitter is connected via the REG/EPROG socket.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit> then menu option <Interfaces>.

3. From the submenu <Analog module> select the menu option <EPROG>.

4. Select the input variable [Setpoint], [Performance], [Flow] or
[Pressure].

5. Select the signal type voltage or current.

6. Use the external signal transmitter to go to the lower voltage or current
limit.

 The value is displayed in the menu as the current value (V or A).

7. Tap the [Low value] button and enter the low input value (setpoint,
performance, flow or pressure).

 The value is displayed in the menu as the current value (°C, °F, %, l/min,

gpm, bar, psi).

8. Repeat steps 6 and 7 for the upper limit value.

 The EPROG input is set. In the submenu <Settings>, the values for display

on the start screen can be selected. The setpoint temperature or
performance can also be used as an external setpoint value or as an
actuating variable.

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8.8.6 Set external setpoint values

By default the setpoint is adjusted on the device or by the programmer. In
addition to this, the device offers the ability to externally specify the setpoint
using the analog REG/EPROG plug or an external Pt100 temperature sensor.

 The device is switched on.
 The remote control mode is deactivated.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit> then menu option <External

setpoint>.

3. Select Pt100 or EPROG.
 Pt100 can only be selected if an external Pt100 temperature sensor is

connected to the device. The setpoint is then set using the external
temperature sensor.

 EPROG can only be selected if the analog option is available and the

setpoint is defined as the input variable in submenu <Analog module>
for EPROG.

 The external setpoint value is defined.

8.8.7 Set up actuating variable

If the device is in remote control mode then the variable (capacity) with which
the cooling unit or heater is controlled can be set using interface commands.

This section describes how the actuating variable can be set.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit> then menu option <Actuating

variable>.

3. Select Digital or Analog in the dialog window.

 Digital can only be selected if remote control mode is activated.
 Analogue can only be selected if the electronic module with analogue

connections is available and has been defined as an input variable in the
submenu <Analogue module > for EPROG.

 The actuating variable is set.

Operation

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Operation

8.8.8 Request device status

The current device status can be queried via an interface command.

 The device is connected to a PC via an interface.

1. Enter the command "status“ in the terminal program and press [Enter].

 The device responds with a status message. If an alarm or warning is

pending, the device sends the respective alarm or warning message to the
status query. Explanations of the status messages as well as alarm and
warning messages can be found in the Appendix.

8.9 Watchdog function

During a temperature control application in remote control mode, the watchdog
function monitors the active interfaces. In the event of a fault in the higher-level
data processing system, the watchdog function ensures that the device switches
to a previously defined safe operating status.

Cyclical data communication between the higher-level main computer and the
device is crucial. If data transmission is interrupted for a pre-defined period, the
watchdog function is activated.

Various conditions for safe operating status can be defined in the operating
menu:

• Mode: Specifies how the device should react when the watchdog function is
activated.

• Timeout: Defines how long data transfer from the main computer is
permitted to be interrupted before the watchdog function is activated.

• Setpoint: Defines the setpoint temperature that is activated to put the unit in
a safe state.

• Restart mode: Select whether the watchdog function should be reset when
only the setpoint temperature is received or upon all valid commands.

• Enabling/disabling warning. A warning message can be transmitted when
the watchdog function is enabled.

• Reset warning message: Here you can set whether the warning message is
reset manually or automatically.

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Operation

5. In the [Final state] field, select how the device should behave after the
timer expires.

6. Enable the [Activate] field to start the timer.

 The timer is programmed and active. The set duration starts to elapse once

the setpoint temperature is reached.

8.10.2 Creating and editing a temperature control profile

Eight individual temperature control profiles can be created with up to 60
individual steps each. The programmer processes the programmed steps of a
temperature control profile according to the specifications.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Use programmer> then the menu option
<Programmer>.

3. In the submenu <Manage profile> call up one of the profiles.

4. Call up the menu option <Edit profile>.

 The existing steps of the profile are displayed. If there are no steps, the

[Add step] softkey appears.

5. Tap on one of the displayed steps and select the step type via the
[Starting via] button.

 Depending on the step type, the parameter gradient or time is shown.

6. Enter the parameters using the softkeys [Setpoint] and [Gradient] or
[Time] and confirm your input.

7. If necessary, add a new step to the current step using the soft key [Add
step].

 The added step opens as an editable dialog window.
 In the submenu <Manage profile>, you can use the [Display profile]

button to display the created profile as a diagram.

8. When you have finished editing the temperature control profile, the soft key
[Back] takes you back to the submenu <Use programmer>.

 The temperature control profile has been created and saved.

8.10.3 Import temperature control profile

Temperature control profiles can be imported from another device via a USB
stick.

 The device is switched on.

1. Insert the USB stick with a temperature control profile to be imported into
the USB socket.

2. Call up the <Main menu>.

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3. Call up the submenu <Use programmer> then the menu option

<Programmer>.

4. In the submenu <Manage profile> call up a profile.

5. Tap the [Import profile] button.

6. In the dialog window, select the temperature control profile to be imported

from the USB stick and confirm your input.

 The temperature control profile is imported and saved in the selected profile

on the device.

 The temperature control profile is imported.

8.10.4 Export temperature control profile

Temperature control profiles can be exported to a USB stick, for example to be
used on other devices.

 The device is switched on.

1. Insert an empty USB stick into the USB socket.

2. Call up the <Main menu>.

3. Call up the submenu <Use programmer> then the menu option

<Programmer>.

4. In the submenu <Manage profile> call up a profile.

5. Tap the [Export profile as] button.

6. Enter a name for the profile to be exported and confirm your input.

7. Tap the [Export profile] button.
 The temperature control profile is exported to the USB stick as a .txt file and

can be imported to other devices.

8.10.5 Delete temperature control profile

Existing temperature control profiles can be completely deleted. This deletes all
saved profile data.

 The device is switched on.

1. Call up the <Main menu>.

2. From the submenu <Use programmer>/<Programmer> call up the

menu option <Manage profile>.

3. Select a temperature control profile.

4. Press the <Clear profile> button.

5. Acknowledge the confirmation prompt.
 The temperature control profile will be deleted. Once all steps are removed,

the [Add step] softkey remains in the deleted profile.

Operation

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Operation

8.10.6 Profile series setup

The submenu <Activate programmer> is used to set up the sequence of a
profile series. This defines the start time, the number of runs, the cycle and the
behavior of the device at the end of the profile series.

 The device is switched on.

1. Call up the <Main menu>.

2. Call up the submenu <Use programmer> then the menu option
<Activate programmer>.

3. Scroll down the menu page and select the sequence cycle with the [Series
type] button.

 In addition to daily or weekly, individual weekdays can also be selected.

4. Use the [Use end date] button to select if the profile series should be
ended on a certain date.

5. If necessary, enter the desired end date using the [End date] button.

 If no end date is used, the profile series will run until it is ended manually.
 The profile series is set up. If the programmer is activated, the profile series

starts immediately or at the specified start time and runs through the
selected profile according to the defined settings. Then the programmer will
repeat the profile according to the set series type. After the profile series
has been completed, the device switches to the defined final state. An
ongoing profile series can be ended manually at any time.

8.10.7 Activate programmer

The programmer is started with a selected profile and runs through the profile
according to the specifications.

 The device is switched on.
 The programmer is deactivated.

1. Call up the <Main menu>.

2. Call up the submenu <Use programmer> then the menu option
<Activate programmer>.

3. First use the [Select profile] button to select the desired temperature
control profile.

4. Use the [Number of runs] button to specify how often the selected profile
should be repeated.

5. Use the [Final state] button to specify how the device should behave after
the end.

6. Select the [Plan start] button to specify the start time and start date.

 When the programmer is activated, the start time is shown in the

programmer status display on the home screen. As soon as temperature
control application starts, the active profile is displayed.

7. Scroll up the menu page and activate the programmer.

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 The programmer is activated. It starts either immediately or at the

programmed start time on the specified start date and goes through the
specified number of runs one after the other. After the last run, the device
switches to the defined final state.

 When the programmer is active, the [Quick access programmer] button

is displayed at the bottom of the home screen. Use this button to stop or
end the programmer, or edit the active profile.

8.11 Configure signal outputs

8.11.1 Set up Stakei outlet

A solenoid valve connected to the Stakei output can be assigned various
functions depending on the application.

 The device is switched on.
 A solenoid valve is connected to the Stakei output.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit> then menu option <Interfaces>.

3. Use the [Control output] button to select the desired function for the

connected solenoid valve.

 The Stakei output is set up and active.

8.11.2 Configure signal outputs of the REG/EPROG plug

The REG/EPROG socket provides three channels as signal outputs. The voltage
or current signals emitted via these channels can be externally processed.

The following values can be output:

• Setpoint: Specified setpoint

• Internal: Internal temperature sensor value

• External: External Pt100 temperature sensor value

• Performance: Value of the variable

 The device is switched on.
 The electronics module with analog connections is mounted.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit>.

3. From the submenu <Interfaces>, select the menu option <Analog

module>.

4. For [Channel 1] select the output value setpoint, internal, external or

capacity.

5. Enter the lowest output value as the 0 V value.

6. Enter the highest output value as the 10 V value.

7. Repeat the steps 4 to 6 for [Channel 2].

Operation

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Operation

 [Channel 3] configures the current output. 0 mA or 4 mA can be selected

for the lowest output value.

8. Enter the lowest output value as the 0 mA/4 mA value.

9. Enter the highest output value for the 20 mA value.

 The signal outputs of the REG/EPROG socket are configured.

8.11.3 Configure alarm outputs

This section describes how the alarm output is configured.

 The device is switched on.
 The electronics module with analog connections is mounted.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit>.

3. From the submenu <Interfaces>, select the menu option
<Analog module>.

2. In the menu option <Alarm output>, select the condition to be used as
trigger for a connected external circuit.

 The alarm output is configured.

8.12 Activating stand-by input

This section describes how standby input can be activated.

 The device is switched on.
 The electronics module with analog connections is installed.

1. Call up the <Main menu>.

2. Call up the submenu <Connect unit>.

3. From the submenu <Interfaces>, select the menu option <Analog
module>.

4. Activate [Standby].

 The standby input is activated and can be used.

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8.13 Adjusting the temperature sensor (ATC)

For physical reasons, there can be a temperature difference in the bath tank
between the temperature sensor and a defined, more remote point within the
bath fluid volume. As a result, the measured temperature deviates slightly from
the actual bath temperature. Adjustment of the temperature sensor can increase
accuracy of the temperature control application.

The adjustment of a temperature sensor requires the determination of the
temperature difference between the temperature sensor and the reference
thermometer. Three adjustment options are available:

• 1-point adjustment: When a sample is tempered to a certain setpoint. The

adjustment curve is displaced parallel to the original curve by the reference
amount.

• 2-point adjustment: When the temperature is controlled between two

setpoints. The slope of the temperature curve is adjusted between two
points.

• Multi-point calibration: When temperature is controlled within a

temperature range. This results in an arched temperature curve.

8.13.1 Adjust internal temperature sensor

This section describes how to adjust the internal temperature sensor of the
device.

 The bath tank is filled.
 The unit is switched on.
 A calibrated reference thermometer is available.

1. Temper the sample to the desired setpoint temperature.

2. Wait until the temperature in the bath has stabilized and is shown on the

display of the circulator.

3. Hang the reference thermometer in the bath tank near the tempered

sample.

4. Read the temperature value on the reference thermometer.

5. Call up the <Main menu> and then the submenu <Install unit>.

6. In the submenu <Adjust temperature sensors> select the function

<ATC internal>.

7. Press the [Add new correction point] button.
 Two options are displayed for selection.

8. If you press [Accept current temperature], the current measured

temperature is adopted and the dialog window for entering the
corresponding correction value opens.

Operation

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Operation

9. When [Enter temperature] is pressed, the dialog window for entering
the temperature value and correction value opens.

10. Enter the required value and confirm your entry.

 The correction value is active immediately.
 The internal temperature sensor is adjusted with a correction point.

8.13.2 Adjust the internal temperature sensor - multi-point calibration

This section describes how to adjust the internal temperature sensor of the
device with multiple correction points. The adjustment can be performed with
up to ten correction points.

 The device is switched on.
 The bath tank is at least two thirds full.
 A calibrated reference thermometer is available.

1. Initially proceed in the same way as for the 1-point adjustment.

2. Go to the Home screen and enter the setpoint temperature for the next
correction point.

3. Wait until the temperature in the bath has stabilized and is shown on the
display of the circulator.

4. Go to the ATC submenu <ATC internal> and press the
[Correction point 1] button or the button of the last correction point that
was added.

 The correction point opens.

5. Press the button for a new correction point and proceed in the same way as
described for the 1-point adjustment.

6. Repeat steps 2 to 5 for each additional correction point and confirm your
input in each case.

 The correction values are active immediately.
 Up to ten correction points can be created for the adjustment.
 The multi-point adjustment is completed. The internal temperature sensor is

adjusted.

8.13.3 Adjust external temperature sensor

Measurable temperature differences can also occur in a connected application.
As with the internal temperature sensor, adjustment of the external temperature
sensor can improve accuracy of the temperature control application.

 The device is switched on.
 The application is at least two thirds full.
 A calibrated reference thermometer is available.

1. Temper the sample in the application to the desired setpoint temperature.

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2. Wait until the temperature in the application has stabilized and is shown on

3. Hang the reference thermometer in the bath tank of the application near the

4. Read the temperature value on the reference thermometer.

5. Call up the <Main menu> of the circulator and then the submenu

6. In the submenu <Adjust sensor> select the function <ATC external>.

7. Tap the [Correction point 1] button.

8. Enter the reference value in the input window and confirm your input.
 The correction value is active immediately.
 The external temperature sensor is adjusted.
 Adjustment of the external temperature sensor, via up to ten correction

8.14 Device Reset

The function resets the device to the factory settings.

 The device is switched on.

1. Bring up the <Main menu>.

2. Call up the <Reset device> menu item in the <Install device>

3. If you want to reset the device, confirm the security prompt with [OK].
 The device is reset to factory settings.

Operation

the display of the circulator.

tempered sample.

<Install unit>.

points, is carried out in the submenu <ATC external> in the same way as
adjustment of the internal temperature sensor.

submenu.

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Maintenance

9 Maintenance

9.1 Check safety symbols

The safety labels affixed to the device must be clearly legible at all times. Their
condition must be checked every two years.

1. Check the safety signs on the device for legibility and completeness.

2. Replace defective or missing safety markings.

 Safety signs can be reordered from JULABO.
 The safety signs on the device have been checked.

9.2 Check the functionality of high temperature cut-off

This section describes how you can test that the high temperature safety
function is operational.

 Slotted screwdriver, size 3

 The device is switched on.

1. Set the display of the start screen so that it shows the high temperature cut­off value.

2. Use the screwdriver to adjust the overtemperature protection to a
temperature that is below the displayed actual value.

 An acoustic signal sounds and the alarm message “Set protective

temperature exceeded” is displayed. The high temperature cut-off works.

3. Then set a value that is above the actual value.

4. Switch the device off, wait a few seconds, then switch the device on again.

 The alarm message is deactivated.

5. Set the high temperature cut-off.

 The high temperature cut-off is set and its functionality tested.

9.3 Test the low liquid level safety function

This section describes how you can test that the low liquid level safety function
is operational.

 The device is switched on.

1. Remove the bath lid.

2. Using a long object, e.g. a straightedge, carefully push the thermostat float
downwards until it reaches its mechanical stop.

 A beep sounds and the “Tempering fluid level too low” alarm message is

displayed. The low liquid level safety function works.

3. Switch the device off, wait a few seconds, then switch the device on again.

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2. Completely drain the bath fluid.

3. Clean the surface of the circulator and the bath tank with a damp cloth.
 Some dish detergent may also be used for cleaning. If in doubt, ask

technical service for alternative cleaning mediums.

 The device has now been cleaned.

9.8 Device storage

This section describes how to store the device.

 The device is switched off and disconnected from the mains voltage.

1. Empty all system components completely.

2. Clean the device.

3. Carefully dry the device and all its system components, e.g. with

compressed air.

4. Close all connections.

5. Store the device in a dust-free, dry and frost-free location.
 The device is protected and can be safely stored there. It can be put into

operation again as needed.

Maintenance

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11 EC Declaration of Conformity

EC Declaration of Conformity

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UK Declaration of Conformity

12 UK Declaration of Conformity

UK Office: JULABO UK Ltd., Unit 7, Casterton Road Business Park,
Old Great North Road, Little Casterton, Stamford, PE9 4EJ, United Kingdom,

Tel.: [phone]

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