JULABO F38-ME User Manual

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Operating Manual

Beer Forcing Test Refrigerated/Heating

English

Circulating Bath F38-ME

1.951.0541-V2 06/13

JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de

19510541-V2.doc 15.07.13

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 easy way to the Beer Forcing Test page 36

Notice:

This abbreviated version does not release the user from the duty to instruct the operating personnel on the work with this unit and particularly to point out to possible dangers.

The JULABO Quality Management System

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

Printed in Germany Changes without prior notification reserved

For the general use in the laboratory the refrigerated and heating circulator F38-ME offers a lot of setting possibilities, which are not necessary for doing a „Forcing Test“. In the chapter „The easy way to the Forcing Test“ the advices for the necessary settings are summarised.

Advices which are particularly important for doing a forcing test, are marked with the symbol of a bottle (see left side).

Temperature control devices for research and industry are developed, produced, and distributed according to the requirements of ISO 9001 and ISO 14001. Certificate Registration No. 01 100044846

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

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

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

Operating instructions ................................................................................................................... 11

3. Safety notes for the user ........................................................................................................ 11

3.1. Explanation of safety notes ................................................................................................ 11

3.2. Explanation of other notes ................................................................................................. 11

3.3. Safety recommendations ................................................................................................... 12

4. Operating controls and functional elements ........................................................................... 14

4.1. Circulator ............................................................................................................................ 14

4.2. Cooling Machine ................................................................................................................ 16

5. Preparations ........................................................................................................................... 17

5.1. Installation .......................................................................................................................... 17

5.2. Bath fluids .......................................................................................................................... 18

5.3. Filling / draining .................................................................................................................. 19

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

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

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

6.2.1. Switching on the circulator ............................................................................................. 20

6.2.2. Switching on the Cooling Machine ................................................................................ 21

Setting of temperatures ............................................................................................. 22

7.1. Using the pre-settings in the

7.2. Direct setting of temperatures ............................................................................................ 23

8.1. Excess temperature protection .......................................................................................... 24

8.1.1. Early warning system, low level protection .................................................................... 25

8.2. Switch-over from warning to shutdown function................................................................. 26

8.3. Over and Sub temperature warning function ..................................................................... 27

Safety installations, warning functions ...................................................................... 24

menu ....................................................................... 22

9.1. MENU PROGRAM – START ............................................................................................ 29

9.1.1. START Mode Forcing test ............................................................................................ 29

9.1.2. START Mode Standard ................................................................................................ 29

9.2. MENU PROGRAM – creation, administration .................................................................... 32

9.2.1. FORCING-Test Program ............................................................................................... 32

9.2.2. STANDARD Program .................................................................................................... 34

9.2.3. The easy way to the forcing test .................................................................................... 36

9.3. MENU PUMP – Setting of pump pressure ......................................................................... 40

9.4. MENU CONFIG – Configuration of unit ............................................................................. 41

9.4.1. REMOTE ....................................................................................................................... 42

9.4.2. AUTOSTART ................................................................................................................. 42

9.4.3. OFF-MODE ................................................................................................................... 43

9.4.4. Setting of clock and date ............................................................................................... 43

9.4.5. RESET – Factory settings ............................................................................................. 43

9.5. MENU CONTROL – Control characteristics and parameters ............................................ 44

9.5.1. CONTROL – Control INTERNAL / EXTERNAL ............................................................ 45

9.5.2. Dynamic internal ............................................................................................................ 46

9.5.3. Control parameters – XPU-, XP-, TN-, TV- EXTERNAL ............................................... 46

9.5.4. Control parameters– XP-, TN-, TV- INTERNAL ............................................................ 47

Menu functions ......................................................................................................... 28

9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY .................................................... 48

9.7. MENU ATC - Absolut Temperature Calibration ................................................................. 49

9.7.1. ATC SENSOR - INTERNAL / EXTERNAL .................................................................... 51

9.7.2. ATC STATUS - YES / NO ............................................................................................. 51

9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT ........................................................................ 52

9.7.4.

Example: 3-point calibration for internal control ........................................................... 53

9.8. MENU LIMITS .................................................................................................................... 55

9.8.1. Limits for internal control ............................................................................................... 56

9.8.2. Limits for external control .............................................................................................. 56

10. Troubleshooting guide / error messages ................................................................................ 58

11. Electrical connections ............................................................................................................. 61

12. Remote control ....................................................................................................................... 62

12.1. Setup for remote control .................................................................................................... 62

12.2. Communication with a PC or a superordinated data system ............................................. 63

12.3. List of commands ............................................................................................................... 64

12.4. Status messages ............................................................................................................... 66

12.5. Error messages .................................................................................................................. 66

13. JULABO Service – Online remote diagnosis .......................................................................... 68

14. Cleaning / repairing the unit .................................................................................................... 69

Operating manual

1. Intended use

JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. The JULABO forcing test refrigerated/heating circulating bath in connection with a photometer determines the product life of beer without clouding.

JULABO circulators are not suitable for direct temperature control of foods, semiluxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath medium (bath fluid).

1.1. Description

 The 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.

1x10

PID3

ATC

RS232

Pt100

SMART

PUMP

 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 GmbH Eisenbahnstraße 45 77960 Seelbach / Germany

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

Safety instructions for the operator:

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

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

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

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

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

instruments being operated on the same mains.

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

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

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

Appropriate operation

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

Use:

The bath can be filled with flammable materials. Fire hazard! There might be chemical dangers depending on the bath medium used. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data sheets). Insufficient ventilation may result in the formation of explosive mixtures. Only use the unit in well ventilated areas.

Only use recommended materials (bath fluids). Only use non-acid and non corroding materials. When using hazardous materials or materials that could become hazardous, the operator must affix

the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible:

or 2

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.

Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions. (operating manual, safety data sheet)

Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation. Scope: EU

Semi S1-0701 Table A1-2 #9 Carefully read the user information prior to beginning operation. Scope: USA, NAFTA

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

2.1. Disposal

The circulator contains a back-up battery that supplies voltage to memory chips when the unit is switched off. Do not dispose of the battery with household waste! Depending on battery regulations in your country, you might be obliged to give back used or defect batteries to gathering places. The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil. For disposal, observe the instructions in the safety data sheets.

These units contains refrigerants– at this time considered not to have any negative effects on the ozone layer. However, during the long operating period of the unit, disposal prescriptions may change. So only qualified personnel should take care of disposal.

Valid in EU countries See the current official journal of the European Union – WEEE directive. Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE). This directive requires electrical and electronic equipment marked with a crossedout trash can to be disposed of separately in an environmentally friendly manner. Contact an authorized waste management company in your country. Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!

Operator responsibility – Safety recommendations

2.2. EC Conformity

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

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

the laws of the Member States relating to machinery.

EMC guideline with respect to legal harmonization of the member countries

concerning electromagnetic compatibility.

JULABO GmbH Eisenbahnstr. 45 77960 Seelbach / Germany

2.3. Warranty conditions

JULABO GmbH warrants its products against defects in material or in workmanship, when used under appropriate conditions and in accordance with appropriate operating instructions

for a period of ONE YEAR.

Extension of the warranty period – free of charge

With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to 24 months, limited to a maximum of 10 000 working hours.

To apply for this extended warranty the user must register the unit on the JULABO web site www.julabo.de, indicating the serial no. The extended warranty will apply from the date of JULABO GmbH’s original invoice.

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

Any other compensation claims are excluded from this guarantee.

2.4. Technical specifications

F38-ME Working temperature range °C -38 ... 80

Temperature stability °C ±0,05

Temperature selection digital via keypad 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 temperature control

Heater wattage (at 230 V) kW 2,0

Cooling capacity Medium ethanol Refrigerant R404A Electronically adj. pump capacity stages 1 ... 4 Flow rate at 0 bar l/min 11 ... 16 Max. pressure at 0 liters bar 0.23 ... 0.45

Electrical connections: External alarm output 24-0 Vdc / max. 25 mA Computer interface RS232 External temperature sensor Pt100

Overall dimensions (WxDxH) cm 44x64x82 Bath opening (WxL) cm 35x41 Bath depth cm 27 Filling volume from ... to liters 45 Weight kg 80 Ambient temperature °C 5 ... 40

Mains power connection 230 V/50 Hz V/ Hz Current draw (at 230 V) A Mains power connection 230 V/60 Hz V/ Hz Current draw (at 230 V) A

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

°C kW

+20 0 -20

0.92 0.66 0.32

207 ... 253/ 50 14 207 ... 253/ 60 14

Operator responsibility – Safety recommendations

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

Caution:

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

3. Safety notes for the user

3.1. Explanation of safety notes

In addition to the safety warnings listed, warnings are posted throughout the operating manual. These warnings are designated by an exclamation mark inside an equilateral triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word. Read and follow these important instructions for averting dangers.

Warning:

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

Caution:

Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries could result. A warning of possible property damage may also be contained in the text.

Notice:

Describes a possibly harmful situation. If this is not avoided, the product or anything in its surroundings can be damaged.

3.2. Explanation of other notes

Note!

Draws attention to something special.

Important!

Indicates usage tips and other useful information.

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

Safety notes for the user

3.3. Safety recommendations

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

valid safety instructions for workplaces must be followed.  Only connect the unit to a power socket with an earthing contact (PE – protective

earth)!

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

must always be easily accessible.

 Place the unit on an even surface on a base made of nonflammable material.  Do not stay in the area below the unit.  Make sure you read and understand all instructions and safety precautions listed in

this manual before installing or operating your unit.

 Set the excess temperature safety installation at least 25 °C below the fire point of

the bath fluid.

 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 wat e r 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 opera te 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 opera te units with damaged mains power cables.  Repairs are to be carried out only by qualified service personnel.

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

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



Caution:

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 determine the method of decontamination.

Notice: Check the safety installations at least twice a year!

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

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

Operating controls and functional elements

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

- icon for „keep key pressed down“.

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

Menu keys

Key: start the menu > warning and safety values<

6 7

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 /

Remote 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

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

Socket: control cable of JULABO refrigerated circulator or output for alarm messages

Interface RS232: remote control via personal computer

RS232

Socket for external measurement and control sensor or external setpoint programming

Pt100

A M P

Mains circuit breakers (resettable) 15 A

20 Mains power cable with plug

, under >MENU - PUMP<.

Operating controls and functional elements

4.2. Cooling Machine

Front view Rear view

15a 15b 18b

20a 20b

21 Built-in mains outlet for connection of circulator 22 25

26a 26b

Castor with brake (at the front)

Mains power switch, illuminated for cooling machine

Socket: control cable of JULABO refrigerated circulator

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

Mains power cable with plug for circulator Mains power cable with plug cooling machine

Drain tap / Drain port

Venting grid, removable

Castor without brake (at the back)

5. Preparations

5.1. Installation

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

material. Using the castors move the unit to the intended location.

 The place of installation should be large enough and provide

sufficient air ventilation to ensure the room does not warm up excessively because of the heat the instrument radiates to the environment. (Max. permissible ambient temperature: 40 °C). With regard to a disturbance in the cooling loop (leakage), the guideline EN 378 prescribes a certain room space to be available for each kg of refrigerant. The necessary amount of refrigerant is specified on the type plate > For 0.52 kg of refrigerant R404A, a room space of 1 m

 F38-ME: Th e circulator fitted with a stainless steel bridge is placed on

on the back of the bath tank leaving the bath open on the front side.

is required.

 Keep at least 20 cm of open space on the front and rear venting

grids.

 Do not set up the unit in the immediate vicinity of heat sources and

do not expose to sun light

 Before operating the unit after transport, wait about one hour after

setting it up. This will allow any oil that has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compressor.

Preparations

5.2. Bath fluids

Caution:

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

corrosion in the bath, even in stainless steel.

Recommended bath fluids:

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

mixture water/glycol, mixture 1:1

-20°C to 50°C

JULABO bath fluids JULABO

Description

Thermal

Thermal HY

Thermal

H5 Order Number 10 liters 8 940 124 8 940 104 8 940 106 5 liters 8 940 125 8 940 105 8 940 107 Temperature range °C -30 ... 80 -80 ... 55 -50 ...105 Flash point °C -- 78 124 Fire point °C -- 80 142 Color

light yellow clear clear

See website for list of recommended bath fluids.

ATTENTION: The maximum permissible viscosity is 50 mm

/s.

Caution:

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

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.

 No liability for use of other bath fluids!

5.3. Filling / draining

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.

Filling

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

 By inserting the goods there is a displacement of the bath liquid. This

should be considered when filling the bath tank.

Recommendation for the use as forcing test with 20 beer bottles:

Filling level below the tank rim: 46 63 80 97 [mm] when using 5 10 15 20 bottles

Fill the bath tank according to the table (e.g. Thermal G). Put the stainless steel insert cage with the beer bottles into the bath tank. Then the filling height should be approx. 25 mm below the bath rim.

Limit value: Recommended filling level with water as bath fluid: max. 25 mm below the tank rim min. 70 mm below the tank rim (WARNING >CODE 40<)

 The circulator provides an early warning system for low level that

may be triggered when changing samples in the bath.

Draining

 Turn off the circulator and cooling machine.  Unscrew the drain tap (22) and empty the unit completely.  Tighten the drain tap.

Operating procedures

6. Operating procedures

6.1. Power connection

Caution:

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

earth)!

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

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).  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.

 Connect the circulator with mains power cable (20a) to the mains

outlet (21).

 Connect the control cable (15a) between the connectors  (15, 15b).  Connect the refrigerated circulator with mains power cable (20b) to

the mains socket.

6.2. Switching on / Start - Stop

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:

 Press

or Keep

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

key.

key pressed.

6.2.2. Switching on the Cooling Machine

Switching on:

 Switch on the cooling machine using the switch (1b) .

 Control of the cooling machine:

With the mains switch (1b) turned on, the circulator automatically switches the cooling machine off and on.

 It is switched off, if:

- the actual working temperature is increased by >30 °C (cooling is not required).

- the heater operates at full power (>800 W) for longer than 5 minutes.

 It is switched on, if:

- cooling is necessary for maintaining the bath temperature. After switch-off, the cooling machine automatically switches on only after a delay of 5 minutes for protecting the cooling compressor.

Setting of temperatures

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 key and 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 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

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.

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

Safety installations, warning functions

8. Safety installations, warning functions

SECVAL (Security Values)

 SAFETMP  AL-TYPE  OVERTMP  SUBTEMP

Check the safety installations at least twice a year! Refer to ( page 13)

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

Warning:

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!

Notice:

On the forcing test avoid an alarm CODE 14. The program is cancelled. On the restart the count of the cycles (CYCLE) restarts from zero. >SAFETMP< einstellen auf 70 °C

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.

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:

.

.

Notice:

On the forcing test avoid a low level alarm CODE 1. The program is cancelled. On the restart the count of the cycles (CYCLE) restarts from zero. Refill the bath liquid in time!

Warning:

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

Safety installations, warning functions

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

Factory setting: >WARNING<

be changed over from warning function >WARNING< to shutdown function >ALARM<.

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

key if the parameter is to retained.

key and the set parameter will flash .

key.

key and confirm by

 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:

OVERTMP SUBTEMP

8.3. Over and Sub temperature warning function

Over temperature

Sub temperature

Recommendation:

Settings of the forcing test

OVERTEMP 65,0 °C SUBTEMP -5,0 °C

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 select the menu >OVERTMP< or

key. The integer digits flash

key.

and

 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.

Menu functions

9. Menu functions



Menu level 1

The term „Menu functions“ refers to settings such as

Start program Page 29



Mode Forcing test Mode Standard

Administration and creation of programs Page 32 Mode Forcing test

Mode Standard Electronically adjustable pump capacity Page 35

Configuration of the unit Page 41 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 44 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 48 BAUD RAT E, PARITY, HANDSHAK E

ATC - Absolute Temperature Calibration, Page 49 Sensor calibration INTERNAL SENSOR, Sensor calibration EXTERNAL SENSOR 3-point calibration

Limitations of temperature and capacity Page 55 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 Press the

keys to scroll in menu level 1.

key to change to menu level 2. key if settings are to be retained.

key.

9.1. MENU PROGRAM – START

9.1.1. START Mode Forcing test

This menu will start a previously set program.

 Requirements:

Start-Menu



Menu level 1



Level 2 Parameter level



1. Create a program. (refer to chapter >MENU PROGRAM<)

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

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

Correction function for parameters or values (prior to OK)

> RUNS < Number of repetitions of the warm/cool phase 1 ... 10 > GO < Start the forcing test (NOW)

 Set number of runs with and

example: 1 run



9.1.2. START Mode Standard

This menu will start a previously set program.

 Requirements:

Start-Menu

Menu level 1



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

4. Return to the Start-MENU and confirm the desired setting of each MENU item with the key

5. 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)

 Confirm >NOW< with the key and the program

will start immediately

Menu functions Level 2 Parameter level



 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.



Submenu TIMER





Parameter level



 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

 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



 Set the year with

and .

 The program starts at the set time.

 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)

The started program 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.

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

I xxx.xx - internal actual value or 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

Termination / Interruption of a program

key. While the time is stopped the temperature will constantly

to scroll to line 3. The display changes

key.

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

Menu functions

9.2. MENU PROGRAM – creation, administration

Program Mode



Menu level 1

Set this menu item first!

In the >MENU PROGRAM< you can choose between the „Standard Program“ and the „Forcing Test-Program“.

This setting determines which submenu items are available in >PROGRAM EDIT< and >PROGRAM DELETE<.

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

Correction function for parameters or values (prior to OK)



Level 2 Level 3



 Set program mode with and

FORCING-Test Program page 32 STANDARD-Program page 34

9.2.1. FORCING-Test Program

>EDIT< PROGRAM – creation, administration

> W-TEMP< Temperature of the warm phase Adjustable from –40 °C up to +80 °C

>W-TIME < Duration of the warm phase Adjustable max. 999 h 59 minutes

> C-TEMP< Temperature of the cool phase Adjustable from –40 °C up to +80 °C

>C-TIME < Duration of the cool phase Adjustable max. 999 h 59 minutes

> DELETE< without function when forcing test program is set

>MODE< Program Mode

Menu level 1

 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 temperature setpoint of the warm phase (°C).

 Integer digits flash, set by pressing

 Decimal digits flash, set by pressing



Set duration of the warm phase (h.Min)

 Set duration by pressing



Set temperature setpoint of the cool phase (°C).

 Integer digits flash, set by pressing

 Decimal digits flash, set by pressing

(time slice)

and



Set duration of the cool phase (h.Min)

 Set duration by pressing

(time slice)

and

 Delete program



without function when forcing test program is set

Menu functions

[

]

9.2.2. STANDARD Program

Menu level 1

1 program 10 sections

The integrated programmer permits fast and easy programming of setpoint 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

200

150

100

75 50 25

Step 1 2 4 6 8

Graph1

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

min

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

retroactively and the integrated into the program.

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

(STEP 1 … 10)

and





(time slice)



 (Example: EDIT STEP 01)

 For STEP 01 the values for SETPOINT 01 and

TSLICE 01 are set one after the other

(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

9.2.3. The easy way to the forcing test

Notice:

On the forcing test avoid low level alarm CODE 1. The program is cancelled. On a restart the count of the cycles (CYCLE) restarts from zero. Refill the bath liquid in time!

1. Installation see page 17.

2. Power connection see picture „Rear view“ page 20

3. Filling / Bath fluid

Filling: see page 19

4. Insert the the product

Put the stainless steel insert cage with beer bottles into the bath tank and refill the fluid. Maximum filling height approx. 25 mm under the bath edge.

5. Put on the bath cover In order to reduce the loss of fluid due to evaporation of water, in case of long-term operation.

 The circulator ME is provided with an early-warning system for

low level, which activates at a filling height of 65-70 mm below the bath edge. For measuring cycles, which last for several days the liquid level should be peered once a day, in order to not to endanger the course of the forcing test.

6. Switching on: Circulator and cooling machine may be turned on and off with separate mains switches (1a, 1b).

Over and Sub temperature warning functions see page 27

7. Safety installations, warning functions Set the following value in the MENU

Excess temperature protection see page 25 Set >SAFETMP< to 70 °C

Set >OVERTMP< to 65 °C

Set >SUBTMP< to -5 °C

8. Setting the test temperature Select e.g. SETPNT 1 in the MENU

see page 22

and set 20 °C.



9. Set MENU Program to >Mode Forcier<

See page 32



10. Start the forcing test

As factory-setting the „Forcing test 60 °C“ is stored Measuring cycle:RUNS 1 flow (48 h)

Warm phase W-TEMP 60 °C Duration W-TIME 24 h Cool phase C-TEMP 0 °C Duration C-TIME 24 h

Setting of other values see page 32 „ FORCING-Test Program “

Start-Menu

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



Menu level 1



Level 2 Parameter level Level 2



Correction function for parameters or values (prior to OK)

> RUNS < Number of repetitions of the warm/cool phase 1 ... 10 > GO < Start the forcing test (NOW)

11. Program sequence A program sequence is described from page 38 on.



Menu functions

Program sequence: Example forcing test 60 °C

As factory-setting the „Forcing Test 60 °C“ is stored Measuring cycle: RUNS 1 repetition

Warm phase W-TEMP 60 °C Duration W-TIME 24 h Cool phase C-TEMP 0 °C Duration C-TIME 24 h

In the course of the program the VFD-DISPLAY shows messages concerning the process of the forcing test in line 2 and 3.

In line 3 two messages are shown alternately. Message 1 always indicates the program status (phase of the forcing test), message 2 indicates the status >RUN< (Test runs).

Message 2 can be changed by the editing keys time of a phase or >E ------< can still be chosen. (Message >E ------<, temperature value of the external temperature sensor is not important for the forcing test.)

.The remaining

Action diagram:

 Set measuring temperature :

1. Select in the MENU

(see page 22)

2. Start forcing test (see page 29)

e.g. SETPNT 1 and set 20 °C.

Beginning of the STARTUP-phase First the circulators tempers to the measuring temperature. Line 2: S 20.00 (SETPNT 1) is shown (Example: 20.0 °C) Line 3: Message 1 >STARTUP<, Message 2 >RUN<

or (The time of the start phase is not defined).

3. The measuring temperature is reached. Measuring window +/-0.2 °C. Line 3: Message 1 >STARTUP<, Message 2 >MEASURE<

Additionally the signal tone sounds, which asks for the first measuring

 in order to enter the start value.

4. Der Thermostat heizt. Die Zeit, >W-TIME< wird auf Null gezählt. Press the key Line 2: S 60.00 (W-TEMP) is shown (Example: 60 °C)

Line 3: Message 1 >WARM 1<, Message 2 >RUN< or The circulator is heating. The time >W-TIME< is counted to zero

5. The time >W-TIME< is over. Direct beginning of the cool phase Line 2: S 0.00 ( C-TEMP) is shown (Example: 0.0 °C) Line 3: Message 1 >COOL 1<, Message 2 >RUN<

or The circulator is cooling. The time, >C-TIME< is counted to zero.

>00h00.00<.

. Beginning of the warm phase.

>23h58.23<.

>21h18.06<.

6. The time >C-TIME< is over. Direct beginning of the WARMUP-phase Line 2: S 20.00 (SETPNT 1) is shown (Example: 20.0 °C) Line 3: Message 1 >WARMUP <, Message 2 >RUN<

or (Time of the WARMUP -Phase is not defined.)

7. The measuring temperature is reached. Line 3: Message 1 >CYCLE 1<, Message 2 >MEASURE<

Additionally a signal tone sounds, which asks for measuring

>00h00.00<.



 The number of repetitions (RUNS) form one meas uring cycle

(CYCLE). In the example the number of >RUNS< has been set to >1<,due to which already after a warm- cool phase >CYCLE 1< is reached and the demand for measuring is effected.

8. In order start the second measuring cycle for the example, the key

has to be pressed.

The program skips to position 4. Direct beginning of the warm phase.

 With each cycle warm phase and cool phase are counted up.

Menu functions

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 2

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.

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

key and confirm by

and confirm by pressing the

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 (for small bath tanks)

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 62  Connect RS232 with PC.

 Switch on and off autostart by pressing

AUTOSTART on = on AUTOSTART off = off

See WARNING page 42

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

Level 3 Parameter level



 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



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 62)

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

9.4.3. OFF-MODE

interface. If such a safety standard is not required, the NAMUR recommendations can be bypassed with the AUTOSTART function thus allowing a direct start of the circulator by pressing the mains switch or using a timer.

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.

9.4.5. RESET – Factory settings

 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

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



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



C-TYPE INTERNAL



for parameters or values (prior to OK)

 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.



C-TYPE EXTERNAL



 The parameter flashes, set by pressing

0.1 … 99.9

The parameter flashes, set by pressing

3 … 9999

The parameter flashes, set by pressing

0 … 999

The parameter flashes, set by pressing

0.1 … 99.9

The parameter flashes, set by pressing

3 … 9999

Level 2 Parameter level



The parameter flashes, set by pressing



0 … 999

The parameter flashes, set by pressing



0.1 … 99.9

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 55.

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

menu >ADJUST<, submenu >ATC SENOR - EXT<; set ATC STATUS< to >OFF< (See page 49).

Attention:

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 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

Pt100 M+R

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

Menu functions

9.5.2. Dynamic internal

°C

NORM temp. stabilit y

PER

Setpoint

NORM temp. stability

PER

temperature ramp

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

Setting range: 0 ... 999

Setting range: 0.1 ... 99.9

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.

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

Setting range: 0.1 ... 99.9

Setting range: 3 ...9999

Setting range: 0 ... 999

Optimum setting

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

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

-EXTERNAL The heat-up curve reveals possible faulty settings of the

control parameter.

Xp too high or Tv too high

Inappropriate settings may produce the following heat-up curves:

Xp too low

Tv/Tn too high or Xp too high

Tv/Tn too low

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 62



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

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

Example: 1-point calibration

°C

because of physical properties.

Principle:

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.

M B (INT) T

T 1

3-point calibration

°C

T 1

TT 1 = Original curve

°C

B (EXT)

°C

Pt100

ext

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

Menu level 1



Level 2 Parameter level



 Press the key if parameter is to be retained.

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



 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.

and

 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 >

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.

INTERN< internal or the

Menu functions

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

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

A 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

)

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

1. Set circulator to internal control: MENU CONTROL page 44

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

80.00 °C

120.00 °C

160.00 °C



2. Set working temperature setpoint – SETPNT:

Refer to „Direct temperature setting “ page 23

 By pressing the key the circulator switches to the active

>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 and and

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.

(Example: <25>).

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

Menu level 1



Level 2 Parameter level

 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

An ATC calibration is to be carried out.



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

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



Set to >NO<

 The parameter flashes, switch by pressing

and .

 The parameter flashes, switch by pressing

and .

A >3-point< calibration is carried out.

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

(119) +

 Decimal digits flash, set by pressing

(50) +

The second of 3 points is calibrated.

The value is only indicated.

 Integer digits flash, set by pressing

(159) +

 Decimal digits flash, set by pressing

(30) +

The 3-point calibration is completed

5. Return to standard operation



 Set >YES< after calibration.

(Standard operation)

9.8. MENU LIMITS

Menu level 1



Level 2 Parameter level

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



0 … 100 %



0 … 100 %



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

 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

 The value flashes, set by pressing mit

 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



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 27), 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 - > Set the value of > INT MAX at least 5 °C below the value of

>SAFETMP<.

ALARM CODE 14<.

 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.

[

]

200

150

100

75 50 25

°C

BandOben

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:

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.

Bad intern System extern

BandUnten

0 °C ... 200 °C

Sense of a band limitation:

 Protection of objects and samples by

gentle temperature control

 Protection of e.g. glass reactors from

thermal shock.

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

min

Troubleshooting guide / error messages

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). Repair by authorized JULABO service personnel.

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. Reconnect the control line or repair short-circuit.

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

Type of warning: set to >warning< or >alarm< (refer to page 26)

Error message with ticker: > LOW TEMPERATURE WARNING-CHECK LIMITS < Low temperature warning or Low temperature alarm.

Typ of warning: set to >warning< or >alarm< (refer to page 26)

Error message with ticker: > WORKING SENSOR ALARM-CALL SERVICE < Cable of working temperature sensor is disconnected or short-circuited.

to stop the signal

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 < Other errors

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 defect.

Error message with ticker: > CLEAN CONDENSER OR CHECK COOLING WATER <

Insufficient cooling of condenser. Clean the air-cooled condenser. Check the flow and the temperature of the cooling water of a water-cooled condenser.

Error message with ticker: > COMPRESSOR FAILURE-CHECK REFRIGERATOR <

Stage 1 of the compressors does not work. Automatic restart after short cool-down, message E 21 goes off.

Stage 2 of the compressor does not work. Cooling machine – overload protection

The driving motor of the cooling compressor is equipped with an overload protection which is triggered by increased internal current consumption.

Shutdown can be caused by

- insufficient ventilation,

- insufficient wall distance,

- soiled condenser,

- high room temperature

- switching off and on in short sequence

Excess temperature in stage 1 of the compressor.

temperatures or excessive

Excess temperature in stage 2 of the compressor.

Short circuit of control line to cooling machine during self-test.

Troubleshooting guide / error messages

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

The cable of the excess temperature protector has been disconnected or short-circuited

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

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

4 s

By quickly switching off and restarting the unit the alarm is cancelled. If the error occurs once more after the restart, a remote diagnosis is required.

1545

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

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

Press 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.

A M P

Mains circuit breakers (resettable) 15 A

Cooling machine: Fuse T 10.0 A, dia.5 x 20 mm The mains fuses (8b) on the rear of the unit may easily be exchanged as shown on the left.

key for a non-recurring, automatic change of the

Warning:

Before exchanging the fuses, turn off the mains power switch and disconnect the power plug from the mains socket! Only use fine fuses with a nominal value as specified.

Example:

Manufacturer Supplier Type Order No. Wickmann Wickmann G- fuse insert

No. 19195

T10,0A 5x20 mm

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. cellular phones).

Socket for external Pt100 sensor

Pin assignment: 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.

Pt100

ext. Pt100

Shield Plug

Look on

soldering side.

1 6

RS232C

Accessories:

8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m 8 900 110 USB interface adapter cable

RS232 serial interface

This port can be used to connect a computer with an RS232 cable for remote control of the circulator.

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!

RS232 interface cable Circulator (9-pol) PC (9-pol) Pin 2 RxD Pin 3 TxD Pin 5 GND Pin 7 RTS Pin 8 CTS

Order No. Description

 Pin 3 TxD  Pin 2 RxD  Pin 5 GND  Pin 8 CTS  Pin 7 RTS

Remote control

/ Control output

The circulators or as output for alarm messages.

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! 5 Cooling pulse

connector may be used for control of JULABO refrigerated

12. Remote control

12.1. Setup for remote control

1 6

RS232C

1. Check the interface parameters for both interfaces (on circulator and PC) and make sure they match. (Serial interface refer to page 48)

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

3. Connect both units with an interface cable..

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

12.2. Communication with a PC or a superordinated data system



A transfer sequence consists of:

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

In remote control mode, the start command and all values to be set must be 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 commands: retrieve parameters out commands: set parameters

Important times for a command transmission:

To ensure a safe data transfer, the time gap between two commands should be at least 250 ms. The circulator automatically responds to an followed by a LF (Line Feed). The next command should only be sent after 10 ms.

The out commands are valid only in remote control mode. Command to set the working temperature > SETPNT 1< to 55.5 °C

out_sp_00 Command to retrieve the working temperature > SETPNT 1< in_sp_00 Response from the circulator: 55.5

in and out commands.

in command with a data string

 55.5



Remote control

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_05 0 Stop the unit = R –OFF-. out_mode_05 1 Start the unit. 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_01 xxx.xx Set working temperature. „SETPNT 2“ out_sp_02 xxx.xx Set working temperature. „SETPNT 3“

out_sp_03 xxx.xx out_sp_04 xxx.xx

Use working temperature > SETPNT 1< Use working temperature > SETPNT 2< Use working temperature > SETPNT 3<

Set high temperature warning limit „OVERTMP“ Set low temperature warning limit „SUBTMP“

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 in the internal bath and external system.

out_par_06 xxx Xp control parameter of the internal controller. 0.1 ... 99.9 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_10 xxx Proportional portion of the cascade controller. 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_14 xxx Minimum internal temperature of the cascade controller. out_par_15 xxx out_par_16 xxx

Band limit (upper) 0 ... 200 °C Band limit (lower) 0 ... 200 °C

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_03 none Temperature value registered by the safety sensor. in_pv_04 none

in_sp_00 none Working temperature „SETPNT 1“ 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_sp_07 none Pump pressure stage

in_par_01 none Te - Time constant of the external bath. in_par_02 none Si - Internal slope

Status message, error message (see page 66)

Setpoint temperature of the excess temperature protection

High temperature warning limit „OVERTEMP“ Low temperature warning limit „SUBTEMP“

in_par_03 none Ti - Time constant of the internal bath. in_par_04 none CoSpeed - Band limit (max. difference between the

temperatures in the internal bath and external system).

in_par_05 none Factor pk/ph0:

Ratio of max. cooling capacity versus max. heating capacity in_par_06 none Xp control parameter of the internal controller. in_par_07 none Tn 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. in_par_13 none Adjusted maximum internal temperature of the cascade

controller. in_par_14 none Adjusted minimum internal temperature of the cascade

controller. in_par_15 none Band limit (upper) in_par_16 none Band limit (lower)

Remote control

Command Parameter Response of circulator

in_mode_01 none Selected setpoint:

0 = SETPNT 1 1 = SETPNT 2 2 = SETPNT 3 3 = Last setpoint setting was carried out

through an external programmer

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.

1 = Temperature control with external Pt100 sensor.

Circulator in Stop/Start condition: 0 = Stop

1 = Start

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 WARNING

-04 LOW TEMPERATURE WARNING

-05 WORKING SENSOR ALARM

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.

Error messages

-06 SENSOR DIFFERENCE ALARM

-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 REFRIGERATOR

-21 WARNING: COMPRESSOR STAGE 1 DOES NOT WORK

-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.

JULABO Service – Online remote diagnosis

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 download from www.julabo.de

 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.

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

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 settings are made.

 Data is read out and shown on the monitor

divided into the sections >Einstellungen/Settings<, >Alarmspeicher/Alarms stored<, >Blackbox<

 see example

 After pressing >Speichern/Save<, a text file is

created. The program suggests a filename >C:\model description and barcode no.<. Modifications are possible.

 E-mail this file to service@julabo.de, JULABO's

service department. JULABO is thus able to provide rapid support.

\ EasyBlackBox.

free

14. Cleaning / repairing the unit

Caution:

 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

personnel only.

Maintaining the cooling performance

To maintain the full cooling performance, clean the condenser from time to time.

 Switch off the unit, disconnect mains power cable.  Remove the venting grid.  Clean the ribbed condenser with a vacuum cleaner.

 Replace the venting grid.  Switch on the unit.

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.

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.

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

JULABO F38-ME User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual